G R Barnes
Affiliation: University of Manchester
- Cognitive processes involved in smooth pursuit eye movements: behavioral evidence, neural substrate and clinical correlationKikuro Fukushima
Department of Neurology, Sapporo Yamanoue Hospital Sapporo, Japan Department of Physiology, Hokkaido University School of Medicine Sapporo, Japan
Front Syst Neurosci 7:4. 2013..We show how neuronal activity may be explained by models of retinal and extra-retinal interaction in target selection and predictive control and thus aid understanding of underlying pathophysiology...
- Extraction of visual motion information for the control of eye and head movement during head-free pursuitRochelle Ackerley
Faculty of Life Sciences, University of Manchester, Moffat Building, Manchester, UK
Exp Brain Res 210:569-82. 2011....
- The influence of cues and stimulus history on the non-linear frequency characteristics of the pursuit response to randomized target motionGraham R Barnes
Faculty of Life Sciences, University of Manchester, Manchester M60 1QD, UK
Exp Brain Res 212:225-40. 2011....
- Cognitive processes involved in smooth pursuit eye movementsG R Barnes
Faculty of Life Sciences, University of Manchester, Moffat Building, Sackville St, Manchester M60 1QD, United Kingdom
Brain Cogn 68:309-26. 2008....
- Internally generated smooth eye movement: its dynamic characteristics and role in randomised and predictable pursuitG R Barnes
Faculty of Life Sciences, University of Manchester, Manchester, UK
Prog Brain Res 171:441-9. 2008..The key to release internally generated responses in both random and predictable conditions is expectation of future target motion. The key to their functionality is rapid acquisition and storage of velocity and timing information...
- Evidence for a link between the extra-retinal component of random-onset pursuit and the anticipatory pursuit of predictable object motionG R Barnes
Faculty of Life Sciences, University of Manchester, P O Box 88, Manchester M60 1QD, U K
J Neurophysiol 100:1135-46. 2008..Results suggest a common mechanism is responsible for anticipatory pursuit and the extra-retinal component of random-onset pursuit, a finding that is consistent with a previously developed model of pursuit...
- The influence of briefly presented randomized target motion on the extraretinal component of ocular pursuitG R Barnes
Faculty of Life Sciences, University of Manchester, PO Box 88, Manchester M60 1QD, UK
J Neurophysiol 99:831-42. 2008....
- Attention and selection for predictive smooth pursuit eye movementsE Poliakoff
School of Psychological Sciences, University of Manchester, Oxford Rd, Manchester, M13 9PL, UK
Brain Res Cogn Brain Res 25:688-700. 2005..However, other influences, such as past history, also affected predictive smooth eye movements...
- Scaling of smooth anticipatory eye velocity in response to sequences of discrete target movements in humansC J S Collins
Faculty of Life Sciences, University of Manchester, Moffat Building, Sackville Street, PO Box 88, Manchester, M60 1QD, UK
Exp Brain Res 167:404-13. 2005..Results suggest working memory can be used to acquire multiple levels of velocity information for prediction, but its use in rapid prediction is compromised when direction as well as speed must be retained...
- The occluded onset pursuit paradigm: prolonging anticipatory smooth pursuit in the absence of visual feedbackC J S Collins
Faculty of Life Sciences, The University of Manchester, Manchester, UK
Exp Brain Res 175:11-20. 2006..This prolongation of ASP throughout the occlusion period reveals the underlying internal drive that produces it, a drive that under normal circumstances quickly becomes masked by visual feedback...
- Quantitative differences in smooth pursuit and saccadic eye movementsM R Burke
Faculty of Life Sciences, Moffat Building, University of Manchester, PO Box 88, Sackville Street, Manchester, UK
Exp Brain Res 175:596-608. 2006..The results presented here support the notion that SP and SAC share common brain substrates/mechanisms in the generation of responses to PRD and RND visual targets but differ in the movement preparation time...
- Sequence learning in human ocular smooth pursuitG R Barnes
Department of Optometry and Neuroscience, UMIST, PO Box 88, Manchester M60 1QD, UK
Exp Brain Res 144:322-35. 2002....
