Anticipatory reaching of seven- to eleven-month-old infants in occlusion situations

  1. van Wermeskerken, M. 4
  2. van der Kamp, J. 34
  3. Te Velde, Arenda F. 1
  4. Valero-Garcia, A.V. 4
  5. Hoozemans, M.J.M. 4
  6. Savelsbergh, G.J.P. 24
  1. 1 Universidad de Murcia
    info

    Universidad de Murcia

    Murcia, España

    ROR https://ror.org/03p3aeb86

  2. 2 Manchester Metropolitan University
    info

    Manchester Metropolitan University

    Mánchester, Reino Unido

    ROR https://ror.org/02hstj355

  3. 3 University of Hong Kong
    info

    University of Hong Kong

    Hong Kong, Hong Kong

    ROR https://ror.org/02zhqgq86

  4. 4 VU University Amsterdam
    info

    VU University Amsterdam

    Ámsterdam, Holanda

    ROR https://ror.org/008xxew50

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Zeitschrift:
Infant Behavior and Development

ISSN: 0163-6383

Datum der Publikation: 2011

Ausgabe: 34

Nummer: 1

Seiten: 45-54

Art: Artikel

DOI: 10.1016/J.INFBEH.2010.09.005 PMID: 21036402 SCOPUS: 2-s2.0-79451469811 GOOGLE SCHOLAR

Andere Publikationen in: Infant Behavior and Development

Zusammenfassung

The present study examined 7- to 11-month-old infants' anticipatory and reactive reaching for temporarily occluded objects. Infants were presented with laterally approaching objects that moved at different velocities (10, 20, and 40. cm/s) in different occlusion situations (no-, 20. cm-, and 40. cm-occlusion), resulting in occlusion durations ranging between 0 and 4. s. Results show that except for object velocity and occlusion distance, occlusion duration was a critical constraint for infants' reaching behaviors. We found that the older infants reached more often, but that an increase in occlusion duration resulted in a decline in reaching frequency that was similar across age groups. Anticipatory reaching declined with increasing occlusion duration, but the adverse effects for longer occlusion durations diminished with age. It is concluded that with increasing age infants are able to retain and use information to guide reaching movements over longer periods of non-visibility, providing support for the graded representation hypothesis (Jonsson & von Hofsten, 2003) and the two-visual systems model (Milner & Goodale, 1995). © 2010 Elsevier Inc.