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Isolating neural indices of continuous speech processing at the phonetic level| old_uid | 15685 |
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| title | Isolating neural indices of continuous speech processing at the phonetic level |
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| start_date | 2015/05/27 |
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| schedule | 15h-17h |
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| online | no |
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| location_info | 2e étage, salle 235A |
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| summary | That cortical sensory systems are organized in a hierarchical fashion is reasonably well established. In the context of human speech it has been suggested that such an organization could explain how acoustically variable inputs can be perceived as categorical speech units. Recent efforts to study this topic with noninvasive neural recordings have mostly focused on neural indices related to the amplitude envelope of speech. In this talk, I will introduce a method for indexing the neurophysiology of such hierarchical processing in the context of continuous speech. In doing so, I will show that EEG is sensitive not just to the low-level acoustic properties of speech, but also to higher-level phonemic aspects of this most important of signals. I will also introduce a second experiment aimed at disentangling low-level neural activity from that relating to phonetic feature processing. Preliminary results from this experiment suggest that a dependent measure of speech processing at the phonetic level can be derived using non-invasive, low frequency EEG. |
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| responsibles | <not specified> |
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