The watercolor illusion and neon color spreading: a unified analysis of new cases and neural mechanisms

Pinna, Baingio; Grossberg, Stephen

doi:10.1364/josaa.22.002207

Cited by 71 publications

(82 citation statements)

References 59 publications

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“…These qualities induce again the emergence of the illusoriness as a sense of strangeness and the singularity of the color that is unexpected and different from the way it appears most of the time. This is also the case in Figure 7a,b, in which new variations of the neon color spreading [10] are illustrated. Under these conditions, the inner green/orange and green/black spreads with phenomenal qualities are analogous to those of Figure 6.…”

Section: J Imaging 2018 4 X For Peer Review 10 Of 23supporting

confidence: 69%

“…The watercolor illusion [8] can be briefly described as a long-range coloration effect sending out from a thin colored line running parallel and contiguous to a darker chromatic contour and imparting a strong figural effect, similar to a bulging volumetric effect, across large areas [8][9][10][11]. Although the watercolor illusion manifests two main effects only, the coloration was noticed, and the second hidden "illusion" (the figural effect) was never detected, although the experimenter suggested the presence of a second illusion to be discovered.…”

Section: J Imaging 2018 4 X For Peer Reviewmentioning

confidence: 99%

“…Pinna & Grossberg [10] showed that both illusions can be reduced to a common two-dots limiting case, based on nearby color transitions.…”

Section: J Imaging 2018 4 X For Peer Review 10 Of 23mentioning

confidence: 99%

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Illusion and Illusoriness of Color and Coloration

2018

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Abstract:In this work, through a phenomenological analysis, we studied the perception of the chromatic illusion and illusoriness. The necessary condition for an illusion to occur is the discovery of a mismatch/disagreement between the geometrical/physical domain and the phenomenal one. The illusoriness is instead a phenomenal attribute related to a sense of strangeness, deception, singularity, mendacity, and oddity. The main purpose of this work is to study the phenomenology of chromatic illusion vs. illusoriness, which is useful for shedding new light on the no-man's land between "sensory" and "cognitive" processes that have not been fully explored. Some basic psychological and biological implications for living organisms are deduced.

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Section: J Imaging 2018 4 X For Peer Review 10 Of 23supporting

confidence: 69%

Section: J Imaging 2018 4 X For Peer Reviewmentioning

confidence: 99%

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Illusion and Illusoriness of Color and Coloration

2018

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“…The distribution of activity across a filling-in stage corresponds to the visual percept. Filling-in effects such as neon-color spreading (Redies & Spillmann, 1981) were integral in the development of the theory, and the theory has subsequently been used to explain other filling-in effects, such as the watercolor illusion (Pinna & Grossberg, 2005).…”

mentioning

confidence: 99%

Modeling filling-in of afterimages

Francis

2010

Attention, Perception, & Psychophysics

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“…The watercolor illusion shows two main effects: a long-range coloration and an objecthole effect across large enclosed areas (Pinna, 1987(Pinna, , 2005(Pinna, , 2008aPinna and Grossberg, 2005;Pinna et al, 2001). This illusion strongly enhances the unilateral belongingness of the boundaries (Rubin, 1915) determining grouping and figure-ground segregation more strongly than the well-known Gestalt principles.…”

Section: Introductionmentioning

confidence: 98%

Probing Perceptual Antinomies with the Watercolor Illusion and Explaining How the Brain Resolves Them

Tanca

Grossberg

Pinna

2010

Seeing and Perceiving

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The purpose of this work is to study how the brain solves perceptual antinomies, induced by the watercolor illusion in the color and in the figure-ground segregation domain, when they are present in different parts of the same object. The watercolor illusion shows two main effects: a long-range coloration and an objecthole effect across large enclosed areas (Pinna, 1987(Pinna, , 2005(Pinna, , 2008aPinna and Grossberg, 2005;Pinna et al., 2001). This illusion strongly enhances the unilateral belongingness of the boundaries (Rubin, 1915) determining grouping and figure-ground segregation more strongly than the well-known Gestalt principles. Due to the watercolor illusion, both the figure and the background assume new properties becoming, respectively, a bulging object and a hole both with a 3-D volumetric appearance (object-hole effect). When the coloration and the object-hole effects induced by the watercolor illusion are opposite (antinomic) within different portions of the same shape, some questions emerge: Do the antinomies split the shape in two parts (a half shape appears as an object and the other half as a hole) or are they solved through a new emergent perceptual result beyond the single effects? Is there a predominance of one component over the other that is less visible or totally invisible? What is perceptible and what is invisible? Is there a wholeness process under conditions where perceptual antinomies coexist? By imparting motion to a watercolored object that gradually should become a hole while overlapping another object placed behind, is the wholeness of the watercolor object weakened or reorganized in a new way? The results of phenomenological experiments suggested that the antinomies tend to be solved through two complement processes of phenomenal wholeness and partialness. These processes are explained in the light of the FACADE neural model of 3-D vision and figure-ground separation (Grossberg, 1994(Grossberg, , 2003, notably of how complementary cortical boundary and surface representations interact with spatial attention to generate conscious percepts of 3-D form and motion.

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The watercolor illusion and neon color spreading: a unified analysis of new cases and neural mechanisms

Cited by 71 publications

References 59 publications

Illusion and Illusoriness of Color and Coloration

Illusion and Illusoriness of Color and Coloration

Modeling filling-in of afterimages

Probing Perceptual Antinomies with the Watercolor Illusion and Explaining How the Brain Resolves Them

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