Nonverbal visual short-term memory as a function of age and dimensionality in learning-disabled children.
A serial recognition task was used to compare performance of 2 learning disability age groups with 2- and 3-dimensional representations of nonlabeled 8-point random shapes. Age-related increases in short-term memory (STM) performance for both dimensions were found. No significant differences were found between 2- or 3-dimensional stimuli. Contrary to reports of STM performance with normal children, learning-disabled children showed no primacy effect for the 2-dimensional treatment, and second choices were not consistently correct when the first choice was incorrect, These findings were interpreted according to Flavell's notions of mediational inefficiencies.
D000367:Age Factors; D002648:Child; D003867:Depth Perception; D005260:Female; D005556:Form Perception; D006801:Humans; D007257:Information Theory; D007859:Learning Disabilities / Q000150:complications*; D008297:Male; D008570:Memory, Short-Term; D012691:Serial Learning; D014796:Visual Perception