refractory period


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refractory period

n
(Physiology) a period during which a nerve or muscle is incapable of responding to stimulation, esp immediately following a previous stimulation. In an absolute refractory period there is a total inability to respond; in an effective or relative refractory period there is a response to very large stimuli
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.refractory period - (neurology) the time after a neuron fires or a muscle fiber contracts during which a stimulus will not evoke a response
neurology - the branch of medical science that deals with the nervous system
biological time - the time of various biological processes
References in periodicals archive ?
ludens males from the genetic sexual strain (GSS)Tapachula-7 (Tap-7) in inducing the refractory period of wild females, by varying pupal age at which irradiation took place, and male sexual experience.
Furthermore, the model could be cracked repeatedly without hindrance by any refractory period between sequential iterations.
If the accumulated weighted input becomes positive and the neuron is not in its refractory period, the neuron n outputs a spike after a delay time [D.
We can observe in above Figures 2 and 3 that the Refractory Period is independent the gain coefficients a and [beta], and the constant values K and C.
The absolute refractory period was recorded using paired shock technique by calculating M wave (M1 and M2) at two supramaximal stimuli (S1 and S2) with an initial time delay between them at 8.
Masters and Johnson (1966) described a post-orgasmic refractory period in men "which develops as the last, irregular, nonexpulsive contractions of the urethra occur and is maintained until sexual tension in the male has been reduced to low excitement--phase levels of response" (p.
Effective refractory period (ERP) of LSPV, PV-LAj, HRA and LAA was investigated by 5 ms decremented stepwise [S.
However, there are preliminary data suggesting that alcohol reduces the atrial effective refractory period, which would be expected to have an atrial arrhythmogenic effect, Dr.
This is followed by a refractory period during which it's difficult to get sexually excited again.
An additional impulse from a defibrillation paddle or electrode presumably stops the runaway impulse by lengthening the refractory period of the heart's cells, in which they are immune to further stimulation.
4] This may degenerate in to ventricular fibrillation owing to rapid antegrade conduction through the AP if the refractory period is short.

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