Stable perception of visually ambiguous patterns

Leopold, David A.; Wilke, Melanie; Maier, Alexander; Logothetis, Nikos K.

doi:10.1038/nn0602-851

Cited by 339 publications

(245 citation statements)

References 26 publications

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“…(b) For fixed blank duration T of f , the average dominance duration decreases with increasing T on . These conclusions agree well with the available experimental results (Leopold et al, 2002;Orbach et al, 1966). We would like to note that when the stimulus turns on after the blank duration, the change itself is expected to cause a measurement.…”

Section: B Periodic Removal Of Stimulussupporting

confidence: 92%

Quantum formalism to describe binocular rivalry

Manousakis

2009

Biosystems

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On the basis of the general character and operation of the process of perception, a formalism is sought to mathematically describe the subjective or abstract/mental process of perception. It is shown that the formalism of orthodox quantum theory of measurement, where the observer plays a key role, is a broader mathematical foundation which can be adopted to describe the dynamics of the subjective experience. The mathematical formalism describes the psychophysical dynamics of the subjective or cognitive experience as communicated to us by the subject. Subsequently, the formalism is used to describe simple perception processes and, in particular, to describe the probability distribution of dominance duration obtained from the testimony of subjects experiencing binocular rivalry. Using this theory and parameters based on known values of neuronal oscillation frequencies and firing rates, the calculated probability distribution of dominance duration of rival states in binocular rivalry under various conditions is found to be in good agreement with available experimental data. This theory naturally explains an observed marked increase in dominance duration in binocular rivalry upon periodic interruption of stimulus and yields testable predictions for the distribution of perceptual alteration in time.

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Section: B Periodic Removal Of Stimulussupporting

confidence: 92%

Quantum formalism to describe binocular rivalry

Manousakis

2009

Biosystems

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“…The 'boosting' hypothesis provides a role for attention and consciousness [38] in perceptual organization, since it states that a potential perceptual organization is strengthened by being experienced. Importantly, it is sufficient to explain the phenomenon of 'perceptual stabilization' whereby the bistable interpretation that was experienced before the interruption of a stimulus is more likely to dominate when the stimulus reappears [19,20]. Imagine that, as is the case for many ambiguous stimuli, which percept is experienced first is random (both interpretations are equally likely, i.e.…”

Section: Appendix Mechanisms Of Plaid Multistabilitymentioning

confidence: 99%

“…Such dynamics are different from those observed in classic examples of visual bistability like binocular rivalry, ambiguous figures or apparent motion. In such instances, when both interpretations are equally likely, which percept is first is random (unless the stimulus was presented a short time before; in that case, 'perceptual stabilization' can occur [19,20]). When the stimulus is biased in favour of one interpretation (for example, higher contrast of the stimulus presented to one eye in binocular rivalry), the first percept typically corresponds to the biased interpretation [21].…”

Section: Introductionmentioning

confidence: 99%

The initial phase of auditory and visual scene analysis

Hupé

Pressnitzer

2012

Phil. Trans. R. Soc. B

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Auditory streaming and visual plaids have been used extensively to study perceptual organization in each modality. Both stimuli can produce bistable alternations between grouped (one object) and split (two objects) interpretations. They also share two peculiar features: (i) at the onset of stimulus presentation, organization starts with a systematic bias towards the grouped interpretation; (ii) this first percept has 'inertia'; it lasts longer than the subsequent ones. As a result, the probability of forming different objects builds up over time, a landmark of both behavioural and neurophysiological data on auditory streaming. Here we show that first percept bias and inertia are independent. In plaid perception, inertia is due to a depth ordering ambiguity in the transparent (split) interpretation that makes plaid perception tristable rather than bistable: experimental manipulations removing the depth ambiguity suppressed inertia. However, the first percept bias persisted. We attempted a similar manipulation for auditory streaming by introducing level differences between streams, to bias which stream would appear in the perceptual foreground. Here both inertia and first percept bias persisted. We thus argue that the critical common feature of the onset of perceptual organization is the grouping bias, which may be related to the transition from temporally/ spatially local to temporally/spatially global computation.

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“…Using this paradigm, it has been shown that the interval between stimuli strongly affects which percept will be dominant on subsequent presentation. Short stimulus intervals (less than 0.5 s) cause many perceptual alterations between subsequent presentations [14,19,23,24], whereas long intervals (greater than 1.0 s) stabilize perception into the same dominant percept for many subsequent presentations [14,19,[23][24][25]. While perceptual stabilization with long interruption intervals is sometimes referred to as perceptual memory, it is unclear whether any high-level memory processes are actually required.…”

Section: Temporal Contextmentioning

confidence: 99%

United we sense, divided we fail: context-driven perception of ambiguous visual stimuli

Klink

Wezel

2012

Phil. Trans. R. Soc. B

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Ambiguous visual stimuli provide the brain with sensory information that contains conflicting evidence for multiple mutually exclusive interpretations. Two distinct aspects of the phenomenological experience associated with viewing ambiguous visual stimuli are the apparent stability of perception whenever one perceptual interpretation is dominant, and the instability of perception that causes perceptual dominance to alternate between perceptual interpretations upon extended viewing. This review summarizes several ways in which contextual information can help the brain resolve visual ambiguities and construct temporarily stable perceptual experiences. Temporal context through prior stimulation or internal brain states brought about by feedback from higher cortical processing levels may alter the response characteristics of specific neurons involved in rivalry resolution. Furthermore, spatial or crossmodal context may strengthen the neuronal representation of one of the possible perceptual interpretations and consequently bias the rivalry process towards it. We suggest that contextual influences on perceptual choices with ambiguous visual stimuli can be highly informative about the neuronal mechanisms of context-driven inference in the general processes of perceptual decision-making.

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Stable perception of visually ambiguous patterns

Cited by 339 publications

References 26 publications

Quantum formalism to describe binocular rivalry

Quantum formalism to describe binocular rivalry

The initial phase of auditory and visual scene analysis

United we sense, divided we fail: context-driven perception of ambiguous visual stimuli

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