title: Time courses in the negative and positive repetition effects.
abstract: Time courses of the negative repetition effect (NRE), a poorer detection of the target in noise-same-as-target than in noise-alternative-target displays, and its opposite, the positive repetition effect (PRE), were examined. Experiment 1 showed that displays in which a low-contrast target was present with a high-contrast noise produced a larger NRE than did displays in which a contrast relationship between items was reversed. A negative contrast repetition effect (NCRE) was also found that was comparable to the NRE. Experiment 2 showed that dimensional Korean letters (e.g., [symbol: see text]) whose configural differences were apparent in orientation produced the largest PRE at a 0-ms stimulus onset asynchrony, whereas featural Korean letters (e.g., [symbol: see text]) that differed in the number of elements yielded the largest NRE when a noise letter preceded a target letter by 50 ms. Experiments 3A and 3B indicated that the NCRE may arise from spatial attention.
authors.affiliation: Department of Psychology, Johns Hopkins.
authors.forename: H W
authors.initials: HW
authors.lastname: Kwak
authors.forename: J O
authors.initials: JO
authors.lastname: Kim
authors.forename: M K
authors.initials: MK
authors.lastname: Park
mesh_terms: D000328:Adult; D001288:Attention; D003463:Cues; D004193:Discrimination Learning; D005260:Female; D006801:Humans; D008297:Male; D009949:Orientation; D010364:Pattern Recognition, Visual; D010470:Perceptual Masking; D011930:Reaction Time