Repeated Contrast Adaptation Does Not Cause Habituation of the Adapter

Dong, Xue; Du, Xinxin; Bao, Min

doi:10.3389/fnhum.2020.589634

Cited by 8 publications

(12 citation statements)

References 36 publications

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“…To focus on the electrodes with sufficiently strong responses, for each electrode we compared the average SSVEP amplitude for both eyes in the pre- and post-tests with the grand mean amplitude across all the electrodes and subjects by using a one-sample t -test ( Huang et al. 2018 ; Dong et al. 2020 ; Lyu et al.…”

Section: Methodsmentioning

confidence: 99%

The role of eye-specific attention in ocular dominance plasticity

et al. 2022

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It is well known how selective attention biases information processing in real time, but few work investigates the aftereffects of prolonged attention, let alone the underlying neural mechanisms. To examine perceptual aftereffect after prolonged attention to a monocular pathway, movie images played normally were presented to normal adult’s one eye (attended eye), while movie images of the same episode but played backwards were presented to the opposite eye (unattended eye). One hour of watching this dichoptic movie caused a shift of perceptual ocular dominance towards the unattended eye. Interestingly, the aftereffect positively correlated with the advantage of neural activity for the attended-eye over unattended-eye signals at the frontal electrodes measured with steady-state visual evoked potentials. Moreover, the aftereffect disappeared when interocular competition was minimized during adaptation. These results suggest that top-down eye-specific attention can induce ocular dominance plasticity through binocular rivalry mechanisms. The present study opens the route to explain at least part of short-term ocular dominance plasticity with the ocular-opponency-neuron model, which may be an interesting complement to the homeostatic compensation theory.

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Section: Methodsmentioning

confidence: 99%

The role of eye-specific attention in ocular dominance plasticity

et al. 2022

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“…20 If they do, then perceptual responses after repeated episodes of short-term MD should wane over time in line with what is known about contrast adaptation. [21][22][23] As previously mentioned, similarities are their dynamics from single sessions and the fact that they both involve the removal of contrast to one eye. Also, there are some differences between the two phenomena.…”

Section: Discussionmentioning

confidence: 88%

“…[21][22][23][24][25][26] Previous studies reported that perceptual deterioration is observed when six to eight (but not more) repetitions of adaptation are introduced in a cluster. 21,[27][28][29] If perceptual deterioration is also present in the effect of short-term MD, its effect too should decrease after repeated periods of short-term MD, supporting that both contrast adaptation and the effect of short-term MD could share the same neural basis. In addition, if shortterm MD is incorporated in clinical settings for adults with impaired binocular vision, it will be preferable if each session of short-term MD induces a maximal effect because the treatment protocol can involve consecutive periods of short-term MD across weeks or months and be more likely to restore long-term eye balance.…”

Section: O R I G I N a L A R T I C L E Daily Dose-response From Short...mentioning

confidence: 99%

“…However, they are much smaller if the eye had previously experienced multiple periods of the same adaptation to the same stimulus for consecutive days. 21,22 The reduced sensitivity in producing perceptual changes after repeated periods of visual adaptation is referred to as perceptual deterioration. [21][22][23][24][25][26] Previous studies reported that perceptual deterioration is observed when six to eight (but not more) repetitions of adaptation are introduced in a cluster.…”

Section: O R I G I N a L A R T I C L E Daily Dose-response From Short...mentioning

confidence: 99%

“…21,22 The reduced sensitivity in producing perceptual changes after repeated periods of visual adaptation is referred to as perceptual deterioration. [21][22][23][24][25][26] Previous studies reported that perceptual deterioration is observed when six to eight (but not more) repetitions of adaptation are introduced in a cluster. 21,[27][28][29] If perceptual deterioration is also present in the effect of short-term MD, its effect too should decrease after repeated periods of short-term MD, supporting that both contrast adaptation and the effect of short-term MD could share the same neural basis.…”

Section: O R I G I N a L A R T I C L E Daily Dose-response From Short...mentioning

confidence: 99%

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Daily dose–response from short‐term monocular deprivation in adult humans

Zou,

Zhou,

Hess

et al. 2024

Ophthalmic Physiologic Optic

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Short‐term monocular deprivation (MD) shifts sensory eye balance in favour of the previously deprived eye. The effect of MD on eye balance is significant but brief in adult humans. Recently, researchers and clinicians have attempted to implement MD in clinical settings for adults with impaired binocular vision. Although the effect of MD has been studied in detail in single‐session protocols, what is not known is whether the effect of MD on eye balance deteriorates after repeated periods of MD (termed ‘perceptual deterioration’). An answer to this question is relevant for two reasons. Firstly, the effect of MD (i.e., dose‐response) should not decrease with repeated use if MD is to be used therapeutically (e.g., daily for weeks). Second, it bears upon the question of whether the neural basis of the effects of MD and contrast adaptation, a closely related phenomenon, is the same. The sensory change from contrast adaptation depends on recent experience. If the observer has recently experienced the same adaptation multiple times for consecutive days, then the adaptation effect will be smaller because contrast adaptation exhibits perceptual deterioration, so it is of interest to know if the effects of MD follow suit. This study measured the effect of 2‐h MD for seven consecutive days on binocular balance of 15 normally sighted adults. We found that the shift in eye balance from MD stayed consistent, showing no signs of deterioration after subjects experienced multiple periods of MD. This finding shows no loss of effectiveness of repeated daily doses of MD if used therapeutically to rebalance binocular vision in otherwise normal individuals. Furthermore, ocular dominance plasticity, which is the basis of the effects of short‐term MD, does not seem to share the property of ‘perceptual deterioration’ with contrast adaptation, suggesting different neural bases for these two related phenomena.

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Laplacian reference is optimal for steady-state visual-evoked potentials

Zhang

Valsecchi

Gegenfurtner

et al. 2023

Journal of Neurophysiology

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Steady-state visual evoked potentials (SSVEPs) are widely used in human neuroscience studies and applications such as brain-computer interfaces. Surprisingly, no previous study has systematically evaluated different reference methods for SSVEP analysis, despite that signal reference is crucial for the proper assessment of neural activities. In the present study, using four datasets from our previous SSVEP studies (1-3) and three public datasets from other studies (4-6), we compared four reference methods: monopolar reference, common average reference, averaged-mastoids reference, and Laplacian reference. The quality of the resulting SSVEP signals was compared in terms of both signal-to-noise ratios (SNRs) and reliability. The results showed that Laplacian reference, which uses signals at the maximally activated electrode after subtracting the average of the nearby electrodes to reduce common noise, gave rise to the highest SNRs. Furthermore, the Laplacian reference resulted in SSVEP signals that were highly reliable across recording sessions or trials. These results suggest that Laplacian reference is optimal for SSVEP studies and applications. Laplacian reference is especially advantageous for SSVEP experiments where short preparation time is preferred, since it requires only data from the maximally activated electrode and a few surrounding electrodes.

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Repeated Contrast Adaptation Does Not Cause Habituation of the Adapter

Cited by 8 publications

References 36 publications

The role of eye-specific attention in ocular dominance plasticity

The role of eye-specific attention in ocular dominance plasticity

Daily dose–response from short‐term monocular deprivation in adult humans

Laplacian reference is optimal for steady-state visual-evoked potentials

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