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Developmental changes in infants’ visual short-term memory for location
Ist Teil von
Cognition, 2011-03, Vol.118 (3), p.293-305
Ort / Verlag
Amsterdam: Elsevier B.V
Erscheinungsjahr
2011
Quelle
Access via ScienceDirect (Elsevier)
Beschreibungen/Notizen
To examine the development of visual short-term memory (VSTM) for location, we presented 6- to 12-month-old infants (
N
=
199) with two side-by-side stimulus streams. In each stream, arrays of colored circles continually appeared, disappeared, and reappeared. In the
changing stream, the location of one or more items changed in each cycle; in the
non-changing streams the locations did not change. Eight- and 12.5-month-old infants showed evidence of memory for multiple locations, whereas 6.5-month-old infants showed evidence of memory only for a single location, and only when that location was easily identified by salient landmarks. In the absence of such landmarks, 6.5-month-old infants showed evidence of memory for the overall configuration or shape. This developmental trajectory for spatial VSTM is similar to that previously observed for color VSTM. These results additionally show that infants’ ability to detect changes in location is dependent on their developing sensitivity to spatial reference frames.