Posners cueing task, endogenous

Question 1

Posners task

Answer 1

To study spatial attention behaviourally. endogenous has a central arrow cue.

Question 2

3 condition

Answer 2

Valid cue; arrow points to target
Invalid cue; Arrow points opposite to target
Neutral cue; arrows point in both directions

Question 3

3 important facts

Answer 3

Participants have the choice to use the cue or not. They don’t have to fixate

Cue validity matters, if it’s not predictive people stop using cue

It takes time before attention can be moved. Has to be at least 200 ms between cue & target or it won’t work

Question 4

Results

Answer 4

Valid cue: best accuracy and fastest RT

Invalid: RT slower and accuracy lower than neutral

BUT’ only if there’s 200 ms between cue & target and the predictive value is 70-80%