The focus of this Research and Training Center in Hearing and Balance is the study of labyrinthine from the biophysics of hair cell mechanisms to the rehabilitation of patients with unilateral hearing loss. The research we propose is focused on three closely related areas: mechanisms of hair cell damage; testing and rehabilitation of patients with unilateral vestibular lesions; and signal processing in the brainstem auditory system. One group of three projects focuses on in vitro and in vivo studies of these mechanisms of action of pharmacological and environmental ototoxins and on ways to mitigate these effects. A group of four projects attempts to devise better ways to evaluate otolith function, to learn more about vestibula-ocular adaptation with implications for the design of physical therapies, to examine effects of anti-motion sickness medications, and to test the efficacy of physical therapy on improvement of vestibular function in patients with unilateral lesions. A final group of four projects focuses on the role of on and of other sensory inputs on signal processing in the cochlear nucleus. Our proposed training program will integrate training in hearing and balance and will provide for strong interactions between basic science and clinical trainees and faculty. This program takes advantage of the Hopkins strength in basic and clinical science. Among a number of novel features that build on an already established training program are the development of a clinical rotation for basic science trainees, an integrated research and clinical residency for selected clinician scientists, a neuro-otology postdoctoral program for otolaryngologists, neurologists, audiologists and physical therapists, and a sabbatical plan to bring scientists and clinicians to our Center from institutions with inadequate research environments. We propose a series of continuing education symposia in hearing and balance for health professionals that will address important clinical issues with a firm grounding in basic research. We will offer a continuing studies course that will make current information on hearing and balance function and disorders accessible to the local professional and lay communities. Finally, we propose to develop a broad information dissemination program to reach health professionals, the lay public, opinion leaders and patients. This program will take advantage of the extensive Hopkins Public Affairs machinery.

Agency
National Institute of Health (NIH)
Institute
National Institute on Deafness and Other Communication Disorders (NIDCD)
Type
Comprehensive Center (P60)
Project #
5P60DC000979-02
Application #
3108309
Study Section
Special Emphasis Panel (SRC (01))
Project Start
1990-09-30
Project End
1995-08-31
Budget Start
1991-09-01
Budget End
1992-08-31
Support Year
2
Fiscal Year
1991
Total Cost
Indirect Cost
Name
Johns Hopkins University
Department
Type
Schools of Medicine
DUNS #
045911138
City
Baltimore
State
MD
Country
United States
Zip Code
21218
Kanold, Patrick O; Davis, Kevin A; Young, Eric D (2011) Somatosensory context alters auditory responses in the cochlear nucleus. J Neurophysiol 105:1063-70
Davis, Kevin A (2005) Spectral processing in the inferior colliculus. Int Rev Neurobiol 70:169-205
Davis, Kevin A (2005) Contralateral effects and binaural interactions in dorsal cochlear nucleus. J Assoc Res Otolaryngol 6:280-96
Peng, Grace C Y; Minor, Lloyd B; Zee, David S (2005) Gaze position corrective eye movements in normal subjects and in patients with vestibular deficits. Ann N Y Acad Sci 1039:337-48
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Peng, Grace C Y; Zee, David S; Minor, Lloyd B (2004) Phase-plane analysis of gaze stabilization to high acceleration head thrusts: a continuum across normal subjects and patients with loss of vestibular function. J Neurophysiol 91:1763-81
McKenna, George J; Peng, Grace C Y; Zee, David S (2004) Neck muscle vibration alters visually perceived roll in normals. J Assoc Res Otolaryngol 5:25-31
Rothman, Jason S; Manis, Paul B (2003) Kinetic analyses of three distinct potassium conductances in ventral cochlear nucleus neurons. J Neurophysiol 89:3083-96
Rothman, Jason S; Manis, Paul B (2003) Differential expression of three distinct potassium currents in the ventral cochlear nucleus. J Neurophysiol 89:3070-82
Rothman, Jason S; Manis, Paul B (2003) The roles potassium currents play in regulating the electrical activity of ventral cochlear nucleus neurons. J Neurophysiol 89:3097-113

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