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Microsaccades mediate perceptual alternations in Monet's "Impression, sunrise".
Alexander, Robert G; Venkatakrishnan, Ashwin; Chanovas, Jordi; Macknik, Stephen L; Martinez-Conde, Susana.
Afiliação
  • Alexander RG; Department of Ophthalmology, SUNY Downstate Health Sciences University, Brooklyn, NY, USA.
  • Venkatakrishnan A; Department of Ophthalmology, SUNY Downstate Health Sciences University, Brooklyn, NY, USA.
  • Chanovas J; Department of Ophthalmology, SUNY Downstate Health Sciences University, Brooklyn, NY, USA.
  • Macknik SL; Graduate Program in Neural and Behavioral Science, SUNY Downstate Health Sciences University, Brooklyn, NY, USA.
  • Martinez-Conde S; Department of Ophthalmology, SUNY Downstate Health Sciences University, Brooklyn, NY, USA.
Sci Rep ; 11(1): 3612, 2021 02 11.
Article em En | MEDLINE | ID: mdl-33574386
ABSTRACT
Troxler fading, the perceptual disappearance of stationary images upon sustained fixation, is common for objects with equivalent luminance to that of the background. Previous work showed that variations in microsaccadic rates underlie the perceptual vanishing and intensification of simple stimuli, such as Gabor patches. Here, we demonstrate that microsaccade dynamics also contribute to Troxler fading and intensification during the viewing of representational art. Participants fixated a small spot while viewing either a Gabor patch on a blank background, or Monet's painting "Impression, Sunrise." They continuously reported, via button press/release, whether the Gabor patch, or the sun in Monet's painting, was fading versus intensifying, while their eye movements were recorded with high precision. Microsaccade rates peaked before reports of increased visibility, and dropped before reports of decreased visibility or fading, both when viewing Gabor patches and Monet's sun. These results reveal that the relationship between microsaccade production and the reversal and prevention of Troxler fading applies not only to the viewing of contrived stimuli, but also to the observation of "Impression, Sunrise." Whether or not perceptual fading was consciously intended by Monet, our findings indicate that observers' oculomotor dynamics are a contributor to the cornerstone of Impressionism.
Assuntos

Texto completo: 1 Base de dados: MEDLINE Assunto principal: Movimentos Sacádicos / Visão Ocular / Percepção Visual / Movimentos Oculares Limite: Adolescent / Adult / Female / Humans / Male / Middle aged Idioma: En Ano de publicação: 2021 Tipo de documento: Article

Texto completo: 1 Base de dados: MEDLINE Assunto principal: Movimentos Sacádicos / Visão Ocular / Percepção Visual / Movimentos Oculares Limite: Adolescent / Adult / Female / Humans / Male / Middle aged Idioma: En Ano de publicação: 2021 Tipo de documento: Article