Abstract:
:How can our percept spontaneously change while the observed object stays unchanged? This happens with ambiguous figures, like the Necker cube. Explanations favor either bottom-up factors in early visual processing, or top-down factors near awareness. The EEG has a high temporal resolution, so event related potentials (ERPs) may help to throw light on these alternative explanations. However, the precise point in time of neural correlates of perceptual reversal is difficult to estimate. We developed a paradigm that overcomes this problem and found an early (120 ms) occipital ERP signal correlated with endogenous perceptual reversal. Parallels of ambiguous-figure-reversal to binocular-rivalry-reversals are explored.
journal_name
Vision Resjournal_title
Vision researchauthors
Kornmeier J,Bach Mdoi
10.1016/j.visres.2004.10.006subject
Has Abstractpub_date
2005-04-01 00:00:00pages
955-60issue
8eissn
0042-6989issn
1878-5646pii
S0042-6989(04)00515-2journal_volume
45pub_type
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