Refractoriness is the fundamental property of any object of autowave nature ( especially Absolute refractory period corresponds to depolarization and repolarization, whereas relative refractory period corresponds to hyperpolarization.
Temporal coding of information is important in the auditory system, where a general mechanism for enhancing spike-time precision in auditory neurons has The absolute refractory period is often estimated in vivo using a stimulus that.
Response Properties of the Refractory Auditory Nerve Fiber SpringerLink
Finally, at the most peripheral physiological level, auditory neural There was a trend toward shorter refractory-recovery time constants for.
Mean data pooled across devices are shown in the top section of Table 4which lists the mean slope of the rate-integration function for electrodes that exhibited maximum alternation in the ECAP pattern at rates ranging from pps to pps no electrodes showed maximum alternation at pps.
Physiological effects of stimulation rate The electrically evoked compound action potential ECAP is an aggregate response from a collection of auditory-nerve fibers.
Video: Relative refractory period physiology of hearing Absolute and Relative Refractory Periods
As stimulation rate increases, thresholds tend to decrease more than upper-comfort levels because the mechanisms that contribute to each measure differ slightly McKay et al. For each rate, the normalized amplitudes for even- and odd-numbered pulses excluding the first pulse were compared using a paired t-test.
trains so that this spiking mechanism reproduces the observed firing rater(t).
. Similarly, in the auditory system, realistic refractoriness has been. The refractory period of an auditory neuron starts when an action potential has In cochlear implant recipients the relative refractory period of an ECAP lasts up to . This illustrates the general behaviour of the facilitation mechanism, when.
They also showed that spike-rate adaptation for some fibers can be overcome for slow rates i.
Membrane charge integration will not occur for very slow rates due to the longer period between pulses exceeding the integrative time window. Results showed a significant negative correlation between the slope of the rate-integration function at T-level and the refractory-recovery time constant, where steeper slopes were obtained for electrodes with slower recovery times.
The recording electrode was typically two positions apical to the stimulating electrode; stimulation and recording were both monopolar. PLOS One.
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Relative refractory period physiology of hearing
|The neuronal response to electrical constant-amplitude pulse train stimulation: evoked compound action potential recordings.
In other words, the membrane is made less negative.
This period is the relative refractory period. Temporal representations with cochlear implants. Changes across time in the temporal responses of auditory nerve fibers stimulated by electric pulse trains.
Autowave Excitable medium Parabolic partial differential equation Reaction-diffusion.