ENS 307 Lecture Notes - Lecture 3: Pattern Recognition
25 Mar 2020
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Document Summary
Reaction time (rt): the time required for a person to prepare and begin a movement. Movement time (mt): the time between the initiation of movement and its completion. Rt and mt are generally considered to be independent. In order to measure response time, we need. Simple rt: one signal, one response (sprinter) Choice rt: multiple signals, each with different response (traffic signal) Discrimination rt: multiple signals, only one response (joggers avoiding obstacles) Reaction time can be further divided into 2 components: Premotor: time from stimulus to beginning of emg activity. Measures receipt, processing and transmission of information. Motor: time from onset of emg activity to initiation of movement. Many information processing activities occur during the rt. Some processing stages can only be serial (sequential) Some processing stages can be parallel (overlapping in time) Three stages: stimulus identification, response selection, response programming. Presentation (or onset) of an environmental stimulus.
