| 摘要 |
PCT No. PCT/GB92/02043 Sec. 371 Date Oct. 13, 1994 Sec. 102(e) Date Oct. 13, 1994 PCT Filed Nov. 5, 1992 PCT Pub. No. WO93/09513 PCT Pub. Date May 13, 1993An integrated circuit having a plurality of interdependent differential pairs of CMOS transistors emulates the functional characteristics of a biological neuron. The gate voltage of a first one of each pair of transistors is settable to a threshold value corresponding to an activation threshold of an ion channel in the biological neuron and the gate of a second one of each pair of transistors is representative of an incoming membrane potential, ligand concentration or ion concentration of the biological neuron. Each differential pair of CMOS transistors provides a sigmoidal output representative of an ionic conductance across a neuron membrane when the gate voltage of the second transistor exceeds the threshold value set by the gate voltage of the first transistor.
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