Science News for January 27, 2002

Scans link 2 key pieces of schizophrenia puzzle

Researchers have linked two key brain abnormalities in schizophrenia, including reduced frontal lobe activation and abnormal dopamine release, suggesting a common pathophysiological mechanism. The study suggests that antipsychotic drugs may target the wrong area, leading to an excess of dopamine activity.

SourceNIH/National Institute of Mental Health·JournalNature Neuroscience·DateJan 27, 2002

Brain-injured children from stressed or disadvantaged families are more vulnerable to ongoing problems

A new study found that brain-injured children from less stressed and more supportive families had significantly higher achievement and behavior scores than their peers. The authors speculate that severe traumatic brain injury exacerbates the effects of unfavorable family circumstances, leading to worse academic and behavioral outcomes.

SourceAmerican Psychological Association·JournalNeuropsychology·DateJan 27, 2002