ERPs reveal the temporal dynamics of auditory word recognition in specific language impairment.

We used event-related potentials (ERPs) to compare auditory word recognition in children with specific language impairment (SLI group; N=14) to a group of typically developing children (TD group; N=14). Subjects were presented with pictures of items and heard auditory words that either matched or mismatched the pictures. Mismatches overlapped expected words in word-onset (cohort mismatches; see: DOLL, hear: dog), rhyme (CONE -bone), or were unrelated (SHELL -mug).

Electrophysiological indices of phonological impairments in dyslexia.

Purpose: A range of studies have shown difficulties in perceiving acoustic and phonetic information in dyslexia; however, much less is known about how such difficulties relate to the perception of individual words. The authors present data from event-related potentials (ERPs) examining the hypothesis that children with dyslexia have difficulties with processing phonemic information within spoken words compared to age-matched readers with typical development.

Method: The authors monitored ERPs to auditory words during a simple picture-word matching task.

Modulation of brain regions involved in word recognition by homophonous stimuli: an fMRI study.

We used rapid event-related fMRI to explore factors modulating the activation of orthographic and phonological representations of print during a visual lexical decision task. Stimuli included homophonous word and nonword stimuli (MAID, BRANE), which have been shown behaviorally to produce longer response times due to phonological mediation effects. We also manipulated participants' reliance on orthography by varying the extent to which nonword foils were orthographically typical (wordlike context) or atypical (non-wordlike context) of real words.

Investigating the time course of spoken word recognition: electrophysiological evidence for the influences of phonological similarity.

Behavioral and modeling evidence suggests that words compete for recognition during auditory word identification, and that phonological similarity is a driving factor in this competition. The present study used event-related potentials (ERPs) to examine the temporal dynamics of different types of phonological competition (i.e.

Mismatch negativity reflects sensory and phonetic speech processing.

We examined phonetic and sensory processes in speech perception using mismatch negativity, an event-related potential component congruent with discrimination, but which occurs for unattended stimuli. Adult listeners (N=16) heard a repeated standard (the syllable 'da') that was interrupted infrequently by a phonetically different 'deviant' syllable ('ba'). The acoustic difference between standard and deviant was manipulated to create both acoustically Strong and Weak deviant stimuli.

Determining the role of phonology in silent reading using event-related brain potentials.

The goal of the present study was to delineate phonology's role in silent reading using event-related brain potential (ERP) techniques. Terminal endings of high cloze sentences were manipulated in four conditions in which the terminal word was: (1) the high cloze ending and thus orthographically, phonologically and semantically congruent (e.g.