Desynchronization in EEG during perception of means-end actions and relations with infants' grasping skill.

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    • Subject Terms:
      MOTOR ability in infants; SENSORY perception; INFANT development; INFANTS; ELECTROENCEPHALOGRAPHY; BRAIN physiology; TOUCH -- Psychological aspects; ANALYSIS of variance; CONFIDENCE intervals; PSYCHOLOGY of movement; RESEARCH funding; TASK performance; DATA analysis software; DESCRIPTIVE statistics; ODDS ratio
    • Abstract:
      The current study examined age‐related differences in electroencephalogram (EEG) activity during perception of means‐end actions and production of grasps, and how EEG activity may relate to infants' motor competence. We collected data from 9‐ and 12‐month‐old infants during perception of means‐end actions made with a tool and during execution of their own grasps. We computed event‐related desynchronization (ERD) during perception and production events and assessed infants' reach‐grasp competence by looking at their latency to complete grasps. Although we found greater ERD during perception of means‐end actions in 9‐month‐olds compared with 12‐month‐olds, we found the relation between ERD during perception and emerging reach‐grasp competence to be specific for 12‐month‐olds and not for 9‐month‐olds. These results provide evidence for an emerging neural system that supports the coupling of action and perception with infants' emerging motor competence in the first year of life. [ABSTRACT FROM AUTHOR]
    • Abstract:
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