Research Topics
| Stuart N BakerSummaryAffiliation: University of Newcastle Country: UK Publications
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Detail Information
Publications
Afferent encoding of central oscillations in the monkey armStuart N Baker
University of Newcastle upon Tyne, Sir James Spence Institute, Royal Victoria Infirmary, Queen Victoria Road, Newcastle upon Tyne, NE1 4LP, United Kingdom
J Neurophysiol 95:3904-10. 2006..Oscillations are known to appear in muscle activity; their presence in afferent firing as well implies that central oscillations pass around a peripheral feedback loop and may be involved in sensorimotor integration...- The primate reticulospinal tract, hand function and functional recoveryStuart N Baker
Institute of Neuroscience, Medical School, Newcastle University, Newcastle upon Tyne NE2 4HH, UK
J Physiol 589:5603-12. 2011.... - Oscillatory interactions between sensorimotor cortex and the peripheryStuart N Baker
Institute of Neuroscience, Newcastle University, Henry Wellcome Building, Medical School, Framlington Place, Newcastle upon Tyne, NE2 4HH, UK
Curr Opin Neurobiol 17:649-55. 2007..Somatosensory cortex has strong beta-band oscillations, which are synchronised with those in motor cortex, allowing oscillatory sensory reafference to be interpreted in the context of the oscillatory motor command which produced it... - Spinal interneuron circuits reduce approximately 10-Hz movement discontinuities by phase cancellationElizabeth R Williams
Institute of Neuroscience, Newcastle University, Newcastle upon Tyne NE2 4HH, United Kingdom
Proc Natl Acad Sci U S A 107:11098-103. 2010..This could appreciably limit drive to muscle at this frequency, thereby reducing tremor and improving movement precision... - Lack of evidence for direct corticospinal contributions to control of the ipsilateral forelimb in monkeyDemetris S Soteropoulos
Institute of Neuroscience, Newcastle University, Medical School, Newcastle upon Tyne NE2 4HH, UK
J Neurosci 31:11208-19. 2011.... - Cells in somatosensory areas show synchrony with beta oscillations in monkey motor cortexClaire L Witham
Institute of Neuroscience, Newcastle University, Sir James Spence Building, Royal Victoria Infirmary, Queen Victoria Road, Newcastle upon Tyne NE1 4LP, UK
Eur J Neurosci 26:2677-86. 2007..Such oscillatory coupling across the central sulcus may play an important role in sensorimotor integration of both proprioceptive and cutaneous signals... - Coherence between motor cortical activity and peripheral discontinuities during slow finger movementsElizabeth R Williams
Institute of Neuroscience, Newcastle University, Newcastle upon Tyne, NE2 4HH, United Kingdom
J Neurophysiol 102:1296-309. 2009..We conclude that movement discontinuities during slow finger movements arise from a reciprocally coupled network, which includes M1 and the periphery... - Renshaw cell recurrent inhibition improves physiological tremor by reducing corticomuscular coupling at 10 HzElizabeth R Williams
Institute of Neuroscience, Newcastle University, Newcastle upon Tyne NE2 4HH, United Kingdom
J Neurosci 29:6616-24. 2009..However, our quantitative results suggest it is unlikely to be the only system for tremor reduction, and probably acts in concert with other neural circuits which remain to be elucidated... - Circuits generating corticomuscular coherence investigated using a biophysically based computational model. I. Descending systemsElizabeth R Williams
Institute of Neuroscience, Newcastle University, Henry Wellcome Building, Newcastle upon Tyne, NE2 4HH, UK
J Neurophysiol 101:31-41. 2009..Simple propagation of oscillations from cortex to muscle thus cannot completely explain the observed corticomuscular coherence... - Contributions of descending and ascending pathways to corticomuscular coherence in humansClaire L Witham
Institute of Neuroscience, Newcastle University, Henry Wellcome Building for Neuroecology, Framlington Place, Newcastle upon Tyne NE2 4HH, UK
J Physiol 589:3789-800. 2011..These results confirm the complex nature of corticomuscular coherence with contributions from both descending and ascending pathways... - Modulation and transmission of peripheral inputs in monkey cuneate and external cuneate nucleiClaire L Witham
Institute of Neuroscience, Medical School, Newcastle Univ, Framlington Place, Newcastle upon Tyne, NE2 4HH, UK
J Neurophysiol 106:2764-75. 2011..We conclude that the primate cuneate nucleus is capable of transmitting temporal information about stimuli with high fidelity; stimuli interact both temporally and spatially to modulate the onward transmission of information... - Bilateral representation in the deep cerebellar nucleiDemetris S Soteropoulos
Institute of Neuroscience, Newcastle University, Sir James Spence Building, Royal Victoria Infirmary, Queen Victoria Road, Newcastle upon Tyne NE1 4LP, UK
J Physiol 586:1117-36. 2008..This places the cerebellum in an ideal position to coordinate bilateral movements... - Learning a novel myoelectric-controlled interface taskSaritha M Radhakrishnan
Institute of Neuroscience, Henry Wellcome Building, Newcastle University, Newcastle upon Tyne, NE2 4HH, UK
J Neurophysiol 100:2397-408. 2008.... - Network oscillations and intrinsic spiking rhythmicity do not covary in monkey sensorimotor areasClaire L Witham
Newcastle University, Sir James Spence Institute, Royal Victoria Infirmary, Newcastle upon Tyne NE1 4LP, UK
J Physiol 580:801-14. 2007..These results suggest that intrinsic rhythmicity is not required for the generation and maintenance of oscillatory activity... - Quantifying neural coding of event timingDemetris S Soteropoulos
Institute of Neuroscience, Medical School, Newcastle University, Newcastle upon Tyne, NE2 4HH, UK
