eprintid: 1519888
rev_number: 33
eprint_status: archive
userid: 608
dir: disk0/01/51/98/88
datestamp: 2016-10-08 19:36:10
lastmod: 2021-09-17 22:04:17
status_changed: 2017-01-12 14:48:03
type: article
metadata_visibility: show
creators_name: Bunday, KL
creators_name: Lemon, RN
creators_name: Kilner, JM
creators_name: Davare, M
creators_name: Orban, GA
title: Grasp-specific motor resonance is influenced by the visibility of the observed actor
ispublished: pub
divisions: UCL
divisions: B02
divisions: C07
divisions: D07
divisions: F84
divisions: F85
keywords: Science & Technology, Life Sciences & Biomedicine, Behavioral Sciences, Neurosciences, Neurosciences & Neurology, Action observation, Motor resonance, MEPs, Videos, F5c, TRANSCRANIAL MAGNETIC STIMULATION, VENTRAL PREMOTOR CORTEX, OBJECT-DRIVEN GRASP, CORTICOSPINAL EXCITABILITY, MIRROR NEURONS, HAND ACTIONS, SURROUND INHIBITION, MACAQUE MONKEY, FACILITATION, HUMANS
note: © 2016 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
abstract: Motor resonance is the modulation of M1 corticospinal excitability induced by observation of others' actions. Recent brain imaging studies have revealed that viewing videos of grasping actions led to a differential activation of the ventral premotor cortex depending on whether the entire person is viewed versus only their disembodied hand. Here we used transcranial magnetic stimulation (TMS) to examine motor evoked potentials (MEPs) in the first dorsal interosseous (FDI) and abductor digiti minimi (ADM) during observation of videos or static images in which a whole person or merely the hand was seen reaching and grasping a peanut (precision grip) or an apple (whole hand grasp). Participants were presented with six visual conditions in which visual stimuli (video vs static image), view (whole person vs hand) and grasp (precision grip vs whole hand grasp) were varied in a 2 × 2 × 2 factorial design. Observing videos, but not static images, of a hand grasping different objects resulted in a grasp-specific interaction, such that FDI and ADM MEPs were differentially modulated depending on the type of grasp being observed (precision grip vs whole hand grasp). This interaction was present when observing the hand acting, but not when observing the whole person acting. Additional experiments revealed that these results were unlikely to be due to the relative size of the hand being observed. Our results suggest that observation of videos rather than static images is critical for motor resonance. Importantly, observing the whole person performing the action abolished the grasp-specific effect, which could be due to a variety of PMv inputs converging on M1.
date: 2016-11-01
date_type: published
publisher: ELSEVIER MASSON
official_url: http://dx.doi.org/10.1016/j.cortex.2016.09.002
oa_status: green
full_text_type: pub
language: eng
primo: open
primo_central: open_green
article_type_text: Article
verified: verified_manual
elements_id: 1181689
doi: 10.1016/j.cortex.2016.09.002
language_elements: English
lyricists_name: Bunday, Karen
lyricists_name: Davare, Marco
lyricists_name: Kilner, James
lyricists_name: Lemon, Roger
lyricists_id: KBUND89
lyricists_id: MDAVA99
lyricists_id: JMKIL68
lyricists_id: RNLEM52
actors_name: Barczynska, Patrycja
actors_id: PBARC91
actors_role: owner
full_text_status: public
publication: Cortex
volume: 84
pagerange: 43-54
pages: 12
issn: 0010-9452
citation:        Bunday, KL;    Lemon, RN;    Kilner, JM;    Davare, M;    Orban, GA;      (2016)    Grasp-specific motor resonance is influenced by the visibility of the observed actor.                   Cortex , 84    pp. 43-54.    10.1016/j.cortex.2016.09.002 <https://doi.org/10.1016/j.cortex.2016.09.002>.       Green open access   
 
document_url: https://discovery.ucl.ac.uk/id/eprint/1519888/1/1-s2.0-S0010945216302349-main.pdf