- Target selection for predictive smooth pursuit eye movementsE Poliakoff
Department of Optometry and Neuroscience, UMIST, M60 1QD, PO Box 88, Manchester, UK
Exp Brain Res 155:129-33. 2004..Thus, subjects were able to make predictive eye movements that were of appropriate velocity for the cued target, despite fixating and being uncertain which target was relevant, during previous exposure...
- The role of expectancy and volition in smooth pursuit eye movementsG R Barnes
Department of Optometry and Neuroscience, UMIST, P O Box 88, Manchester M60 1QD, UK
Prog Brain Res 140:239-54. 2002..We further demonstrate that, when concatenated, these graded motor primitives can be rapidly combined to form predictive smooth movement trajectories in response to complex multi-ramp sequences...
- Anticipatory VOR suppression induced by visual and nonvisual stimuli in humansG R Barnes
Dept of Optometry and Neuroscience, University of Manchester Institute of Science and Technology, PO Box 88, Manchester M60 1QD, UK
J Neurophysiol 92:1501-11. 2004..Anticipatory responses may represent the output of a central mechanism for smooth-eye-movement generation that operates during predictive SP as well as VOR modulations that are linked with SP even in the absence of real visual targets...
- Brain and behavior: a task-dependent eye movement studyM R Burke
Faculty of Life Sciences, University of Manchester, Manchester M60 1QD, UK
Cereb Cortex 18:126-35. 2008..In addition, we found learning-related activation during the PRD condition in visual area V5, the DLPFC, and the cerebellum...
- Anticipatory control of hand and eye movements in humans during oculo-manual trackingG R Barnes
Department of Optometry and Neuroscience, UMIST, PO Box 88, Manchester, M60 1QD, UK
J Physiol 539:317-30. 2002..Results provide evidence of similar anticipatory mechanisms in hand and eye, using storage of velocity and timing to achieve rapid prediction of target motion...
- Predicting the duration of ocular pursuit in humansG R Barnes
Department of Optometry and Neuroscience, UMIST, PO Box 88 Manchester M60 1QD, UK
Exp Brain Res 160:10-21. 2005..The results suggest that estimates of stimulus duration are made continuously in all conditions, based on expectancy of target termination...
- Object motion perception is shaped by the motor control mechanism of ocular pursuitG Schweigart
Neurological University Clinic, Neurocenter, Breisacher Strasse 64, 79106 Freiburg, Germany
Exp Brain Res 148:350-65. 2003..This dissociation cannot be taken to indicate that the two functions are internally represented in separate brain control systems, but rather reflects the intimate coupling between both functions...
- Factors affecting the longevity of a short-term velocity store for predictive oculomotor trackingS R Chakraborti
Guy s, King s and St Thomas School of Medicine, Guy s Campus, London Bridge, London SE1 1UL, UK
Exp Brain Res 144:152-8. 2002..Furthermore, we provide evidence to suggest that this process may be controlled by a two-part sample and hold mechanism...
- The cortical deficit in humans with strabismic amblyopiaG R Barnes
McGill Vision Research, Department of Ophthalmology, McGill University, Montreal, Canada
J Physiol 533:281-97. 2001..We did not find a close relationship between the fMRI response reduction in amblyopia and either of the known psychophysical deficits even though the fMRI response reduction in amblyopia did covary with stimulus spatial frequency...
- A quantitative assessment of the sensitivity of whole-head MEG to activity in the adult human cortexA Hillebrand
The Wellcome Trust Laboratory for MEG Studies, Neurosciences Research Institute, Aston University, Birmingham, United Kingdom
Neuroimage 16:638-50. 2002....
- Population-level inferences for distributed MEG source localization under multiple constraints: application to face-evoked fieldsR N Henson
MRC Cognition and Brain Sciences Unit, 15 Chaucer Road, Cambridge, CB2 2EF, UK
Neuroimage 38:422-38. 2007....
- Dissociating the spatio-temporal characteristics of cortical neuronal activity associated with human volitional swallowing in the healthy adult brainP L Furlong
The Wellcome Trust Laboratory for MEG Studies, Neurosciences Research Institute, Aston University, Birmingham, UK
Neuroimage 22:1447-55. 2004..Thus, the ability to non-invasively image this network, with intra-individual and high temporal resolution, provides new insights into the brain processing of human swallowing...