Anhedonia in prolonged schizophrenia spectrum patients with relatively lower vs. higher levels of depression disorders: Associations with deficits in social cognition and metacognition

•Anhedonia is commonly found in schizophrenia spectrum disorders.•Anhedonia is not consistently correlated with symptoms of schizophrenia.•A cluster analysis found groups with anhedonia with higher and lower depression.•Anhedonia patient with schizophrenia without depression had poorer metacognition...

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Bibliographic Details
Published in:Consciousness and cognition 2014-10, Vol.29, p.68-75
Main Authors: Buck, Kelly D., McLeod, Hamish J., Gumley, Andrew, Dimaggio, Giancarlo, Buck, Benjamin E., Minor, Kyle S., James, Alison V., Lysaker, Paul H.
Format: Article
Language:English
Subjects:
Adult
Adult and adolescent clinical studies
Anhedonia
Anhedonia - physiology
Biological and medical sciences
Cognition & reasoning
Cognition Disorders - epidemiology
Cognition Disorders - physiopathology
Comorbidity
Depression
Depressive Disorder - epidemiology
Depressive Disorder - physiopathology
Female
Humans
Male
Medical sciences
Mental depression
Metacognition
Middle Aged
Mood disorders
Patients
Psychology. Psychoanalysis. Psychiatry
Psychopathology. Psychiatry
Psychoses
Schizophrenia
Schizophrenia - epidemiology
Schizophrenia - physiopathology
Social cognition
Social Perception
Social psychology
Spectrum analysis
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Summary:•Anhedonia is commonly found in schizophrenia spectrum disorders.•Anhedonia is not consistently correlated with symptoms of schizophrenia.•A cluster analysis found groups with anhedonia with higher and lower depression.•Anhedonia patient with schizophrenia without depression had poorer metacognition.•Poor metacognition may contribute to unique forms of anhedonia in schizophrenia. This study has sought to explore whether there are at least two subtypes of anhedonia in schizophrenia: one closely linked with depression and another that occurs in the absence of depression which is related to a general paucity of internal experience. Participants were 163 adults with schizophrenia who completed assessments of depression, anhedonia, executive functioning, positive and negative symptoms, social cognition and metacognition. A cluster analysis based on participants’ depression and anhedonia symptom scores produced three groups: High Depression/High Anhedonia (n=52), Low Depression/Low Anhedonia (n=52), and Low Depression/High Anhedonia (n=59). An ANCOVA and post hoc comparisons controlling for positive and negative symptoms found that the Low Depression/High Anhedonia group had poorer metacognition and social cognition than other groups. These findings point to the possibility of a subtype of anhedonia in schizophrenia, one occurring in the relative lesser levels of depression, and tied to deficits in the ability to think about oneself and others.
ISSN:1053-8100
1090-2376
DOI:10.1016/j.concog.2014.07.005