Orientation and motion-specific visual cortex responses in infants born preterm. by Birtles, D, Braddick, O, Wattam-Bell, J, Wilkinson, A, Atkinson, J

Areas within and beyond the visual cortex differentially activated by coherent visual motion and dynamic noise by O'Brien, J, Braddick, O, Hartley, T, Atkinson, J, Wattam-Bell, J, Turner, R

Cortical binocularity in infants. by Braddick, O, Atkinson, J, Julesz, B, Kropfl, W, Bodis-Wollner, I, Raab, E

“…The primate visual cortex, including that of man, receives separate input from each eye and these interact in binocular cortical neurones. …”

Orientation-specific cortical responses develop in early infancy. by Braddick, O, Wattam-Bell, J, Atkinson, J

“…Neurones in the visual cortex of higher mammals differ from those elsewhere in the visual pathway in that the majority respond selectively to particular edge or bar orientations in the stimulus. …”

Possible blindsight in infants lacking one cerebral hemisphere. by Braddick, O, Atkinson, J, Hood, B, Harkness, W, Jackson, G, Vargha-Khadem, F

“…Here we report results on two infants in whom one cerebral hemisphere, including both striate and extra-striate visual cortex, needed surgical removal in their first year. …”

Development of brain mechanisms for visual global processing and object segmentation. by Braddick, O, Atkinson, J

“…Objects have specific cognitive attributes, elicit particular visuo-motor responses, and require visual processes beyond primary visual cortex to combine information over extended regions as a basis for the segmentation and integration of visual objects. …”

Neonatal cerebral infarction and visual function at school age. by Mercuri, E, Anker, S, Guzzetta, A, Barnett, A, Haataja, L, Rutherford, M, Cowan, F, Dubowitz, L, Braddick, O, Atkinson, J

“…The presence of visual abnormalities was not always associated with the involvement of optic radiations or occipital primary visual cortex. Abnormal visual fields were only found in children who also developed hemiplegia. …”

Regional hemodynamic responses to visual stimulation in awake infants. by Meek, J, Firbank, M, Elwell, C, Atkinson, J, Braddick, O, Wyatt, J

“…The results imply that there is increased cerebral blood flow due to stimulation that is specific to the visual cortex and that infants, unlike adults, show increased cerebral oxygen utilization during activation that outstrips this hemodynamic effect. …”

Reorganization of global form and motion processing during human visual development. by Wattam-Bell, J, Birtles, D, Nyström, P, von Hofsten, C, Rosander, K, Anker, S, Atkinson, J, Braddick, O

“…The functional selectivity of human primary visual cortex (V1) for orientation and motion direction is established by around 3 months of age [1-3], but there have been few studies of the development of extrastriate visual areas that integrate outputs from V1 [4-8]. …”

Orientation-reversal VEP: comparison of phase and peak latencies in adults and infants. by Lee, J, Birtles, D, Wattam-Bell, J, Atkinson, J, Braddick, O

“…However, the overall timing of the cortical response to orientation change remains slower than for pattern reversal in the fully developed visual cortex. Upon reaching maturity, the latencies of the initial positive peak in both pattern and orientation VEPs may arise from the same level of cortical processing in V1, but the overall time course reflected in the steady-state phase continues to show a much more prolonged response to orientation change than the transmission delay seen in the transient VEPs.…”

VERP and brain imaging for identifying levels of visual dorsal and ventral stream function in typical and preterm infants. by Braddick, O, Atkinson, J, Wattam-Bell, J

“…Different levels in the hierarchy of visual processing, from the initial response to flashes of light, through selective responses to contour orientation and motion in primary visual cortex (V1), to global processing in extrastriate of large-scale patterns of form and motion, can each be assessed using stimuli designed to isolate specific neural activity in visual event-related potentials (VERPs). …”