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September 30, 2012

Ready for Your Close-Up?

Caltech study shows that the distance at which facial photos are taken influences perception PASADENA, Calif.—As the saying goes, "A picture is worth a thousand words." For people in certain professions—acting, modeling, and even politics—this phrase rings particularly true. Previous studies have examined how our social judgments of pictures of people are influenced by factors such as whether the person is smiling or frowning, but until now one factor has never been investigated: the distance between the photographer and the subject. According to a new study by researchers at the California Institute of Technology (Caltech), this turns out to make a difference—close-up photo subjects, the study found, are judged to look less trustworthy, less competent, and less attractive. The new finding is described in this week's issue of the open-access journal PLoS One. Pietro Perona, the Allen E. Puckett Professor of Electrical Engineering at Caltech, came up with the initial idea for the study. Perona, an art history enthusiast, suspected that Renaissance portrait paintings often featured subtle geometric warping of faces to make the viewer feel closer or more distant to a subject. Perona wondered if the same sort of warping might affect photographic portraits—with a similar effect on their viewers—so he collaborated with Ralph Adolphs, Bren Professor of Psychology and Neuroscience and professor of biology, and CNS graduate student Ronnie Bryan (PhD '12) to gather opinions on 36 photographs representing two different images of 18 individuals. One of each pair of images was taken at close range and the second at a distance of about seven feet. "It turns out that faces photographed quite close-up are geometrically warped, compared to photos taken at a larger distance," explains Bryan. "Of course, the close picture would also normally be larger, higher resolution and have different lighting—but we controlled for all of that in our study. What you're left with is a warping effect that is so subtle that nobody in our study actually noticed it. Nonetheless, it's a perceptual clue that influenced their judgments." That subtle distance warping, however, had a big effect: close-up photos made people look less trustworthy, according to study participants. The close-up photo subjects were also judged to look less attractive and competent. "This was a surprising, and surprisingly reliable, effect," says Adolphs. "We went through a bunch of experiments, some testing people in the lab, and some even over the Internet; we asked participants to rate trustworthiness of faces, and in some experiments we asked them to invest real money in unfamiliar people whose faces they saw as a direct measure of how much they trusted them." Alcoholism and Drug Abuse Counselors Continuing Education Across all of the studies, the researchers saw the same effect, Adolphs says: in photos taken from a distance of around two feet, a person looked untrustworthy, compared to photos taken seven feet away. These two distances were chosen by the researchers because one is within, and the other outside of, personal space—which on average is about three to four feet from the body. In some of the studies, the researchers digitally warped images of faces taken at a distance to artificially manipulate how trustworthy they would appear. "Once you know the relation between the distance warp and the trustworthiness judgment, you could manipulate photos of faces and change the perceived trustworthiness,'' notes Perona. He says that the group is now planning to build on these findings, using machine-vision techniques—technologies that can automatically analyze data in images. For example, one application would be for a computer program to have the ability to evaluate any face image in a magazine or on the Internet and to estimate the distance at which the photo was taken. "The work might also allow us to estimate the perceived trustworthiness of a particular face image," says Perona. "You could imagine that many people would be interested in such applications—particularly in the political arena." The study, "Perspective Distortion from Interpersonal Distance Is an Implicit Visual Cue for Social Judgments of Faces," was funded by grants from the National Institute of Mental Health and from the Gordon and Betty Moore Foundation. Written by Katie Neith

