Visual and tactile integration in action comprehension and execution

Kritikos, Ada and Brasch, Cecily (2008) Visual and tactile integration in action comprehension and execution. Brain Research, 1242 73-86. doi:10.1016/j.brainres.2008.04.081


Author Kritikos, Ada
Brasch, Cecily
Title Visual and tactile integration in action comprehension and execution
Journal name Brain Research   Check publisher's open access policy
ISSN 0006-8993
1872-6240
Publication date 2008-11-25
Year available 2008
Sub-type Article (original research)
DOI 10.1016/j.brainres.2008.04.081
Volume 1242
Start page 73
End page 86
Total pages 14
Editor John Foxe
David Alais
Place of publication Netherlands, Amsterdam
Publisher Elsevier BV
Language eng
Subject C1
170299 Cognitive Science not elsewhere classified
170101 Biological Psychology (Neuropsychology, Psychopharmacology, Physiological Psychology)
Abstract Humans rely on the integration of information from multiple sensory modalities to interact successfully with their environment. In the present series of studies, we investigated how the visuomotor system integrates congruent and incongruent visual and tactile sensory inputs for goal-directed action comprehension and execution. Specifically, we investigated whether orienting of attention towards vision, touch, or both vision and touch enhances the impact of one modality over another. In Experiment 1 participants were presented with visual (on a computer monitor) and/or tactile (in unseen left hand) sensory inputs of an action, and made button-press responses to categorise it as ‘wide’ or ‘narrow’. Responses were significantly faster when attending to vision compared with touch, and faster in fully congruent compared with grasp congruent and incongruent conditions. Thus, both vision and touch are significant in action comprehension, but visual inputs are in general more influential than tactile inputs. Moreover, responses to wide grasp actions were significantly faster than to narrow-grasp actions. In Experiment 2 the same task was performed but the participants made reach-to-grasp movements, recorded with ProReflex motion capture system. Although actions to wide objects produced wider peak grasp overall than to a narrow object, in contrast to action comprehension, there was no systematic effect of attended modality or tactile input in action execution. We speculate that action comprehension and execution utilize visual and tactile inputs differentially.
Keyword Visuo-tactile integration
Action comprehension
Action execution
Kinematic parameters
Q-Index Code C1
Q-Index Status Confirmed Code

Document type: Journal Article
Sub-type: Article (original research)
Collections: 2009 Higher Education Research Data Collection
School of Psychology Publications
 
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Created: Fri, 20 Mar 2009, 02:29:49 EST by Lucy O'Brien on behalf of Faculty of Social & Behavioural Sciences