Showing posts with label neuropsychology. Show all posts
Showing posts with label neuropsychology. Show all posts

August 25, 2013

Forensnips aplenty, forensnips galore

Everybody knows that the war is over
Everybody knows the good guys lost
Everybody knows the fight was fixed
The poor stay poor, the rich get rich
That's how it goes, Everybody knows

I can't seem to get Leonard Cohen’s haunting Everybody Knows out of my mind.

Perhaps it's because I was just down in Alabama, the belly of the beast, working on a tragic case. With the highest per capita rate of executions in the United States, the Heart of Dixie State kills people for crimes that other nations punish with probation. No exaggeration. It was jarring to drive around  Montomery and see the close proximity of historic mansions to abandoned homes and decaying housing projects. The juxtaposition is fitting, as Montgomery claims the dual distinctions of being the "cradle of the Confederacy" and the "birthplace of the Civil Rights Movement."  

Montgomery, Alabama (c) Karen Franklin 2013
Or maybe it's a flashback to Elysium, in which the one percenters have left Earth’s teeming masses to rot away while they luxuriate on an idyllic orbiting satellite. The scene in the parole office, with a robot parole agent delivering a quick risk assessment and then pushing meds, is worth the price of admission, although the film is marred by interminable hand-to-hand combat scenes and a ridiculous Hollywood ending.

David Miranda, held hostage
by British security forces

Or, it could be because I’m still riled up over the British government's abuse of David Miranda. He is the Brazilian partner of journalist Glenn Greenwald (think Edward Snowden). In what can only be called an outrageous effort to intimidate journalists, the Brits detained Miranda at Heathrow Airport for nine solid hours -- the maximum allowed under the British Terrorism Act -- before finally releasing him sans his laptop, cell phone and camera. Under the Terrorism Act, he was not entitled to counsel, nor to decline to cooperate. I sure hope it backfires and incenses journalists; it certainly fired up USA Today columnist Rem Rieder (whose column I highly recommend).

* * * * *

I feel bad about the dearth of posts recently. It's been a hectic period. I'll try to make up for my lapse by packing this post with lots of links to forensic psychology and criminology news and views from the past few weeks:

Evidence-based justice: Corrupted memory

Nature magazine's profile of Elizabeth Loftus and her decades-long crusade to expose flaws in eyewitness testimony is worth a gander.

Psychopathic criminals have empathy switch

New research published in the journal Brain indicates that psychopaths do not lack empathy, as is often claimed. Rather, they can switch it on and off at will. The study, out of the Netherlands Institute for Neuroscience, is freely available online. BBC also has coverage.  

The demographics of sexting

Sexting is becoming increasingly commonplace. But practices and meanings differ by gender, relationship and sexual identity, according to a new article, also available online, in the journal Cyberpsychology, Behavior, and Social Networking.

Brainwashed video discussion

New York Times columnist David Brooks just interviewed psychiatrist Sally Satel and psychologist Scott Lilenfield about their new book, Brainwashed, which is getting quite a bit of media buzz. The book is a workmanlike, if a bit superficial, exploration of the allure of "mindless neuroscience." If you’ve got 65 minutes, I recommend watching the video discussion.

Prison news: Hunger strike, juveniles, the elderly, women

On the prison front, a lot has been going on. California prisoners are into Day 50 or so of their hunger strike over solitary housing (a condition that the Department of Corrections denies, despite many men being kept in segregation units for years and even decades) and other cruel conditions. With prisoners' health deteriorating, a court order has been issued allowing force feeding if necessary to forestall deaths. Mainstream media reporting has been minimal, but at least Al Jazeera's got you covered.  

Even more local to me, a lawsuit has been filed over solitary confinement of juveniles in Contra Costa County. The lawsuit, filed in U.S. District Court, accuses county officials of flouting state laws mandating that juvenile detention facilities be supportive environments designed for rehabilitation.

Meanwhile, NBC news is sounding an alarm over the increasing number of elderly people in U.S. prisons. NBC sounds mostly worried about the cost to taxpayers of prisons teeming with upwards of 400,000 elderly prisoners by the year 2030. Read ithttp://usnews.nbcnews.com/_news/2013/06/29/.UeV62HppQL8.twitter, and weep. 

Piper Kerman, author of the memoir Orange Is the New Black that's become a trendy Netflix series, is also sounding an alarm. In a New York Times op-ed, she writes about a federal plan to ease overcrowding in men's prisons by shipping about 1,000 women from Connecticut down to Alabama and points beyond, where they will be even more estranged from their families. As Kerman notes: "For many families these new locations might as well be the moon." I recommend her thoughtful essay on alternatives for low-risk women prisoners. 

In a more promising development, the U.S. Justice Department has announced efforts to curtail the stiff drug sentences that have caused much of this overcrowding in the first place. The U.S. prison system is so bloated, so costly, and so irrational, that even conservatives are calling for reform. Better late than never, I suppose.

