The Adaptive Auditory Mind: Role of Rapid Plasticity and Temporal Coherence in Auditory Scene Analysis
Abstract
The fundamental idea for this project is that a rapid-adaptive process alters neuronal circuits and selectivity during the perception of sound, and that this plasticity is enhanced by the existence of a temporally coherent structure in the acoustic stimuli. There are 3 main aims for this study. The first uses ambiguous percepts to determine how auditory processing rapidly adapts by acoustic contexts. Shepard tones will be used to see how pitch can be developed in human listeners. The neural correlates will be evaluated using MEG measurements. The PI will also determine theory of rapid plasticity and come up with computational models for the plasticity. The second aim is stimulus coherence in pattern formation. The thought being temporal coherence of stimulus enables rapid plasticity which provides binding to create the percept of a single auditory object. The PI will study, via MEG physiology for rapid plasticity, the relationship between coherence, auditory object formation and persistence/memory. Computational models will be developed from these results. The third aim ties it all together, computational models with complex signals that incorporate rapid plasticity and binding of complex spectotemporal (phonemes, syllables, musical chords) patterns.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Mar 23, 2016
- Source ID
- FA95501610036
Entities
People
- Shihab A Shamma
Organizations
- Air Force Office of Scientific Research
- United States Air Force
- University of Maryland