Individual differences in how infants change behaviours from spontaneous to instrumental.

ABSTRACT: Young infants can change their behaviour and learn through interactions with novel environments. This ability has been demonstrated through group-averaged analyses. However, it remains unclear whether averaged behavioural changes accurately capture the diverse changes occurring at the individual level. To address this, we measured limb movement alterations in 185 infants aged 2 to 3 months before and after their arm was tethered to an overhead mobile and analysed individual differences in addition to conventional group analyses. While the group-averaged data showed a gradual increase in arm movements, individual learning curves rarely exhibited such simple gradual increases and instead displayed more complex patterns. To disentangle the complex movement patterns, we applied time-series clu

SUBMITTER: Fujihira R 

PROVIDER: S-EPMC12635129 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature