Mean instantaneous firing frequency is always higher than the firing rate
Language English Country United States Media print
Document type Comparative Study, Journal Article, Research Support, Non-U.S. Gov't
- MeSH
- Action Potentials physiology MeSH
- Biophysics MeSH
- Biophysical Phenomena MeSH
- Time Factors MeSH
- Humans MeSH
- Models, Genetic MeSH
- Models, Neurological * MeSH
- Neurons physiology MeSH
- Poisson Distribution MeSH
- Stochastic Processes MeSH
- Animals MeSH
- Check Tag
- Humans MeSH
- Animals MeSH
- Publication type
- Journal Article MeSH
- Research Support, Non-U.S. Gov't MeSH
- Comparative Study MeSH
Frequency coding is considered one of the most common coding strategies employed by neural systems. This fact leads, in experiments as well as theoretical studies, to construction of so-called transfer functions, where the output firing frequency is plotted against the input intensity. The term "firing frequency" can be understood differently in different contexts. Basically, it means that the number of spikes over an interval of preselected length is counted and then divided by the length of the interval, but due to the obvious limitations, the length of observation cannot be arbitrarily long. Then firing frequency is defined as reciprocal to the mean interspike interval. In parallel, an instantaneous firing frequency can be defined as reciprocal to the length of current interspike interval, and by taking a mean of these, the definition can be extended to introduce the mean instantaneous firing frequency. All of these definitions of firing frequency are compared in an effort to contribute to a better understanding of the input-output properties of a neuron.
References provided by Crossref.org
Variability and Randomness of the Instantaneous Firing Rate
