An advanced perception model combining brain noise and adaptation

Chholak, Parth; Hramov, Alexander E.; Pisarchik, Alexander N.

doi:10.1007/s11071-020-05741-0

Cited by 15 publications

(13 citation statements)

References 43 publications

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“…Another possible reason for the preference of the left-cube orientation can be that in our everyday lives, we see the left-oriented cube more often and hence the perceptual stability of the left-cube orientation is higher (Chholak et al, 2020a ). This form of attention in perceptual selection that does not depend upon ocular, spatial, or feature-based mechanisms but solely on the representational object it corresponds to, is called object-based attention and has shown to determine dominance in bistable perception (Mitchell et al, 2004 ).…”

Section: Resultsmentioning

confidence: 99%

“…With regard to degrees of freedom, the simplest form of multistable perception is bistable perception: when two different interpretations of the same stimulus are possible. As a result of extensive research on this topic over the last two decades, many descriptive models were developed (Moreno et al, 2007 ; Shpiro et al, 2009 ; Huguet et al, 2014 ; Dotov et al, 2019 ; Meilikhov and Farzetdinova, 2019 ; Chholak et al, 2020a ). The switches between alternate percepts were suggested to be driven by either stochastic processes in the brain (Moreno et al, 2007 ; Pisarchik et al, 2014 ) due to random neurophysiological activity and neuronal adaptation (Huguet et al, 2014 ; Dotov et al, 2019 ), which is defined as slow destabilization of currently dominant perception after being active for a prolonged time, or due to both noise and adaptation (Shpiro et al, 2009 ; Huguet et al, 2014 ; Chholak et al, 2020a ).…”

Section: Introductionmentioning

confidence: 99%

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Voluntary and Involuntary Attention in Bistable Visual Perception: A MEG Study

Chholak

Maksimenko

Hramov

et al. 2020

Front. Hum. Neurosci.

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In this study, voluntary and involuntary visual attention focused on different interpretations of a bistable image, were investigated using magnetoencephalography (MEG). A Necker cube with sinusoidally modulated pixels' intensity in the front and rear faces with frequencies 6.67 Hz (60/9) and 8.57 Hz (60/7), respectively, was presented to 12 healthy volunteers, who interpreted the cube as either left- or right-oriented. The tags of these frequencies and their second harmonics were identified in the average Fourier spectra of the MEG data recorded from the visual cortex. In the first part of the experiment, the subjects were asked to voluntarily control their attention by interpreting the cube orientation as either being on the left or right. Accordingly, we observed the dominance of the corresponding spectral component, and voluntary attention performance was measured. In the second part of the experiment, the subjects were asked to focus their gaze on a red marker at the center of the cube image without putting forth effort in its interpretation. The alternation of the dominant spectral energies at the second harmonics of the stimulation frequencies was treated as changes in the cube orientation. Based on the results of the first experimental stage and using a wavelet analysis, we developed a method which allowed us to identify the currently perceived cube orientation. Finally, we characterized involuntary attention using the distribution of dominance times when focusing attention on one of the cube orientations, which was related to voluntary attention performance and brain noise. In particular, we confirmed our hypothesis that higher attention performance is associated with stronger brain noise.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Voluntary and Involuntary Attention in Bistable Visual Perception: A MEG Study

Chholak

Maksimenko

Hramov

et al. 2020

Front. Hum. Neurosci.

Self Cite

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“…Recently, multi-stability has also been associated with different oscillatory states of brain dynamics [41,42]. In particular, perceptual neuronal states models based on noise and adaptation have been used to qualitatively describe neurophysiological experiments on human visual bistable perception [43,44]. This model alternates between two different active states and reproduces probability distributions of dominance durations and their relation with the amount of noise.…”

Section: Discussionmentioning

confidence: 99%

Phase bistability between anticipated and delayed synchronization in neuronal populations

Machado

Matias

2020

Phys. Rev. E

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Two dynamical systems unidirectionally coupled in a sender-receiver configuration can synchronize with a nonzero phase-lag. In particular, the system can exhibit anticipated synchronization (AS), which is characterized by a negative phase-lag, if the receiver (R) also receives a delayed negative self-feedback. Recently, AS was shown to occur between cortical-like neuronal populations in which the self-feedback is mediated by inhibitory synapses. In this biologically plausible scenario, a transition from the usual delayed synchronization (DS, with positive phase-lag) to AS can be mediated by the inhibitory conductances in the receiver population. Here we show that depending on the relation between excitatory and inhibitory synaptic conductances the system can also exhibit phase-bistability between anticipated and delayed synchronization. Furthermore, we show that the amount of noise at the receiver and the synaptic conductances can mediate the transition from stable phase-locking to a bistable regime and eventually to a phase-drift (PD). We suggest that our spiking neuronal populations model could be potentially useful to study phase-bistability in cortical regions related to bistable perception.

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“…In neural competition models, noise and adaptation processes are two possible switching mechanisms that account for perceptual alternations [27,54]. In consideration of the experimental constraints on the statistics of alternations (mean of August 15, 2022 11/22 the dominance durations, their coefficient of variation and correlations between successive durations), models must operate with a balance between the noise and adaptation strength [55].…”

Section: Stochastic Influences On Perceptual Switchingmentioning

confidence: 99%

Hierarchical processing underpins competition in tactile perceptual bistability

Darki

Ferrario

Rankin

2022

Preprint

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Ambiguous sensory information can lead to spontaneous alternations between perceptual states, recently shown to extend to tactile perception. The authors recently proposed a simplified form of tactile rivalry which evokes two competing percepts for a fixed difference in input amplitudes across antiphase, pulsatile stimulation of the left and right fingers. This study addresses the need for a tactile rivalry model that captures the dynamics of perceptual alternations and that incorporates the structure of the somatosensory system. The model features hierarchical processing with two stages; a first stage resolves perceptual competition, leading to perceptual alternations; and a second stage encodes perceptual interpretations. The first stage could be located downstream of brainstem nuclei and the second stage could be located within the primary somatosensory cortex (area 3b). The model captures dynamical features specific to the tactile rivalry percepts and produces general characteristics of perceptual rivalry: input strength dependence of dominance times (Levelt's proposition II), short-tailed skewness of dominance time distributions and the ratio of distribution moments. The presented modelling work leads to experimentally testable predictions. The same hierarchical model could generalise to account for percept formation, competition and alternations for bistable stimuli that involve pulsatile inputs from the visual and auditory domains.

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An advanced perception model combining brain noise and adaptation

Cited by 15 publications

References 43 publications

Voluntary and Involuntary Attention in Bistable Visual Perception: A MEG Study

Voluntary and Involuntary Attention in Bistable Visual Perception: A MEG Study

Phase bistability between anticipated and delayed synchronization in neuronal populations

Hierarchical processing underpins competition in tactile perceptual bistability

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