TY - JOUR
T1 - Repetition priming results in sensitivity attenuation
AU - Allenmark, Fredrik
AU - Hsu, Yi Fang
AU - Roussel, Cedric
AU - Waszak, Florian
N1 - Funding Information:
The research leading to these results received funding from the European Research Council (ERC) under the European Union׳s Seventh Framework Program (FP7/2007–2013)/ERC Grant Agreement 263067 .
Publisher Copyright:
© 2015 The Authors.
Copyright:
Copyright 2015 Elsevier B.V., All rights reserved.
PY - 2015/11/11
Y1 - 2015/11/11
N2 - Repetition priming refers to the change in the ability to perform a task on a stimulus as a consequence of a former encounter with that very same item. Usually, repetition results in faster and more accurate performance. In the present study, we used a contrast discrimination protocol to assess perceptual sensitivity and response bias of Gabor gratings that are either repeated (same orientation) or alternated (different orientation). We observed that contrast discrimination performance is worse, not better, for repeated than for alternated stimuli. In a second experiment, we varied the probability of stimulus repetition, thus testing whether the repetition effect is due to bottom-up or top-down factors. We found that it is top-down expectation that determines the effect. We discuss the implication of these findings for repetition priming and related phenomena as sensory attenuation. This article is part of a Special Issue entitled SI: Prediction and Attention.
AB - Repetition priming refers to the change in the ability to perform a task on a stimulus as a consequence of a former encounter with that very same item. Usually, repetition results in faster and more accurate performance. In the present study, we used a contrast discrimination protocol to assess perceptual sensitivity and response bias of Gabor gratings that are either repeated (same orientation) or alternated (different orientation). We observed that contrast discrimination performance is worse, not better, for repeated than for alternated stimuli. In a second experiment, we varied the probability of stimulus repetition, thus testing whether the repetition effect is due to bottom-up or top-down factors. We found that it is top-down expectation that determines the effect. We discuss the implication of these findings for repetition priming and related phenomena as sensory attenuation. This article is part of a Special Issue entitled SI: Prediction and Attention.
KW - Prediction
KW - Repetition suppression
KW - SDT
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U2 - 10.1016/j.brainres.2015.03.030
DO - 10.1016/j.brainres.2015.03.030
M3 - Article
C2 - 25819554
AN - SCOPUS:84948709937
VL - 1626
SP - 211
EP - 217
JO - Brain Research
JF - Brain Research
SN - 0006-8993
ER -