attention attentionininfants autismspectrumdisordersinchildren child childdevelopment childdevelopmentdisorders childrearing children childrenandadults cognition cognitionininfants communication communicativecompetence crying cryingininfants developmentalpsychology earlychildhoodeducation imitationinchildren imitativebehavior infant infantpsychology infants interpersonalcommunication interpersonalcommunicationinchildren language languagedevelopment nonverbalcommunicationinchildren nonverbalcommunicationininfants pervasive psychology socialperception socialperceptionininfants speech therapy