Psychology 2115A/B Lecture Notes - Lecture 22: Depth Perception, Ageism, Visual Search

• School: Western University
• Department: Psychology
• Course: Psychology 2115A/B
• Professor: Stephen Lupker

Document Summary

What attention does during perception is take things that pop out of the display automatically and __ 2 steps: one: automatic arrival of features, two: put together using perception. Tresiman wanted to use these paradigms to prove this point: visual search paradigm. Pop out if it doesn"t pop out linear 2:1 ratio: texture segregation. Present people with stimuli that is horizontally or vertically defined. You can say there was a pink in the middle of blue but where it was you may not know. In contrcst if something is defined by conjustion (find pink h amongst blue os) if you track it down you will be correcr. Something pops out you know it but maybe not where. But if you have to combine two features you know! Treisman and galade : 2 x 6 display. Subjects have to say if there is a particular target or not.