6533b81ffe1ef96bd1278707
RESEARCH PRODUCT
Embodiment and the origin of interval timing : kinematic and electromyographic data
Elizabeth ThomasDenis MareschalLilian FautrelleCaspar AddymanRobert M. FrenchSinead Rochasubject
Malemedicine.medical_specialtyNeuroscience(all)Overt behaviorResponse period[ SCCO.PSYC ] Cognitive science/PsychologyKinematicsElectromyographyMotor Activity050105 experimental psychologyTask (project management)psyc03 medical and health sciencesEmbodimentChild Development0302 clinical medicinePhysical medicine and rehabilitationOpen DatamedicineHumansLearning0501 psychology and cognitive sciencesMuscle SkeletalCommunicationmedicine.diagnostic_testbusiness.industryElectromyography[SCCO.NEUR]Cognitive science/NeuroscienceGeneral Neuroscience05 social sciencesAction controlAge FactorsInfantInterval timingInterval (music)Open Materials[SCCO.PSYC]Cognitive science/Psychology[ SCCO.NEUR ] Cognitive science/NeuroscienceArmFemalebusinessPsychologyInfants030217 neurology & neurosurgeryMuscle ContractionResearch Articledescription
International audience; Recent evidence suggests that interval timing (the judgment of durations lasting from approximately 500 ms. to a few minutes) is closely coupled to the action control system. We used surface electromyography (EMG) and motion capture technology to explore the emergence of this coupling in 4-, 6-, and 8-month-olds. We engaged infants in an active and socially relevant arm-raising task with seven cycles and response period. In one condition, cycles were slow (every 4 s); in another, they were fast (every 2 s). In the slow condition, we found evidence of time-locked sub-threshold EMG activity even in the absence of any observed overt motor responses at all three ages. This study shows that EMGs can be a more sensitive measure of interval timing in early development than overt behavior.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2016-12-09 |