Lateral Preference and Right-Left Awareness in Schizophrenic Children

Walker, Harry A.; Birch, Herbert G.

doi:10.1097/00005053-197011000-00006

Cited by 36 publications

(7 citation statements)

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“…The postulated relationship of left-handedness to early-onset schizophrenia was not confirmed by this study, in contradiction to the findings cited earlier of excessive left-handedness in autistics (Boucher, 1977;Colby & Parkinson, 1977) schizophrenic children (Walker & Birch, 1970) and schizophrenic adolescents (Krynicki & Nahas,1979;Piran eta!, 1982). Thisstudy may have missed an actual relationship between age of onset and left-handedness because of several factors.…”

Section: Discussioncontrasting

confidence: 99%

Motor and Sighting Dominance in Chronic Schizophrenics

Merrin¹

1984

Br J Psychiatry

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The relationship was examined between sinistral eye and hand preference and age at first hospitalisation, clinical course and social competence in chronic schizophrenics. Motor and sighting dominance were assessed in 52 newly admitted chronic schizophrenic males. Left-handedness in this study was associated with inferior social competence, but left-eyedness with later age of first hospitalisation and proportionally less time spent in hospitals. These findings were only true for paranoid schizophrenics.

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Section: Discussioncontrasting

confidence: 99%

Motor and Sighting Dominance in Chronic Schizophrenics

Merrin¹

1984

Br J Psychiatry

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“…A somewhat different line of research has suggested that a relationship exists between anomalous lateralization patterns and a number of unadjusted behaviors (e.g., Beaumont & Diamond, 1973;Dean, Schwartz, & Hua, in press;Dean, Schwartz, & Smith, 1981;Zangwill, 1962). Consistent with the view that left-oriented patterns of laterality may be a valid indicator of underlying confusion in the organization of cortical hemispheres (Zangwill, 1962) are studies that indicate an overrepresentation of leftoriented lateral preference patterns in various groups of psychotics (e.g., Flor-Henry, 1977;Gur, 1977;Lishman & McMeekan, 1976;Nasrallah, McCalley-Whitters, & Kuperman, 1982;Walker & Birch, 1970).…”

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confidence: 77%

Lateral preference as a predictor of cognitive rigidity

1986

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This investigation examined the degree to which lateral preference patterns would predict cognitive rigidity. The scores on Laterality Preference Schedule for 60 normal adults were related to both the total number of corrects and rigidity scores of the Three Jar Test. The results showed that although patterns of lateral preference held little value in predicting whether a problem would be solved correctly, more left‐oriented patterns of preference for visually guided tasks were significantly related to the use of rigid solutions. These data were interpreted as lending support to both a multifactorial approach to lateral preference and neuropsychological implications for cognitive rigidity.

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“…Several studies of handedness and schizophrenia using a dichotomous classification have found that schizophrenic patients have an increased rate of non-right-handedness (20%) compared with normal subjects [10][11][12][13][14] with two exceptions [15,16], who found an excess of dextrality. Using a broader category of 'nonright-handedness' in schizophrenia, different studies found an association between schizophrenia and non-right-handedness but no increase in pure left-handedness [17][18][19]. The increase of non-right-handedness among the schizophrenic group supported the theory that there is a defect in the normal process of lateralization.…”

Section: Introductionmentioning

confidence: 87%

Non-Right-Handedness and Obstetrical Complications in Paranoid Hallucinatory Schizophrenics

Sperling

Martus²,

Barocka³

1999

Psychopathology

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In previous studies a link between pregnancy complications, minor physical anomalies and non-right-handedness was described in schizophrenic patients. There is evidence of an anomaly in the lateralization process in schizophrenia. Many studies of handedness and schizophrenia have found that schizophrenic patients have an increased rate of non-right-handedness compared with normal subjects. The contemporary neurodevelopmental hypothesis of schizophrenia emerged from pathobiological findings. In addition there is evidence for early brain lesions and malformations in fetal brain development. Especially pregnancy and birth complications have been found to be a risk factor for the later development of schizophrenia. In this study we set out to test the possible association between diagnosis and handedness, diagnosis and risk factors, as well as gender and handedness for 60 patients (30 men, 30 women) and 60 controls. The percentage of non-right-handedness was significantly elevated in the patient group (p = 0.0025). In a gender-specific analysis this result could be confirmed only for male patients. Peri- and postnatal developmental risk factors were significantly elevated in schizophrenics compared with controls. The percentage of all risk factors in the male group of schizophrenic non-right-handers was significantly elevated compared with right-handed male schizophrenics.

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Lateral Preference and Right-Left Awareness in Schizophrenic Children

Cited by 36 publications

References 0 publications

Motor and Sighting Dominance in Chronic Schizophrenics

Motor and Sighting Dominance in Chronic Schizophrenics

Lateral preference as a predictor of cognitive rigidity

Non-Right-Handedness and Obstetrical Complications in Paranoid Hallucinatory Schizophrenics

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