Patients with schizophrenia demonstrate dissociation between affective experience and motivated behavior

Area of Science:

• Psychiatry
• Neuroscience
• Cognitive Psychology

Background:

• Anhedonia is a core symptom of schizophrenia, often attributed to reduced emotional experience.
• However, recent research suggests a decoupling of affect from motivated behavior may be more accurate.

Purpose of the Study:

• To investigate the relationship between self-reported emotional experience, behavior, and internal representations in schizophrenia.
• To determine if motivational deficits in schizophrenia are linked to difficulties in translating experience into action.

Main Methods:

• Two behavioral conditions were used to assess participants' ability to control stimulus exposure based on internal representations.
• Participants with schizophrenia and healthy controls provided self-reports of affective experience and behavioral responses.

Main Results:

• Schizophrenia patients showed a weaker correspondence between their behavior and self-reported affective ratings compared to controls.
• This disconnect was more pronounced when patients relied on internal rather than evoked stimulus representations.

Conclusions:

• Self-reported emotional experience is comparable between schizophrenia patients and healthy individuals.
• Motivational deficits in schizophrenia appear to arise from impaired ability to translate subjective experiences into goal-directed actions.