This project is aimed at elucidating details regarding the manner in which components of complex (i.e., multiple-frequency) tones interact to produce responses in single auditory nerve fibers of cats. The major thrusts are (a) to study the """"""""two-tone suppression"""""""" phenomenon and (b) to develop a computational scheme which utilizes descriptions of discharge rate, discharge synchronization and suppression behavior of tonal components as its input and provides quantitative estimates of overall discharge rate and time structure as its output. Specific studies for this, the third and final funded year, include examination of (1) suppression behavior when the suppressor consists of a band of noise rather than a tone, (b) the additivity of suppression, (c) the """"""""physiological vulnerability"""""""" of suppression, (d) the comparison of forward-masking and simultaneous-masking measures of suppression magnitude, and (e) the testing of a newly-developed technique for predicting response behavior to complex tones.
| Javel, E; Shepherd, R K (2000) Electrical stimulation of the auditory nerve. III. Response initiation sites and temporal fine structure. Hear Res 140:45-76 |
| Shepherd, R K; Javel, E (1999) Electrical stimulation of the auditory nerve: II. Effect of stimulus waveshape on single fibre response properties. Hear Res 130:171-88 |
| Shepherd, R K; Javel, E (1997) Electrical stimulation of the auditory nerve. I. Correlation of physiological responses with cochlear status. Hear Res 108:112-44 |
| Horst, J W; Javel, E; Farley, G R (1986) Coding of spectral fine structure in the auditory nerve. I. Fourier analysis of period and interspike interval histograms. J Acoust Soc Am 79:398-416 |
| Horst, J W; Javel, E; Farley, G R (1985) Extraction and enhancement of spectral structure by the cochlea. J Acoust Soc Am 78:1898-901 |
