Visual impairment, verbal humor, and conservation |
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Authors: | P E Tait |
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Abstract: | Through a cerebral hemispheric specialization model, I speculated that the reported discrepancy between visually impaired children's competency in language development and lags in cognition may be explained by the use of visual-spatial measurements of cognition. The performance of 51 visually impaired and 51 sighted children, ages 7 to 15 years, on a task of joke comprehension and conservation of weight scores was analyzed. I hypothesized that the ability to comprehend verbal humor would reflect the function of the left hemisphere of the brain and the ability to perform a Piagetian visual-spatial task would reflect the function of the right hemisphere. The findings indicate that although age and IQ contributed significantly to predicting joke comprehension, the ability to conserve did not have a unique contribution. In conclusion, I suggest that the cerebral hemispheric specialization model be considered when investigating language and cognition of visually impaired children. |
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