NDLI: ERP evidence of tactile texture processing: Effects of roughness and movement

Content Provider	IEEE Xplore Digital Library
Author	Ballesteros, S. Munoz, F. Sebastian, M. Garcia, B. Reales, J.M.
Copyright Year	2009
Description	Author affiliation: Departamento de Psicología Básica II, Universidad Nacional de Educación a Distancia, Madrid (Spain) (Ballesteros, S.; Munoz, F.; Sebastian, M.; Garcia, B.; Reales, J.M.)
Abstract	Psychological and neurophysiological studies have investigated the peripheral neural mechanisms implicated in tactile roughness perception. However, the cortical mechanisms involved in roughness processing are not well understood. In the present study, we used behavioural data and event-related evoked potentials (ERPs) to investigate the extent to which two tactile stimuli varying in roughness (triangular gratings peak-to-peak spacing of 1.6 mm and 2.8 mm) and movement (the time available for tactile contact with the surface) modulate early stages of brain activation. Behavioral results showed that participants discriminate the two levels of roughness at the three velocities explored in the study but they were judged as equivalent in pleasantness. The ERP results showed a biphasic early-fast N1-P2 deflection. The N1 and P2 peaks to the smoother texture occur earlier than that of the rougher texture. Considering velocity, the N1 onset occurs later for the slowest velocity, followed by the intermediate velocity and earlier for the fastest velocity and the three velocities differ significantly. LORETA analysis showed that N1 and P2 components of surface roughness are both related to the activation produced in the somatosensory cortex and posterior cingulated respectively, suggesting that these areas might be involved in the sensory processing of roughness.
Starting Page	166
Ending Page	171
File Size	1037264
Page Count	6
File Format	PDF
ISBN	9781424438587
DOI	10.1109/WHC.2009.4810901
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-03-18
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Teleoperators ERP Virtual environment Psychology Enterprise resource planning Surface roughness Rough surfaces Haptic interfaces Conducting materials roughness Cities and towns Surface texture tactile texture perception
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
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7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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