By the way, Florida has executed John Errol Ferguson, the prisoner whose controversial case I blogged about earlier this year, whose competency was contested in part because of his insistence that he was the "Prince of God." The American Bar Association had filed an amicus brief asking the U.S. Supreme Court to clarify the standard for competency for execution being applied in the case. 

Sex offender news

In yet another in a series of registry-facilitated vigilante attacks, a South Carolina man has been arrested for killing a sex offender and his wife in the mistaken belief that the man was a child molester. At the same time, there are signs that overzealous laws that contribute to such stigmatization are being scrutinized more closely. For example, a federal judge has struck down a Colorado city's ordinance restricting where registered sex offenders can live, ruling that it conflicts with a state law requiring parolees to be reintegrated into society. An appellate panel in North Carolina has also struck down a law that banned registered sex offenders from using social media sites. The state Court of Appeals agreed with the challenger that the law violated his Constitutional rights to free speech and freedom of association. 

Dispute over expert witness credentials

Finally, there's a big brouhaha in South Dakota over the credentials of a psychologist who frequently testifies as an expert witness in child custody cases. The credentials of the widely respected psychologist, Thomas Price, became an issue during a child custody dispute. It was ascertained that he had earned his PhD in behavioral medicine from an online degree mill called Greenwich University on Norfolk Island, Australia, that was subsequently shuttered by the Australian government. According to an expert on diploma mills quoted by the Sioux Falls Argus Leader, degree mills often adopt the names of respected English universities. Price's resumé says he earned a Ph.D. in behavioral medicine from Greenwich University, without noting the Norfolk Island location. "Typically," notes the article, "people don’t get caught using an unaccredited degree until they assume a high-profile position ... or they do something that causes another person to research their backgrounds…. If you stay under the radar, you can get by."

Science blogger

Finally (this time I really mean it), for those of you who are into offbeat science, I've just added a new blog, Mike the Mad Biologist, to my blog roll (which can be found a little ways down the right column of my blog site). Mike is prolific and wide-ranging in his news links, with a creative spin. 

Hat tips to Jane, Terry, Kirk and others

January 3, 2013

"America's Real Criminal Element: Lead"

There are dozens of competing theories about the causes of crime. But only one fits perfectly with the data, claims a bold new investigative report. And that is lead poisoning.

"An astonishing body of evidence" on the international, national, local and even individual levels shows that much of the rise and fall of violent crime over the past half century is attributable to atmospheric lead from leaded gasoline popular from the 1940s through 1970s, according to the report by Kevin Drum in the current issue of Mother Jones magazine.

The theory has been around for about a decade, but it has been marginalized by criminologists, according to Drum, a political blogger.

As many of you know, childhood lead exposure has been linked to a permanent loss of gray matter in the prefrontal cortex, which controls executive functioning (emotional regulation, impulse control, attention, verbal reasoning, and mental flexibility). Lead also degrades the myelin that is necessary for efficient communication among neurons. Drum calls this a "double whammy":

"[Lead] impairs specific parts of the brain responsible for executive functions and it impairs the communication channels between these parts of the brain.... Even moderately high levels of lead exposure are associated with aggressivity, impulsivity, ADHD, and lower IQ. And right there, you've practically defined the profile of a violent young offender."


Drum isn't arguing that lead exposure automatically turns youngsters into criminal automatons. Rather, he says, the neurological effects of lead pushed vulnerable youngsters who were "already on the margin" over the edge into crime.

"Once you understand that, it all becomes blindingly obvious. Of course massive lead exposure among children of the postwar era led to larger numbers of violent criminals in the '60s and beyond. And of course when that lead was removed in the '70s and '80s, the children of that generation lost those artificially heightened violent tendencies."

The leaded-gasoline hypothesis explains some other demographic features of crime, Drum asserts, such as the diminishment of urban-rural gaps in murder rates in recent decades.

Drum concludes with a spirited argument for government-funded programs to vanquish the remaining lead in soils and homes:

"We can either attack crime at its root by getting rid of the remaining lead in our environment, or we can continue our current policy of waiting 20 years and then locking up all the lead-poisoned kids who have turned into criminals. … Cleaning up the rest of the lead that remains in our environment could turn out to be the cheapest, most effective crime prevention tool we have. And we could start doing it tomorrow."

I'm not sure I'm completely sold on it, but it’s a fascinating thesis, and certainly worth reading. I’d love to hear blog readers' reactions


The piece, published today in the January/February 2013 issue of Mother Jones, is available HERE.

April 23, 2012

Blogger wins scientific achievement award

Accepting the award. Photo credit: Michael Donner
I am pleased to report that I have been awarded the 2012 Distinguished Scientific Contribution in Psychology award. It struck like a thunderbolt in a clear blue sky; I had no idea I had even been nominated for an award until I got a phone call notifying me I had won. 

