Brain

DSM-5: Hoarding, binge-eating and hypersexuality

Adding Asperger’s syndrome to the autism spectrum, eliminating the terms “substance abuse” and “dependence” in favor of “addiction and related disorders,” introducing the condition “hypersexual disorder” and introducing an assessment of mental illness based on severity are among the proposed changes for the new edition of the Diagnostic

Study: Patients in vegetative state show awareness

Using a newly developed brain scan technique, researchers in the U.K. and Belgium revealed that some patients in vegetative states or states of minimal consciousness show signs of awareness, and in one exceptional case, could even answer yes/no questions posed by doctors during a visualization exercise. The findings, published online

A possible explanation for SIDS?

Abnormal serotonin receptors, which may cause serotonin levels to dip dangerously and undermine a brain network responsible for regulating the body’s autonomic functions, could be a cause of Sudden Infant Death Syndrome (SIDS), according to new research published in the Journal of the American Medical Association. An estimated two out of

Fish oil may help prevent onset of psychosis

For patients at very high risk for developing a psychiatric disorder such as schizophrenia, taking fish oil supplements may be a way to prevent the onset of psychosis, according to a new study published in the Archives of General Psychiatry. Due to the controversial nature of using anti-psychotic drugs as a preventive treatment for

On the slopes, helmets cut head injury risk by a third

Wearing a helmet when you take to the slopes is commonly considered a good idea, but just how much of a difference does it really make? A big one. According to an analysis published in the Canadian Medical Association Journal, for skiers and snowboarders, wearing a helmet reduces the risk of head injury by more than a third. And while,

Hearing voices in childhood may be common

Many children and adolescents may hear voices that aren’t really there, but most don’t suffer any long-term effects of the imaginary chatter, according to a new study published in the British Journal of Psychiatry. As Reuters reports, a study of 3,870 Dutch preschoolers found that nearly one in ten reported hearing voices “that only you

Growing evidence for an Alzheimer’s smell test?

Loss of smell is often an early symptom of Alzheimer’s disease, and, according to new research published in the Journal of Neuroscience, could possibly serve as a warning sign at the onset of the disease. Previous research has explored the relationship between loss of smell—or olfactory dysfunction—and the accumulation of a protein

Antidepressants may alter personality

Clarification added January 6, 2010.

A wealth of research has shown that selective serotonin reuptake inhibitors (SSRI) are effective at reducing the symptoms of depression—though new research suggests that study populations limited to those with severe depression may skew these findings, and that antidepressants only show truly

After brain surgery, bedside exam as critical as CT scan

For brain surgery patients, a doctor’s bedside exam is still superior to a routine CT scan for identifying potential post-surgical complications, according to a study published in the Journal of Neurosurgery. Researchers from the Department of Neurological Surgery at Loyola University in Chicago examined the records of 251 patients who

PTSD in children linked with poor memory function

In children, post-traumatic stress disorder (PTSD) may inhibit the function of a brain region associated with memory, according to a new study published online today in the Journal of Pediatric Psychiatry. In an effort to better understand how trauma may impact brain function in children, researchers at Stanford University School of

The Roots of Individuality

Why do different people’s minds work so differently? Human brain cells don’t follow a set DNA script. Instead, they contain a surprising number of mobile elements — or “jumping genes” — that let them reorganize their genetic code.

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