Abstract:
:The ontogeny of associative learning in delay (750-ms conditional stimulus [CS], 650-ms interstimulus interval [ISI]), long-delay (1,350-ms CS, 1,250-ms ISI), and trace (750-ms CS, 500-ms trace interval, 1,250-ms ISI) eyeblink conditioning was examined in 5-month-old human infants and adults. Infants and adults showed different acquisition rates but reached equivalent asymptotes of conditional responses (CRs) in standard delay conditioning. In long-delay and trace conditions, infants exhibited less robust conditioning than adults and minimal ability to appropriately time CRs. During infancy, the ISI, rather than the conditioning procedure, predicted rate and effectiveness of CRs. These findings suggest that higher order cognitive abilities begin emerging early in development. Across ontogeny, however, there are changes in the limits and parameters that support associative learning.
journal_name
Behav Neuroscijournal_title
Behavioral neuroscienceauthors
Herbert JS,Eckerman CO,Stanton MEdoi
10.1037/0735-7044.117.6.1196subject
Has Abstractpub_date
2003-12-01 00:00:00pages
1196-210issue
6eissn
0735-7044issn
1939-0084pii
2003-10460-008journal_volume
117pub_type
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