NROC64H3 Lecture Notes - Deeper And Deeper, Semicircular Canals, Motor Control

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Generally have learned lot by studying complete system w output compared with purely sensory system. Feedback using info about result to improve performance is important in control of movement. But the this system has flaw it vulnerable to noise noise is any kind of unpredictable disturbance that makes actual result differ from what the controller expects (e. g. wind) World is unpredictable particular pattern of activation in motor nerves will produce diff movements of limbs depending on host of internal factors (e. g. temperature, fatigue etc. ) One way of dealing w/ noise to have some kind of sensor that monitors the noise before it affects system & to use this info to adjust parameters of controller to allow for it. Is called parametric feed-forward controller parameters to anticipate the effects of noise e. g. adjusting for wind before launching the missile. Need comparator compares actual result w desired results by subtracting one from another.

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