PSYB51H3 Lecture Notes - Lecture 8: Zoom Lens, Attentional Blink, Simple Algorithm
Document Summary
Easy to recognize things in global perceptions: ex scene perception. We can pick out complex scenes and remember them. Global processing: computer model doing something like that: computer algorithm looking at certain aspects of a picture spatial frequencies, contrasts, with some other features it was able to process. Openness of scene vs looking down a narrow canyon. Can quantify how open the scene is. Depth how far can you see into the picture: can arrange these scenes according to these two dimensions, similar scenes were glued together. Emerged from simple algorithm of quantifying certain features that the problem was organizing scenes. Simple computer algorithms can extract these features. Global processing can be done fairly quickly. Spatial frequencies are different for human made scenes more vertical and horizontal lines. Sometimes we have difficulties when specific things are different in a given scene change blindness: without paying attention to them, have trouble seeing the differences.
