Developmental changes in tactual thresholds on dominant and nondominant sides.

Ghent, Lila

doi:10.1037/h0047319

Cited by 117 publications

(48 citation statements)

References 5 publications

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“…Left-side superiority has also been reported for pressure, pain, sharpness, and vibrotactile thresholds (Ghent 1961;Haslam 1970;Rhodes and Schwartz 1981;Semmes et al 1960;Weinstein and Sersen 1961), though Carmon et al (1969), and Fennel et al (1967) were unable to demonstrate laterality differences. Boll (1974) found that patients with right-hemisphere damage were more impaired on a battery of tactualperception tasks than those with left-hemisphere damage and concluded that while the left hemisphere may subserve contralateral tactual perception, the right is preeminent for both sides of the body.…”

Section: Introductionmentioning

confidence: 75%

Head and Body Hemispace to Left and Right III: Vibrotactile Stimulation and Sensory and Motor Components

et al. 1983

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Response latencies were measured to vibrotactile stimulation delivered to the forefingers of the left or right hands which were positioned ipsilaterally or contralaterally (across the midline) in left or right hemispace. While the two hands did not differ in speed of response, either hand performed better when located in right hemispace (experiment 1). This effect was greatly reduced, though not eliminated, with 90 degrees lateral head turn, when performance was better with stimulation and responding in right-of-head hemispace, but not right-of-body hemispace (experiment 2). When different hands received stimulation and initiated responses, and were located in either the same or opposite hemispace, right-hemispace superiority was found to be motor rather than sensory (experiment 3). These findings are discussed in the context of the true and the phenomenological midline and the clinical syndrome of hemineglect.

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Section: Introductionmentioning

confidence: 75%

Head and Body Hemispace to Left and Right III: Vibrotactile Stimulation and Sensory and Motor Components

et al. 1983

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“…First, in some studies or in aspects of these studies (Ghent, 1961;Semmes, et al, 1960;Weinstein's unpublished study, cited by Semrnes, et al, 1960;Weinstein, 1968;Weinstein & Sersen, 1961), the difference between the left and the right sides of the body did not reach statistical significance. Further, in aspects of some studies the distribution of lateral sensitivities was random (Garfinkel, 1965;Weinstein & Sersen, 1961).…”

mentioning

confidence: 91%

“…Locations which have been assessed for lateral differentiation of tactile sensitivity to pressure include the hand (Carmon, Bilstrom, & Benton, 1969;Fennell, Satz, & Wise, 1967;Garfinkel, 1965;Ghent, 1961;Semmes, Weinstein, Ghent, & Teuber, 1960;Sersen, Weinstein, & Vetter, 1966, unpublished data cited by Weinstein, 1978;Weinstein's unpublished study, cited by Semmes, et al, 1960;Weinstein, 1962Weinstein, , 1968Weinstein & Sersen, 1961), wrist (Carrnon, et al, 1969), arm (Garfinkel, 1965;Ghent, 1961;Weinstein's unpublished study, cited by Sernrnes, et al, 1960;Weinstein, 1968;Weinstein & Sersen, 1961), foot (Weinstein's unpublished study cited by Semmes, et al, 1960;Weinstein, 1968;Weinstein & Sersen, 1961), shoulder, forehead, face, trunk, and leg (Weinstein, 1968).…”

mentioning

confidence: 99%

Lateral Asymmetry and Tactile Sensitivity

Kaplan-Solms

Saling

1988

Percept Mot Skills

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Weinstein found in 1963 that the left female breast is more sensitive to tactile stimulation than the right breast. Saling and Cooke in 1984 hypothesized that this asymmetry in breast sensitivity underlies the well-documented leftward bias in maternal cradling behaviour, which is independent of manual specialization. Our interest in the Saling and Cooke hypothesis led to an attempt to replicate Weinstein's 1963 study. His findings were not supported. Further, a review of the literature on the lateral distribution of cutaneous thresholds showed that there is little experimental support for the widely held belief that the left side of the body is uniformly more sensitive than the right.

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“…Based on the work of Ghent (1961) and Weinstein (1962Weinstein ( , 1968Weinstein & Sersen, 1961) on the tactile sense, a greater sensitivity on the nondominant side might have been predicted. However, our results clearly indicate a greater dextral sensitivity even though one subject was sinistral.…”

Section: Discussionmentioning

confidence: 99%

Bilateral spatial summation of cooling of symmetrical sites

Rózsa

Kenshalo

1977

Perception & Psychophysics

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The possibility of spatial summation of conducted -ATs (temperature decrements from the adapted skin temperature) was tested when the -ATs were presented simultaneously and individually at symmetrical sites on either side of the body. The use of a signal detection rating method yielded data that indicate that spatial summation is complete (area and intensity trade reciprocally) for -As near threshold and at clearly suprathreshold intensities of stimulation is invariant of the adapted skin temperature (AT), and the intensity of stimulation within the range of stimuli used (from as little as -O.05°C to as much as -1.25°C). In view of the characteristics ascribed to the thermosensory apparatus in humans. it is postulated that spatial summation occurs in the central nervous system.Based primarily upon psychophysical measurements of human temperature sensitivity, several variables of thermal stimulation are of primary importance (Kenshalo, 1972). These are: (a) the initial (adapted) skin temperature; (b) the intensity of the temperature change from the adapted skin temperature; (c) the rate of the temperature change; (d) the body site being stimulated; and (e) the area of the skin surface that is stimulated (spatial summation). Of these, the last, spatial summation, is the subject of this investigation. Hardy and Oppel (1937) showed that + ATs (temperature increments from normal skin temperature) summate extensively-so much so that at threshold the intensity of the stimulus and its spatial extent can trade almost reciprocally. While many of the earlier studies investigated spatial summation at threshold, more recent ones show that the effect of spatial summation of + ATs becomes progressively smaller with increased stimulus intensities (Marks, 1971;Marks & Stevens, 1973; Stevens & Marks, 1971). The amount of summation of + ATs appeared to decrease as the area stimulated increased in size, an observation also made by Herget, Granath, and Hardy (1941).Not only does spatial summation of + ATs occur at single sites of increasing area, but it also occurs when two sites, symmetrically located on opposite sides of the body, are simultaneously stimulated. Hardy and Oppel (1937) found that the threshold for + ATs was lower when the backs of the two hands were simultaneously stimulated than when either

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Developmental changes in tactual thresholds on dominant and nondominant sides.

Cited by 117 publications

References 5 publications

Head and Body Hemispace to Left and Right III: Vibrotactile Stimulation and Sensory and Motor Components

Head and Body Hemispace to Left and Right III: Vibrotactile Stimulation and Sensory and Motor Components

Lateral Asymmetry and Tactile Sensitivity

Bilateral spatial summation of cooling of symmetrical sites

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