Differential effects of galvanic vestibular stimulation on arm position sense in right- vs. left-handers

Schmidt, Lena; Artinger, Frank; Stumpf, Oliver; Kerkhoff, Georg

doi:10.1016/j.neuropsychologia.2013.02.013

Cited by 21 publications

(26 citation statements)

References 43 publications

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“…This capacity was obviously unrelated to hand preference and grip force values, which were uniformly higher in the right arm in our right-handed sample. This finding corroborates a very similar finding from a recent study showing that healthy right-handers are not better in horizontal APS in their dominant, right hand as compared to their non-dominant, left hand (Schmidt et al, 2013c). Recent studies revealed also that it depends on task demands which limb shows better performance in proprioceptive tasks (Goble et al, 2006; Goble and Brown, 2007, 2009).…”

Section: Discussionsupporting

confidence: 92%

“…Moreover, grip force was measured by Jamar hand grip dynamometer (Degasport, D-83115 Neubeuern, Germany) to rule out a potential influence of hand strength on APS. Participants had to hold their shoulder in 90° of abduction and their elbow in 30° of flexion by the side of their body, grip strength was measured in three trials for each hand and the outcome parameter was the averaged strength in kilogram, separately for each arm (see also Schmidt et al, 2013c). Exclusion criteria were a history of neurological and psychiatric disorders, dementia and physiological impairments of the arm which would not allow arm movements (see Table 1).…”

Section: Methodsmentioning

confidence: 99%

“…The arm support was likewise moveable in the horizontal plane from 0–90° for elbow joint rotation in order to locate individual's actually horizontal arm position. A digital control panel showed the difference in degrees of visual angle between the optically required position (position of the LED) and the current position of the subject's forearm (position of the arm support) with a resolution of 0.1° [for further details, see Schmidt et al (2013a,c)].…”

Section: Methodsmentioning

confidence: 99%

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Effects of age, sex and arm on the precision of arm position sense—left-arm superiority in healthy right-handers

Schmidt

Depper

Kerkhoff

2013

Front. Hum. Neurosci.

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Position sense is an important proprioceptive ability. Disorders of arm position sense (APS) often occur after unilateral stroke, and are associated with a negative functional outcome. In the present study we assessed horizontal APS by measuring angular deviations from a visually defined target separately for each arm in a large group of healthy subjects. We analyzed the accuracy and instability of horizontal APS as a function of age, sex and arm. Subjects were required to specify verbally the position of their unseen arm on a 0-90° circuit by comparing the current position with the target position indicated by a LED lamp, while the arm was passively moved by the examiner. Eighty-seven healthy subjects participated in the study, ranging from 20 to 77 years, subdivided into three age groups. The results revealed that APS was not a function of age or sex, but was significantly better in the non-dominant (left) arm in absolute errors (AE) but not in constant errors (CE) across all age groups of right-handed healthy subjects. This indicates a right-hemisphere superiority for left APS in right-handers and neatly fits to the more frequent and more severe left-sided body-related deficits in patients with unilateral stroke (i.e. impaired APS in left spatial neglect, somatoparaphrenia) or in individuals with abnormalities of the right cerebral hemisphere. These clinical issues will be discussed.

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Section: Discussionsupporting

confidence: 92%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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Effects of age, sex and arm on the precision of arm position sense—left-arm superiority in healthy right-handers

Schmidt

Depper

Kerkhoff

2013

Front. Hum. Neurosci.

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“…studies confirm that this level of GVS activates the vestibular organs, without effects persisting beyond the period of stimulation (Fitzpatrick and Day, 2004). Further, behavioural changes have been reported with such low intensities GVS (Wilkinson et al, 2010;Kerkhoff et al, 2011;Schmidt et al, 2013aSchmidt et al, , 2013bFerrè et al, 2013bFerrè et al, , 2013c. Carbon rubber electrodes (area 10 cm 2 ) coated with electrode gel were placed binaurally over the mastoid processes and fixed in place with adhesive tape.…”

Section: Galvanic Vestibular Stimulation (Gvs)mentioning

confidence: 55%

Vestibular contributions to a right-hemisphere network for bodily awareness: Combining galvanic vestibular stimulation and the “Rubber Hand Illusion”

2015

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An altered sense of one's own body is a common consequence of vestibular damage, and also of damage to vestibular networks in the right hemisphere. However, few experimental studies have investigated whether vestibular signals contribute to bodily awareness. We addressed this issue by combining an established experimental model of bodily awareness (Rubber Hand Illusion -RHI) with galvanic vestibular stimulation (GVS) in healthy participants. Brief left anodal and right cathodal GVS (which predominantly activates vestibular networks in the right hemisphere), or right anodal and left cathodal GVS, or sham stimulation were delivered at random, while participants experienced either synchronous or asynchronous visuo-tactile stimulation of a rubber hand and their own hand. The drift in the perceived position of the participant's hand towards the rubber hand was used as a proxy measure of the resulting multisensory illusion of body ownership. GVS induced strong polarity-dependent effects on this measure of RHI: left anodal and right cathodal GVS produced significantly lower proprioceptive drift than right anodal and left cathodal GVS. We suggest that vestibular inputs influence the multisensory weighting functions that underlie bodily awareness: the right hemisphere vestibular projections activated by the left anodal and right cathodal GVS increased the weight of intrinsic proprioceptive signals about hand position, and decreased the weight of visual information responsible for visual capture during the RHI.

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“…This suggests that GVS increased visual capture, a dominance of visual signals over proprioceptive signals [47,91]. Second, mislocalization of the participant's hand, which appears closer to the rubber hand, was lessened by right cathodal GVS [92], suggesting an influence of vestibular signals on proprioception [93,94]. Altogether, healthy participants data suggest that vestibular stimulation may modulate visual and proprioceptive signal integration (for recent accounts, see [95,96,97 & ]) in a more specific way than general hemispheric activation. ]…”

Section: Illusory Ownership For a Handmentioning

confidence: 96%

The vestibular system

Lopez

2016

Current Opinion in Neurology

117

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In addition to 'balancing the body', the vestibular cortical network contributes to modulate space, body and self-awareness. Emerging evidence suggests that the vestibular network expands into dimensions of emotion processing, mental health, and social cognition. Here, the importance of connecting vestibular physiology, affective neuroscience, and social neuroscience to better understand the psychological aspects of vertigo in otoneurology is discussed.

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Differential effects of galvanic vestibular stimulation on arm position sense in right- vs. left-handers

Cited by 21 publications

References 43 publications

Effects of age, sex and arm on the precision of arm position sense—left-arm superiority in healthy right-handers

Effects of age, sex and arm on the precision of arm position sense—left-arm superiority in healthy right-handers

Vestibular contributions to a right-hemisphere network for bodily awareness: Combining galvanic vestibular stimulation and the “Rubber Hand Illusion”

The vestibular system

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