@article{ohla_circles_2005,
	title = {Circles are different: the perception of {Glass} patterns modulates early event-related potentials},
	volume = {45},
	issn = {0042-6989},
	url = {http://oszilla.hgs.hu-berlin.de/Publicationlist/2005/Ohla_etall_Vision Res_2005.pdf},
	doi = {10.1016/j.visres.2005.03.015},
	abstract = {Glass patterns are randomized dot arrays that generate the perception of a global structure. They consist of correlated dot pairs which are generated by geometric transformations. The present study employed behavioral and event-related brain potential (ERP) measures to characterize the underlying neuronal processing when such patterns are perceived. Stimuli were circular, parallel, and randomized Glass patterns presented in two isoluminant colors using a choice reaction paradigm. Sixteen subjects were instructed to differentiate between colors with a button-press response. The N170 component increased in amplitude for circular patterns, and this effect was most pronounced bilaterally over occipito-temporal areas. The results suggest that the global perception of form generated by Glass patterns occurs at a stage of visual processing past area V1.},
	number = {20},
	journal = {Vision Res},
	author = {Ohla, Kathrin and Busch, Niko A. and Dahlem, Markus A. and Herrmann, Christoph S.},
	month = sep,
	year = {2005},
	keywords = {Adult, Electroencephalography, Evoked Potentials, Female, Humans, Male, Models, Neurological, Optical Illusions, Psychophysics, Visual, Visual Perception},
	pages = {2668--2676},
}

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