Binary threshold neurons
McCulloch-Pitts (1943): influenced Von Neumann!
First compute a weighted sum of the inputs from other
neurons
Then send out a fixed size spike of activity if the
weighted sum exceeds a threshold.
Maybe each spike is like the truth value of a
proposition and each neuron combines truth values to
compute the truth value of another proposition!
1
1 if
y
0
0 otherwise
z
threshold