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Tag: "psychologist" at biology news

Man's best friend lends insight into human evolution

...s take for granted. But, according to evolutionary psychologist Brian Hare at the Max Planck Institute in Germany, this ability is present in other species as well. As Hare discusses in the April issue of Current Directions in Psychological Science, chimpanzees utilize social cues like eye gaze and face orientat...

Canadian study shows bilingualism has protective effect in delaying onset of dementia by four years

...k, Ph.D., whose research team at Baycrest included psychologist Dr. Fergus Craik, a world authority on age-related changes in memory processes, and neurologist Dr. Morris Freedman, an eminent authority on understanding the mechanisms underlying cognitive impairment due to diseases such as Alzheimer's. "Our stu...

1/3 of sexually active older adults with HIV/AIDs has unprotected sex

...ho led the study along with Ohio University health psychologist Timothy Heckman. “What we don’t know yet is whether these individuals are in a monogamous relationship with someone else who is HIV positive and believe there is no risk of infection.? The study also found that sexual activity was more prevalent am...

Successful lung cancer surgery not enough to break nicotine dependence in many smokers

...y’s lead author, Mark S. Walker, Ph.D., a clinical psychologist and Assistant Professor of Medicine at Washington University. "Their choices are driven by insidious cravings for nicotine." The investigators found that those smokers who were the last to give up their cigarettes - some on the same day as their o...

New dyslexia theory blames 'noise'

...w at the National Institute of Mental Health), USC psychologist Franklin Manis and University of Wisconsin, Madison psychologist Mark Seidenberg. The most recent study is due to be published later this month in Psychological S...

Altered perception of reward in human cocaine addiction

... and controlling behavior," said Rita Goldstein, a psychologist at Brookhaven Lab. "These results also attest to the benefit of using sophisticated brain-imaging tools combined with sensitive behavioral, cognitive, and emotional probes to optimize the study of drug addiction, a psychopathology that these tools ha...

A reason why video games are hard to give up

... of playing," says Richard M. Ryan, a motivational psychologist at the University and lead investigator in the four new studies about gaming. Players reported feeling best when the games produced positive experiences and challenges that connected to what they know in the real world. The research found that g...

New HIV study identifies high-risk subgroups of adolescents

...avior,?says lead author, Christopher Houck, PhD, a psychologist with the Bradley Hasbro Children’s Research Center. The study appears in the July 2006 issue of the Journal of Pediatric Psychology. Researchers identified three patterns of risk behavior among 1,153 high-risk boys and three patterns among high-ris...

Animal brains 'hard-wired' to recognize predator's foot movements, Queen's study suggests

...proaching predator's feet, says Queen's University psychologist Niko Troje. "We believe this visual filter is used to signal the presence of animals that are propelled by the motion of their feet and the force of gravity," suggests Dr. Troje, Canada Research Chair in Vision and Behavioural Sciences. Conducte...

Born with a love of speech

...que propensity for speech. Now a McGill University psychologist believes she's separated out the complicating effects of the uterine sound barrier. And the results, says Dr. Athena Vouloumanos, point to a genetic predilection for listening in on speech above other similar sounds. "It's well established that neo...

Great (taste) expectations: Study shows brain anticipates taste, shifts gears

...s. For Nitschke, who also practices as a clinical psychologist specializing in the treatment of depression and anxiety disorders, the new detailed insights into the power of anticipation could lead to better treatments for such conditions. "The placebo operates through expectancy. In this study, we've taken the...

'Uniquely human' component of language found in gregarious birds

...d do that in starlings." Nusbaum, Margoliash and psychologist Kimberly Fenn had previously collaborated on studies of the role of sleep in speech perceptual learning. Gentner, a neuropsychologist, expert on starlings and, at the time, a postdoctoral fellow at the University of Chicago, was an essential additio...

Ultrasounds show mothers' drinking shrinks fetal brain

...ncy Handmaker, a University of New Mexico clinical psychologist with expertise in maternal-fetal health. Alcohol use during pregnancy is a leading preventable cause of birth defects and developmental disabilities in the United States, according to the Centers for Disease Control and Prevention. Fetal Alcohol Sp...

Viagra's hidden help for wildlife

...The study's lead authors are Dr Bill von Hippel, a psychologist from the University of New South Wales (Sydney, Australia), and his brother, Dr Frank von Hippel, a biologist from the University of Alaska, Anchorage. The von Hippels cite three key findings from the research. "First, significantly more men had for...

Complex gene interactions account for autism risk

...bout the complexity of the disease," said clinical psychologist Michael Cuccaro, Ph.D., a study co-author also of the Duke Center for Human Genetics. Furthermore, he added, existing medications already target the GABA system, including diazepam (Valium®) and some anti-epileptic drugs. "As we begin to understand ...

Women feel more pain than men, research shows

...ut that is no longer the case," said Dr Ed Keogh a psychologist from the Pain Management Unit at the University of Bath*. "Research is telling us that women experience a greater number of pain episodes across their lifespan than men, in more bodily areas and with greater frequency. "Unfortunately all too often ...

Brain Scan Study of Smokers Reveals Signature of Craving

...e same way," said Joe McClernon, Ph.D., a clinical psychologist at the Duke Center for Nicotine and Smoking Cessation Research and lead author of the study. "Furthermore, how they respond depends on the degree to which deprivation leads them to crave cigarettes. "Smokers' responses to drug cues are important in ...

Love's all in the brain: fMRI study shows strong, lateralized reward, not sex, drive

...y a neuroscientist, an anthropologist and a social psychologist found love-related neurophysiological systems inside a magnetic resonance imaging machine. They detected quantifiable love responses in the brains of 17 young men and women who each described themselves as being newly and madly in love. The multidis...

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