A Flexible Neural Analog Using Integrated Circuits

摘要: An electronic neural analog is described which contains variable absolute and relative refractory periods, two time constants, separate control of the ``accommodation'' to sub-threshold voltage changes ``adaptation'' produced by occurrence output pulses (spikes). The extensive use integrated-circuit operational amplifiers permits an accurate description input-output relationships over a wide range values for all parameters. This facilitates comparison results obtained both with data mathematical or digitally simulated models activity. effect white noise on interval histograms their parameters its when added other inputs. Noise disrupts phase-locked patterns sinusoidal stimuli averaged response may become smooth function in presence noise. Adaptation produce phase lead stimuli, while accommodation lag. Corresponding overshoots undershoots are seen square-wave