In a figure identification task, we investigated the influence of different visual cue configurations (spatial frequency, orientation or a combination of both) oil the human EEG Combining psychophysics with ERP and time-frequency analysis, we show that the neural response at about 200 ms reflects perceptual saltency rather than physical cue contrast Increasing saliency Caused (i) a negative shift of the posterior P2 coinciding with a power decrease in the posterior theta-band and (ii) an amplitude and latency increase of the posterior P3 We demonstrate that visual Cues interact for a percept that is non-linearly related to the physical figure-ground properties (C) 2010 Elsevier Ltd All rights reserved
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Univ Sassari, Dept Humanities & Social Sci, Via Roma 151, I-07100 Sassari, ItalyUniv Sassari, Dept Humanities & Social Sci, Via Roma 151, I-07100 Sassari, Italy
Pinna, Baingio
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Reeves, Adam
Koenderink, Jan
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Univ Leuven, Lab Expt Psychol, KU Leuven, Leuven, BelgiumUniv Sassari, Dept Humanities & Social Sci, Via Roma 151, I-07100 Sassari, Italy
Koenderink, Jan
van Doorn, Andrea
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Univ Utrecht, Dept Expt Psychol, Utrecht, NetherlandsUniv Sassari, Dept Humanities & Social Sci, Via Roma 151, I-07100 Sassari, Italy
van Doorn, Andrea
Deiana, Katia
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Univ Sassari, Dept Humanities & Social Sci, Via Roma 151, I-07100 Sassari, ItalyUniv Sassari, Dept Humanities & Social Sci, Via Roma 151, I-07100 Sassari, Italy