. Design for a brain. Brain -- Physiology; Central nervous system -- Mathematical models; Neurophysiology. 9/5 DESIGN FOR A BRAIN by a device as simple as a sheet of glass (in the example of the pike) ; and because the rules of the training are to be decided in advance (as when we decide to punish a house-dog whenever he jumps into a chair), and therefore to be invariant throughout the process. Suppose then that jumping into a chair always results in the dog's sensory receptors being excessively stimulated. As an ultrastable system, step-function values which lead to jumps into chairs will be


. Design for a brain. Brain -- Physiology; Central nervous system -- Mathematical models; Neurophysiology. 9/5 DESIGN FOR A BRAIN by a device as simple as a sheet of glass (in the example of the pike) ; and because the rules of the training are to be decided in advance (as when we decide to punish a house-dog whenever he jumps into a chair), and therefore to be invariant throughout the process. Suppose then that jumping into a chair always results in the dog's sensory receptors being excessively stimulated. As an ultrastable system, step-function values which lead to jumps into chairs will be followed by stimulations likely to cause them to change value. But on the occurrence of a set of step- function values leading to a remaining on the ground, excessive stimulation will not occur, and the values will remain. (The cessation of punishment when the right action occurs is no less important in training than its administration after the wrong action.) The process can be shown on the homeostat. Figure 9/5/1 provides an example. Three units were joined : and to this system was joined a ' trainer ', actually myself, which acted on the rule that if the homeostat did not respond to a forced movement of 1 by an opposite movement of 2, then the trainer would force 3 over to an extreme position. The diagram of immediate effects is therefore really >T. Part of the system's feedbacks, it will be noticed, pass through T. At Sv 1 was moved and 2 moved similarly. This is the * for- bidden ' response ; so at D1} 3 was forced by the trainer to an extreme position. Step-functions changed value. At S2, the homeostat was tested again : again it produced the forbidden response ; so at Z)2, 3 was again forced to an extreme position. At £3, the homeostat was tested again : it moved in the desired way, so no further deviation was forced on 3. And at *S4 and $5 the homeostat continued to show the desired reaction. 116. Please note that these images are extracted from scanned page images


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Keywords: ., bookcentury1900, bookpublishernewyorkwiley, booksubjectneurophys