J. A. Donaldson

Learn More
Reviewers The Publications Committee of the American Physiological Society gratefully acknowledges the services of the following reviewers who assisted the Editorial Board in the reviews of manuscripts. (invited only) have specific instructions that you should review if you are submitting to them. The American Physiological Society (APS) Journals seek(More)
Functional aspects of cochlear prostheses implanted in the scala tympani were tested in monkeys trained to perform a simple reaction-time task. Thresholds for detection of electrical stimulation and dynamic ranges were tested for a wide range of frequencies of sinusoidal stimulation and for biphasic rectangular pulses of various durations and repetition(More)
Eustachian tube and middle ear function has been studied in the acute and chronically prepared Rhesus monkey preparation. Measures have included observations of tympanometry and input impedance of the middle ear, of transmission of energy through the middle ear, of static middle ear pressure and of threshold and suprathreshold hearing. Positive and negative(More)
The role of retinohypothalamic input to the suprachiasmatic nuclei (SCN) as well as SCN afferents from the ventrolateral geniculate nuclei (LGNV) in the entrainment of circadian drinking rhythms was investigated in the rat. Bilateral lesions of the LGNV and the primary optic tracts had no affect on the entrainment of drinking rhythms to a light-dark cycle,(More)
The three parts of the inner ear have been reviewed: the membranous (endolymph containing) labyrinth surrounded by the osseous (perilymph containing) labyrinth, and the otic capsule of bone that encases the osseous labyrinth. This is a brief survey of the normal anatomy, but one must always remember that the hallmark of the temporal bone is variation.
The effect of electrical stimulation of the cochlea on vestibular response was monitored in six rhesus monkeys. Eye movements and single-unit activity from the vestibular portion of the eighth nerve, vestibular nuclei, reticular formation, and abducens nucleus were observed while electrical stimulation was delivered through an implanted cochlear prosthesis.(More)
  • 1