The aim of this study was to investigate the performance of patients with unilateral hemisphere damage in immediate and delayed recognition of meaningless visual patterns (scrawls). In both tasks the group with right hemisphere damage was found to be inferior. The impairment was considered to reflect a hemispheric asymmetry in perception, which is apparent whenever subtle visual discrimination is required. The assumption that the right hemisphere plays a role in certain types of memory processes was not confirmed.
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References
1.
Boller, F., and De Renzi, E.: Relationship between visual memory defects and hemispheric locus of lesion. Neurology, 1967, 17, 1052-1057.
2.
De Renzi, E., and Faglioni, P.: The comparative efficiency of intelligence and vigilance tests in detecting hemispheric cerebral damage. Cortex, 1965, 1, 410-433.
3.
De Renzi, E., Faglioni, P., and Spinnler, H.: The performance of patients with unilateral brain damage on face recognition tasks. Cortex, 1968, 4, 17-34.
4.
De Renzi, E., Scotti, G., and Spinnler, H.: Perceptual and associative disorders of visual recognition. Their relationship to the side of cerebral lesion. Neurology, 1969, 19, 634-642.
5.
De Renzi, E., and Spinnler, H.: Facial recognition in brain-damaged patients. Neurology, 1966, 16, 145-152. (a)
6.
De Renzi, E., and Spinnler, H.: Visual recognition in patients with unilateral cerebral disease. Journal of Nervous and Mental Disease, 1966, 142, 515-525. (b)
7.
De Renzi, E., and Spinnler, H.: The influence of verbal and non-verbal defects on visual memory tasks. Cortex, 1966, 2, 322-336. (c)
8.
De Renzi, E., and Spinnler, H.: Impaired performance on color tasks in patients with hemispheric damage. Cortex, 1967, 3, 194-216.
9.
Elston, R.C., and Bush, N.: The hypothesis that can be tested when there are interactions in an analysis of variance model Biometrics, 1964, 20, 681-698.
10.
Faglioni, P., Scotti, G., and Spinnler, H.: Impaired recognition of written letters following unilateral hemispheric damage. Cortex, 1969, in press.
11.
Kimura, D.: Right temporal damage. Archives of Neurology, 1963, 8, 264-271.
12.
Landsdell, H.C.: Two selective deficits found to be lateralized in temporal neurosurgery patients. Paper read at the 32nd Annual meeting of the Eastern Psychological Assn., Philadelphia, 1961.
13.
Meier, M.S, and French, L.A.: Lateralized deficits in complex visual discrimination and bilateral transfer of reminiscence following unilateral temporal lobectomy. Neuropsychologia, 1965, 23, 261-272.
14.
Meyer, V., and Yates, A.J.: Cognitive changes following temporal lobectomy for the relief of focal temporal lobe epilepsy. Unpublished doctoral dissertation, University of London, 1955.
15.
Milner, B.: Psychological defects produced by temporallobe excision. Research Publ., Assn. Nervous and Mental Diseases, 1958, 36: 244-257.
16.
Milner, B.: Functional asymmetry of the temporal lobes of men. In: M. Kinsbourne(Ed.), Hemispheric Function, London: Tavistock, 1968.
17.
Milner, B., and Kimura, D.: Dissociable visual learning defects after unilateral temporal lobectomy in man. Paper read at 38th Annual meeting of the Eastern Psychological Assn., Boston, 1964.
18.
Newcombe, F.: Extracts from selective intellectual deficit in relation to focal cerebral lesions. Unpublished doctoral thesis, Oxford University, 1966.
19.
Poppelreuter, W.: Die Storungen der niederen und hoheren Sehleistungen durch Verletzung des Okzipitalhirns. In: Die psychischen Schadigungen durch Kopfschuss im Kriege, I Band, Leipzig: Voss, 1914/16.
20.
Scotti, G., and Spinnler, H.: Colour imperception in unilateral hemisphere-damaged patients. Neurology, Neurosurgery, Psychiatry, 1969, in press.
21.
Warrington, E.K., and James, M.: Disorders of visual perception in patients with localized cerebral lesions. Neuropsychologia, 1967, 5, 253-266.
