Frequency-to-voltage conversion in the pyramidal tract neuron: An important role of the inhibitory postsynaptic potential
Y. Kang,K. Endo,T. Araki;Y. Kang;K. Endo;T. Araki;
neuroscience letters1985Vol. 57pp. 175-180
70
araki1985neurosciencefrequency-to-voltage
Abstract
Frequency-coded impulses are known to be converted into postsynaptic potentials (PSPs) at the synapse of a target neuron. This can be termed frequency-voltage (F-V) conversion. Studies on this problem in pyramidal tract neurons (PTNs) showed that not only the amplitude but also the duration of depolarizing PSPs was determined as a function of the input impulse frequency. Two opposite patterns of F-V conversion were observed following activation of two input systems to PTNs. Inhibitory postsynaptic potentials were found to play an important role in the regulation of the duration of PSPs by curtailing excitatory post-synaptic potentials.