Temporal coding of frequency: neuron firing probabilities for acoustic and electric stimulation of the auditory nerve
AuthorClark, Graeme M.; Carter, T. D.; Maffi, C. L.; Shepherd, R. K.
Source TitleAnnals of Otology, Rhinology & Laryngology
Document TypeJournal Article
CitationsClark, G. M., Carter, T. D., Maffi, C. L., & Shepherd, R. K. (1995). Temporal coding of frequency: neuron firing probabilities for acoustic and electric stimulation of the auditory nerve. Annals of Otology, Rhinology & Laryngology, 104(suppl.166), 109-111.
Access StatusOpen Access
This is a publisher’s version of an article published in Annals of Otology, Rhinology & Laryngology published by Annals Publishing Company. This version is reproduced with permission from Annals Publishing Company. http://www.annals.com/
A better understanding of the temporal coding of frequency, and its application to electrical stimulation of auditory nerve fibers, should lead to advances in cochlear implant speech processing. Past research studies have suggested that the intervals between nerve action potentials are important in the temporal coding of frequency. For sound frequencies up to approximately 500 Hz, the shortest or predominant intervals between the nerve action potentials are usually the same as the periods of the sound waves. The intervals between each nerve action potential can be plotted as an interval histogram. Although there is evidence that the intervals between spikes are important in the temporal coding of frequency, it is not known up to what frequency this applies. It is also not known whether the information transmitted along individual fibers or an ensemble of fibers is important, to what extent the coding of frequency is interrelated with the coding of intensity, the relative importance of temporal and place coding for different frequencies, and finally, how well electrical stimulation can simulate the temporal coding of sound.
Keywordsotology; auditory nerve; acoustic stimulation; electric stimulation; speech processing; cochlear implant
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- Graeme Clark Collection