Speaker: Keith R. Kluender, PhD, Professor, Department of Psychology, University of Wisconsin-Madison
Title: Speech perception as efficient coding
Time: Friday, 18 September, 4pm
Place: Singleton Auditorium, 46-3002
Abstract:
Fundamental principles that govern all perception, from transduction to cortex,
are shaping our understanding of perception of speech and other familiar
sounds. Here, ecological and sensorineural considerations are proposed in
support of an information-theoretical approach to speech perception.
Optimization of information transmission and efficient coding are emphasized in
explanations of classic characteristics of speech perception, including:
perceptual resilience to signal degradation; variability across changes in
listening environment, rate, and talker; categorical perception; and, word
segmentation. Experimental findings will be used to illustrate how a series of like
processes operate upon the acoustic signal with increasing levels of
sophistication on the way from waveforms to words. Common to these
processes are ways that perceptual systems absorb predictable characteristics
of the soundscape, from temporally local (adaptation) to extended periods
(learning), and sensitivity to new information is enhanced. [Supported by NIDCD]
For more info: http://mit.edu/bcs/newsevents/colloquia.shtml