Psychologically disordered behavior refers to patterns of thoughts, feelings, or actions that are atypical or harmful to oneself or others. It includes various mental illnesses such as anxiety disorders, mood disorders, schizophrenia, etc.
Related terms
DSM-5 (Diagnostic and Statistical Manual of Mental Disorders): A widely used manual for diagnosing mental disorders based on specific criteria.
Abnormal psychology: The branch of psychology that studies abnormal behavior patterns associated with various mental disorders.