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Primary and secondary hypohedonia.

¹Department of Psychology, University of Minnesota, Elliott Hall, 75 East River Road, Minneapolis, Minnesota 55455-0344, USA.

Journal of Abnormal Psychology

|March 23, 2001

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A hypohedonic schizotypal taxon exists in college students, challenging Meehl's theory. This suggests hedonic capacity is linked to the schizogene, particularly in social domains.

Area of Science:

Psychology
Psychopathology
Behavioral Genetics

Background:

Meehl's 1962 theory proposed a normal-range variable of hedonic capacity potentiating schizotypy into schizophrenia.
Blanchard et al. (2000) identified a hypohedonic schizotypal taxon in a college population, challenging Meehl's revised theory.

Purpose of the Study:

To investigate the relationship between hedonic disposition and the schizogene.
To determine if the schizotypal anhedonic taxon comprises individuals with schizotaxic indicators.

Main Methods:

Taxometric analysis to identify schizotypal taxa.
Assessment of psychometrically measurable hedonic disposition.
Evaluation of psychophysiological, cognitive, and soft neurologic indicators.

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Main Results:

Evidence suggests a hypohedonic schizotypal taxon exists.
Hedonic disposition appears influenced by the schizogene, especially in social functioning.
Further research is needed to confirm the composition of the schizotypal anhedonic taxon.

Conclusions:

The existence of a hypohedonic schizotypal taxon challenges Meehl's revised theory of schizophrenia.
Hedonic capacity may be intrinsically linked to the schizogene, impacting social behavior.
Clarifying the etiological pathways requires examining schizotaxic indicators within the identified taxon.