Cerebral hemisphere asymmetry: Methods, issues, and implications

Hellige, Joseph B.

doi:10.1007/bf02766402

Cited by 34 publications

(12 citation statements)

References 60 publications

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“…With these things in mind, the following laterality indexes were computed for each subject in the dichotic listening task and for tachistoscopic recognition of both lowercase and uppercase letters. Further discussion of these indexes and references to the articles in which each was origi nally proposed can be found in various chapters in Hellige (1983). The following five indexes were computed for both dichotic listening and tachistoscopic recognition:…”

Section: Comparison Of Laterality Indexesmentioning

confidence: 99%

Multitask investigation of individual differences in hemispheric asymmetry.

Hellige¹,

Bloch²,

Taylor³

1988

Journal of Experimental Psychology: Human Perception and Perfor

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Right-handed subjects (N = 120) participated in four different laterality tasks designed to measure aspects of cerebral hemisphere asymmetry: identification of dichotically presented consonant-vowel syllables (CVs), examination of the effects of concurrent repetition of CVs and concurrent anagram solution on finger-tapping by the right and left hands, lateralized identification of CVs presented tachistoscopically to the left and right visual fields, and left/right biases on a free-vision face task involving judgments of emotion. Ear differences in the dichotic listening task were related to the pattern of lateralized interference in the dual-task finger-tapping paradigm. There were no other significant relations between pairs of tasks, but when the present results are considered in the light of other recent experiments, there appears to be a relation between lateral bias on the free-vision face task and visual field differences in tachistoscopic identification. The pattern of results has implications for hypothesized individual differences among right-handers in cerebral dominance for verbal processes, input pathway dominance, and asymmetric arousal of the two cerebral hemispheres.

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Section: Comparison Of Laterality Indexesmentioning

confidence: 99%

Multitask investigation of individual differences in hemispheric asymmetry.

Hellige¹,

Bloch²,

Taylor³

1988

Journal of Experimental Psychology: Human Perception and Perfor

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“…By tachistoscopically presenting visual stimuli separately to the two half-fields, researchers have demonstrated that dextrals generally show a right visual field (RVF) superiority for the recognition of linguistic stimuli (i.e., letters, words) and, less consistently, a left visual field (LVF) superiority with spatial stimuli (i.e., geometric forms). (For an excellent overview of this research, see Hellige, 1979. ) However, these characteristic patterns of hemispheric superiority can be altered by degrading the stimulus, requiring concurrent cognitive activity, or manipulating expectancies (Moscovitch, 1979).…”

Section: Hemiretinal Studiesmentioning

confidence: 99%

Intra- and interhemispheric information processing in schizophrenia.

Walker

McGuire²

1982

Psychological Bulletin

110

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Over the past decade, psychopathology researchers have offered several hypotheses linking schizophrenia to specific patterns of hemispheric dysfunction. These hypotheses have, in turn, generated a substantial body of literature on intra-and interhemispheric information processing in schizophrenia. The present article reviews this literature and critically evaluates the relative merits of various hypotheses put forward to account for the findings. There appears to be little support for the notion that schizophrenia is related to interhemispheric transfer deficits or abnormal functional lateralization. The performance deficits manifested by schizophrenics on lateral information processing tasks are also incompatible with models drawn from the literature on left-hemisphere brain damage. Instead, the results suggest left-hemisphere overactivation and consequent temporal abnormalities in processing sensory information directed to the right sensory field.Neuropsychological research has revealed significant functional differences between the two hemispheres of the human brain. The right and left hemispheres appear to differ in their .processing strategies as well as in their capacity for performing linguistic, visuospatial, and affective tasks (Moscovitch, 1979;Tucker, 1981). Stimulated by these findings, psychopathology researchers have offered hypotheses linking specific patterns of hemispheric dysfunction to schizophrenia. Flor-Henry (1976 was among the first to propose that schizophrenia is related to left-hemisphere impairment. His hypothesis was predicated on several lines of evidence: (a) the reported association between left-hemisphere lesions and schizophreniclike symptomatology, (b) the linguistic abnormalities commonly manifested by schizophrenics, and (c) the results of neuropsychological studies suggesting left-hemisphere dysfunction in schizophrenic patients. Gur (1978Gur ( , 1979 subsequently elaborated on

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“…The tendency for humans to prefer use of one arm versus the other when performing activities of daily living has been cited as one of the most obvious examples of lateralized brain function (Hellige, 1983). This phenomenon, often referred to as handedness , commonly favors use of the right arm (Annett, 1985; Gilbert & Wysocki, 1992) and has classically been attributed to a contralateral left hemisphere specialization for the control of motor output (e.g., Liepmann, 1908, 1920).…”

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confidence: 99%

Upper limb asymmetries in the perception of proprioceptively determined dynamic position sense.

Goble

Brown

2010

Journal of Experimental Psychology: Human Perception and Perfor

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Recent studies of position-related proprioceptive sense have provided evidence of a nonpreferred left arm advantage in right-handed individuals. The present study sought to determine whether similar asymmetries might exist in "dynamic position" sense. Thirteen healthy, right-handed adults were blindfolded and seated with arms placed on instrumented manipulanda. In Part 1, subjects performed dynamic position matching of 3 target elbow amplitudes determined with the preferred or nonpreferred arm, and then matched during movement of the same or opposite elbow. In Part 2, a similar paradigm was used, but with varying target determination speeds to account for the so called "tau effect." Overall, it was found that errors were smaller when the matching phase involved the nonpreferred arm, especially for larger target amplitudes. This asymmetry was independent of the tau effect and likely reflects specialization of the right hemisphere/left arm for proprioceptive feedback processing that is either position- or dynamic position-related.

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Cerebral hemisphere asymmetry: Methods, issues, and implications

Cited by 34 publications

References 60 publications

Multitask investigation of individual differences in hemispheric asymmetry.

Multitask investigation of individual differences in hemispheric asymmetry.

Intra- and interhemispheric information processing in schizophrenia.

Upper limb asymmetries in the perception of proprioceptively determined dynamic position sense.

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