A color aftereffect contingent on complex pattern features

Cavill, John; Robinson, J. O.

doi:10.3758/bf03199407

Cited by 8 publications

(7 citation statements)

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“…They report data that indicate that the original curvature results can be accounted for in terms of color adaptation of orientation-specific neural units. Riggs (1974) has raised objections to some of the new data and their interpretation, and Cavill and Robinson (1976) have presented further data which they claim cannot be accounted for in terms of color adaptation of orientation-specific neu-. ral units.…”

Section: Concluding Commentsmentioning

confidence: 99%

A reevaluation of angle-contingent color aftereffects

Hayman

Allan

1980

Perception & Psychophysics

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It has been argued that adaptation to a series of angles with vertices pointing up and illuminated in one color, and to angles with vertices pointing down and illuminated in the opponent color, results in color aftereffects that are contingent on angle direction. In the present paper, using a number of test figures, we demonstrate that adaptation to these ascending/descending angles results in color aftereffects that can be accounted for in terms of spatially localized, orientation-color pairings. In the light of our results, we suggest that previous inferences concerning angle-contingent color aftereffects should be reconsidered.Contingent aftereffects, originally reported by McCollough (1965), are of theoretical interest, not only because of their remarkable persistence over time, but also as a possible methodology for exploring feature-detector models of human visual perception. McCollough (1965) described an orientationcontingent color aftereffect. During a 3-min adaptation period, her subjects inspected two figures that alternated every few seconds. Under one condition, one adaptation figure consisted of black vertical bars illuminated by orange light and the other consisted of black horizontal bars illuminated by blue light. During the test phase, the subjects viewed an achromatic figure, half of which consisted of black vertical bars on a white background and the other half, of black horizontal bars on a white background. The subjects reported colored aftereffects which were contingent on line orientation. For the above condition, the white background of the vertical bars appeared bluish and the white background of the horizontal bars appeared orangish. This orientationcontingent color aftereffect was interpreted by McCollough (1965) as psychophysical evidence for neural units that are both color-and orientationspecific. She argued that the aftereffect could be understood in terms of color adaptation of orientationspecific edge detectors.Since the original report by McCollough (1965), color aftereffects contingent on movement direction (e.g

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Section: Concluding Commentsmentioning

confidence: 99%

A reevaluation of angle-contingent color aftereffects

Hayman

Allan

1980

Perception & Psychophysics

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“…In fact, there has even been debate about aftereffects contingent on features such as curvature and angle. Although some investigators claim to have found color aftereffects contingent on curvature (Cavill & Robinson, 1976;Riggs, 1973Riggs, , 1974White & Riggs, 1974) or on angle (White & Riggs, 1974), others have argued that these aftereffects are really contingent on orientation (Allan & Hayman, 1982;Crassini & Over, 1975;Hayman & Allan, 1980;MacKay & MacKay, 1974;Sigel & Nachmias, 1975;Stromeyer, 1974).…”

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confidence: 99%

Color aftereffect contingent on text

Allan

Siegel

Collins

et al. 1989

Perception & Psychophysics

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During adaptation, two different letter strings (each five or six letters) were presented to subjects alternately, one in green and the other in magenta. The extent to which these letter strings subsequently elicited a color aftereffect was assessed. In different experiments, the chromatic letter strings consisted of words and nonwords. The results indicated that letter strings that form English words can contingently elicit a color aftereffect. This was the case even when the words were anagrams. There was no evidence that nonword letter strings could contingently elicit such an aftereffect, even when the nonwords conformed to English orthography. The results are relevant to understanding other contingent color aftereffects

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“…Attempts to explain the McCollough effect by simple afterimages have failed (Cavill & Robinson, 1976;Harris & Gibson, 1968). In particular, an after-image explanation of the observed interaction between local and global processes would not hold since the V and C parameters of the probe items are linearly related (Table l ) , and the left and right randomization procedure of presenting such probes guarantees that the effect is not localized to particular retinally adapted areas (Harris & Gibson, 1968).…”

Section: Discussionmentioning

confidence: 99%

Frequency and orientation interactions in the mccollough effect: Interchannel effects?

Caelli

O’Neill

Millar

1977

Australian Journal of Psychology

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Previous explanations of the McCollough effect propose that the colour changes are due to neural adaptation of detectors in the visual system tuned to specific spatiechromatic parameters. In particular, the effect is known to be induced by either spatial frequency components or orientations of bar gratings of complementary colours. However, recent evidence indicates that the effect is not restricted to grating stimuli and that, in these circumstances, it may be induced by joint Occurrences of orientation. curvature and frequency conditions. This experiment was conducted to investigate whether the orientation and Frequency parameters have an additive effect on inducing the phenomena, or whether both parameters interact or suppress each other in inducing the effect. The results indicate that both channels can induce the aftereffect in complex patterns, but that orientation specificity seems to be largely enhanced or inhibited by frequency components of the stimulus.Requests for reprints should be sent to T. M.

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A color aftereffect contingent on complex pattern features

Cited by 8 publications

References 12 publications

A reevaluation of angle-contingent color aftereffects

A reevaluation of angle-contingent color aftereffects

Color aftereffect contingent on text

Frequency and orientation interactions in the mccollough effect: Interchannel effects?

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