Development of motion speed perception from infancy to early adulthood: a high-density EEG study of simulated forward motion through optic flow.

ABSTRACT: This study investigated evoked and oscillatory brain activity in response to forward visual motion at three different ecologically valid speeds, simulated through an optic flow pattern consisting of a virtual road with moving poles at either side of it. Participants were prelocomotor infants at 4-5 months, crawling infants at 9-11 months, primary school children at 6 years, adolescents at 12 years, and young adults. N2 latencies for motion decreased significantly with age from around 400 ms in prelocomotor infants to 325 ms in crawling infants, and from 300 and 275 ms in 6- and 12-year-olds, respectively, to 250 ms in adults. Infants at 4-5 months displayed the longest latencies and appeared unable to differentiate between motion speeds. In contrast, crawling infants at 9-11 months and 6-y

SUBMITTER: Rasulo S 

PROVIDER: S-EPMC8536648 | biostudies-literature | 2021 Oct

REPOSITORIES: biostudies-literature