It was especially meaningful to come from the California Psychology Association. The only voice for California’s 18,000 licensed psychologists, the CPA tirelessly advocates for the profession as well as for the mental health needs of the general public in California.

For those of you who only know me as a blogger and/or a forensic psychology practitioner, I conducted pioneering research in the late 1990s into the motivations of hate crime perpetrators. I later extended that work to group rape, likening both forms of violence to cultural theater in which the actors publicly demonstrate masculinity, with their victims as dramatic props. (I'm excited about a forthcoming chapter in a cutting-edge text on multiple-perpetrator rape, due out next year.) I have also conducted historical research and published on the ethics of forensic diagnosis, and especially the contested sexual paraphilia of "hebephilia." More information on my research is available on my website and on Wikipedia.

The location of the awards ceremony could not have been more idyllic -- the gorgeous Monterey coast on a balmy weekend. The 270-degree view of the Monterey Bay and the surrounding hills from the 10th floor of the Marriott Hotel was breathtaking; unfortunately, a photo just can't capture it.

CPA President Craig Lareau presents award.
Photo credit: Patricia VanWoerkom
The quality of this year's convention trainings was impressive. Perhaps because the current president, Craig Lareau, is a forensic psychologist and attorney, there was a good deal of forensic programming. Alan Goldstein presented the latest on Miranda waiver evaluations (including the new instrument), Professor Gail Goodman gave an overview of the research on child witness accuracy, and there were workshops on forensic neuropsychology.

I especially enjoyed a presentation by Keely Kolmes of San Francisco and Heather Wittenberg of Maui designed to help psychologists step up their online presence. For anyone interested, Dr. Kolmes has some nice resources (HERE) for psychologists on the ethics of social media and on managing one's online reputation.

By the way, if you practice in California and don't belong to the CPA, I encourage you to join. The reconfigured CPA has a forward-looking leadership team headed by the dynamic Jo Linder-Crow and is doing essential advocacy work on behalf of psychologists and the public. It appears to have defeated (at least for the time being) an effort to axe our regulatory agency, the Board of Psychology, which would have left psychologists at the mercy of other professions. It's working hard to promote parity for mental health consumers. And it's tangibly supporting legislators who will lobby for progressive causes, for example prisoner rehabilitation instead of endless warehousing. So do your share, whether it's just paying dues or volunteering, so that all of the heavy lifting does not fall on just a few shoulders.

Sea Otter, Monterey Bay
Whether or not you belong to the CPA, if you are in California you might also consider donating to its Political Action Committee, which funds progressive politicians and reforms. The unfortunate reality is, politics is money-driven.

And now, sadly, it's back to the grindstone.

Related news: Your blogger profiled in the 2012 edition of advanced high school textbook, Forensic Science: Advanced Investigations.

December 18, 2011

Appellate court upholds exclusion of SPECT evidence

Yerba Buena Island, San Francisco Bay
On May 22, 2002, the body of Juliette Williamson was found washed up on Yerba Buena Island in the San Francisco Bay. Williamson and her long-time partner Bruce Brooks were well-known street performers known as the Chicago Brother and Sister Blues Band. For years, they had lived together in a purple school bus parked under a freeway.

Within days of Williamson's disappearance, Brooks gave three confessions to friends. He provided graphic details of how he bludgeoned her to death with a hammer after a drunken quarrel. He even took one friend to the location where he had tossed her body into the Bay; there, police later recovered blood samples that matched Williamson's DNA.

The couple’s 16-year relationship had always been tumultuous, but it was deteriorating in the weeks before the killing. Brooks had resumed smoking crack cocaine and had openly threatened to kill Williamson if she left him, according to trial testimony.

Bruce Brooks. Photo credit: M. Macer, S.F. Chronicle
By the time he went to trial six years later, Brooks's story had changed. He testified that Williamson attacked him and knocked him "silly." He saw a fluorescent number three in his mind; the next thing he knew he was dropping Williamson's body over the bridge to bury her at sea. He had no recollection of killing her, but figured he must have.

A defense-retained neuropsychologist, Myla Young, testified that Brooks had frontal lobe damage that might cause him to begin a repetitive act like hitting and not stop until worn out. The impairment also made him prone to amnesia, she said.

But the jury wasn't buying. After three days of deliberations, jurors convicted Brooks of second-degree murder. He was sentenced to 15 years to life.

Appeal: Unfair to exclude SPECT evidence

Brooks appealed, citing the trial judge's exclusion of Single Photon Emission Computed Tomography (SPECT) evidence. He had hoped to introduce the colorful brain scans to convince the jury he had organic brain damage that made it impossible for him to premeditate a murder, or even form a conscious intent to kill. Psychiatrist Daniel Amen was prepared to testify that Brooks' scan, which measures blood flow to certain regions of the brain, looked "very abnormal."

San Francisco trial judge Cindy Lee excluded the SPECT testimony based on concerns about both the method and the messenger.