September 29, 2012

Popular HIV drug may cause memory declines

Johns Hopkins study suggests the commonly prescribed anti-retroviral drug efavirenz attacks brain cells The way the body metabolizes a commonly prescribed anti-retroviral drug that is used long term by patients infected with HIV may contribute to cognitive impairment by damaging nerve cells, a new Johns Hopkins research suggests. Nearly 50 percent of people infected with HIV will eventually develop some form of brain damage that, while mild, can affect the ability to drive, work or participate in many daily activities. It has long been assumed that the disease was causing the damage, but Hopkins researchers say the drug efavirenz may play a key role. People infected with HIV typically take a cocktail of medications to suppress the virus, and many will take the drugs for decades. Efavirenz is known to be very good at controlling the virus and is one of the few that crosses the blood-brain barrier and can target potential reservoirs of virus in the brain. Doctors have long believed that it might be possible to alleviate cognitive impairment associated with HIV by getting more drugs into the brain, but researchers say more caution is needed because there may be long-term effects of these drugs on the brain. "People with HIV infections can't stop taking anti-retroviral drugs. We know what happens then and it's not good," says Norman J. Haughey, Ph.D., an associate professor of neurology at the Johns Hopkins University School of Medicine. "But we need to be very careful about the types of anti-retrovirals we prescribe, and take a closer look at their long-term effects. Drug toxicities could be a major contributing factor to cognitive impairment in patients with HIV." For the study led by Haughey and described online in the Journal of Pharmacology and Experimental Therapeutics, researchers obtained samples of blood and cerebrospinal fluid from HIV-infected subjects enrolled in the NorthEastern AIDS Dementia study who were taking efavirenz. Researchers looked for levels of the drug and its various metabolites, which are substances created when efavirenz is broken down by the liver. Performing experiments on neurons cultured in the lab, the investigators examined the effects of 8-hydroxyefavirenz and other metabolites and found major structural changes when using low levels of 8-hydroxyefavirenz, including the loss of the important spines of the cells. Haughey and his colleagues found that 8-hydroxyefavirenz is 10 times more toxic to brain cells than the drug itself and, even in low concentrations, causes damage to the dendritic spines of neurons. The dendritic spine is the information processing point of a neuron, where synapses — the structures that allow communication among brain cells — are located. In the case of efavirenz, a minor modification in the drug's structure may be able block its toxic effects but not alter its ability to suppress the virus. Namandje N. Bumpus, Ph.D., one of the study's other authors, has found a way to modify the drug to prevent it from metabolizing into 8-hydroxyefavirenz while maintaining its effectiveness as a tool to suppress the HIV virus. "Finding and stating a problem is one thing, but it's another to be able to say we have found this problem and here is an easy fix," Haughey says. Haughey says studies like his serve as a reminder that while people infected with HIV are living longer than they were 20 years ago, there are significant problems associated with the drugs used to treat the infection. "Some people do seem to have this attitude that HIV is no longer a death sentence," he says. "But even with anti-retroviral treatments, people infected with HIV have shortened lifespans and the chance of cognitive decline is high. It's nothing you should treat lightly." HIV and AIDS CE Course ### The study was supported by grants from the National Institute on Alcohol Abuse and Alcoholism (AA0017408), the National Institute of Mental Health (MH077543, MH075673 and MH71150), the National Institute on Aging (AG034849) and the National Institute of Neurological Disorders and Stroke (NS049465). Other Hopkins researchers involved in the study include Luis B. Tovar y Romo, Ph.D.; Lindsay B. Avery, Ph.D.; Ned Sacktor, M.D.; and Justin McArthur, M.B.B.S., M.P.H. For more information: http://www.hopkinsmedicine.org/neurology_neurosurgery/research/jhu_nimh/researchers

September 25, 2012

Suicide Now Kills More Americans Than Car Crashes: Study

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Suicide Now Kills More Americans Than Car Crashes: Prevention efforts lowered traffic fatalities, more attention needed for suicide, experts say ***************************************************** Suicide Prevention CE Course (7 hours) Description $ - For course pricing details, see our Pricing page by clicking on the "Pricing" tab This course is designed to help you: Increase awareness of suicide prevention methods Increase familiarity with broad based support systems Become familiar with strategies to reduce stigma Learn how to promote efforts to reduce efforts to lethal means of self harm. Identify at risk behavior Implement appropriate treatment and resources Develop and Promote Effective Clinical and Professional Practices CEU LPC, ceus mft, ceu’s for social workers, BBS approved, NBCC provider, nursing ceus, online ceus, ceus for MFTs, ce courses for counselors, Social Worker ceus, continuing education units for LPCs, MHC ceus, LCSW, ASW and MFT Intern ceus, Board approved ceus in many states, national board approval ceus, alcohol and drug abuse counselor ceus. See chart below for your state and license.

September 24, 2012

Feeling Guilty Versus Feeling Angry – Who Can Tell the Difference?

