title: Selective Influences of Precision and Power Grips on Speech Categorization.
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.
authors.affiliation: Division of Cognitive and Neuropsychology, Institute of Behavioural Sciences, University of Helsinki, Helsinki, Finland.
authors.forename: Mikko
authors.initials: M
authors.lastname: Tiainen
authors.affiliation: Division of Cognitive and Neuropsychology, Institute of Behavioural Sciences, University of Helsinki, Helsinki, Finland.
authors.forename: Kaisa
authors.initials: K
authors.lastname: Tiippana
authors.affiliation: Phonetics and Speech Synthesis Research Group, Institute of Behavioural Sciences, University of Helsinki, Helsinki, Finland.
authors.forename: Martti
authors.initials: M
authors.lastname: Vainio
authors.affiliation: Division of Cognitive and Neuropsychology, Institute of Behavioural Sciences, University of Helsinki, Helsinki, Finland.
authors.forename: Tarja
authors.initials: T
authors.lastname: Peromaa
authors.affiliation: Division of Cognitive and Neuropsychology, Institute of Behavioural Sciences, University of Helsinki, Helsinki, Finland.
authors.forename: Naeem
authors.initials: N
authors.lastname: Komeilipoor
authors.affiliation: Division of Cognitive and Neuropsychology, Institute of Behavioural Sciences, University of Helsinki, Helsinki, Finland.
authors.forename: Lari
authors.initials: L
authors.lastname: Vainio
mesh_terms: D000161:Acoustic Stimulation; D000328:Adult; D003116:Color; D003463:Cues; D005260:Female; D007839:Functional Laterality; D005868:Gestures; D006225:Hand / Q000294:innervation; D018737:Hand Strength / Q000502:physiology*; D006801:Humans; D059167:Mirror Neurons / Q000502:physiology; D008959:Models, Neurological; D008960:Models, Psychological; D009043:Motor Activity / Q000502:physiology; D009044:Motor Cortex / Q000502:physiology; D053580:Muscle Strength; D009415:Nerve Net / Q000502:physiology*; D010700:Phonetics; D010775:Photic Stimulation; D011597:Psychomotor Performance / Q000502:physiology*; D011930:Reaction Time / Q000502:physiology; D013067:Speech Perception / Q000502:physiology*; D014059:Tongue / Q000294:innervation; D055815:Young Adult