Visual exploration dynamics are low-dimensional and driven by intrinsic factors.


Journal

Communications biology
ISSN: 2399-3642
Titre abrégé: Commun Biol
Pays: England
ID NLM: 101719179

Informations de publication

Date de publication:
17 09 2021
Historique:
received: 25 02 2021
accepted: 17 08 2021
entrez: 18 9 2021
pubmed: 19 9 2021
medline: 15 12 2021
Statut: epublish

Résumé

When looking at visual images, the eyes move to the most salient and behaviourally relevant objects. Saliency and semantic information significantly explain where people look. Less is known about the spatiotemporal properties of eye movements (i.e., how people look). We show that three latent variables explain 60% of eye movement dynamics of more than a hundred observers looking at hundreds of different natural images. The first component explaining 30% of variability loads on fixation duration, and it does not relate to image saliency or semantics; it approximates a power-law distribution of gaze steps, an intrinsic dynamic measure, and identifies observers with two viewing styles: static and dynamic. Notably, these viewing styles were also identified when observers look at a blank screen. These results support the importance of endogenous processes such as intrinsic dynamics to explain eye movement spatiotemporal properties.

Identifiants

pubmed: 34535744
doi: 10.1038/s42003-021-02608-x
pii: 10.1038/s42003-021-02608-x
pmc: PMC8448835
doi:

Types de publication

Journal Article Research Support, Non-U.S. Gov't

Langues

eng

Sous-ensembles de citation

IM

Pagination

1100

Subventions

Organisme : Fundação Bial (Bial Foundation)
ID : 361/18
Organisme : Fundação Bial (Bial Foundation)
ID : 361/18

Informations de copyright

© 2021. The Author(s).

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Auteurs

Andrea Zangrossi (A)

Department of Neuroscience, University of Padova, Padova, Italy.
Padova Neuroscience Center (PNC), University of Padova, Padova, Italy.
Venetian Institute of Molecular Medicine, VIMM, Padova, Italy.

Giorgia Cona (G)

Padova Neuroscience Center (PNC), University of Padova, Padova, Italy.
Department of General Psychology, University of Padova, Padova, Italy.

Miriam Celli (M)

Padova Neuroscience Center (PNC), University of Padova, Padova, Italy.
Venetian Institute of Molecular Medicine, VIMM, Padova, Italy.

Marco Zorzi (M)

Department of General Psychology, University of Padova, Padova, Italy.
IRCCS San Camillo Hospital, Venice, Italy.

Maurizio Corbetta (M)

Department of Neuroscience, University of Padova, Padova, Italy. maurizio.corbetta@unipd.it.
Padova Neuroscience Center (PNC), University of Padova, Padova, Italy. maurizio.corbetta@unipd.it.
Venetian Institute of Molecular Medicine, VIMM, Padova, Italy. maurizio.corbetta@unipd.it.

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