title: Motor System Activation Predicts Goal Imitation in 7-Month-Old Infants.
abstract: The current study harnessed the variability in infants' neural and behavioral responses as a novel method for evaluating the potential relations between motor system activation and social behavior. We used electroencephalography (EEG) to record neural activity as 7-month-old infants observed and responded to the actions of an experimenter. To determine whether motor system activation predicted subsequent imitation behavior, we assessed event-related desynchronization (ERD) at central sites during action observation as a function of subsequent behavior. Greater mu desynchronization over central sites was observed when infants subsequently reproduced the experimenter's goal than when they did not reproduce the goal and instead selected the nongoal object. We also found that mu desynchronization during action execution predicted the infants' later propensity to reproduce the experimenter's goal-directed behavior. These results provide the first evidence that motor system activation predicts the imitation of other individuals' goals during infancy.
authors.affiliation: Department of Psychology, University of Chicago cfilippi@uchicago.edu.
authors.forename: Courtney A
authors.initials: CA
authors.lastname: Filippi
authors.affiliation: Human Development and Quantitative Methodology, University of Maryland, College Park.
authors.forename: Erin N
authors.initials: EN
authors.lastname: Cannon
authors.affiliation: Human Development and Quantitative Methodology, University of Maryland, College Park.
authors.forename: Nathan A
authors.initials: NA
authors.lastname: Fox
authors.affiliation: Human Development and Quantitative Methodology, University of Maryland, College Park.
authors.forename: Samuel G
authors.initials: SG
authors.lastname: Thorpe
authors.affiliation: Department of Neuroscience, University of Parma.
authors.forename: Pier F
authors.initials: PF
authors.lastname: Ferrari
authors.affiliation: Department of Psychology, University of Chicago.
authors.forename: Amanda L
authors.initials: AL
authors.lastname: Woodward
mesh_terms: D001931:Brain Mapping / Q000379:methods; D003071:Cognition / Q000502:physiology; D004569:Electroencephalography / Q000379:methods; D005260:Female; D006040:Goals; D006801:Humans; D007100:Imitative Behavior / Q000502:physiology*; D007223:Infant; D018730:Infant Behavior / Q000502:physiology*; D008297:Male; D059167:Mirror Neurons / Q000502:physiology; D009048:Motor Skills / Q000502:physiology*; D011597:Psychomotor Performance / Q000502:physiology*; D012919:Social Behavior
keywords: imitation; infancy; neural mirroring; social cognition