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Dev Psychol. 2004 Sep;40(5):836-51.

Development of visuospatial short-term memory in the second half of the 1st year.

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1
Department of Psychology, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599-3366, USA. kpelphre@email.unc.edu

Abstract

Eighty 5.5- to 12.5-month-old infants participated in 4 delayed-response procedures challenging shortterm visuospatial memory (STVM), 2 that varied the time between presentation and search and 2 that varied the number of locations. Within each type of challenge, 1 task required a gaze response and 1 required a reach response. There was little improvement in STVM performance from 5.5 to 8 months and linear improvement in the percentage correct from 8 to 12 months, with overall STVM performance accounting for 66% of the variance in age. Improvement in searching multiple locations lagged behind improvement in spanning longer delays. Memory scores did not vary for the visual and manual tasks. Perseveration was greatest for reach responses, increased with challenge, and decreased with age. ((c) 2004 APA, all rights reserved)

PMID:
15355170
DOI:
10.1037/0012-1649.40.5.836
[Indexed for MEDLINE]
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