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Functional Hearing Laboratory

Frequently Asked Questions

  • What is functional hearing?

    Functional hearing refers to our ability to use a multitude of auditory information to help with listening in noisy and challenging environments. The auditory information—or “auditory cues" as hearing scientists prefer to call them—becomes distorted and less useful in indoor places that have reverberation, like classrooms and restaurants.

  • What is the problem?

    In indoor auditory environments, it takes children a long time to develop the skills to pick and choose the distorted auditory cues that are most useful to help them navigate the space and listen to other people. There are additional challenges for children with hearing loss, even though they may wear hearing devices such as hearing aids or cochlear implants. Currently, we lack an effective way to configure hearing devices for pediatric patients that help maximize functional hearing in real-world listening environments.

  • What are we trying to learn and solve?

    Our lab has two big goals:
    - To understand how children with normal hearing develop functional hearing abilities. This will help us set realistic intervention goals for children who grow up wearing hearing devices.
    - To develop personalized auditory (re)habilitative tools for children with hearing devices that maximize functional hearing. These tools will not only help clinicians set up devices that are specifically tailored to each pediatric patient, but also provide long-term (re)habilitations for families to use in their homes.

  • What do we really do?

    We use virtual reality (VR) to simulate indoor auditory environments when we study functional hearing by children in our lab. We assess how well children navigate spaces and hear speech in these virtual environments. Some of the techniques we use include psychoacoustics, eye-tracking, and neuroimaging.

 

Our Studies

Functional Hearing In Complex Auditory Environments
The purpose of this study is to investigate how children locate sounds and understand speech in everyday indoor environments. This is done by using virtual reality in the lab.
Cortical Processing during Comprehension of Reverberant Speech
How do children with normal hearing and those with cochlear implants process speech distorted by reverberation? What are the neural markers that underpin listening effort in children?
Development of Functional Spatial Hearing in Reverberation with and without Hearing Loss
In this study, we ask the following questions: How do children with normal hearing develop spatial hearing in reverberant environments, e.g., classrooms? What are the individual variabilities in children with normal hearing and children with bilateral cochlear implant when they use auditory spatial cues distorted by reverberation?

Meet Our Staff

Ellen Peng, Ph.D.
Director, Functional Hearing Laboratory