Daniel Amen promotes his Amen Clinics
Under California's Kelly-Frye standard, for scientific evidence to be admissible in a criminal case, there must be proof that the technique is considered reliable in the scientific community and that the witness is a qualified expert who used correct scientific procedures. The party seeking to introduce the evidence has the burden of proving its admissibility by a preponderance of the evidence.

Regarding the method, the judge ruled that research has not established that SPECT scans can accurately determine cognitive impairment, much less impairment so severe as to preclude the requisite mental states for premeditated murder. While the scans were "pretty glitzy" and "high tech," their colors lacked meaning and had a high potential to confuse the jury, she said.

As to the messenger, the judge had "a 'considerable question' ... as to whether [Amen] is an independent and unbiased expert and truly represents a cross-section of the relevant scientific community," according to a just-issued appellate ruling.

The First District Court of Appeal upheld the trial judge's ruling, endorsing her concerns about both the method and the messenger.

The appellate justices were unable to find any published appellate decision on the issue of whether SPECT evidence is admissible in a criminal trial to support a theory that a defendant's ability to form a specific intent was impaired by organic brain damage. So they conducted their own independent review of the scientific status of SPECT evidence. They were ultimately under-impressed.
[W]e agree with the trial court that defendant failed to establish that SPECT was generally accepted by the scientific community as showing brain injuries that were relevant to the defense theory that he did not form the intent necessary to commit murder. Defendant did not establish a generally accepted correlation between blood flow to a particular part of the brain and any particular behavior…. [A]s the trial court correctly summarized the testimony, "[T]here’s a lack of any testimony that there’s any quantitative percentage of blood flow, specific cognitive functions or other factors that will be impaired or even affected."

Regarding the messenger, the appellate justices said it was within the trial judge's discretion to raise "serious questions about Amen’s qualifications to testify as an expert witness. The court doubted that he could be independent and unbiased in light of his long engagement in significant entrepreneurship activities regarding SPECT via the Amen Clinics and activities as a proponent of the utility of SPECT scan imaging."

Amen's methods questioned

Judge Lee and the appellate panel were not alone in viewing Amen's activities with suspicion.

Amen, a graduate of the now-defunct Oral Roberts University School of Medicine, has said he was "led by God to pursue this work." And the missionary zeal with which he promotes SPECT for everything from depression and anxiety to aggression and drug abuse has raised concerns among other medical professionals.

In 2005, Amen's unconventional treatments had caught the attention of Quackwatch, an international network dedicated to exposing medical "frauds, myths, fads, fallacies, and misconduct." Three years later, Salon ran a piece by neurologist Robert Burton, criticizing PBS for running Amen's "self-produced infomercial" touting his unproven intervention for Alzheimer's disease:
It’s hard to dismiss the religious undertones of Amen’s work…. And yet Amen’s sense of calling hasn't led him to undertake the high-quality clinical investigations that would lend scientific credence to his claims…. Amen states that he has read more than 40,000 SPECT scans and holds himself up as a world expert. But a brief quote from his TV special quickly reveals a very peculiar method of determining what constitutes a normal SPECT scan…. Using Amen’s figures from his TV program, only 3 percent of those he has studied have been interpreted by himself and his staff as being normal. Put another way, 97 percent of patients who attend Amen’s clinic can expect to be told that their SPECT brain scan is abnormal.

But the controversies surrounding neuroimaging in court go far beyond those swirling around Amen and his SPECT scans. Echoing the trial judge's concerns in the Brooks case, the UK Royal Society just this week warned that jurors may be far too impressed with brain images, not recognizing their limited applicability to real-world legal questions.

POSTSCRIPT: On Feb. 29, 2012, the California Supreme Court denied review of the case. 

August 24, 2011

Steffan's Alerts #7: Neuromaging, juveniles, and perceptions of injustice

Click on a title to read the article abstract; click on a highlighted author's name to request the full article.

Perceptions of wrongful convictions by criminal justice personnel


In a new issue of Crime and Delinquency, Brad Smith and colleagues surveyed attitudes of criminal justice participants in Michigan. According to their findings, defense attorneys perceived that wrongful convictions occur more frequently than did police, prosecutors, and judges. Of the professionals surveyed, only defense attorneys viewed this concern as warranting reforms in the justice system.


In another article in Crime and Delinquency, Kristin Johnson and coauthors indicate that incorporating graduated sanctions into predictions of recidivism diminishes the predictive utility of waiver to adult court. Their results draw attention to the role of graduated sanctions and treatment programming for juvenile offenders.



N.J. Schweitzer and colleagues presented neuroscience-based testimony and neuroimagery to jury-eligible participants in mock court experiments. As reported in a new issue of Psychology, Public Policy, and the Law, participants rendered opinions on criminal culpability and sentencing. Neuroimagery, the authors reported, affected jurors' judgments no more than verbal testimony based on neuroscience.



