- Poster presentation
- Open Access
Independence of space-based and feature-based attention in the determination of figure direction
© Wagatsuma et al; licensee BioMed Central Ltd. 2008
Published: 11 July 2008
Visual attention enhances our perception and even alters the perception of figures, as we often see in ambiguous figures. We investigated computationally the role of spatial attention in early vision for the perception of direction-of-figure (DOF). Spatial attention alters local contrast gain in early vision, thus apparent local contrast will be modulated. If the local contrast is the basis for the determination of border-ownership (BO) that tells which side of a contour owns the border [1, 2], BO will be modulated based on the local contrast that is altered by the attention. If the effect of attention is significant, the activity of BO-selective cells will be facilitated/suppressed so that the DOF will be flipped.
- Zhou H, Friedman HS, von der Heydt R: Coding of border ownership in monkey visual cortex. J Neurosci. 2000, 20: 6594-6611.PubMedGoogle Scholar
- Sakai K, Nishimura H: Surrounding suppression and facilitation n the determination of border ownership. J Cognitive Neurosci. 2006, 18: 562-579. 10.1162/jocn.2006.18.4.562.View ArticleGoogle Scholar
This article is published under license to BioMed Central Ltd.