In Chapter 6 we used Edelman’s theory of Neural Darwinism to explore the nature of neuralanalogy. However, we did not suggest how the "lower-to-intermediate-level" details discussedthere might fit into a theory of higher-level brain function. It is possible to give a partial Neural-Darwinist analysis of the perceptual and motor hierarchies. This entails wandering rather…
I propose a motor control hierarchy which is closely analogous to the perceptual hierarchy, butworks in the opposite direction. In the motor control hierarchy, the lower levels deal directlywith muscle movements, with bodily functions; whereas the higher levels deal with patterns inbodily movements, with schemes for arranging bodily movements. This much is similar to…
Consider an algorithm y=A(f,x) which takes in a guess x at the solution to a certain problem fand outputs a (hopefully better) guess y at the solution. Assume that it is easy to compute andcompare the quality Q(x) of guess x and the quality Q(y) of guess y. Assume also that A containssome parameter…
Twenty years ago, Marr (1969) and Albus (1971) suggested that the circuitry of thecerebellum resembles the learning machine known as the "perceptron." A perceptron learns howto assign an appropriate output to each input by obeying the suggestions of its "teacher". Theteacher provides encouragement when the perceptron is successful, and discouragementotherwise. Marr and Albus proposed…