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Abstract:
Using event-related potentials (ERPs) we examined infants'
memories for 2-step event sequences immediately after exposure and
after one week. On each of two consecutive days, 10-month-old
infants watched as an experimenter used props to demonstrate three
novel 2-step action sequences. Immediately following the second
exposure, ERPs were recorded from 32 channels as infants saw
pictures from one action sequence to which they had been exposed
(familiar sequence) interspersed with pictures from one novel
sequence. To examine long-term recognition memory, the procedure
was repeated after a one-week delay. In the analyses we will
compare ERPs for familiar and novel sequences, thereby assessing
recognition memory. As well, we are interested in how processing of
familiar and novel stimuli change across a week delay, possibly
reflecting memory consolidation. Data collection is underway, as
part of a larger ongoing study of 9- to 11-month-olds' memories for
sequences using ERPs and behavior.
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