ABSTRACT
This study compares two neural mechanisms producing multiplicative rather than additive output: coincidence detection and graded disinhibition. These mechanisms are studied using elementary spiking neurons. Both mecanisms are found to implement multiplication of spiking rates. Coincidence detection has a weaker biological plausibility but an excellent response, and graded disinhibition has a stronger plausibility and response still more multiplicative than additive over reasonible (5–80) spiking rates.