Also in Psychology, Public Policy, and the Law, Ashley Batastini and colleagues report that the Act’s classification system failed to predict sexual or nonsexual reoffending among a small sample of juveniles who were followed over a two-year period. In addition to their exploratory study, they discuss key concerns in the application of the Act to juveniles.

Steffan's alerts are brought to you by Jarrod Steffan, Ph.D., a forensic and clinical psychologist based in Wichita, Kansas. For more information about Dr. Steffan, please visit his website.

April 24, 2011

Encephelon #86: Blogging scientific mysteries

Of Florence Nightingale, free will, psychopath-hunters and -- yes -- even octopuses

It’s my turn to host the neuroscience and psychology blog carnival, Encephalon. This month, my blogger colleagues were busy analyzing fascinating unsolved mysteries in the wide-ranging fields of brain and behavior. So all of you sleuths out there, dust off your magnifying glasses and come exploring with me....

The mystery of the bedridden activist

At Providentia, psychologist Romeo Vitelli probes the mysteries surrounding pioneering public health activist Florence Nightingale (1820-1910) in a 2-part series, "The Bedridden Activist." Dr. Vitelli (who for all of you forensic folks escaped Ontario's maximum-security Millbrook Correctional Centre after a 15-year stint) marvels at Nightingale's indefatigable crusade for the poor and downtrodden, despite a debilitating illness that rendered her unable to travel. While discussing the theories of her mysterious illness, Dr. Vitelli also corrects the historical record:
Although Florence Nightingale opposed the Contagious Diseases Act, it was not because she opposed the germ theory of disease (as some critics later argued). Even though germ theory was not taken seriously before Joseph Lister and Louis Pasteur made the theory acceptable, Nightingale actually pioneered the need for sanitation and antiseptic conditions. Her opposition to the legislation that was eventually passed stemmed from the intrusive nature of the Act (including mandatory screening of prostitutes for syphilis and detaining infected women). When the act was passed in 1864, she campaigned for its repeal. 

The mystery of free will

Should a man who takes out a murder contract on his wife and children be held responsible? For most people, the obvious answer is, “Of course!” But for pure determinists, free will is an illusion; no one is responsible for anything.

That doesn't fit well with the assumptions of our criminal and civil court systems. Or does it? As Peter reports in his post on "expertimental free will" at Conscious Entities, an odd thing happens when determinism runs up against moral values. In an experiment in which subjects were told to assume that determinism is correct (meaning people are not responsible for their actions), subjects still assigned responsibility to the man who took out a contract on his family.

The mysterious octopus

Octopuses fascinate scientists. That's partly because they are so different from mammals like us. Not only are their brain regions not arranged to correspond with bodily systems, but their individual arms can control some movement without input from their brain. Over at Cephalove, Mike Lisieski discusses a study on the unsolved mystery of exactly how an octopus’s brain uses vision to control ongoing movements. The post is, "The octopus, the maze, and why it matters: behavioral flexibility and sensory-motor integration."

The mystery of the sightless mind

While some researchers study the role of vision in the elusive octopus, others study it in humans. Janet Kwasniak at Thoughts on Thoughts reports on new research into the brains of sightless humans. In “How is the world represented without vision?,” she muses on how, given the importance of vision to our species, it is possible to produce a conscious model of the world without it. And how does the brain use the third of the cortex involved with vision when vision is idle? Attempting to solve those mysteries, the researchers used fMRI technology to compare the brains of congenitally blind people, blind people who were once sighted, and sighted and blindfolded sighted individuals.


The mystery of the calcium in the brain

Here's one that I bet few of my readers have thought much about:

Zen Faulkes at Neurodojo, a biology professor at the University of Texas-Pan American, ponders long-held assumptions about the role of calcium in neuronal functioning. How do you prove the neurons don't use calcium, he wonders? And what do they use instead? These are among the questions addressed in the post, “Neurotransmitter release without calcium.”


The mystery of the ulcer-less zebra

Daniel Lende at Neuroanthropology is highlighting the intriguing teachings of Robert Sapolsky, a MacArthur Fellow who divides his time between teaching biology and neuroscience at Stanford University and conducting stress research on baboons in Kenya. In "Robert Sapolsky and Human Behavioral Biology," Daniel provides links to an entire course of study on human behavioral biology that's available for free online at YouTube. If you’re interested in anything from memory and plasticity to schizophrenia, language, individual differences, and human sexual behavior, this 25-session course is worth checking out.


After reading Daniel’s post, I couldn't resist buying a copy of Sapolsky's latest book, Why Zebras Don't Get Ulcers, which explores stress and stress-related illness. To answer the question: Zebras don't get ulcers because they – like our ancestors – do not have to confront the chronic stresses of contemporary life, which our bodies were not designed to withstand.


