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Abstract:
Abstract: substantial literature exists linking auditory
temporal processing abilities (ATP; processing of rapidly changing
auditory cues critical to speech perception) to developmental
language impairment (LI). In our lab a series of longitudinal
studies have demonstrated links among infant perceptual-cognitive
abilities and ATP thresholds, and later language. The issue of
which neural substrates are involved in such abilities has mainly
been addressed via focal lesion models in young non-human and human
primates. However, another promising technique involves
event-related potentials (ERPs) or transient voltage oscillations
that occur in the brain in response to discrete events. ERP's can
be recorded noninvasively via scalp electrodes and allow one to
monitor, with a resolution of milliseconds, the time course of
cognitive events. Findings will be discussed from a combined
behavioral-electrophysiological approach to these issues which
examines ATP in infants with and without a family history of
LI.
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