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Control of wrist movement in deafferented man: evidence for a mixed strategy of position and amplitude control

Education, Bournemouth University , Bournemouth , UK 1 Institute of Cognitive Neuroscience, University College London , Queen Square, London WC1N 3AR , UK 2 R. Chris Miall There is a continuing debate about

Exploring the quiet eye in archery using field- and laboratory-based tasks

The ‘quiet eye’ (QE)—a period of extended gaze fixation on a target—has been reported in many tasks that require accurate aiming. Longer quiet eye durations (QEDs) are reported in experts compared to non-experts and on successful versus less successful trials. The QE has been extensively studied in the field; however, the cognitive mechanisms underlying the QE are not yet fully ...

Task-Specific Facilitation of Cognition by Anodal Transcranial Direct Current Stimulation of the Prefrontal Cortex

We previously speculated that depression of cerebellar excitability using cathodal transcranial direct current stimulation (tDCS) might release extra cognitive resources via the disinhibition of activity in prefrontal cortex. The objective of the present study was to investigate whether anodal tDCS over the prefrontal cortex could similarly improve performance when cognitive ...

Consensus Paper: Towards a Systems-Level View of Cerebellar Function: the Interplay Between Cerebellum, Basal Ganglia, and Cortex

Despite increasing evidence suggesting the cerebellum works in concert with the cortex and basal ganglia, the nature of the reciprocal interactions between these three brain regions remains unclear. This consensus paper gathers diverse recent views on a variety of important roles played by the cerebellum within the cerebello-basal ganglia-thalamo-cortical system across a range of ...

Disruption of Saccadic Adaptation with Repetitive Transcranial Magnetic Stimulation of the Posterior Cerebellum in Humans

Saccadic eye movements are driven by motor commands that are continuously modified so that errors created by eye muscle fatigue, injury, or—in humans—wearing spectacles can be corrected. It is possible to rapidly adapt saccades in the laboratory by introducing a discrepancy between the intended and actual saccadic target. Neurophysiological and lesion studies in the non-human ...

Misconceptions about Mirror-Induced Motor Cortex Activation

Observation of self-produced hand movements through a mirror, creating an illusion of the opposite hand moving, was recently reported to induce ipsilateral motor cortex activation, that is, motor cortex activation for the hand in rest. The reported work goes far beyond earlier work on motor cortex activation induced by action observation, by implying a complete reversal of ...

State Estimation in the Cerebellum

R. Chris Miall Dominic King An exciting hypothesis about the cerebellum is that its role is one of state estimationa process that combines efferent copies of motor commands with afferent sensory

Spatially valid proprioceptive cues improve the detection of a visual stimulus

Vision and proprioception are the main sensory modalities that convey hand location and direction of movement. Fusion of these sensory signals into a single robust percept is now well documented. However, it is not known whether these modalities also interact in the spatial allocation of attention, which has been demonstrated for other modality pairings. The aim of this study was ...

Contralateral manual compensation for velocity-dependent force perturbations

Carl P. T. Jackson 0 R. Chris Miall 0 0 C. P. T. Jackson (&) R. C. Miall Behavioural Brain Sciences, School of Psychology, University of Birmingham , Edgbaston, Birmingham B15 2TT, UK It is not

The quick and the dead: when reaction beats intention

Andrew E. Welchman () James Stanley Malte R. Schomers R. Chris Miall Heinrich H. Blthoff 0 Pembroke College, University of Cambridge , Cambridge CB2 1QA , UK 1 School of Medicine, University of Otago

Disruption of State Estimation in the Human Lateral Cerebellum

The cerebellum has been proposed to be a crucial component in the state estimation process that combines information from motor efferent and sensory afferent signals to produce a representation of the current state of the motor system. Such a state estimate of the moving human arm would be expected to be used when the arm is rapidly and skillfully reaching to a target. We now ...