The mystery of the psychopath hunter

Back to this blog’s central theme of forensic psychology I bring you (drum roll) the biggest mystery of all: What motivates US! I blogged about research into why some psychologists give higher scores than others on a measure of psychopathy. In case you haven't read the post I won't give it all away here, but the researchers found that subjects' levels of empathy and excitement-seeking affected whether they saw others as psychopathic. The post is, "Psychopathy: A Rorschach test for psychologists?"

That's it for now. Past -- and future -- issues of Encephalon are available HERE

February 27, 2011

Encephalon carnival 84: Psychology-neuroscience roundup

The dominant theme of this month's Encephalon blog carnival is that no matter how straightforward something may appear, it is not always that simple. Among the intriguing offerings:
  • In The Mathematician in the Asylum, forensic psychologist Romeo Vitelli at Providentia explores the life of Andre Bloch, a leading French mathematician who spent 30 years in an asylum after knifing three family members to death.   
Hosting the 84th edition of Encephalon is Janet Kwasniak, who blogs about consciousness at “Thoughts on Thoughts.” Janet is in France, but wherever you are the content is just a click away – HERE.

January 27, 2011

Encephalon carnival: Psychology-neuroscience roundup

The Encephalon carnival is back!

Blog carnivals are an effort to streamline the blogosphere's massive resources through timely and topical online magazines. Encephalon is one such rotating carnival, featuring the blog's best neuroscience and psychology writing.

The 83rd edition, published today, is well worth checking out. There’s something for everyone, whether it's Neuroanthropology's look at prodromal psychosis, Dr. Shock's take on what makes a good bodyguard, Charbonnier's musings on confabulation and free will, Neurocritic's report on how Facebook affects the size of your amygdala, or the latest news and views on autism.

Hosting this month's carnival is Dr. Romeo Vitelli at Providentia (“a biased look at psychology in the world”), who is featuring his two-part series on the historical mystery surrounding Friedrich Nietzsche.

The complete edition is HERE.

January 14, 2011

fMRI controversies: Special journal section

A special section of the Association for Psychological Science's journal, Perspectives on Psychological Science, is dedicated to controversies surrounding functional Magnetic Resonance Imaging, or fMRI, technology. The articles* are:
  • Neuroimaging: Voodoo, New Phrenology, or Scientific Breakthrough? Introduction to Special Section on fMRI by Ed Diener -- In response to the widespread interest following the publication of Vul et al (2009), Perspectives Editor Ed Diener invited researchers to contribute articles for a special section on fMRI, discussing the promises and issues facing neuroimaging.
  • Mistreating Psychology in the Decades of the Brain by Gregory A. Miller -- Scientists tend to consider psychology-biology relationships in two distinct ways: by assuming that psychological phenomena can be fully explained in terms of biological events and by treating them as if they exist in separate realms. These approaches hold up scientific progress and have important implications for clinical practice and policy decisions (e.g., allocating research funds).
  • Brain Imaging, Cognitive Processes, and Brain Networks by Brian D. Gonsalves and Neal J. Cohen -- The growth of neuroimaging research has led to reflection on what those techniques can actually tell us about cognitive processes. When used in combination with other cognitive neuroscience methods, neuroimaging has promise for making important advancements. For example, neuroimaging studies on memory have raised questions not only about the regions involved with memory but also about component cognitive processes (e.g., the role of different attention subsystems in memory retrieval), and this has resulted in more theorizing about the interactions of memory and attention.
  • Mapping Mental Function to Brain Structure: How Can Cognitive Neuroimaging Succeed? by Russell A. Poldrack -- To understand the anatomy of mental functions, researchers may to need to move away from commonly used brain mapping strategies and begin searching for selective associations. This will require more emphasis on the structure of cognitive processes, which may be achieved through development of formal ontologies (e.g., the Cognitive Atlas) that will describe the “parts” and processes of the mind. Using these ontologies in combination with large-scale data mining approaches may more directly relate mental processes and brain function.
  • The Appeal of the Brain in the Popular Press by Diane M. Beck -- Why do people like the brain so much? Brain-related articles in the press, especially ones about fMRI research, tend to be very popular with the general public, but many of these articles may result in misinterpretations of the science. Part of the popularity may be attributed to their deceptively simple message: Perform an action and a certain area lights up. In addition, people are more confident in “biological” images than in the behavioral phenomena on which the images are based. In order to maintain trust with the public, scientists have a responsibility to provide the press with descriptions of research and interpretations of results research that are clear, relevant, and scientifically accurate.
  • Frontiers in Human Neuroscience: The Golden Triangle and Beyond by Jean Decety and John Cacioppo -- The development of neuroimaging has created an opportunity to address old questions about brain function and behavior in new ways and also to uncover new questions. The knowledge that emerges from neuroimaging studies is more likely to be beneficial when combined with techniques and analyses that break down complex constructs into structures and processes, measures that gauge neural events across different times, and animal studies.
  • Bridging Psychological and Biological Science: The Good, Bad, and Ugly by Arthur P. Shimamura -- The advent of functional neuroimaging has brought both praise and criticism to the field of psychological science. Although most studies relying on fMRI are correlative, they do offer some clues about the biology underlying psychological processes. However, it is not sufficient to show which area of the brain is involved in a particular cognitive process; rather theories need to address “how?” questions (e.g., How does the hippocampus contribute to remembering?) in order to best bridge psychological and biological science.
*Note: Click on any of the highlighted author names to send an email to the author, requesting a copy of the article.

