Neural modeling of the DCN: cross-correlation analysis using short-duration tone-burst stimuli

Author

Davis, K.A. ; Voigt, H.F.

Author_Institution

Boston Univ., MA, USA

fYear

1991

fDate

4-5 Apr 1991

Firstpage

211

Lastpage

212

Abstract

A computer model of an isofrequency patch of the dorsal cochlear nucleus (DCN) was created to explore possible mechanisms for various stimulus-dependent features observed in the cross-correlations of spike trains from type-II-type-IV unit pairs. Consistent with the functional inhibitory type-II-type-IV interaction, model I-cells provide inhibitory input to model P-cells. Simulated short-duration BF tone-bursts of either 50- or 200-ms duration in 200 trials of 250- or 1000-ms duration, respectively, were presented to the model at several sound pressure levels and difference cross-correlograms of I-cell-P-cell activity were computed. Inhibitory troughs were present in the I-cell-P-cell difference histograms derived from the 200-ms paradigm, but not present when derived from the 50-ms paradigm

Keywords

ear; neurophysiology; physiological models; 50 to 1000 ms; I-cells; P-cells; auditory neurophysiology; computer model; cross-correlation analysis; dorsal cochlear nucleus; isofrequency patch; short-duration tone-burst stimuli; sound pressure levels; spike trains; stimulus-dependent features; Biomedical computing; Biomedical engineering; Biomembranes; Circuits; Computational modeling; Delay; Graphics; Histograms; Neurons; Protocols;

fLanguage

English

Publisher

ieee

Conference_Titel

Bioengineering Conference, 1991., Proceedings of the 1991 IEEE Seventeenth Annual Northeast

Conference_Location

Hartford, CT

Print_ISBN

0-7803-0030-0

Type

conf

DOI

10.1109/NEBC.1991.154649

Filename

154649