... and memory lapses.
Twelve people with schizophrenia and seven adults with no psychiatric ailments underwent positron emission tomography (PET) scanning as they learned and recalled lists of 1 to 12 words. PET scans yield measures of blood-flow changes in the brain, an indirect sign of mental activity.
In schizophrenia, frontal brain activity and memory performance dropped as tasks became more demanding, consistent with a lack of mental effort, Fletcher's group reports in the November Archives Of General Psychiatry. In contrast, the researchers found, frontal activity rose in the mentally healthy adults as they successfully recalled more information on progressively more challenging tasks.
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|Title Annotation:||research indicates that memory lapses in schizophrenia may be due to apathy in the patients|
|Article Type:||Brief Article|
|Date:||Dec 5, 1998|
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