Lecture 9: Psychophysics Flashcards
1
Q
4 Central Concerns of Modern Psychophysics
A
1) Detection
2) Recognition
3) Discrimination
4) Scaling
2
Q
Detection
A
is there anything there
3
Q
Recognition
A
what is it
4
Q
Discrimination
A
is this stimulus different from that one
5
Q
Scaling
A
how much of X is there
6
Q
Fechner’s three methods of measuring absolute thresholds
A
1) method of limits
2) method of adjustment
3) method of constant stimuli
7
Q
Signal detection theory
A
looks at yes responses when stimulus is there but also when not there
