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Calculating the value of effortful behavior: A clue to schizophrenia-related disability?
Date:7/10/2013

al awards using a different equation than healthy volunteers or other people with schizophrenia who do not have severe motivational problems. The cost of effort is more salient than the potential increase in reward value," explained Gold.

These findings suggest that negative symptoms are associated with abnormalities in how patients weigh the cost of the effort needed to receive a reward or reach a goal. Importantly, these abnormalities were seen consistently only in those patients with high levels of negative symptoms. It seems that these patients were particularly averse to the higher effort required for larger rewards and/or that they did not find the higher reward worth the extra effort required.

Dr. John Krystal, Editor of Biological Psychiatry, commented, "It is important to understand the disadvantageous choices that patients make because it may be possible, through education, rehabilitation, and perhaps medication to help patients make better progress in their rehabilitation."


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Contact: Rhiannon Bugno
Biol.Psych@utsouthwestern.edu
214-648-0880
Elsevier
Source:Eurekalert

Page: 1 2

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