Midterm 2 - Unit 4 Lecture 3 Flashcards
what is simple RT
the RT when the situation involves only one signal (stimulus) that requires only one response
what is Choice RT
involves a person distinguishing among two or more stimuli and possibly having one or more responses to make
what is Discrimination Reaction Time
the reaction time when the situation involves more than one signal, but only one response to only one of the signals; the other signals require no response
what effects DRT
Similarity of Stimuli
Pattern Recognition
Static Visual Acuity (SVA)
Dynamic Visual Acuity (DVA)
Unskilled performer should first attain…
reasonable level of accuracy before attempting to speed up
The more alike two sets of stimuli are the….
longer it will take a performer to respond
what is Crossman’s Confusion Function
The law relating DRT to the degree of discriminability of two stimuli is called
How does pattern recognition effect DRT
Recognizing patterns allows us to predict and expect what is coming.
The process of pattern recognition involves matching the information received with the information already stored in the brain.
what is Static Visual Acuity (SVA)
the ability to distinguish the details of static objects whose image is formed on the retina when the evaluated subject is also stationary.
what is Dynamic Visual Acuity (DVA)
the ability to identify the details of visual targets when there are relative movements between the subjects and objects
what is Optical Flow Field
an optical flow field is the expansion, contraction or regular movement of all the stimuli (points, lines, edges) in the field of view
what did the Study of chess masters show
Master chess players have learned to recognize relevant patterns.
They could reproduce relevant chess board pattern from memory (beginners could not) but ….
They could not reproduce random patterns,
what did the Study of basketball players show
Varsity players were superior at recall of structured game situations (slides of offensive play in progress) than non-players.
what did the Study of volleyball players show
Reaction time of varsity players was less compared to non-players when detecting the presence or absence of a volleyball in slides of volleyball scenes.
what is tau
the time to contact or time to collision between the object and the observer is specified by: TAU
