![]() ![]() In 1959, the neuroscientists, Warren Sturgis McCulloch and Walter Pitts published the first works on the processing of neural networks. Thus, Hebbian pairing of pre-synaptic and post-synaptic activity can substantially alter the dynamic characteristics of the synaptic connection and therefore either facilitate or inhibit signal transmission. The first rule of neuronal learning was described by Hebb in 1949, in the Hebbian theory. The figure illustrates the diversity of neuronal morphologies in the auditory cortex.Įarly treatments of neural networks can be found in Herbert Spencer's Principles of Psychology, 3rd edition (1872), Theodor Meynert's Psychiatry (1884), William James' Principles of Psychology (1890), and Sigmund Freud's Project for a Scientific Psychology (composed 1895). From "Texture of the Nervous System of Man and the Vertebrates" by Santiago Ramón y Cajal. ![]()
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