PSYC 19 - Abnormal Psychology Degree Applicable, CSU, UC, IGETC, C_ID# PSY 120 Prerequisite: PSYC 1A or PSYC 1AH Psychological, biological, and sociocultural approaches to understanding abnormal behavior, including DSM-5 psychiatric disorders such as anxiety, depressive, and psychotic disorders. The exploration of psychological principles underlying psychopathology.