Abstract
Human perception of oriented visual stimuli is biased: some orientations are seen more often than others. We studied how the orientation bias is represented in the electrical brain activity that preceded presentation of ambiguous supra-threshold visual stimuli. We examined scalp EEG over the parieto-occipital regions during 1 sec before stimulus presentation. The alpha activity of pre-stimulus EEG was associated with the orientation bias: the preference for vertical orientation in most observers corresponded to low pre-stimulus alpha power. The results indicate that the orientation bias is encoded in intrinsic properties of ongoing cortical dynamics, forming spontaneous orientation-specific patterns of activity.
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References
Julesz, B., Chang, J.J.: Interaction between pools of binocular disparity detectors tuned to different disparities. Biol. Cybern. 22 (1976) 107–119
Kanizsa, G., Luccio, R.: Multistability as a research tool in experimental phenomenology. In: Kruse P, Stadler M (eds) Ambiguity in mind and nature. Springer, Berlin, Heidelberg, New York (1995) 47–68
Gepshtein, S., Kubovy, M.: Stability and change in perception: spatial organization in temporal context. Exp. Brain Res. 160 (2005) 487–495
Linkenkaer-Hansen, K., Nikulin, V.V., Palva, S., Ilmoniemi, R.J., Palva, J.M.: Prestimulus oscillations enhance psychophysical performance in humans. J. Neurosci. 24 (2004) 10186–90
Mathewson, K.E., Gratton, G., Fabiani, M., Beck, D.M., Ro, T.: To see or not to see: prestimulus alpha phase predicts visual awareness. J. Neurosci. 29 (2009) 2725–32
Kubovy, M.: The perceptual organization of dot lattices. Psychon. Bull. Rev. 1 (1994) 182–190
Kubovy, M., Holcombe, A.O., Wagemans, J.: On the lawfulness of grouping by proximity. Cognitive Psychol. 35 (1998) 71–98
Nikolaev, A.R., Gepshtein, S., Kubovy, M., van Leeuwen, C.: Dissociation of early evoked cortical activity in perceptual grouping. Exp. Brain Res. 186 (2008) 107–122
Klimesch, W., Sauseng, P., Hanslmayr, S.: EEG alpha oscillations: the inhibition-timing hypothesis. Brain Res. Rev. 53 (2007) 63–88
Kenet, T., Bibitchkov, D., Tsodyks, M., Grinvald, A., Arieli, A.: Spontaneously emerging cortical representations of visual attributes. Nature 425 (2003) 954–956
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Nikolaev, A.R., Gepshtein, S., van Leeuwen, C. (2013). Spontaneous EEG Activity and Biases in Perception of Supra-Threshold Stimuli. In: Yamaguchi, Y. (eds) Advances in Cognitive Neurodynamics (III). Springer, Dordrecht. https://doi.org/10.1007/978-94-007-4792-0_39
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DOI: https://doi.org/10.1007/978-94-007-4792-0_39
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