The role of low cognitive effort and negative symptoms in neuropsychological impairment in schizophrenia.

ABSTRACT:

Objective

Two experiments were conducted to examine whether insufficient effort, negative symptoms (e.g., avolition, anhedonia), and psychological variables (e.g., anhedonia and perception of low cognitive resources) predict generalized neurocognitive impairment in individuals with schizophrenia (SZ).

Method

In Experiment 1, participants included 97 individuals with SZ and 63 healthy controls (CN) who completed the Victoria Symptom Validity Test (VSVT), the MATRICS Consensus Cognitive Battery (MCCB), and self-report anhedonia questionnaires. In Experiment 2, participants included 46 individuals with SZ and 33 CN who completed Green's Word Memory Test (WMT), the MCCB, and self-reports of anhedonia, defeatist performance beliefs, and negative expectancy appraisals.

Results<

SUBMITTER: Strauss GP 

PROVIDER: S-EPMC4286525 | biostudies-literature | 2015 Mar

REPOSITORIES: biostudies-literature