Week 3 Flashcards
Simple reaction time
-a task that involves reacting to one stimulus
-gives a measure of processing time
Parallel processing
-multiple tasks at the same time
Serial processing
-one task performed before the other
Stimulus identification
-first the individual must perceive the stimulus
-then the stimulus must be sensed and processed
Sensation
-involves the activation of sensory receptors
Perception
-involves interpreting those sensations
What is stimulus detection affected by
-stimulus clarity
-stimulus intensity
-factors such as time, distractions, caffeine intake, fatigue etc
Choice R-T
-a reaction time task wherein the participant is presented with more than one possible stimulus and the required response is dependent on that stimulus
Hicks law
-the time it takes to make a response is related to the number of stimulus response alternatives
Shape of hicks law line
-log linear
Bits of information
-binary digit
-least amount of binary decisions
What is the y-intercept experimentally
-RT when you are only at 0 bits
-the simple reaction time
What is the slope experimentally
-amount of time that adding 1 bit of info adds to your choice RT
How many bits do simple RT tasks take
-0 bits `
How many bits do go/no-go tasks take
-0 bits