bioRxiv
April 21, 2020
Matthew J Davidson, Will Mithen, Hinze Hogendoorn et al.
preprint
Although visual awareness of an object typically increases neural responses, we identify a neural response that increases prior to perceptual disappearances , and that scales with the amount of invisibility reported during perceptual filling-in. These findings challenge long-held assumptions regarding the neural correlates of consciousness and entrained visually evoked potentials, by showing...
Neuroscience of Consciousness
2020
Matthew J Davidson, Irene L Graafsma, Naotsugu Tsuchiya et al.
Perceptual filling-in (PFI) occurs when a physically present visual target disappears from conscious perception, with its location filled-in by the surrounding visual background. These perceptual changes are complete, near instantaneous, and can occur for multiple separate locations simultaneously. Here, we show that contrasting neural activity during the presence or absence of multi-target PFI...
bioRxiv Preprint Server
August 7, 2019
Matthew J Davidson, Irene L Graafsma, Naotsugu Tsuchiya et al.
preprint
Perceptual filling-in (PFI) occurs when a physically-present visual target disappears from conscious perception, with its location filled in by the surrounding visual background. Compared to other visual illusions, these perceptual changes are crisp and simple, and can occur for multiple spatially-separated targets simultaneously. Contrasting neural activity during the presence or absence of...
Pacific philosophical quarterly
August 14, 2018
Matthew J Davidson
1 citation
Abstract In this article, I explore various views on which mind–body dualism is true, but the soul is located in the body. I argue that this sort of dualism (which I call ‘somatic dualism’) once was a not‐uncommon view in the philosophy of mind. I also argue that it has the resources to reply to some of the problems thought to affect Cartesian dualism.
Neuroimage
September 15, 2011
Navindra Persaud, Matthew J Davidson, Brian Maniscalco et al.
Many imaging studies report activity in the prefrontal and parietal cortices when subjects are aware as opposed to unaware of visual stimuli. One possibility is that this activity simply reflects higher signal strength or the superior task performance that is associated with awareness. To find out, we studied the hemianope GY who has unilateral destruction of almost all primary visual cortices....