Case O – International Judicial Review Unit O

Medical and Psychological Basis for the Explainability of Changes in Personality and Behavior

(Non-diagnostic scientific explanation)

Statement: The following content does not constitute a medical or psychiatric diagnosis of any individual. It is provided solely to explain, from a medical and psychological perspective, the scientific explainability and associated risks of changes in behavioral patterns, judgment capacity, and personality expression under conditions of long-term, systematic external manipulation, high pressure, and traumatic exposure.

I. Core Medical and Relevant Disciplinary Foundations

1️⃣ Neuroscience / Neuropsychiatry

Prolonged external stress, trauma, and manipulation may alter functional connectivity between the prefrontal cortex and the limbic system, thereby affecting impulse control, risk assessment, judgment, and emotional regulation.

2️⃣ Clinical Psychology / Trauma Psychology (PTSD / Complex Trauma)

Sustained coercion, humiliation, and social suppression may reshape coping mechanisms and personality expression, including the development of defensive behaviors, changes in attachment patterns, and avoidance responses.

3️⃣ Addiction Medicine / Behavioral Addiction Science

Addiction-related stimuli may remodel reward pathways (dopaminergic systems), weaken self-control and risk evaluation, and increase susceptibility to guidance toward high-risk or unlawful behaviors.

4️⃣ Social Psychiatry / Social Psychology

Group-based persecution, stigmatization, and credit or reputation destruction may induce compliance behaviors, learned helplessness, and restructuring of identity.

5️⃣ Forensic Psychiatry

This discipline is applied to assess the impact of external manipulation, coercion, or systemic pressure on behavioral capacity, responsibility capacity, and legal imputability.

II. Mechanistic Conclusions (Medical and Psychological Level)

• Personality is not fixed; its expression is closely related to neuroplasticity, and prolonged environmental input may alter behavior and personality expression;

• The combined effects of credit destruction, emotional manipulation, economic deprivation, and group pressure constitute a high-risk psychological environment;

• Under addictive states, decision-making bias increases significantly, while judgment and self-control capacities decline;

• Long-term exposure to “modeling–reinforcement–punishment” behavioral chains may shape behavioral patterns and value judgment.

III. Concluding Statement (For Medical and Forensic Reference)

• Under sustained and systematic external manipulation and high-pressure environments, changes in individual behavioral patterns and personality expression have clear medical and psychological explainability;

• Such changes are consistent with current scientific understanding of neuroplasticity, trauma responses, and addiction mechanisms;

• These changes are not solely attributable to “innate personality,” but demonstrate a significant association with external environmental factors.

EN