Does comprehension of symbolic gestures and corresponding-in-meaning words make use of motor simulation?

Giovanna Cristina Campione, Elisa De Stefani, Alessandro Innocenti, Doriana De Marco, Patricia M. Gough, Giovanni Buccino, Maurizio Gentilucci

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

The present study aimed at determining whether or not the comprehension of symbolic gestures, and corresponding-in-meaning words, makes use of cortical circuits involved in movement execution control. Participants were presented with videos of an actress producing meaningful or meaningless gestures, pronouncing corresponding-in-meaning words or pseudo-words; they were required to judge whether the signal was meaningful or meaningless. Single pulse TMS was applied to forearm primary motor cortex area 150-200. ms after the point when the stimulus meaning could be understood. MEPs were significantly greater when processing meaningless signals as compared to a baseline condition presenting a still-and-silent actress. In contrast, this was not the case for meaningful signals whose motor activation did not differ from that for the baseline stimulus. MEPs were significantly greater for meaningless than meaningful signals and no significant difference was found between gesture and speech. On the basis of these results, we hypothesized that the observation-of/listening-to meaningless signals recruits motor areas. In contrast, this did not occur when the signals were meaningful. Overall, the data suggest that the processes related to comprehension of symbolic gestures and communicative words do not involve primary motor area and probably use brain areas involved in semantics.

Original languageEnglish
Pages (from-to)297-301
Number of pages5
JournalBehavioural Brain Research
Volume259
DOIs
Publication statusPublished - Feb 1 2014

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Gestures
Motor Cortex
Semantics
Forearm
Observation
Brain

Keywords

  • Communicative word
  • Meaningful intransitive gesture
  • Meaningless gesture
  • Primary motor cortex (M1)
  • Pseudo-word
  • Transcranial magnetic stimulation (TMS)

ASJC Scopus subject areas

  • Behavioral Neuroscience

Cite this

Does comprehension of symbolic gestures and corresponding-in-meaning words make use of motor simulation? / Campione, Giovanna Cristina; De Stefani, Elisa; Innocenti, Alessandro; De Marco, Doriana; Gough, Patricia M.; Buccino, Giovanni; Gentilucci, Maurizio.

In: Behavioural Brain Research, Vol. 259, 01.02.2014, p. 297-301.

Research output: Contribution to journalArticle

Campione, Giovanna Cristina ; De Stefani, Elisa ; Innocenti, Alessandro ; De Marco, Doriana ; Gough, Patricia M. ; Buccino, Giovanni ; Gentilucci, Maurizio. / Does comprehension of symbolic gestures and corresponding-in-meaning words make use of motor simulation?. In: Behavioural Brain Research. 2014 ; Vol. 259. pp. 297-301.
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