[Properties of the excitatory postsynaptic currents in the cat motor neurons]

Monosynaptic supraspinal and la excitatory postsynaptic current (e. p. s. c.) recorded with the aid of voltage clamp technique at different levels of MP, revealed characteristics as follows: peak amplitude 2--18 nA, rise time 0.3--0.5 msec, half-width 0.5--1.0 msec; extrapolated reversal potential +70-+100 mV. Slow residual current (1--4 nA) followed the e. p. s. c. E. p. s. c. and e. p. s. p. s were discussed considering the current-voltage relation and analog model.