id:"swepub:oai:gup.ub.gu.se/239548"
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- Panchuelo, R. M. S. (author)
Mapping quantal touch using 7 Tesla functional magnetic resonance imaging and single-unit intraneural microstimulation
- Article/chapterEnglish2016
Publisher, publication year, extent ...
- 2016
Numbers
- LIBRIS-ID:oai:gup.ub.gu.se/239548
- https://gup.ub.gu.se/publication/239548URI
- https://doi.org/10.7554/eLife.12812DOI
Supplementary language notes
- Language:English
Part of subdatabase
- SwePubSwePub
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Notes
- Using ultra-high field 7 Tesla (7T) functional magnetic resonance imaging (fMRI), we map the cortical and perceptual responses elicited by intraneural microstimulation (INMS) of single mechanoreceptive afferent units in the median nerve, in humans. Activations are compared to those produced by applying vibrotactile stimulation to the unit's receptive field, and unit-type perceptual reports are analyzed. We show that INMS and vibrotactile stimulation engage overlapping areas within the topographically appropriate digit representation in the primary somatosensory cortex. Additional brain regions in bilateral secondary somatosensory cortex, premotor cortex, primary motor cortex, insula and posterior parietal cortex, as well as in contralateral prefrontal cortex are also shown to be activated in response to INMS. The combination of INMS and 7T fMRI opens up an unprecedented opportunity to bridge the gap between first-order mechanoreceptive afferent input codes and their spatial, dynamic and perceptual representations in human cortex.
Subject headings and genre
- MEDICIN OCH HÄLSOVETENSKAP Klinisk medicin hsv//swe
- MEDICAL AND HEALTH SCIENCES Clinical Medicine hsv//eng
- primary somatosensory cortex
- median nerve-stimulation
- false discovery
- rate
- human hand
- cutaneous mechanoreceptors
- thalamocortical axons
- cerebral-cortex
- glabrous skin
- fmri
- representation
- Life Sciences & Biomedicine
Added entries (persons, corporate bodies, meetings, titles ...)
- Ackerley, Rochelle,1980Gothenburg University,Göteborgs universitet,Institutionen för neurovetenskap och fysiologi, sektionen för fysiologi,Institute of Neuroscience and Physiology, Department of Physiology(Swepub:gu)xackro (author)
- Glover, P. M. (author)
- Bowtell, R. W. (author)
- Wessberg, Johan,1962Gothenburg University,Göteborgs universitet,Institutionen för neurovetenskap och fysiologi, sektionen för fysiologi,Institute of Neuroscience and Physiology, Department of Physiology(Swepub:gu)xwessj (author)
- Francis, S. T. (author)
- McGlone, F. (author)
- Göteborgs universitetInstitutionen för neurovetenskap och fysiologi, sektionen för fysiologi (creator_code:org_t)
Related titles
- In:Elife52050-084X
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