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Handedness in first-episode psychotic patients and their first-degree biological relatives.
J Abnorm Psychol. 1994 May; 103(2):400-3.JA

Abstract

We evaluated the handedness of 58 schizophrenia patients and 54 of their relatives, 23 patients with major depression with psychosis and 24 of their relatives, 36 patients with bipolar psychosis and 33 of their relatives, and 119 nonpsychiatric subjects and 42 of their relatives. Computerized tomography measures were also available for a subset of the psychotic patients. The schizophrenia patients were significantly more left-handed than any of the other groups, and increased sinistrality was also associated with larger lateral ventricle to brain area ratios. The relatives of the schizophrenia patients did not significantly differ on handedness from either the relatives of the affective psychosis patients or the nonpsychiatric subjects. Our findings do not support the notion that left-handedness in schizophrenia is genetically influenced. More research with larger family member data sets is warranted to further explore this possibility.

Authors+Show Affiliations

Department of Psychology, University of California, San Diego, La Jolla 92093-0109.No affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, P.H.S.

Language

eng

PubMed ID

8040511

Citation

Clementz, B A., et al. "Handedness in First-episode Psychotic Patients and Their First-degree Biological Relatives." Journal of Abnormal Psychology, vol. 103, no. 2, 1994, pp. 400-3.
Clementz BA, Iacono WG, Beiser M. Handedness in first-episode psychotic patients and their first-degree biological relatives. J Abnorm Psychol. 1994;103(2):400-3.
Clementz, B. A., Iacono, W. G., & Beiser, M. (1994). Handedness in first-episode psychotic patients and their first-degree biological relatives. Journal of Abnormal Psychology, 103(2), 400-3.
Clementz BA, Iacono WG, Beiser M. Handedness in First-episode Psychotic Patients and Their First-degree Biological Relatives. J Abnorm Psychol. 1994;103(2):400-3. PubMed PMID: 8040511.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Handedness in first-episode psychotic patients and their first-degree biological relatives. AU - Clementz,B A, AU - Iacono,W G, AU - Beiser,M, PY - 1994/5/1/pubmed PY - 1994/5/1/medline PY - 1994/5/1/entrez SP - 400 EP - 3 JF - Journal of abnormal psychology JO - J Abnorm Psychol VL - 103 IS - 2 N2 - We evaluated the handedness of 58 schizophrenia patients and 54 of their relatives, 23 patients with major depression with psychosis and 24 of their relatives, 36 patients with bipolar psychosis and 33 of their relatives, and 119 nonpsychiatric subjects and 42 of their relatives. Computerized tomography measures were also available for a subset of the psychotic patients. The schizophrenia patients were significantly more left-handed than any of the other groups, and increased sinistrality was also associated with larger lateral ventricle to brain area ratios. The relatives of the schizophrenia patients did not significantly differ on handedness from either the relatives of the affective psychosis patients or the nonpsychiatric subjects. Our findings do not support the notion that left-handedness in schizophrenia is genetically influenced. More research with larger family member data sets is warranted to further explore this possibility. SN - 0021-843X UR - https://www.unboundmedicine.com/medline/citation/8040511/Handedness_in_first_episode_psychotic_patients_and_their_first_degree_biological_relatives_ L2 - http://content.apa.org/journals/abn/103/2/400 DB - PRIME DP - Unbound Medicine ER -