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Please use this identifier to cite or link to this item:
http://hdl.handle.net/1903/8307
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| Title: | Hearing VS. Listening: Attention Changes the Neural Representations of Auditory Percepts |
| Authors: | xiang, juanjuan |
| Advisors: | Simon, Jonathan Z. |
| Department/Program: | Electrical Engineering |
| Type: | Dissertation |
| Sponsors: | Digital Repository at the University of Maryland
University of Maryland (College Park, Md.) |
| Keywords: | 0544
Engineering, Electronics and Electrical
0317
Biology, Neuroscience
0633
Psychology, Cognitive
MEG, auditory cortex, attention, , scene analysis, neural representation |
| Issue Date: | 1-May-2008 |
| Abstract: | Making sense of acoustic environments is a challenging task. At any moment, the signals from distinct auditory sources arrive in the ear simultaneously, forming an acoustic mixture. The brain must represent distinct auditory objects in this complex scene and prioritize processing of relevant stimuli while maintaining the capability to react quickly to unexpected events. The present studies explore neural representations of temporal modulations and the effects of attention on these representations. Temporal modulation plays a significant role in speech perception and auditory scene analysis. To uncover how temporal modulations are processed and represented is potentially of great importance for our general understanding of the auditory system.
Neural representations of compound modulations were investigated by magnetoencephalography (MEG). Interaction components are generated by near rather than distant modulation rhythms, suggesting band-limited modulation filter banks operating in ... |
| URI: | http://hdl.handle.net/1903/8307 |
| Appears in Collections: | Electrical & Computer Engineering Theses and Dissertations
UM Theses and Dissertations
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Size | Format | No. of Downloads |
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| umi-umd-5328.pdf | | 1277Kb | Adobe PDF | 77 | View/Open |
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