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What (if anything) can auditory ERPs tell us about the causes of language impairment in children?| old_uid | 3064 |
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| title | What (if anything) can auditory ERPs tell us about the causes of language impairment in children? |
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| start_date | 2007/06/19 |
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| schedule | 15h45 |
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| online | no |
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| summary | For over thirty years there has been debate over whether specific language impairment (SLI) can be explained in terms of an underlying auditory deficit. Although impaired auditory processing has been demonstrated in SLI at the group level on several tasks, there are many children with SLI who don’t have auditory impairments, and other children with auditory impairments who don’t have SLI. One reason why it is hard to evaluate such evidence is because it is difficult to establish reliable thresholds on auditory perceptual tasks in young children, and results may be affected by inattention, poor motivation or task strategy. In the 1990s, the mismatch negativity (MMN) component of the auditory event-related potential was hailed as a complementary method for assessing discrimination that avoided the ambiguities of behavioural tests. Unfortunately, this promise has not been fulfilled, and studies using the MMN have generated highly inconsistent results. In part this may be because of poor reliability of the MMN, and in part because it may be an index of non-perceptual factors, such as underlying brain anatomy. The talk will conclude by outlining some alternative approaches to using auditory ERPs to assess auditory perception in developmental disorders that may have greater reliability at the individual level. |
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| responsibles | Zondervan |
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