PS260 Lecture Notes - Lecture 8: Unitary Representation, Memory Span, Alan Baddeley
Document Summary
Dissociating stm and ltm: serial position curve, the recency effect, negative recency effect. Stimuli could also be letters, or words, etc. Memory span = number of correct ites that people can immediately recall from a se(cid:395)ue(cid:374)ce of ite(cid:373)s . The magical number seven, plus or minus two. Chunk: anything in working memory which has a unitary representation in long-term memory. Recoding: packing more information into each chunk, given that the number of chunks is limited. Primacy: superior memory for the beginning information in a sequence. Asymptote: avaergae memory for information in the middle of a sequence. Recency: superior memory for the ending information in a sequence. Dissociation: an independent variable affects one situation or theoretical entity differently from another (e. g. , distraction affects wm but not ltm) Double dissociation: two situations or theoretical entities are affected in opposite ways by one or more independent variabkes (e. g. , distraction affects wm but not ltm; word frequency affects ltm but not wm)
