Oscillatory Responses to Tactile Stimuli of Different Intensity.
C-tactile afferents
EEG
knismesis
salience
touch
Journal
Sensors (Basel, Switzerland)
ISSN: 1424-8220
Titre abrégé: Sensors (Basel)
Pays: Switzerland
ID NLM: 101204366
Informations de publication
Date de publication:
20 Nov 2023
20 Nov 2023
Historique:
received:
13
10
2023
revised:
15
11
2023
accepted:
16
11
2023
medline:
27
11
2023
pubmed:
25
11
2023
entrez:
25
11
2023
Statut:
epublish
Résumé
Tactile perception encompasses several submodalities that are realized with distinct sensory subsystems. The processing of those submodalities and their interactions remains understudied. We developed a paradigm consisting of three types of touch tuned in terms of their force and velocity for different submodalities: discriminative touch (haptics), affective touch (C-tactile touch), and knismesis (alerting tickle). Touch was delivered with a high-precision robotic rotary touch stimulation device. A total of 39 healthy individuals participated in the study. EEG cluster analysis revealed a decrease in alpha and beta range (mu-rhythm) as well as theta and delta increase most pronounced to the most salient and fastest type of stimulation. The participants confirmed that slower stimuli targeted to affective touch low-threshold receptors were the most pleasant ones, and less intense stimuli aimed at knismesis were indeed the most ticklish ones, but those sensations did not form an EEG cluster, probably implying their processing involves deeper brain structures that are less accessible with EEG.
Identifiants
pubmed: 38005672
pii: s23229286
doi: 10.3390/s23229286
pmc: PMC10675731
pii:
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Subventions
Organisme : grant of the Russian Ministry of Science and Higher 313 Education
ID : 075-15-2022-1139
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