Temporal response patterns of single auditory nerve fibers elicited by periodic electrical stimuli

• Published in: Hearing research Vol. 29; no. 2; pp. 207 - 222
• Main Authors: van den Honert, C., Stypulkowski, P.H.
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 1987; Elsevier
• Subjects: Acoustic Stimulation; Animals; Auditory nerve; Biological and medical sciences; Cats; Diseases of the ear; Electric Stimulation; Electrical stimulation; Ent and stomatology; Evoked Potentials, Auditory; Medical sciences; Nerve Fibers - physiology; Pitch Perception; Radiotherapy. Instrumental treatment. Physiotherapy. Reeducation. Rehabilitation, orthophony, crenotherapy. Diet therapy and various other treatments (general aspects); Single fiber; Speech Acoustics; Temporal pattern; Time Factors; Vestibulocochlear Nerve - physiology; Waveform; Waveform; Electrical stimulation; Temporal pattern; Auditory nerve; Single fiber; Cochlea; Electric; Instrumentation therapy; ENT disease; Stimulation; Experimental study; Nerve fiber; Time response; Hearing loss
• ISSN: 0378-5955; 1878-5891
• DOI: 10.1016/0378-5955(87)90168-7

Single auditory nerve fibers exhibit firing synchronized to one or both phases of periodic AC stimulus currents. Responses to biphasic pulses depend on order and excitation sites of the two phases. Sine and triangle stimuli between 100 Hz and 500 Hz elicit similar response patterns. Responses to square waves are sometimes more synchronized and generally shifted in phase with respect to sine wave responses. Preferred firing phase(s): 1. (1) are largely independent of stimulus intensity; 2. (2) vary among fibers; 3. (3) may shift continuously or discontinuously over several seconds before steady state is achieved. Responses to an unprocessed synthetic vowel stimulus were dominated by pitch period, first formant, and ‘spurious’ components.