207 Final Exam 341 Practice Questions And Answer

What changes occur when learning something {Ans: rate of improvement movement coordination (DOF) muscles used to perform the skill changes in attention Error detection activity across different brain areas}sensorimotor adaptation {Ans: - sensorimotor system responds to altered environmental (or body) conditions by reducing errors to regain a previous level of performance (recovery of function following neurological injury)}How does increasing swing force in baseball affect MT {Ans: A smaller MT causes larger movement distance so that errors in timing decrease--> why baseball batter practice swinging w/ a weight on, so once the weight is off , you compensate for the decrease in weight and allow for greater swing power.}Error in motor command/program {Ans: Reflects movement error--> feedback from vision can alter program to change parameters}Temporal summation {Ans: In CNS, AP is the stimulus from an alpha motor neuron. This causes a prolonged elevation of intracellular calcium which contributes to the increased force during tetanic contractions.}population vector {Ans: The sum of the preferred tunings of neurons multiplied by their firing rates--> encodes actual direction.}State estimation {Ans: Combining predicted sensory feedback with actual to form a belief about state of our body and world}recognition schema