Abstract：
:Interference between concurrent tasks was used to investigate the brain basis of capacity limitations apparent when children encode information. Seventy-three right-handed children in Grades 1-4 engaged in speeded unilateral finger tapping while encoding a variable number of faces or numbers for subsequent recognition testing. With both face and number encoding, tapping rate decreased as memory load increased. Encoding numbers was more disruptive than encoding faces. Both encoding tasks slowed right-hand tapping more than left-hand tapping, relative to control tapping performance, but had only a bilateral effect on the variability of tapping. Although overall interference was less than that observed with a comparison task (i.e., speaking), the asymmetry of interference was comparable. The results suggest that cerebral lateralization for memory encoding, as well as for speech, is constant across the age range of 6-10 years. Findings regarding developmental change in overall capacity, however, are task specific: interference from speaking but not from memory encoding decreases with increasing age.
journal_name
Brain Cognjournal_title
Brain and cognitionauthors
Hiscock M,Kinsbourne M,Samuels M,Krause AEdoi
10.1016/0278-2626(87)90044-3subject
Has Abstractpub_date
1987-01-01 00:00:00pages
24-40issue
1eissn
0278-2626issn
1090-2147journal_volume
6pub_type
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