Spatiotemporal Organization of Touch Information in Tactile Neuron Population Responses

Research output: Contribution to book/Conference proceedings/Anthology/ReportConference contributionContributedpeer-review

Contributors

Abstract

Manual touch interactions elicit widespread skin vibrations that excite spiking responses in tactile neurons distributed throughout the hand. The spatiotemporal structure of these population responses is not yet fully understood. Here, we evaluate how touch information is encoded in the spatiotemporal organization of simulated Pacinian corpuscle neuron (PC) population responses when driven by a vibrometry dataset of whole-hand skin motion during commonly performed gestures. We assess the amount of information preserved in these peripheral population responses at various spatiotemporal scales using several non-parametric classification methods. We find that retaining the spatial structure of the whole-hand population responses is important for encoding touch gestures while conserving the temporal structure becomes more consequential for gesture representation in the responses of PCs located in the palm. In addition, preserving spatial structure is more beneficial for capturing gestures involving single rather than multiple digits. This work contributes to further understanding the sense of touch by introducing novel measurement-driven computational methods for analyzing the population-level neural representations of natural touch gestures over multiple spatiotemporal scales.

Details

Original languageEnglish
Title of host publication2023 IEEE World Haptics Conference, WHC 2023 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages183-189
Number of pages7
ISBN (electronic)979-8-3503-9993-6
Publication statusPublished - 2023
Peer-reviewedYes

Publication series

SeriesWorld Haptics Conference (WHC)

Conference

Title10th IEEE World Haptics Conference
Abbreviated titleWHC 2023
Conference number10
Duration10 - 13 July 2023
Website
Degree of recognitionInternational event
LocationDelft University of Technology
CityDelft
CountryNetherlands

Keywords

Keywords

  • Haptic neuroscience, Natural touch gestures, Neural spiking classification, Tactile information encoding