Intrinsic motivation and amotivation in first episode and prolonged psychosis

Lauren Luther, Paul H. Lysaker, Ruth L. Firmin, Alan Breier, Jenifer L. Vohs

Research output: Contribution to journalArticle

11 Scopus citations

Abstract

The deleterious functional implications of motivation deficits in psychosis have generated interest in examining dimensions of the construct. However, there remains a paucity of data regarding whether dimensions of motivation differ over the course of psychosis. Therefore, this study examined two motivation dimensions, trait-like intrinsic motivation, and the negative symptom of amotivation, and tested the impact of illness phase on the 1) levels of these dimensions and 2) relationship between these dimensions. Participants with first episode psychosis (FEP; n = 40) and prolonged psychosis (n = 66) completed clinician-rated measures of intrinsic motivation and amotivation. Analyses revealed that when controlling for group differences in gender and education, the FEP group had significantly more intrinsic motivation and lower amotivation than the prolonged psychosis group. Moreover, intrinsic motivation was negatively correlated with amotivation in both FEP and prolonged psychosis, but the magnitude of the relationship did not statistically differ between groups. These findings suggest that motivation deficits are more severe later in the course of psychosis and that low intrinsic motivation may be partially independent of amotivation in both first episode and prolonged psychosis. Clinically, these results highlight the importance of targeting motivation in early intervention services.

Original languageEnglish (US)
Pages (from-to)418-422
Number of pages5
JournalSchizophrenia Research
Volume169
Issue number1-3
DOIs
StatePublished - Dec 1 2015

Keywords

  • Early psychosis
  • Motivation
  • Negative symptoms
  • Schizophrenia

ASJC Scopus subject areas

  • Psychiatry and Mental health
  • Biological Psychiatry

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