Recognition of tachistoscopically presented verbal and non-verbal material after unilateral cerebral damage

Shai, Amnon; Goodglass, Harold; Barton, Melvin I.

doi:10.1016/0028-3932(72)90058-9

Cited by 25 publications

(3 citation statements)

References 14 publications

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“…Aphasics in this study were found to have right hemispheric preferences for visual stimuli comparable to those for auditory stimuli under dichotic testing. Similar results have been reported by Shai, Goodglass and Barton (1972) who tested aphasic subjects with tachistoscopic procedures. These findings suggest that the neurological mechanisms involved in processing auditory stimuli under dichotic conditions are similar to those for processing visual stimuli under tachistoscopic conditions in aphasic subjects.…”

Section: Hemispheric Processing Studies With Aphasic Patientssupporting

confidence: 90%

Language recovery in aphasia: A right hemisphere perspective

Moore

1989

Aphasiology

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Recovery of language function following brain injury has been attributed to various phenomena including spontaneous recovery of function, reduction of physiological symptoms (for example, reduced oedema), and to the transfer of function to surrounding cerebral structures. These explanations have been based on the concept of the left hemisphere as the sole processor oflanguage. The present article reviews the research findings which provide evidence to support a hypothesis of right hemispheric compensation as one of the major mechanisms for language recovery/compensation in many aphasic patients.

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Section: Hemispheric Processing Studies With Aphasic Patientssupporting

confidence: 90%

Language recovery in aphasia: A right hemisphere perspective

Moore

1989

Aphasiology

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“…It must be noted that not all tachistoscopic experiments with brain-damaged patients have yielded such a pattern of results. For example, Shai, Goodglass, and Barton (1972) found deficits only in the field contralateral to the lesion, as did Dimond and Beaumont (1974). Stimulus presentation was above-threshold in the latter studies, however, which may have allowed higher redundancy of the input than in the forementioned experiments.…”

Section: Empirical Evidencementioning

confidence: 75%

Inferences from unilateral brain damage about normal hemispheric functions in visual pattern recognition.

Sergent

1984

Psychological Bulletin

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The understanding of normal hemispheric functions in visual information processing relies on inferences from deficits displayed by unilaterally brain-damaged patients. Recent findings in the neuroanatomy and physiology of the visual system and cerebral structures suggest that the brain is an interactive system whose two hemispheres participate conjointly in the production of behavior, and that damage in one component inevitably affects other components. The implications of these properties for research on unilaterally brain-damaged patients are outlined, and empirical evidence of sensory impairments following extrastriate lesion is presented. It is suggested that the effects of such lesions on the neural descriptions of a visual stimulus is to produce deprivation of some aspects of the incoming information, particularly those on which the left hemisphere normally operates. The visuospatial competence of the left hemisphere may not be displayed in such conditions because the representations of the visual world, as elaborated in a damaged brain, are not compatible with its specific neural sensitivity, although the right hemisphere can accommodate itself to such representations. In addition, an examination of relevant findings from the normal population indicates that the critical contribution of the right hemisphere to visual pattern recognition prevails under conditions of substantial functional sensory deficits resulting from the particular viewing conditions inherent in lateral tachistoscopic presentations. It is suggested that research on brain-damaged patients and normal subjects in visual information processing yields findings that must be interpreted within the context of, and in terms appropriate to, brain functioning for valid inferences about the normal functions of the cerebral hemispheres.

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“…For one, White (1969) cautioned that nonverbal percepts may be recalled by their verbal labels. For another, brain-damaged subjects have shown contradictory hemispheric functions (Shai, Goodglass, & Barton, 1972;Teng & Sperry, 1973). Apparently, stimuli thought to involve nonverbal right-hemisphere processing were processed in the left hemisphere when the right was not functioning.…”

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confidence: 99%

Laterality effects with visual perception of

Salis

1980

Perception & Psychophysics

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Using the paradigm denoting a contralateral relationship between visual field and brain hemisphere, laterality effects with music notation and dots were investigated. Two groups of readers of advanced piano music were selected, one good, one poor. Each group participated in two visual half-field experiments, one using random dot patterns and the other using musical chords. Significant opposite field effects were found for the two kinds of stimuli across reading groups, the left field for dots and the right field for chords. With dots, a significant sex effect emerged, with males superior to females across groups. The only significant group difference appeared in the chord experiment, in which the good group was superior. A practice effect also was found only with chords. Results suggest that the left hemisphere is more important for recognition of music notation than the right.

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Recognition of tachistoscopically presented verbal and non-verbal material after unilateral cerebral damage

Cited by 25 publications

References 14 publications

Language recovery in aphasia: A right hemisphere perspective

Language recovery in aphasia: A right hemisphere perspective

Inferences from unilateral brain damage about normal hemispheric functions in visual pattern recognition.

Laterality effects with visual perception of

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