When you rear-end the car in front of you at a stoplight, you may feel a mix of different emotions such as anger, anxiety, and guilt. The person whose car you rear-ended may feel angered and frustrated by your carelessness, but it’s unlikely that he’ll feel much guilt. The ability to identify and distinguish between negative emotions helps us address the problem that led to those emotions in the first place. But while some people can tell the difference between feeling angry and guilty, others may not be able to separate the two. Distinguishing between anger and frustration is even harder. In a study forthcoming in Psychological Science, a journal of the Association for Psychological Science, psychological scientist Emre Demiralp of the University of Michigan and his colleagues hypothesized that clinically depressed people would be less able to discriminate between different types of negative emotions compared to healthy individuals. Clinically depressed people often experience feelings of sadness, anger, fear, or frustration that interfere with everyday life. “It is difficult to improve your life without knowing whether you are sad or angry about some aspect of it,” says Demiralp. “For example, imagine not having a gauge independently indicating the gasoline level of your car. It would be challenging to know when to stop for gas. We wanted to investigate whether people with clinical depression had emotional gauges that were informative and whether they experienced emotions with the same level of specificity and differentiation as healthy people.” The researchers recruited 106 people between the ages of 18 and 40 to participate in their study. Half of the participants were diagnosed with clinical depression and half were not. Over the course of seven to eight days, they carried a Palm Pilot, which prompted them to record emotions at 56 random times during the day. To report their emotions, they marked the degree to which they felt seven negative emotions (sad, anxious, angry, frustrated, ashamed, disgusted, and guilty) and four positive emotions (happy, excited, alert, and active) on a scale from one to four. Demiralp and his colleagues looked at participants’ tendency to give multiple emotions (e.g., disgusted and frustrated) similar rankings at a given point in time. According to their methodology, the more two emotions were reported together the less the person differentiated between these emotions. The researchers found that clinically depressed people had less differentiated negative emotions than those who were healthy, supporting their hypothesis. Notably, they did not find the same difference between groups for positive emotions—people with and without diagnosed clinical depression were equally able to differentiate between positive emotions. It is possible that people who are clinically depressed differentiate more between positive emotions as a coping mechanism. Demiralp and his colleagues argue that the procedure used in the study to record emotions may be particularly useful in studying the emotional experience of clinically depressed people, paving the way for more treatment and therapy options in the future. “Our results suggest that being specific about your negative emotions might be good for you”, says Demiralp. “It might be best to avoid thinking that you are feeling generally bad or unpleasant. Be specific. Is it anger, shame, guilt or some other emotion? This can help you circumvent it and improve your life. It is one of our overarching goals to investigate approaches for facilitating this kind of emotional intelligence at a large scale in the population.” *** This research was supported by NIMH grants MH60655 to John Jonides, MH59259 to Ian H. Gotlib, and F32 MH091831 to Renee J. Thompson, SNF Fellowship PA001/117473 to Susanne Jaeggi, and fellowships SFRH/BPD/35953/2007 from Fundação para a Ciência e a Tecnologia and Wi3496/41 from the Deutsche Forschungsgemeinschaft awarded to Jutta Mata. Jutta Mata is now at the University of Basel, Switzerland LPCC Continuing Education ### For more information about this study, please contact: Emre Demiralp at emredemi@umich.edu. The APS journal Psychological Science is the highest ranked empirical journal in psychology. For a copy of the article "Feeling Blue or Turquoise? Emotional Differentiation in Major Depressive Disorder" and access to other Psychological Science research findings, please contact Anna Mikulak at 202-293-9300 or amikulak@psychologicalscience.org.

