Psychology 2135A/B Lecture Notes - Lecture 5: Short-Term Memory, George Sperling, Agnosia

• School: Western University
• Department: Psychology
• Course: Psychology 2135A/B
• Professor: John Paul Minda

Document Summary

Bottom up feature detection: features letters words, predicts no advantage for words or non words, incorrect prediction, we recognize letter more quickly when they are in words. Cannot be explained easily by bottom up processes. Your activation for the entire word sequence lets you know that there is a certain letter in it (i. e. the k" in work) A computational model: three levels features, letters, words, excitatory and inhibitory connections between levels, target words can suppress activation of other words, letters, non-words are not activated, individual features activate letters then letter activate words. Study of patients with acquired (or developmental) brain damage. Emphasis on the preserved cognitive abilities and the deficits. Agnosia : apperceptive not getting the full perceptive info, associative can"t name the object, prosopagnosia ppl can"t recognize faces. Unable to form stable, pre-semantic (can"t perceive the object or name them) representation of objects. Ppl can see them but they can"t put the information together.