sequence of events in spatial cueing paradigm

Sequence of Events in Spatial Cueing Paradigm

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Sequence of Events in Spatial Cueing Paradigm

+

time

Sequence of Events in Spatial Cueing Paradigm

+

*time

Spatial Cueing

• Independent Variable: type of cue (could also be called cue-target relationship)– Levels: Valid, Invalid, Neutral

VALID CUE

+

*

INVALID CUE

+

*

NEUTRAL CUE

+

---

*

Spatial Cueing

• Dependant Variable: Reaction time

• Results

Valid Neutral Invalid

Rea

ctio

n tim

e

+

SOA (Stimulus Onset Asychrony)

+

time

SOA (Stimulus Onset Asychrony)

+

*time

SOA ( ex. 500ms)

0

1

2

3

4

5

6

1 2

100 1200

Valid Invalid Valid Invalid

REALY short SOA Not too short SOA

0

1

2

3

4

5

6

1 2

100 1200

Series1

Series2

Inhibition of return keeps attention from revisiting where it has just been.

On valid trials that’s what you have to do – so your RT is slower.

Valid Invalid Valid Invalid

REALY short SOA Not too short SOA

IVs you could add to spatial cueing task

• Type of cue (central or peripheral)• SOA• Target appears Left vs. right• Any more???

Attentional Blink

• IV: separation between the two targets --levels (0), 2, 4, 6, 8, seconds

• IV: target order--levels 1st or 2nd

• DV: Accuracy of detection of targets

Attentional Blink Results

2 4 6 8

Cor

rect

det

ectio

ns

Seconds in between 1st and 2nd letter

1st letter

2nd letter