Color and Luminance Influence, but Can Not Explain, Binocular Rivalry Onset Bias

Stanley, Jody; Forte, Jason D.; Cavanagh, Patrick; Carter, Olivia

doi:10.1167/13.9.935

Cited by 2 publications

(9 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In general, onset rivalry has been shown to be more sensitive to early visual features than sustained rivalry; for example, small imbalances in contrast and luminance between stimuli strongly affect onset rivalry, leaving sustained rivalry almost unchanged. Equating the strength of the rivalrous images does not annul the stable and consistent bias shown by every observer at the onset of rivalry while balancing stimulus strength equates sustained rivalry dominance (Stanley, Carter, & Forte, 2011). Because of the differences between onset and sustained rivalry, it is likely that the two phenomena are mediated by different mechanisms, and these mechanisms show different susceptibility to the effects of visual deprivation.…”

Section: Discussionmentioning

confidence: 98%

Long-term effects of monocular deprivation revealed with binocular rivalry gratings modulated in luminance and in color

2013

View full text Add to dashboard Cite

During development, within a specific temporal window called the critical period, the mammalian visual cortex is highly plastic and literally shaped by visual experience; to what extent this extraordinary plasticity is retained in the adult brain is still a debated issue. We tested the residual plastic potential of the adult visual cortex for both achromatic and chromatic vision by measuring binocular rivalry in adult humans following 150 minutes of monocular patching. Paradoxically, monocular deprivation resulted in lengthening of the mean phase duration of both luminance-modulated and equiluminant stimuli for the deprived eye and complementary shortening of nondeprived phase durations, suggesting an initial homeostatic compensation for the lack of information following monocular deprivation. When equiluminant gratings were tested, the effect was measurable for at least 180 minutes after reexposure to binocular vision, compared with 90 minutes for achromatic gratings. Our results suggest that chromatic vision shows a high degree of plasticity, retaining the effect for a duration (180 minutes) longer than that of the deprivation period (150 minutes) and twice as long as that found with achromatic gratings. The results are in line with evidence showing a higher vulnerability of the P pathway to the effects of visual deprivation during development and a slower development of chromatic vision in humans.

show abstract

Section: Discussionmentioning

confidence: 98%

Long-term effects of monocular deprivation revealed with binocular rivalry gratings modulated in luminance and in color

2013

View full text Add to dashboard Cite

show abstract

“…One of the most striking characteristics of onset rivalry is the existence of strong and stable localized biases that vary across the visual field both within and between subjects ( Carter and Cavanagh, 2007 ; Stanley et al, 2011 ; see Figure 1 ). For example, one area of the visual field may have a strong onset rivalry bias, so that the same target is seen first on almost every trial.…”

Section: Onset Biases Across the Visual Fieldmentioning

confidence: 99%

“…Unlike sustained rivalry, however, the initial presentation of balanced stimuli will not necessarily result in an equal likelihood of either target gaining dominance at onset. At the onset of rivalry, strong and consistent onset biases remain after minimizing the luminance and contrast differences by calibrating the stimuli separately for each individual and in each location of the visual field ( Stanley et al, 2011 ; see Figures 2A – C ). The persistence of the localized onset bias suggests that other endogenous factors determine onset dominance.…”

Section: Onset Biases Across the Visual Fieldmentioning

confidence: 99%

“…The persistence of the localized onset bias suggests that other endogenous factors determine onset dominance. For example, the fact that swapping the eye of presentation of the calibrated images has led to complete reversal of perceived color in some areas, suggests that regions of monocular dominance may also have an influence on onset rivalry ( Stanley et al, 2011 ).…”

Section: Onset Biases Across the Visual Fieldmentioning

confidence: 99%

“…As these onset studies show, initial dominance is particularly sensitive to zones of monocular dominance that exist across the visual field. However, the substantial individual difference in the pattern of ocular dominance seen with a range of rivalry stimuli ( Kalisvaart et al, 2011 ; Stanley et al, 2011 ), and the fact that hemifield effects are not always seen if the rivaling targets are not carefully calibrated ( Carter and Cavanagh, 2007 ) shows that monocular dominance cannot fully explain the biases in onset rivalry (see Figure 2 ).…”

Section: Low-level Effects On Onset Dominancementioning

confidence: 99%

See 2 more Smart Citations

Onset rivalry: the initial dominance phase is independent of ongoing perceptual alternations

Stanley¹

2011

Front. Hum. Neurosci.

View full text Add to dashboard Cite

Binocular rivalry has been used to study a wide range of visual processes, from the integration of low-level features to the selection of signals that reach awareness. However, many of these studies do not distinguish between early and late phases of rivalry. There is clear evidence that the “onset” stage of rivalry is characterized by stable, yet idiosyncratic biases that are not evident in the average dominance of sustained rivalry viewing. Low-level stimulus features also have robust effects in the onset phase that are not seen in sustained rivalry, suggesting these phases may be driven at least partly by different neural mechanisms. The effects of high-level cognitive and affective factors at onset are less clear but also show differences from their effects in sustained viewing. These findings have important implications for the interpretation of any rivalry experiments using brief presentation paradigms and for understanding how the brain copes with binocular discrepancies in natural viewing conditions in which our eyes constantly move around an ever-changing environment. This review will summarize current research and explore the factors influencing this “onset” stage.

show abstract

Color and Luminance Influence, but Can Not Explain, Binocular Rivalry Onset Bias

Cited by 2 publications

References 0 publications

Long-term effects of monocular deprivation revealed with binocular rivalry gratings modulated in luminance and in color

Long-term effects of monocular deprivation revealed with binocular rivalry gratings modulated in luminance and in color

Onset rivalry: the initial dominance phase is independent of ongoing perceptual alternations

Contact Info

Product

Resources

About