J Neurophysiol 101:402-17. 2009..The technique can provide a useful means not only of determining which of several behavioral events a cell encodes best, but also of permitting objective comparison of different cell populations... - Corticospinal activation confounds cerebellar effects of posterior fossa stimuliKaren M Fisher
Institute of Neuroscience, Henry Wellcome Building, Medical School, Newcastle University, Newcastle upon Tyne NE2 4HH, UK
Clin Neurophysiol 120:2109-13. 2009..To investigate the efficacy of magnetic stimulation over the posterior fossa (PF) as a non-invasive assessment of cerebellar function in man... - Different contributions of the corpus callosum and cerebellum to motor coordination in monkeyDemetris S Soteropoulos
Institute of Neuroscience, Newcastle University, Sir James Spence Building, Royal Victoria Infirmary, Newcastle upon Tyne, United Kingdom
J Neurophysiol 98:2962-73. 2007..DCN neurons with higher basal rates are better suited to control continuously variable parameters of movement... - Cortico-cerebellar coherence during a precision grip task in the monkeyDemetris S Soteropoulos
University of Newcastle, Sir James Spence Institute, Royal Victoria Infirmary, Newcastle upon Tyne, United Kingdom
J Neurophysiol 95:1194-206. 2006..The extensive oscillatory synchronization observed between cerebellum and motor cortex may have functional importance in sensorimotor processing... - Corticomuscular coherence during bilateral isometric arm voluntary activity in healthy humansMonica A Perez
Newcastle Univ, Henry Wellcome Bldg, Medical School, Framlington Place, Newcastle upon Tyne, NE2 4HH, UK
J Neurophysiol 107:2154-62. 2012.... - Central nervous system dysfunction in primary biliary cirrhosis and its relationship to symptomsClaire McDonald
Institute of Cellular Medicine, Newcastle University, UK
J Hepatol 53:1095-100. 2010..In this study we objectively quantify central and peripheral fatigue in PBC and investigate the integrity of cortical inhibitory and excitatory circuits. Finally, we determine the relationship of these indices to the symptoms of PBC... - The effect of diazepam on motor cortical oscillations and corticomuscular coherence studied in manMark R Baker
Department of Anatomy, University of Cambridge, Cambridge CB2 3DY, UK
J Physiol 546:931-42. 2003..The relative constancy of coherence even when the amplitude of cortical oscillations is perturbed suggests that corticomuscular coherence itself may have a functional role in motor control... - Synchronization in monkey motor cortex during a precision grip task. II. effect of oscillatory activity on corticospinal outputStuart N Baker
Sobell Department of Neurophysiology, Institute of Neurology, Queen Square, London WC1N 3BG, United Kingdom
J Neurophysiol 89:1941-53. 2003..The oscillations will therefore be effectively transmitted to spinal motoneurons, and this has important consequences for the possible role of oscillations in motor control of the hand... - Synchrony between neurons with similar muscle fields in monkey motor cortexAndrew Jackson
Sobell Department of Motor Neuroscience and Movement Disorders, Institute of Neurology, UCL, London WC1N 3BG, United Kingdom
Neuron 38:115-25. 2003..We conclude that synchrony in motor cortex engages networks of neurons directly controlling the same muscle set, while inhibitory connections exist between neuronal populations with opposing output effects... - Post-spike distance-to-threshold trajectories of neurones in monkey motor cortexDaniel Z Wetmore
Neuroscience Graduate Program, Stanford University School of Medicine, Stanford, CA 94305, USA
J Physiol 555:831-50. 2004..This could act to enhance synchronized oscillatory discharge among populations of cells at functionally relevant frequencies... - Muscle responses to transcranial stimulation in man depend on background oscillatory activityW Kyle Mitchell
Department of Anatomy, Cambridge University, Cambridge CB2 3DY, UK
J Physiol 583:567-79. 2007..However, the majority of the variation is determined by other factors, which are not accessible by noninvasive recordings... - The effect of carbamazepine on human corticomuscular coherenceC Nicholas Riddle
Department of Anatomy, University of Cambridge, Cambridge CB2 3DY, UK
Neuroimage 22:333-40. 2004..We show here that CBZ raises coherence without altering EEG power. This pharmacological dissociation may indicate an important role for corticomuscular coherence in motor control... - Manipulation of peripheral neural feedback loops alters human corticomuscular coherenceC Nicholas Riddle
Department of Anatomy, University of Cambridge, Cambridge CB2 3DY, UK
J Physiol 566:625-39. 2005..The data rather suggest that afferent feedback pathways may also play a role in the genesis of corticomuscular coherence... - EEG oscillations at 600 Hz are macroscopic markers for cortical spike burstsStuart N Baker
Department of Anatomy, University of Cambridge, Cambridge CB2 3DY, UK
J Physiol 550:529-34. 2003..Spike bursts were also evoked by tactile stimuli, proving that this is a natural response mode. EEG wavelets at 600 Hz may therefore permit non-invasive assessment of population spike timing in human cortex... - Measurement of time-dependent changes in the irregularity of neural spikingRonnie M Davies
The Clinical School, Addenbrooke's Hospital, Cambridge, United Kingdom
J Neurophysiol 96:906-18. 2006..Such irregularity modulation could have important consequences for the response of downstream neurons and may provide insight into the nature of the cortical code... - Digit displacement, not object compliance, underlies task dependent modulations in human corticomuscular coherenceC Nicholas Riddle
Department of Anatomy, University of Cambridge, Cambridge, CB2 3DY, UK
Neuroimage 33:618-27. 2006..We speculate that corticomuscular coherence may reflect a sensorimotor recalibration, providing updated information about system state following movement...