Luminosity- A perceptual "feature" of light-emitting objects?. Correani, A., Scott-Samuel, N. E., & Leonards, U. Vision Research, 46(22):3915--3925, 2006. 00000
Luminosity- A perceptual "feature" of light-emitting objects? [link]Paper  abstract   bibtex   
Light-emitting objects are perceived as qualitatively different from light-reflecting objects, and the two categories elicit different cortical activity. However, it is unclear whether object luminosity is treated as an independent visual feature, comparable to orientation, motion or colour. Visual search tasks revealed that light-emitting targets led to efficient search when presented with light-reflecting distractors of similar luminance, but this efficiency was induced by the presence of luminance gradients producing the percept of luminosity rather than by luminosity itself. This implies that luminance gradients (not object luminosity) are encoded as features, questioning the existence of specific sensory mechanisms to detect light-emitting objects. © 2006 Elsevier Ltd. All rights reserved.
@article{correani_luminosity-_2006,
	title = {Luminosity- {A} perceptual "feature" of light-emitting objects?},
	volume = {46},
	shorttitle = {Luminosity- {A} perceptual "feature" of light-emitting objects?},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-33748563994&partnerID=40},
	abstract = {Light-emitting objects are perceived as qualitatively different from light-reflecting objects, and the two categories elicit different cortical activity. However, it is unclear whether object luminosity is treated as an independent visual feature, comparable to orientation, motion or colour. Visual search tasks revealed that light-emitting targets led to efficient search when presented with light-reflecting distractors of similar luminance, but this efficiency was induced by the presence of luminance gradients producing the percept of luminosity rather than by luminosity itself. This implies that luminance gradients (not object luminosity) are encoded as features, questioning the existence of specific sensory mechanisms to detect light-emitting objects. © 2006 Elsevier Ltd. All rights reserved.},
	number = {22},
	journal = {Vision Research},
	author = {Correani, A. and Scott-Samuel, N. E. and Leonards, U.},
	year = {2006},
	note = {00000},
	keywords = {Brightness, Features, Luminosity, Visual attention, Visual search},
	pages = {3915--3925}
}
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