Electrophysiological Evidence for Sentence Comprehension - Wings
Electrophysiological Evidence for Sentence Comprehension - Wings
Electrophysiological Evidence for Sentence Comprehension - Wings
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the changes in language related components (or auditory perception related components)<br />
in the population of children with SLI (e.g. Ors et al. 2002, McArthur & Bishop, 2005).<br />
The results of these research falls into two groups regarding the possible explanation of<br />
SLI; while research oriented towards infants (age 5 months) at-risk revealed differences<br />
in the mismatch negativity (MMN), in experiments per<strong>for</strong>med by McArthur and Bishop<br />
on SLI children (age around 13) a difference in N1-P2-N2 components were found. As<br />
the MMN can be related to memory trace processes (Näätänen et al., 2005), this could<br />
lead to memory-based explanation of SLI. McArthur and Bishop’s findings speak in<br />
favor of the deficit in rapid auditory stimuli processing as well as the findings in the Ors<br />
et al. (2002) in which a delay in P300 latency <strong>for</strong> auditory stimuli in parents of SLI<br />
children was found. However, these findings are not conclusive: they are all restricted<br />
either to non-language stimuli (tones of different frequencies or spectrum) or very simple<br />
language stimuli suitable <strong>for</strong> the oddball paradigm (syllables, <strong>for</strong> example). A paradigm<br />
with sentences was used in an experiment by Heather van der Lely (van der Lely &<br />
Fonteneau, 2003). She claimed that instead of syntax related LAN and P600, SLI children<br />
showed difference in N400. This would amount to some sort of asyntactic comprehension<br />
that would be a characteristic of her controversial G-SLI group. In a study by Kaan et al.<br />
(2000) a well known difficulty with filler-gap constructions was examined and a<br />
significantly latter onset of the P600 was found in children with developmental language<br />
impairment.<br />
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