Title :
A new classification of neuron models for random inputs on bifurcation structures
Author :
Hosaka, Ryosuke ; Ikeguchi, Tohru ; Sakai, Yutaka ; Yoshizawa, Shuji
Author_Institution :
Graduate Sch. of Sci. & Eng., Saitama Univ.
Abstract :
Cortical regularly spiking neurons are classified into two classes, Class I and Class II, by their firing frequencies. We investigated the statistical characteristics of spike sequences of Class I and II neurons stimulated by uncorrelated fluctuations by two interspike interval statistics; coefficient of variation and coefficient of skewness. As a result, the interspike interval statistics of Class I and II neurons are different. Moreover, even if the neurons belong to the same class, if the precise bifurcation structures of the neurons are different, the statistics exhibit different characteristics. The results indicate insufficiency to classify neurons by the firing frequencies and necessity to classify neurons by the precise bifurcation structures
Keywords :
bifurcation; neural nets; statistics; bifurcation structures; class I neurons; class II neurons; cortical regularly spiking neurons; firing frequencies; interspike interval statistics; neuron models; skewness coefficient; spike sequences; Animals; Bifurcation; Calcium; Fluctuations; Frequency; Higher order statistics; Intersymbol interference; Neurons; Statistical analysis; Stochastic processes;
Conference_Titel :
Circuits and Systems, 2006. ISCAS 2006. Proceedings. 2006 IEEE International Symposium on
Conference_Location :
Island of Kos
Print_ISBN :
0-7803-9389-9
DOI :
10.1109/ISCAS.2006.1693191