Seminars in Hearing Research at Purdue (SHRP)

Date: Thursday, October 21, 2021

Time: 10:30 – 11:20 am

Location: LYLE 1150

Speaker: Andrew Sivaprakasam, MD/PhD (MSTP) program, Weldon School of Biomedical Engineering

Title:  Pitch processing in the context of cochlear anatomic damage

Abstract:

Pitch is a complex psychoacoustic phenomenon that we rely on to communicate with others and listen to music. While pitch perception has been studied for decades, the exact neurophysiological mechanism responsible for coding this percept has not yet been determined. Because of this, our knowledge of how specific forms of cochlear impairment impact pitch perception is limited. There are three categories of hypotheses that attempt to explain pitch coding in terms of the tonotopic organization of our auditory system and the temporal information present in neural firing: place, time, and place-time. However, these hypotheses are rarely assessed in the context of commonly investigated cochlear anatomic deficits: outer hair cell, inner hair cell, and auditory nerve synapse damage. Understanding how these deficits affect our pitch coding and perception is instrumental in designing better hearing-assistive technology. Here, I will propose some aims and a cross-species experiment to assess pitch processing in the context of cochlear damage-- with the intent of receiving feedback and spurring pitch-related discussion.

Zoom Info:

https://purdue-edu.zoom.us/j/93108158900?pwd=RDdTQ0Z4UE9Rb0JUenhjMG1SMkp2QT09

Meeting ID: 931 0815 8900​

Passcode: 11501150

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The working schedule for this academic is here:

https://purdue.edu/TPAN/hearing/shrp_schedule

The titles and abstracts of the talks will be added here:

https://purdue.edu/TPAN/hearing/shrp_abstracts