Induction of the McCollough effect I: Figural variables

Foreit, Karen G.; Ambler, Bruce A.

doi:10.3758/bf03206101

Cited by 20 publications

(60 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The results from this experiment are in agreement with those of Foreit and Ambler (1978). CCAEs can be induced with orthogonally oriented and complementarily colored single bars, but apparently not with orthogonally oriented single black bars on complementarily colored backgrounds.…”

Section: Methodssupporting

confidence: 89%

“…As Foreit and Ambler (1978) suggested, black bar size relative to colored background size is an important factor. When the black bar was small relative to the colored background, as in Foreit and Ambler, as in Experiment 1, and as in the bars/ground L group of the present experiment, orientation CCAEs were not induced.…”

Section: Resultsmentioning

confidence: 96%

“…The range of values for #G is 0-10 (0 = never judged as green, 10 = always judged as green). Figure I Foreit and Ambler (1978) noted that the ratio of black area to colored area was different in the two induction conditions; specifically, that the black-to-color ratio was greater in the colored-bar condition than in the black-bar condition. They suggested that increasing the black-tocolor ratio in black-bar induction might result in an orientation CCAE, but they did not investigate this possibility.…”

Section: Resultsmentioning

confidence: 97%

“…Foreit and Ambler (1978) demonstrated that orientation CCAEs can also be induced with orthogonally oriented ure lA shows that, for the colored-bar group, #G decreased from pre-to postinduction for the horizontal bar and increased for the vertical bar, indicating the induction of orientation CCAEs. Figure 1B shows that, for the black-bar group, there was little change in #G from preto postinduction for both orientations, suggesting that orientation CCAEs were not induced.…”

Section: Methodsmentioning

confidence: 92%

“…In another experiment, Foreit and Ambler (1978) attempted to induce CCAEs with geometric forms (form induction) constructed from different arrangements of the same colored bars. They alternated two outline geometric forms presented in complementary colors (e.g., a green cross and a magenta square).…”

Section: Geometric Form Inductionmentioning

confidence: 99%

See 4 more Smart Citations

Contingent color aftereffects: Reassessing old conclusions

Allan

Siegel

1997

Perception & Psychophysics

View full text Add to dashboard Cite

Section: Methodssupporting

confidence: 89%

Section: Resultsmentioning

confidence: 96%

Section: Resultsmentioning

confidence: 97%

Section: Methodsmentioning

confidence: 92%

Section: Geometric Form Inductionmentioning

confidence: 99%

See 3 more Smart Citations

Contingent color aftereffects: Reassessing old conclusions

Allan

Siegel

1997

Perception & Psychophysics

View full text Add to dashboard Cite

Constraints on perceptual learning: objects and dimensions

Bedford

1995

Cognition

View full text Add to dashboard Cite

Local and global factors in spatially- contingent coloured aftereffects

Broerse

O’Shea

1995

Vision Research

View full text Add to dashboard Cite

Dodwell and O'Shea's [(1987) Vision Research, 27, 569-580] conclusions that contingent coloured aftereffects (CAEs) depend on gobal pattern organization were investigated in four experiments. In Expt 1, we replicated findings that CAEs can be induced with complex patterns (concentric circles; radial spokes) under conditions of systematic eye movements. Contrary to Dodwell and O'Shea's argument that eye movements should uniformly cancel local orientation-colour contingencies, leaving only global effects, we reduced CAE magnitude by halving the diameter of the test stimuli. This suggests that cancellation did not occur uniformly over whole patterns, and that CAEs observed on these patterns are the residuals of uncancelled local orientation-colour contingencies. In Expt 2 we used central-fixation induction procedures to demonstrate that it is possible to induce CAEs with randomly-organized and locally-orthogonal orientation components. These findings are inconsistent with Dodwell and O'Shea's failure to observe CAEs under these conditions, and with their conclusion that global organization is necessary for CAE induction. However, CAEs induced with randomly-organized components were significantly weaker than those induced with globally-organized components. We examined the contribution of global organization in two additional experiments. In Expt 3 we induced CAEs with randomly-organized components under conditions in which the need for central fixation was removed, and found that CAE strength was directly related to the organization as well as the density of local-orientation components. In Expt 4, we found that the global organization of local-orientation components enhanced CAE strength only in regions away from the edges of these components: pattern organization did not affect the strength of CAEs at edges. We interpret these findings as evidence that CAEs may involve separate edge- and spread-colour components, and conclude that such components may account for observations previously attributed to global pattern geometry.

show abstract

Induction of the McCollough effect I: Figural variables

Cited by 20 publications

References 10 publications

Contingent color aftereffects: Reassessing old conclusions

Contingent color aftereffects: Reassessing old conclusions

Constraints on perceptual learning: objects and dimensions

Local and global factors in spatially- contingent coloured aftereffects

Contact Info

Product

Resources

About