September 23, 2012

New national strategy paves way for reducing suicide deaths

Today on World Suicide Prevention Day, the National Action Alliance for Suicide Prevention (Action Alliance) released an ambitious national strategy to reduce the number of deaths by suicide. The strategy was called for by Health and Human Services (HHS) Secretary Kathleen Sebelius and former Department of Defense Secretary Robert Gates when they launched the Action Alliance on Sept. 10, 2010. The 2012 National Strategy for Suicide Prevention, a report from the U.S. Surgeon General and the Action Alliance, details 13 goals and 60 objectives for reducing suicides over the next 10 years. The Action Alliance, co-chaired by Gordon Smith, chief executive of the National Association of Broadcasters, and Army Secretary John McHugh, highlights four immediate priorities to reduce the number of suicides: integrating suicide prevention into health care policies; encouraging the transformation of health care systems to prevent suicide; changing the way the public talks about suicide and suicide prevention; and improving the quality of data on suicidal behaviors to develop increasingly effective prevention efforts. The Obama Administration also announced a series of activities that will help prevent suicide: •Secretary Sebelius announced $55.6 million in new grants for national, state, tribal, campus and community suicide prevention programs made possible under the Garrett Lee Smith Memorial Act and partially funded by the Prevention and Public Health Fund under the Affordable Care Act, the health care law enacted in 2010. •The Department of Veterans Affairs (VA) launched, Stand by Them: Help a Veteran, a joint VA-Department of Defense (DoD) outreach campaign that includes a new public service announcement, Side by Side, designed to help prevent suicide among veterans and servicemembers and focuses on the important role family and community play in supporting Veterans in crisis. Throughout September and beyond, VA and DoD are urging community-based organizations, Veterans Service Organizations, health care providers, private companies and other government agencies to connect Veterans and Service members in need of assistance to the Veterans Crisis Line ( 1-800-273-8255 , press 1). Additionally, as directed by President Obama’s Mental Health Executive Order issued August 31st, VA is also increasing the workforce of the Crisis Line by 50% and hiring 1,600 new mental health professionals. “Our message today is one of hope,” Secretary Sebelius said. “The national strategy will bring together the nation’s resources, both public and private, in an organized effort to provide life saving services and improve the ability of individuals, friends and family members to recognize the warning signs of despair and take action to save lives.” “By implementing this plan, we will engage diverse sectors of our communities, from health care systems and policy-makers to the media and public,” said Gordon Smith, a former U.S. senator from Oregon. “It will take all of our efforts to win this fight against suicide that touches so many American lives.” VA Deputy Secretary W. Scott Gould said, “All of us working together - friends, family, neighbors, the public and the private sector - can make a difference for Service members and Veterans transitioning back into their communities. Recognizing the warning signs of suicide and knowing where to turn for help will save lives.” Army Secretary McHugh commented on the impact of suicide on the military community in particular. “Suicide is one of the most challenging issues we face,” he said. “In the Army, suicide prevention requires soldiers to look out for fellow soldiers. We must foster an environment that encourages people in need to seek help and be supported.” Suicide is a public health issue that results in an average of 100 American deaths each day, more than double the average number of homicides. According to the Substance Abuse and Mental Health Services Administration (SAMHSA), more that 8 million adults in the United States had serious thoughts of suicide within the past 12 months. The first National Strategy for Suicide Prevention was launched in 2001 by then-Surgeon General David Satcher. The progress achieved over the years, the significant advances in knowledge, research and practice of preventing suicide, and public comment informed the development of the new Strategy by the Action Alliance. Since the development of the first strategy, more than 100 best practices in suicide prevention are now documented and form the foundation of the new strategy. “The latest research shows that suicide is preventable, suicidal behaviors are treatable, and the support of families, friends, and colleagues are critical protective factors. Suicide prevention needs to be addressed in the comprehensive, coordinated way outlined in the national strategy,” said Surgeon General Regina M. Benjamin. Dr. Benjamin also released a new public service announcement promoting the national suicide prevention line –1-800-273-TALK(8255). The Action Alliance is composed of approximately 200 public- and private- sector organizations united by a common vision of a nation free from the tragic experience of suicide. One of the private sector partners, Facebook is supporting the strategy by harnessing the power of social networking and crisis support to help prevent suicides across the nation. "All too often, people in crisis do not know how—or who—to ask for help,” said Facebook’s Global VP for Public Policy, Marne Levine. “At Facebook, we have a unique opportunity to provide the right resources to our users in distress, when and where they need them most. By enabling connection to trained and caring professionals around the world, we can do our part to let users know help is available. Through a concerted and coordinated effort on the part of private industry, government, and concerned family and friends, we can make a real difference in preventing suicide and saving lives." A new service offered by Facebook enables users to report a suicidal comment they see posted by a friend to Facebook using either the Report Suicidal Content link or the report links found throughout the site. The person who posted the suicidal comment will then immediately receive an email from Facebook encouraging him or her to call the National Suicide Prevention Lifeline at 1-800-273-TALK (8255) or to click on a link to begin a confidential chat session with a crisis worker. Additionally, •If you are concerned about yourself or someone you care about, call the National Suicide Prevention Lifeline 24/7 for free, confidential help ( 1-800-273-8255 ). •To view or order printed copies of the National Strategy for Suicide Prevention and other materials, visit www.samhsa.gov/NSSP. •To learn more about suicide prevention, visit www.sprc.org. •To view the U.S. Surgeon General’s new “Everyone Plays A Role” PSA, visit http://www.surgeongeneral.gov/ •To view the Department of Veterans Affairs new “Side by Side” PSA, visit http://www.veteranscrisisline.net/materials/spmsupport/files/side-by-side-SD-eng-60-cc.wmv -------------------------------------------------------------------------------- SAMHSA is a public health agency within the Department of Health and Human Services. Its mission is to reduce the impact of substance abuse and mental illness on America’s communities.

