Impaired preferences for praise in schizophrenic adolescents

Area of Science:

• Psychiatry
• Clinical Psychology
• Neuroscience

Background:

• Reduced preference for social rewards is a key explanation for schizophrenia.
• Previous studies used performance measures, confounding preference with learning.
• Lack of nonsocial reward controls limited understanding of reward specificity.

Purpose of the Study:

• To directly measure social and nonsocial reward preferences in adolescents with schizophrenia.
• To investigate if impaired responsiveness to rewards in schizophrenia is specific to social cues.
• To test theories linking social anhedonia to schizophrenia symptoms.

Main Methods:

• Directly assessed reward preferences in paranoid and nonparanoid schizophrenic adolescents and controls (N=60).
• Utilized both social (praise) and nonsocial (tangible) rewards.
• Compared preference patterns across patient groups and control participants.

Main Results:

• Schizophrenic adolescents demonstrated significantly impaired preferences for praise (social reward).
• Preferences for tangible rewards (nonsocial) were unimpaired in schizophrenic adolescents.
• Results consistently supported theories emphasizing reduced social reward preference.

Conclusions:

• Apathy toward social rewards is a significant factor contributing to social withdrawal in schizophrenia.
• Impaired preference for social reinforcement may underlie poor social skills and uncommunicative behavior.
• Findings highlight the specificity of social anhedonia in schizophrenia.