Abstract
Although a large proportion of left-handed individuals use an inverted hand posture, the phenomenon is rarely observed in right-handers. A number of studies have suggested that among a subset of left-inverters (Lis), hand inversion is associated with anomalies of the neural systems that mediate visuospatial or vi-suomotor functions. In the present study, significant discrepancies between Verbal and Performance IQ were found in a right-inverted (RI) adolescent referred for psychiatric evaluation and in a sample of three RI college students. The results suggest that inversion may be a marker for relative visuospatial and visuomotor deficits in RIs, even when overall IQ is well above average. Furthermore, the findings raise the possibility that when psychiatric problems accompany hand inversion, dysfunction of the nonverbal hemisphere may be implicated.
Original language | English (US) |
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Pages (from-to) | 175-192 |
Number of pages | 18 |
Journal | Neuropsychiatry, Neuropsychology and Behavioral Neurology |
Volume | 4 |
Issue number | 3 |
State | Published - 1991 |
Externally published | Yes |
Keywords
- Deficits
- Hand inversion
- Left-handedness
- Visuomotor and visuospatial
ASJC Scopus subject areas
- General Psychology
- Neurology
- Clinical Neurology
- Psychiatry and Mental health