Development of approach and inhibition in the first year: Parallel findings from motor behavior, temperament ratings and directional cardiac response

Samuel P. Putnam, Cynthia A. Stifter

Research output: Contribution to journalArticle

30 Scopus citations

Abstract

A group of 139 infants was observed at 6 and 12 months. Approach and inhibition were measured via latencies to touch low-and high-intensity objects, directional cardiac response to low- and high-intensity sounds and maternal ratings of positive and fearful emotionality. Inhibition showed considerable increases in all three domains from 6 to 12 months. Also reflecting increases in inhibitory processes, correlations between individual infants' responses to low- and high-intensity sounds were significantly smaller at 12 than at 6 months. Limited cross-domain validity was obtained linking large cardiac decelerations, low latencies to reach for toys and high ratings of positive emotionality. These findings are consistent with previous reports documenting relatively greater gains in inhibition than approach during the second half of the first year Modest cross-domain consistency indicates separate mechanisms may moderate approach and inhibition in the three different realms.

Original languageEnglish (US)
Pages (from-to)441-451
Number of pages11
JournalDevelopmental Science
Volume5
Issue number4
DOIs
StatePublished - Nov 1 2002

All Science Journal Classification (ASJC) codes

  • Developmental and Educational Psychology
  • Cognitive Neuroscience

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