It is shown that many particular choices among possible neurophysiological assumptions are equivalent, in the sense that for every net behaving under one assumption, there exists another net which behaves under the other and gives the same results, although perhaps not in the same time.Expand

The results show that for the most part within that area of the optic nerve of a frog, it is not the light intensity itself but rather the pattern of local variation of intensity that is the exciting factor.Expand

It is concluded, not that interval modulation rather than binary modulation “ought” to be the mode of action of the central nervous system, but that the contrary assumption is unsupported by considerations of efficiency.Expand

Two neural mechanisms are described which exhibit recognition of forms. Both are independent of small perturbations at synapses of excitation, threshold, and synchrony, and are referred to partiular… Expand

Preface by Jerome Y. LettvinWarren S. McCulloch was an original thinker, in many respects far ahead of his time. "Of all our contemporaries in brain research McCulloch is the most personal,… Expand

The apparent inconsistency of preference is shown to indicate consistency of an order too high to permit construction of a scale of values, but submitting to finite topological analysis based on the finite number of nervous cells and their possible connections.Expand