HKIN 215 Lecture Notes - Lecture 7: Binary Logarithm
Document Summary
Hand movements to a target, performer dictates speed. The skill itself hitting piano keys, throwing baseball. The performer manual aiming skills (elevator call button) Accuracy tends to decrease when things are done too quickly. Distance = center of one target to center of another. Instructed to move quickly and accurately to tap targets: will remain constant as long as d:w remains constant (ratio = 2d/w, will increase as ratio of d to w increases, will decrease as ratio decreases. Values (cid:449)ill (cid:374)e(cid:448)er go be(cid:455)o(cid:374)d (cid:1005)(cid:1006)(cid:1012) i(cid:374) pare(cid:374)theses, (cid:454) (cid:449)o(cid:374)"t pass (cid:1011) Tapping up and down on 2 targets would give id = 0. Ex: a = 250, b = 10, d = 4, w = 2. Mt = 250 + 10*log2(4) 2x = 4. Woodworth suggested that both processes are involved. Vision plays more prominent role in certain limb phases of movement. Preparation phase: (cid:862)i"(cid:373) goi(cid:374)g to perfor(cid:373) this skill(cid:863, vision assesses regulatory conditions, speed-accuracy trade-off.
