Zobrazeno 1 - 10
of 68
pro vyhledávání: '"John Wattam-Bell"'
Publikováno v:
i-Perception, Vol 3 (2012)
In adults, visual form and motion activate independent networks of extrastriate areas which are roughly aligned with the ventral and dorsal streams, respectively. Using high-density steady-state ERPs, we have previously shown that the scalp topograph
Externí odkaz:
https://doaj.org/article/1845df347f054bd1b7192ad32ab170e6
Publikováno v:
i-Perception, Vol 3 (2012)
A technique commonly used to assess infants' visual acuity is forced-choice preferential looking, which relies on the propensity of infants to look at patterned stimuli over uniform grey. Existing tests use trained examiners to judge where an infant
Externí odkaz:
https://doaj.org/article/b542c9f21fad442697bfca8daa5ad435
Visual development is a key area for understanding and assessing early brain development. Different levels in the hierarchy of visual processing, from the initial response to flashes of light, through selective responses to contour orientation and mo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::36a3d1102c2c8c3967815c785befcc66
https://ora.ox.ac.uk/objects/uuid:f9a9f4e3-b3fb-4961-b0b2-b4c6b60432e1
https://ora.ox.ac.uk/objects/uuid:f9a9f4e3-b3fb-4961-b0b2-b4c6b60432e1
Mid-level visual processes which integrate local orientation information for the detection of global structure can be investigated using global form stimuli of varying complexity. Several lines of evidence suggest that the identification of concentri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5d42bd5cd47f8ff3dfa3390b3faaf9ff
https://ora.ox.ac.uk/objects/uuid:e5b0aed4-5719-4b5d-8057-34a4c47fa4a6
https://ora.ox.ac.uk/objects/uuid:e5b0aed4-5719-4b5d-8057-34a4c47fa4a6
Autor:
Justin O'Brien, Oliver Braddick, Janine Spencer, Kevin J. Riggs, John Wattam-Bell, Janette Atkinson
We report that motion coherence thresholds in children with autism are significantly higher than in matched controls. No corresponding difference in form coherence thresholds was found. We interpret this as a specific deficit in dorsal stream functio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f5ccfa8f1cf4ef384b1568a2551e1f62
https://ora.ox.ac.uk/objects/uuid:8bf28550-4125-4b3f-99a8-3e90d5dff1c9
https://ora.ox.ac.uk/objects/uuid:8bf28550-4125-4b3f-99a8-3e90d5dff1c9
The peak latency of pattern-reversal (PR)-VEP has been found to develop rapidly, reaching the adult level around 15 weeks of age. However, the development of orientation-reversal (OR)-VEP, reflecting the specific spatial organization of cortical rece
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::52885e5e05901238249fbbd6a800d3b5
https://ora.ox.ac.uk/objects/uuid:0e006e6d-7a37-4478-a42e-7f8585aad15e
https://ora.ox.ac.uk/objects/uuid:0e006e6d-7a37-4478-a42e-7f8585aad15e
Autor:
John Wattam-Bell, D Birtles, Susanna Mills, Julien Warshafsky, Oliver Braddick, Janette Atkinson
Coherence thresholds for concentric patterns of contour segments or dot trajectories have revealed differential development and vulnerability of extrastriate form and motion pathways respectively (Braddick et al, Neuropsychologia, 2003). Here we expl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::16ad0501c1583de955773c73737d7d75
https://doi.org/10.1167/6.6.426
https://doi.org/10.1167/6.6.426
Form and motion coherence was tested in children with dyspraxia and matched controls to assess their global spatial and global motion processing abilities. Thresholds for detecting form coherence patterns were significantly higher in the dyspraxic gr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1cdceb0599c6d51d797ce4043a3336be
https://doi.org/10.1097/00001756-200208070-00010
https://doi.org/10.1097/00001756-200208070-00010
Autor:
John Wattam-Bell, Oliver Braddick, Gillian Porter, Antony James Bayer, Andrea Tales, Judy Haworth, Janette Atkinson
Publikováno v:
Neurobiology of aging. 56
The visual processing of complex motion is impaired in Alzheimer's disease (AD). However, it is unclear whether these impairments are biased toward the motion stream or part of a general disruption of global visual processing, given some reports of i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::916f842fbb2f8d17b27b4d6dd0d861ce
https://pubmed.ncbi.nlm.nih.gov/28482210
https://pubmed.ncbi.nlm.nih.gov/28482210
Autor:
Eliza, Burton, John, Wattam-Bell, Gary, S Rubin, Jonathan, Aboshiha, Michel, Michaelides, Janette, Atkinson, Oliver, Braddick, Marko, Nardini
Publikováno v:
Investigative ophthalmologyvisual science. 57(4)
While basic visual functions have been described in subjects with congenital achromatopsia (ACHM), little is known about their mid- or high-level cortical visual processing. We compared midlevel cortical visual processing in ACHM subjects (n = 11) an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::93791f71be09e2bc3d76d25914a9e83c
https://pubmed.ncbi.nlm.nih.gov/27124317
https://pubmed.ncbi.nlm.nih.gov/27124317