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Modulation of event-related potentials by word repetition: the role of visual selective attention.

Otten, LJ; Rugg, MD; Doyle, MC; (1993) Modulation of event-related potentials by word repetition: the role of visual selective attention. Psychophysiology , 30 (6) 559 - 571.

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Abstract

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/nonword 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.

Type: Article
Title: Modulation of event-related potentials by word repetition: the role of visual selective attention.
Location: UNITED STATES
Language: English
Keywords: Adult, Arousal, Attention, Cerebral Cortex, Electroencephalography, Evoked Potentials, Visual, Female, Humans, Male, Pattern Recognition, Visual, Psychophysiology, Reaction Time, Reading, Semantics
UCL classification: UCL > School of Life and Medical Sciences > Faculty of Brain Sciences > Psychology and Language Sciences (Division of) > Institute of Cognitive Neuroscience
UCL > School of Life and Medical Sciences > Faculty of Life Sciences
URI: http://discovery.ucl.ac.uk/id/eprint/176636
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