Research ArticleUnilateral Visual Cueing and Asymmetric Line Geometry Share a Common Attentional Origin in the Modulation of Pseudoneglect
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Cited by (47)
Altered perceptual pseudoneglect in ADHD: Evidence for a functional disconnection from early visual activation
2017, NeuropsychologiaCitation Excerpt :These different forms of pseudoneglect may be in part due to different underlying processes. Nevertheless, generally speaking the processes underlying pseudoneglect appear to involve functions of attention and awareness that are predominantly associated with the right hemisphere (McCourt et al., 2005), because right-brain damage causes spatial neglect, a severe deficit of visual attention and spatial awareness (Karnath et al., 2004; Mort et al., 2003; Verdon et al., 2010) that produces pathological biases to the right, complementary to the biases observed in pseudoneglect (e.g., McCourt and Jewell, 1999). What is more, pseudoneglect interacts with exogenous forms of attention in that cues on the right side reduce leftward biases, whereas cues on the left do not increase them (Bultitude and Aimola Davies, 2006; McCourt et al., 2005; Singh et al., 2011; for other attentional phenomena, e.g., Toba et al., 2011).
Spatial distortions in localization and midline estimation in hemianopia and normal vision
2015, Vision ResearchCitation Excerpt :Other work has investigated the development of a “pseudo-fovea” (i.e., eccentric fixation) in hemianopia, similar to those observed in patients with central field loss following macular degeneration (Cheung & Legge, 2005; Crossland et al., 2005), and the role that shifts in spatial attention play in the HLBE (Kuhn et al., 2012). While spatial cueing has been shown to modulate line bisection errors in neurologically healthy individuals, with the perceived midpoint of a line shifted toward the cue location (Harvey et al., 2000; McCourt, Garlinghouse, & Reuter-Lorenz, 2005; Nichelli & Rinaldi, 1989; Toba, Cavanagh, & Bartolomeo, 2011), a spatial cueing study in patients with hemianopia failed to find significant modulations in the direction or magnitude of the HLBE (Kuhn et al., 2012). The results of Kuhn et al. (2012) also provide evidence against a possible contribution of a preferred eccentric retinal locus to the HLBE.
A toggle switch of visual awareness?
2015, Cortex