Premium
Infant Visual Attention and Stimulus Repetition Effects on Object Recognition
Author(s) -
Reynolds Greg D.,
Richards John E.
Publication year - 2017
Publication title -
child development
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.103
H-Index - 257
eISSN - 1467-8624
pISSN - 0009-3920
DOI - 10.1111/cdev.12982
Subject(s) - stimulus (psychology) , psychology , recognition memory , developmental psychology , cognition , audiology , cognitive psychology , visual perception , event related potential , perception , neuroscience , medicine
This study examined behavioral, heart rate (HR), and event‐related potential (ERP) correlates of attention and recognition memory for 4.5‐, 6‐, and 7.5‐month‐old infants ( N = 45) during stimulus encoding. Attention was utilized as an independent variable using HR measures. The Nc ERP component associated with attention and the late slow wave (LSW) associated with recognition memory were analyzed. The 7.5‐month‐olds demonstrated a significant reduction in Nc amplitude with stimulus repetition. This reduction in Nc was not found for younger infants. Additionally, infants only demonstrated differential LSW amplitude based on stimulus type on attentive trials as defined by HR changes. These findings indicate that from 4.5 to 7.5 months, infants’ attentional engagement is influenced by an increasingly broader range of stimulus characteristics.