Hat tip: Ken Pope

February 24, 2010

Blogosphere recommendations

Mind Hacks

I have been checking out Mind Hacks since it featured a really nice review of my blog. The blog evolved out of the 2004 book by the same name, in which authors Tom Stafford (a cognitive neuroscientist) and Matt Webb (an engineer and designer) provide 100 exercises that teach readers neuroscience theories through games and tricks.

Among the scientists who contributed "hacks" is Vaughan Bell, who seems largely responsible for keeping the blog alive through his quirky and eclectic posts. Dr. Bell is a psychologist currently working in Medellín, Colombia and also a visiting research fellow in the Department of Psychological Medicine and Psychiatry at the Institute of Psychiatry, King's College London.

Just to give you an idea of some of his near-daily offerings, he recently posted on everything from decorative skull shaping to dream smoking (that's when you dream about cigarettes after you quit smoking) to new research on cave paintings. I particularly enjoyed his link to an amazing Russian website that features historical art by and about the mad. It reminded me of when I was living in Paris at age 10 and was influenced by an exhibit of art by schizophrenics that my mother took me to at the Louvres museum. More somberly, the prolific Bell reported on a new study in the Journal of Adolescent Health finding that it's a myth that teens think they are invincibile; actually, they greatly overestimate their chances of dying soon. I found it interesting, because the behaviors that result from either thinking error could look very similar.

The psychology of the angry American

Elsewhere in the blogosphere, my forensic psychology colleague Paul G. Mattiuzzi in Sacramento has an interesting analysis at his Everyday Psychology blog of the psychology of the pilot who intentionally crashed his plane into an IRS building in Austin, Texas on February 18.

Dr. Mattiuzzi based his analysis on the diatribes that Joe Stack wrote before taking his last flight. Although Mattiuzzi doesn't specifically reference the so-called Tea Party Movement, his comments on the "lunatic fringe" seem to apply to these disaffected white Americans:
There is in this country today, it seems to me, a gathering storm of mindlessly angry people who are "fed up" for reasons they can barely explain. There are people in the media who are telling them they should be angry, and perhaps more importantly, that they should be afraid….

[These] people have come to identify the government as an enemy of the people. They are grandiose in their belief that they understand it all better than anyone else. They are self-righteous in their indignation and in their resentment. They express a sense of entitlement, arguing that they have a right not just to their own opinions, but also to their own facts. They shout until no one can hear them and then complain that no one is listening. They expect their individual voice to prevail and then complain that they have been denied representation. They do not wish to contribute to the common good, but demand all the benefits they have been promised. Like Stack, they bemoan corporate greed while demanding that greed be unfettered.
Dr. Mattiuzzi hopes that acts like Joe Stack's do not inspire copycats. As he concludes (in my favorite lines from his essay):
Joe Stack wanted us to believe that in his abject failure, he had achieved success. It's as if he listened to only part of what Bob Dylan once sang ("there's no success like failure"), without bothering to stick around and hear the end of the lyric: "and failure's no success at all."
Mind Hacks is HERE. Everyday Psychology is HERE.

June 7, 2009

Voodoo science update

Remember my post back in March on the critique of "voodoo" brain science? That article has generated a tremendous amount of buzz, both academically and in the popular press. For those of you who want more info, a neuroscientist blogging at Neuroskeptic (motto: "More brains than a zombie's stomach") has an excellent analysis of the article and the resultant controversies, replete with lots of links. The most extensive discussion and collection of links I have found is over at the Amazing World of Psychiatry blog. Happy reading!

December 22, 2008

New journal issue loaded with hot topics

The current (December) issue of the Journal of the American Academy of Psychiatry and the Law has a slew of interesting articles on sex offender civil commitment, forensic brain imaging, religion and the death penalty, forensic assessment of problematic Internet use, psychotherapy with prisoners, competency case law, school shooter motivations, and other timely topics. Highlights include:

Use of DSM Paraphilia Diagnoses in Sexually Violent Predator Commitment Cases
This is the long-awaited article by DSM-III editors Michael B. First and Robert L. Halon, addressing diagnostic controversies in SVP civil commitment cases.

It is accompanied by two commentaries:
  • In Muddy Diagnostic Waters in the SVP Courtroom, forensic psychologist Robert Prentky and colleagues essentially agree with First and Halon’s critique. They state that misuse of the DSM in SVP cases is a serious form of "pretextuality."
Next comes a similar point-counterpoint series of three articles on functional brain imaging in court:
The full Table of Contents, with links to full-text pdf files, is here.

