PSYC 220 Lecture Notes - Lecture 8: Mental Rotation, Speed Zone, Interference Theory
Document Summary
Study question: describe an experiment that shows a dissociation between phonological & visual codes in short term memory. 2 postulates: if an item held in stm requires regular (cid:498)calling to mind(cid:499) then it will gradually decay, more frequent updates lead to faster decay rights. Capacity: miller"s magic number (7 +/- 2 items, recording/ chunking. C i a s t f x p h d r c m p (chunk them together to 4 items instead of 14: mnemonists. S. f: change detection experiments (# squares increase, accuracy decreases, a more accurate description of capacity might be about 4 items) Retrieval from stm: memory scanning task, memory set is presented (ex. B v k g: probe item is presented (ex. A parallel search account: process all targets at the same time, assume time to process targets, 400ms + 40ms/ proportion of available resources. 1 item 1. 00 resources, time= 400+40/1= 400. Etc: time for absent trials = time for present trials.
