RISK aversion in Italian forensic and non-forensic patients with schizophrenia spectrum disorders

Area of Science:

• Neuroscience
• Psychiatry
• Behavioral Economics

Background:

• Goal-directed decision-making is crucial for reward and motivation, integrating feedback to maximize gains and minimize losses.
• Altered decision-making, ignoring negative consequences, may contribute to antisocial behavior.

Purpose of the Study:

• Investigate differences in loss and risk aversion in schizophrenia spectrum disorder (SSD) patients with and without a history of violence, compared to controls.
• Examine how decision-making variables relate to group membership (forensic SSD, non-forensic SSD, healthy controls).

Main Methods:

• Compared decision-making variables (risk aversion, loss aversion, choice consistency) across three groups: forensic SSD patients, non-forensic SSD patients, and healthy controls.
• Utilized a matched sample design to control for relevant patient characteristics.

Main Results:

• Risk aversion was the sole significant predictor differentiating the groups.
• Non-forensic SSD patients exhibited greater risk aversion than healthy controls.
• No significant differences were found in loss aversion or choice consistency among the groups.

Conclusions:

• Findings suggest risk aversion is a key cognitive characteristic distinguishing SSD patient groups and controls.
• This highlights a potential therapeutic target for functional rehabilitation in SSD by focusing on reward processing mechanisms.