Abstract:
:We recorded event-related potentials (ERPs) in 2-month-old infants in two different states of alertness: awake and asleep. Syllables varying in vowel duration (long vs short) were presented in an oddball paradigm, known to elicit a mismatch brain response. ERPs of both groups showed a mismatch response reflected in a positivity followed by a frontal negativity. While the positivity was present as a function of the stimulus type (present for long deviants only), the negativity varied as a function of the state of alertness (present for awake infants only). These data indicate a functional separation between precognitive and cognitive aspects of duration mismatch essential for the distinction between long and short vowels during early infancy.
journal_name
Neuroreportjournal_title
Neuroreportauthors
Friederici AD,Friedrich M,Weber Cdoi
10.1097/00001756-200207190-00006subject
Has Abstractpub_date
2002-07-19 00:00:00pages
1251-4issue
10eissn
0959-4965issn
1473-558Xjournal_volume
13pub_type
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