Abstract
Recent studies have shown that articulatory gestures are systematically associated with specific manual grip actions. Here we show that executing such actions can influence performance on a speech-categorization task. Participants watched and/or listened to speech stimuli while executing either a power or a precision grip. Grip performance influenced the syllable categorization by increasing the proportion of responses of the syllable congruent with the executed grip (power grip-[ke] and precision grip-[te]). Two follow-up experiments indicated that the effect was based on action-induced bias in selecting the syllable.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Acoustic Stimulation
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Adult
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Color
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Cues
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Female
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Functional Laterality
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Gestures
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Hand / innervation
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Hand Strength / physiology*
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Humans
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Mirror Neurons / physiology
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Models, Neurological
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Models, Psychological
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Motor Activity / physiology
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Motor Cortex / physiology
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Muscle Strength
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Nerve Net / physiology*
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Phonetics
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Photic Stimulation
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Psychomotor Performance / physiology*
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Reaction Time / physiology
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Speech Perception / physiology*
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Tongue / innervation
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Young Adult
Grants and funding
This work was supported by the Academy of Finland (
http://www.aka.fi/) under Grant 1265610, reveived by MV. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.