HLTH2000 Lecture 4: HLTH2000-Lecture 4
7 Nov 2018
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Document Summary
Input (a) related to the nature of the task eg. visual info to judge distance when throwing a ball or auditory info to judge timing of music when dancing eg. skilled athletes know implicitly what. Information selected from the environment that is (b) perceived to be important they need to pay attention to before moving and can focus on this info. Stages of information processing: stimulus identification, response selection (cid:862)i want to catch it(cid:863) Conceptual model (simplest form: response programming. Step right foot back/ out to stabilise trunk, very quickly scan immediate environment then fixate eyes on ball (flight trajectory), bend & lift elbows, extend arms, wrists & fingers, grasp ball ( . hopefully!) Reaction time (rt) index of preparation required to produce an action. Definition =interval between presentation of stimulus and onset of motor response. Important measure of information processing (decision making) speed.
