The neural bases of spatial frequency processing during scene perception - Université Grenoble Alpes Accéder directement au contenu
Article Dans Une Revue Frontiers in Integrative Neuroscience Année : 2014

The neural bases of spatial frequency processing during scene perception

Résumé

Theories on visual perception agree that scenes are processed in terms of spatial frequencies. Low spatial frequencies (LSF) carry coarse information whereas high spatial frequencies (HSF) carry fine details of the scene. However, how and where spatial frequencies are processed within the brain remain unresolved questions. The present review addresses these issues and aims to identify the cerebral regions differentially involved in low and high spatial frequency processing, and to clarify their attributes during scene perception. Results from a number of behavioral and neuroimaging studies suggest that spatial frequency processing is lateralized in both hemispheres, with the right and left hemispheres predominantly involved in the categorization of LSF and HSF scenes, respectively. There is also evidence that spatial frequency processing is retinotopically mapped in the visual cortex. HSF scenes (as opposed to LSF) activate occipital areas in relation to foveal representations, while categorization of LSF scenes (as opposed to HSF) activates occipital areas in relation to more peripheral representations. Concomitantly, a number of studies have demonstrated that LSF information may reach high-order areas rapidly, allowing an initial coarse parsing of the visual scene, which could then be sent back through feedback into the occipito-temporal cortex to guide finer HSF-based analysis. Finally, the review addresses spatial frequency processing within scene-selective regions areas of the occipito-temporal cortex.
Fichier principal
Vignette du fichier
Kauffmann et al. (2014). The neural bases of spatial frequency processing during scene perception.pdf (2.61 Mo) Télécharger le fichier
Origine Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

hal-01886909 , version 1 (03-10-2018)

Identifiants

Citer

Louise Kauffmann, Stephen Ramanoël, Carole Peyrin. The neural bases of spatial frequency processing during scene perception. Frontiers in Integrative Neuroscience, 2014, 8, ⟨10.3389/fnint.2014.00037⟩. ⟨hal-01886909⟩
134 Consultations
388 Téléchargements

Altmetric

Partager

Gmail Mastodon Facebook X LinkedIn More