DYSTONIA By N., Sam M.S. - 13 An abnormal and involuntary tension or contraction of the muscles resulting in a distorted posture. See extrapyramidal effects. DYSTONIA: "Joe had dystonia eveidenced by his arched back." Related Psychology Terms Developing a Case Study FREUD, SIGMUND (1856-1939) OBSESSRVE-COMPULSIVE REACTION Hitler and Conformity ADOLESCENCE (Theories) ANTISOCIAL REACTION SULLIVAN, HARRY STACK (1892- 1949) SCHIZOID PERSONALITY (Schizo- thymic Personality) CLIENT-CENTERED THERAPY CLINICAL PSYCHOLOGY Cite this page: N., Sam M.S., "DYSTONIA," in PsychologyDictionary.org, April 7, 2013, https://psychologydictionary.org/dystonia/ (accessed October 4, 2022).