Temporal patterns in electrical nerve stimulation: Burst gap code shapes tactile frequency perception

We have previously described a novel temporal encoding mechanism in the somatosensory system, where mechanical pulses grouped into periodic bursts create a perceived tactile frequency based on the duration of the silent gap between bursts, rather than the mean rate or the periodicity. This coding st...

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Vydáno v:	PloS one Ročník 15; číslo 8; s. e0237440
Hlavní autoři:	Ng, Kevin K. W., Olausson, Christoffer, Vickery, Richard M., Birznieks, Ingvars
Médium:	Journal Article
Jazyk:	angličtina
Vydáno:	San Francisco Public Library of Science 13.08.2020 Public Library of Science (PLoS)
Témata:	Biology and Life Sciences Bursts Central nervous system Coding Data acquisition systems Electric currents Electrical currents Electrical stimuli Experiments Firing pattern Haptic interfaces Information processing Interfaces Mechanical properties Mechanical stimuli Medical research Medicine and Health Sciences Neural circuitry Neural coding Neural prostheses Neural stimulation Neurosciences Perception Perceptions Periodic variations Periodicity Physical Sciences Physiological aspects Prosthetics Sensory neurons Social Sciences Software Somatosensory system Stimulation Stimuli Tactile stimuli Australia Sydney New South Wales Australia United Kingdom > UK United States > US
ISSN:	1932-6203, 1932-6203
On-line přístup:	Získat plný text
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Popis
Shrnutí:	We have previously described a novel temporal encoding mechanism in the somatosensory system, where mechanical pulses grouped into periodic bursts create a perceived tactile frequency based on the duration of the silent gap between bursts, rather than the mean rate or the periodicity. This coding strategy may offer new opportunities for transmitting information to the brain using various sensory neural prostheses and haptic interfaces. However, it was not known whether the same coding mechanisms apply when using electrical stimulation, which recruits a different spectrum of afferents. Here, we demonstrate that the predictions of the burst gap coding model for frequency perception apply to burst stimuli delivered with electrical pulses, re-emphasising the importance of the temporal structure of spike patterns in neural processing and perception of tactile stimuli. Reciprocally, the electrical stimulation data confirm that the results observed with mechanical stimulation do indeed depend on neural processing mechanisms in the central nervous system, and are not due to skin mechanical factors and resulting patterns of afferent activation.
Bibliografie:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 14 content type line 23 Competing Interests: The authors have declared that no competing interests exist. These authors are joint senior authors on this work.
ISSN:	1932-6203 1932-6203
DOI:	10.1371/journal.pone.0237440