HMB200H1 Lecture Notes - Exact Sciences, Motor Learning, Motor System
Document Summary
Planning a movement while controlling speed and accuracy. Ballistic phase more important in tennis than in doing laundry correcting trajectory is difficult. To know woodworth"s (1899) dual- component model. To understand how movement amplitude and target width determine movement time (fitt"s law) fitt"s law is the closest we are getting to an exact science in motor learning! To the know the factors influencing fitt"s law. Dual- component model: ballistic phase (pre-planned, current control phase (on-line control) Displacement on the y- axis; time on the x- axis: the task was to move pen up and down to a target, we should see a perfect sinusoidal pattern. Because we have a phase of acceleration and a perfectly matched phase of deceleration. But this not what we get: we observe corrections that were taking place during the movement. Ballistic phase: based on information prior to movement initiation. The first component is similar to the expected pattern (it is somewhat ballistic).