June 11, 2008

More on the McInerney antigay murder case

Defense may use emerging science of adolescent brain development

Greg Herek, a prominent scholar in the field of prejudice studies, wrote a good summary today about the case of 14-year old Brandon McInerney. As I noted yesterday, the 14-year-old will be arraigned Thursday on charges of murdering his gay classmate, 15-year-old Lawrence King.

Herek's post, which you can read at the UC Davis researcher's "Beyond Homophobia" blog, mentions the possibility of a defense based on emerging neuroscience technology, suggesting that the adolescent brain is not fully developed.

McInerney's attorney, Ventura County Public Defender William Quest, has said he will do everything he can to invoke the science of the developing brain at McInerney's trial. Quest maintains that immature brain development might mitigate the intent to kill.

"The crux of homicide is you have this intent to kill. It's thought out and coherent. If there is something that, given your brain development, puts you in a state that is not coherent, it mitigates that intent," he is quoted in the Ventura County Star as saying.

Quest may have a tough time convincing jurors that McInerney did not form the legally required intent to kill, in that the Young Marines member brought a gun to school and shot Lawrence King not once but twice in the head.

If a neuroscience defense emerges as a centerpiece of the nationally publicized case, it will likely draw attention to the current conflict in the field over whether the budding science is well enough established for the courtroom. (For more on that debate, see the Law & Neuroscience Project website and the Law and Ethics of Brain Scanning resources brought to you by the Sandra Day O’Connor College of Law at the University of Arizona.)

That controversy aside, it will be good news if Quest backs away from his earlier focus on blaming the school for the tragedy. Quest had publicly stated that administrators of the middle school where the killing took place were partly responsible because they allowed the victim to openly display his gender nonconformity.

Tom Kisken of the Ventura County Star has a lengthy summary of the neuroscience debate as it pertains to McInerney's case, available online here. Greg Herek's blog post is here.

May 22, 2008

Major ruling on forensic neuropsychology

Flexible wins epic
Battle of the Batteries


The Democrats have Obama versus Clinton. American Idol has the battle of the two Davids. But whoever heard of the battle between the fixed and the flexible batteries?

The New Hampshire Supreme Court, for one. And in that more obscure battle in the field of neuropsychology, the court this week handed a resounding victory to the flexible battery. Although I haven't seen anyone dancing in the streets, it's a victory that forensic psychologists and neuropsychologists should be celebrating.

A bit of background: The "fixed" battery approach involves rigid administration of a fixed set of tests. The most popular such batteries are the Halstead-Reitan and the Luria. The flexible or "Boston Process" approach, in contrast, involves administering a core set of tests, supplemented by extra tests chosen on the basis of specific case factors and hypotheses.

When I was a neuropsychology intern, I was trained in the Boston Process Approach. As it turns out, the overwhelming majority of neuropsychologists in a recent survey - 94% - said they use some type of flexible battery approach. As the New Hampshire Supreme Court pointed out, that makes it the standard of practice in the field.

The case involves the alleged lead poisoning of Shelby Baxter, now 13, when she was a toddler. The civil case against Ms. Baxter's landlord, whom the Baxters claim knew the apartment was contaminated, was dismissed after the trial judge excluded neuropsychological evidence using the Boston Process approach as not scientific. The case will now go forward.

The plaintiffs' neuropsychologist, Barbara Bruno-Golden, Ed.D, had substantial experience with lead-exposed children, and each individual test in her battery was published, tested, and peer reviewed, as befitting reliable science under the legal standard of Daubert and New Hampshire statutory law.

At a 6-day Daubert evidentiary hearing, the defense called controversial neuropsychologist David Faust, Ph.D., who testified that although Dr. Bruno-Golden's approach was generally accepted in clinical practice, it was not so in a forensic setting. The plaintiff's experts, as well as the American Academy of Clinical Neuropsychology in an amicus brief, correctly countered that there is no separate standard for forensic practice.

In its exhaustive and thoroughly reasoned opinion, the Supreme Court soundly rejected Faust's reasoning, issuing a monumental blow to the minority of forensic neuropsychologists who staunchly cling to the fixed battery approach.

"Under the defendants' position, no psychologist who uses a flexible battery would qualify as an expert, even though the flexible battery approach is the prevalent and well-accepted methodology for neuropsychology," the court pointed out. "Therefore, the implication … is that no neuropsychologist, or even psychiatrist or psychologist since, in their view, all combinations of tests need to be validated and reliable, could ever assist a trier of fact in a legal case."

The court held that any weaknesses in Bruno-Golden’s methodology - if indeed such existed - were properly handled through cross-examination and counterbalancing evidence in the adversarial trial process.

The case, Baxter v. Temple, is online here. A news article is here. A blog commentary at Traumatic Brain Injury is here.

Photo credit: 02ma (Creative Commons license)