September 19, 2012

Genetic Switch Involved in Depression

The activity of a single gene sets in motion some of the brain changes seen in depression, according to a new study. The finding suggests a promising target for potential therapies. People with major depressive disorder, or major depression, have feelings of sadness, loss, anger or frustration that interfere with daily life for weeks or longer. The symptoms of depression also include memory loss and trouble thinking. Past studies have found that people with major depression have brains that are physically different from those of non-depressed people. The depressed brain has a smaller prefrontal cortex, a region at the front of the brain that handles emotion and complicated thought. The area also has fewer and smaller neurons (nerve cells) in the depressed brain. To gain insight into the neural mechanisms at work, a group led by Dr. Ronald Duman of Yale University began with data collected in a previous study. They had done a comparison of postmortem brains from 15 depressed people and 15 non-depressed people who were matched in age, ethnicity and gender. Using DNA microarray chips to analyze the activity of 20,000 genes, the researchers had found numerous genes that were expressed (turned on and off) differently in the brains of depressed people. For the new study, the team focused specifically on genes related to synapses, the place where signals pass from one neuron to another. The work was funded in part by NIH’s National Institute of Mental Health (NIMH) and National Center for Research Resources (NCRR). The findings were published in the September 2012 issue of Nature Medicine. Analysis revealed that about 30% of the genes with significantly lower expression in the depressed brains related to some aspect of synapse function. Further experiments found significantly reduced expression for 5 particular genes in the prefrontal cortex of depressed people. The scientists searched for transcription factors—proteins that bind to the DNA of other genes to turn them on or off—that were capable of regulating the 5 genes. They found one called GATA1 that is expressed significantly more in the brains of people with major depressive disorder. Expression of the Gata1 gene in the prefrontal cortex was also higher in a rat model of depression. Raising expression of Gata1 in cultured rat neurons decreased the expression of synapse-related genes. It also decreased the number of connections between neurons, supporting the idea that higher Gata1 expression can lead to the changes seen in depressed brains. The researchers next tested the gene in rats and found that putting extra copies of Gata1 into their brains made them behave as if they were depressed MHC Ceus “We show that circuits normally involved in emotion, as well as cognition, are disrupted when this single transcription factor is activated,” Duman explains. These findings may point toward a new target for treatment. “We hope that by enhancing synaptic connections, either with novel medications or behavioral interventions, we can develop more effective antidepressant therapies,” says Duman. — by Helen Fields Related Links: Depression: http://www.nimh.nih.gov/health/topics/depression/index.shtml More Young Neurons Equals Better Brain Function: http://www.nih.gov/researchmatters/april2011/ 04112011brainfunction.htm Brain Basics: Know Your Brain: http://www.ninds.nih.gov/disorders/brain_basics/know_your_brain.htm Reference: Nat Med. 2012 Aug 12. [Epub ahead of print] PMID: 22885997.
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This work is licensed under a Creative Commons Attribution 3.0 Unported License.