Visual memory uniquely predicts anhedonia in schizophrenia but not bipolar disorder

Anjuli S. Bodapati, Lisanne M. Jenkins, Rajiv P. Sharma, Cherise Rosen*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

Objective: Deficits in memory have been suggested as an influential mechanism of anhedonia, because while pleasant experiences may be enjoyed in-the-moment, the cognitive processes involved in reporting anticipated or remembered enjoyable experiences is thought to be impaired. This study will determine whether any aspects of memory, including visual memory, verbal memory or working memory, are significantly predictive of anhedonia in a sample of schizophrenia, psychotic bipolar disorder and healthy controls. Methods: The study included 38 individuals with schizophrenia, 19 individuals with bipolar disorder with psychosis, and 43 age-matched healthy controls. All participants completed a self-report social and physical anhedonia questionnaire along with a cognitive screening battery, which assessed the domains of attention/vigilance, working memory, verbal learning, visual learning, and reasoning and problem-solving. Results: Anhedonia scores were regressed onto domain scores to determine which areas of cognition uniquely predicted level of anhedonia in each group. For the schizophrenia group, physical anhedonia was significantly predicted by worse visual memory performance. The regression models did not find significant cognitive predictors of physical or social anhedonia in the bipolar disorder or control groups. Conclusions: This study found a significant relationship between visual memory and physical anhedonia in schizophrenia patients that was not present in a sample of psychotic bipolar patients or healthy controls, adding to an accumulating body of evidence that visual memory is related to anhedonia in schizophrenia. This relationship may be explained by underlying abnormalities in the orbitofrontal cortex in schizophrenia.

Original languageEnglish (US)
Pages (from-to)136-146
Number of pages11
JournalJournal of Neuropsychology
Volume13
Issue number1
DOIs
StatePublished - Mar 2019

Keywords

  • Cognition
  • MATRICS Consensus Cognitive Battery
  • Memory
  • Negative Symptoms

ASJC Scopus subject areas

  • Neuropsychology and Physiological Psychology
  • Cognitive Neuroscience
  • Behavioral Neuroscience

Fingerprint Dive into the research topics of 'Visual memory uniquely predicts anhedonia in schizophrenia but not bipolar disorder'. Together they form a unique fingerprint.

Cite this