Am. Surprenant et al., Manipulations of irrelevant information: Suffix effects with articulatory suppression and irrelevant speech, Q J EXP P-A, 53(2), 2000, pp. 325-348
Citations number
72
Categorie Soggetti
Psycology
Journal title
QUARTERLY JOURNAL OF EXPERIMENTAL PSYCHOLOGY SECTION A-HUMAN EXPERIMENTAL PSYCHOLOGY
Numerous studies have demonstrated impaired recall when the to-be-remembere
d information is accompanied or followed by irrelevant information. However
, no current theory of immediate memory explains all three common methods o
f manipulating irrelevant information: requiring concurrent articulation, p
resenting irrelevant speech, and adding a stimulus suffix. Five experiments
combined these manipulations to determine how they interact and which theo
retical Framework most accurately and completely accounts for the data. In
Experiments 1 and 2, a list of auditory items was followed by an irrelevant
speech sound (the suffix) while subjects engaged in articulatory suppressi
on. Although articulatory suppression reduced overall recall compared to a
control condition, comparable suffix effects were seen in both conditions.
Experiments 3 and 4 found reliable suffix effects when list presentation wa
s accompanied by irrelevant speech. Experiment 5 found a suffix effect even
when the irrelevant speech was composed of a set of different items. Impli
cations for working memory, precategorical acoustic store, the changing-sta
te hypothesis, and the feature model are discussed.