Postural, Visual, and Manual Coordination in the Development of Prehension

Jaya Rachwani, Orit Herzberg, Laura Golenia, Karen E. Adolph

Research output: Contribution to journalArticle

Abstract

We investigated the real-time cascade of postural, visual, and manual actions for object prehension in 38 6- to 12-month-old infants (all independent sitters) and eight adults. Participants’ task was to retrieve a target as they spun past it at different speeds on a motorized chair. A head-mounted eye tracker recorded visual actions and video captured postural and manual actions. Prehension played out in a coordinated sequence of postural–visual–manual behaviors starting with turning the head and trunk to bring the toy into view, which in turn instigated the start of the reach. Visually fixating the toy to locate its position guided the hand for toy contact and retrieval. Prehension performance decreased at faster speeds, but quick planning and implementation of actions predicted better performance.

Original languageEnglish (US)
Pages (from-to)1559-1568
Number of pages10
JournalChild development
Volume90
Issue number5
DOIs
StatePublished - Sep 1 2019

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ASJC Scopus subject areas

  • Pediatrics, Perinatology, and Child Health
  • Education
  • Developmental and Educational Psychology

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