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Modulation of event‐related potentials by word repetition: The role of visual selective attention
Author(s) -
OTTEN LEUN J.,
RUGG MICHAEL D.,
DOYLE MICHAEL C.
Publication year - 1993
Publication title -
psychophysiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.661
H-Index - 156
eISSN - 1469-8986
pISSN - 0048-5772
DOI - 10.1111/j.1469-8986.1993.tb02082.x
Subject(s) - psychology , repetition (rhetorical device) , event related potential , cognitive psychology , word (group theory) , selective attention , contrast (vision) , visual attention , communication , audiology , electroencephalography , cognition , linguistics , neuroscience , artificial intelligence , computer science , philosophy , medicine
Event‐related potentials (ERPs) were recorded while subjects viewed visually presented words, some of which occurred twice. Each trial consisted of two colored letter strings, the requirement being to attend to and make a word/non word discrimination for one of the strings. Attention was manipulated by color in Experiment 1, and color and a precue were used in Experiment 2. As in previous ERP studies of word repetition, a positive offset to repeated words developed when both first and second presentations were the focus of attention. In Experiment 2, ERPs showed evidence of positive‐going repetition effects in all conditions in which at least one of the two presentations of the repeated word was attended. In the visual modality, the positive‐going ERP repetition effect occurs only when at least one of the two presentations of a repeated item is the object of attention, which suggests that one or more of the processes reflected by the effect is capacity limited.