PMID: 3214687Nov 1, 1988Paper

Schizoid personality, inter-hemispheric transfer, and left hemisphere over-activation

The British Journal of Clinical Psychology
A Raine, D Manders

Abstract

This study assesses the external validity of schizoid personality against multiple measures of cerebral laterality designed to distinguish between left hemisphere (LH) over-activation, LH damage and inter-hemisphere transfer deficit interpretations of schizotypy. Questionnaire measures of schizoid personality were assessed in an undergraduate population and related to laterality measures of both verbal and nonverbal dichotic listening, haptic inter- and intra-manual matching, employment of left and right hemisphere strategies during the haptic task, lateral eye-movements, and left and right ear auditory thresholds. A high score on a composite index of schizoid personality was significantly related to greater asymmetry (right ear advantage) in verbal dichotic listening, the use of LH strategies, and lower right ear thresholds, an overall pattern of results indicating LH over-activation in schizoids. It is suggested that studies comparing schizophrenic patients with normal controls minimize the likelihood of obtaining group differences if they fail to take into account schizoid personality in the controls.

Citations

Feb 1, 1992·Psychiatry Research·M P Kelley, R D Coursey
Jan 31, 1995·Psychiatry Research·J GruzelierA Raine
Feb 1, 1994·International Journal of Psychophysiology : Official Journal of the International Organization of Psychophysiology·J Gruzelier, A Raine
Dec 2, 2000·Biological Psychology·C H KleinA Schweickhardt
Feb 28, 2008·Cognitive Neuropsychiatry·Evangelia LioutaChristine Mohr
Sep 15, 2012·Laterality·Pablo NajtMarkus Hausmann
Jun 22, 1999·Biological Psychiatry·C KleinB Andresen
Jul 8, 1999·The International Journal of Neuroscience·M P Kelley, P Bakan
Aug 10, 2011·Psychiatry Research·Robert A SchugLiejia Li
Jan 28, 2006·Consciousness and Cognition·Fred H Previc

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