Spontaneous Necker-Cube Reversals are not that Spontaneous DOI Creative Commons

Mareike Wilson,

Lukas Hecker, Ellen Joos

et al.

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2023, Volume and Issue: unknown

Published: March 7, 2023

Abstract During observation of the ambiguous Necker cube, our perception suddenly reverses between two about equally possible 3D interpretations. passive observation, perceptual reversals seem to be sudden and spontaneous. A number theoretical approaches postulate destabilization neural representations as a precondition for spontaneous figures. In current study, we focused on EEG correlates destabilization, that may allow predict an upcoming reversal. We presented cube stimuli in onset-paradigm investigated processes underlying endogenous compared stability across consecutive stimulus presentations. separate experimental condition, disambiguated variants were alternated randomly, exogenously induce reversals. immediately before during with corresponding time windows induced variants. For stimuli, found earliest differences reversal trials already one second occurred, at bilateral parietal electrodes. The traces remained similar until approximately 1100 ms perceived reversal, became maximally different around 890 (p=7.59*10 −6 , Cohen’s d=1.35) shortly offset preceding No such patterns case identified effects reflect destabilized states representations, related They further indicate are most probably not generally thought. Rather, occur over longer scale, least event.

Language: Английский

Spontaneous Necker-cube reversals may not be that spontaneous DOI Creative Commons

Mareike Wilson,

Lukas Hecker, Ellen Joos

et al.

Frontiers in Human Neuroscience, Journal Year: 2023, Volume and Issue: 17

Published: May 30, 2023

During observation of the ambiguous Necker cube, our perception suddenly reverses between two about equally possible 3D interpretations. passive observation, perceptual reversals seem to be sudden and spontaneous. A number theoretical approaches postulate destabilization neural representations as a pre-condition for figures. In current study, we focused on Electroencephalogram (EEG) correlates destabilization, that may allow prediction an upcoming reversal.We presented cube stimuli in onset-paradigm investigated processes underlying endogenous compared stability across consecutive stimulus presentations. separate experimental condition, disambiguated variants were alternated randomly, exogenously induce reversals. We EEG immediately before during with corresponding time windows induced variants.For stimuli, found earliest differences reversal trials already 1 s occurred, at bilateral parietal electrodes. The traces remained similar until approximately 1100 ms perceived reversal, became maximally different around 890 (p = 7.59 × 10-6, Cohen's d 1.35) shortly offset preceding reversal. No such patterns case variants.The identified effects reflect destabilized states representations, related They further indicate spontaneous are most probably not generally thought. Rather, occur over longer scale, least event, despite event being by viewer.

Language: Английский

Citations

2
Spontaneous Necker-Cube Reversals are not that Spontaneous DOI Creative Commons

Mareike Wilson,

Lukas Hecker, Ellen Joos

et al.

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2023, Volume and Issue: unknown

Published: March 7, 2023

Abstract During observation of the ambiguous Necker cube, our perception suddenly reverses between two about equally possible 3D interpretations. passive observation, perceptual reversals seem to be sudden and spontaneous. A number theoretical approaches postulate destabilization neural representations as a precondition for spontaneous figures. In current study, we focused on EEG correlates destabilization, that may allow predict an upcoming reversal. We presented cube stimuli in onset-paradigm investigated processes underlying endogenous compared stability across consecutive stimulus presentations. separate experimental condition, disambiguated variants were alternated randomly, exogenously induce reversals. immediately before during with corresponding time windows induced variants. For stimuli, found earliest differences reversal trials already one second occurred, at bilateral parietal electrodes. The traces remained similar until approximately 1100 ms perceived reversal, became maximally different around 890 (p=7.59*10 −6 , Cohen’s d=1.35) shortly offset preceding No such patterns case identified effects reflect destabilized states representations, related They further indicate are most probably not generally thought. Rather, occur over longer scale, least event.

Language: Английский

Citations

1