Feature integration

Question 1

Visual search

Answer 1

Task where you have to find a target

Easy when it pops out due to one feature (eg red T amoung green T’s) = feature search

More difficult when target is conjunction of two features. Combining the two takes effort = conjunction search

Question 2

Slopes

Answer 2

Feature slope is Zero slope (RT remains the same, quick bc it pops out)

Conjunction search slope is non-zero, the more distractors/larger the display size, the longer the RT.

Question 3

Binding features

Answer 3

Due to limited capacity, you can’t combine all features of the whole display at once. You have to attend groups of stimuli

Question 4

Feature Integration Theory (FIT)

Answer 4

Psychological theory about how you integrate conjunctions

Features are detected in parallel across the visual field. Only at the attended location features are integrated, which can only happen a few at a time due to limited attention capacity

Similar to Assembly coding, but here attention forms the glue that allows for integration

Question 5

Horse race model

Answer 5

Cortical activity has to rise to certain threshold to initiate a saccade. If the response is stronger, the threshold is reached faster. /