Search Results - "Galea, Joseph M."

The dissociable effects of punishment and reward on motor learning by Galea, Joseph M, Mallia, Elizabeth, Rothwell, John, Diedrichsen, Jörn

“…Human motor adaptation is often described as an automatic process insensitive to reward- or punishment-based feedback. Contrary to this hypothesis, Galea et al…”
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Contribution of explicit processes to reinforcement-based motor learning by Holland, Peter, Codol, Olivier, Galea, Joseph M

“…Despite increasing interest in the role of reward in motor learning, the underlying mechanisms remain ill defined. In particular, the contribution of explicit…”
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Speech Facilitation by Left Inferior Frontal Cortex Stimulation by Holland, Rachel, Leff, Alex P., Josephs, Oliver, Galea, Joseph M., Desikan, Mahalekshmi, Price, Cathy J., Rothwell, John C., Crinion, Jennifer

“…Electrophysiological studies in humans and animals suggest that noninvasive neurostimulation methods such as transcranial direct current stimulation (tDCS) can…”
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Brain Polarization Enhances the Formation and Retention of Motor Memories by Galea, Joseph M, Celnik, Pablo

“…Department of Physical Medicine and Rehabilitation, Johns Hopkins Medical Institution, Baltimore, Maryland Submitted 2 March 2009; accepted in final form 13…”
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Human Locomotor Adaptive Learning Is Proportional to Depression of Cerebellar Excitability by Jayaram, Gowri, Galea, Joseph M., Bastian, Amy J., Celnik, Pablo

“…Human locomotor adaptive learning is thought to involve the cerebellum, but the neurophysiological mechanisms underlying this process are not known. While…”
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Predicting explorative motor learning using decision-making and motor noise by Chen, Xiuli, Mohr, Kieran, Galea, Joseph M

“…A fundamental problem faced by humans is learning to select motor actions based on noisy sensory information and incomplete knowledge of the world. Recently, a…”
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Dopamine-Dependent Loss Aversion during Effort-Based Decision-Making by Chen, Xiuli, Voets, Sarah, Jenkinson, Ned, Galea, Joseph M

“…From psychology to economics, there has been substantial interest in how costs (e.g., delay, risk) are represented asymmetrically during decision-making when…”
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The relationship between reinforcement and explicit control during visuomotor adaptation by Codol, Olivier, Holland, Peter J., Galea, Joseph M.

“…The motor system’s ability to adapt to environmental changes is essential for maintaining accurate movements. Such adaptation recruits several distinct…”
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Dopamine, affordance and active inference by Friston, Karl J, Shiner, Tamara, FitzGerald, Thomas, Galea, Joseph M, Adams, Rick, Brown, Harriet, Dolan, Raymond J, Moran, Rosalyn, Stephan, Klaas Enno, Bestmann, Sven

“…The role of dopamine in behaviour and decision-making is often cast in terms of reinforcement learning and optimal decision theory. Here, we present an…”
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Individual differences in explicit and implicit visuomotor learning and working memory capacity by Christou, Antonios I., Miall, R. Chris, McNab, Fiona, Galea, Joseph M.

“…The theoretical basis for the association between high working memory capacity (WMC) and enhanced visuomotor adaptation is unknown. Visuomotor adaptation…”
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Laterality Differences in Cerebellar-Motor Cortex Connectivity by Schlerf, John E, Galea, Joseph M, Spampinato, Danny, Celnik, Pablo A

“…Lateralization of function is an important organizational feature of the motor system. Each effector is predominantly controlled by the contralateral cerebral…”
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Cerebellar modulation of human associative plasticity by Hamada, Masashi, Strigaro, Gionata, Murase, Nagako, Sadnicka, Anna, Galea, Joseph M., Edwards, Mark J., Rothwell, John C.

“…Key point  •  Increases in the strength of synaptic connections in the motor cortex (long term potentiation) can be induced in humans by repetitively pairing…”
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Disruption of the dorsolateral prefrontal cortex facilitates the consolidation of procedural skills by Galea, Joseph M, Albert, Neil B, Ditye, Thomas, Miall, R Chris

“…In explicit sequence learning tasks, an improvement in performance (skill) typically occurs after sleep-leading to the recent literature on sleep-dependent…”
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Sensorimotor feedback loops are selectively sensitive to reward by Codol, Olivier, Kashefi, Mehrdad, Forgaard, Christopher J, Galea, Joseph M, Pruszynski, J Andrew, Gribble, Paul L

“…Although it is well established that motivational factors such as earning more money for performing well improve motor performance, how the motor system…”
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Muscle and timing-specific functional connectivity between the dorsolateral prefrontal cortex and the primary motor cortex by Hasan, Alkomiet, Galea, Joseph M, Casula, Elias P, Falkai, Peter, Bestmann, Sven, Rothwell, John C

“…The pFC has a crucial role in cognitive control, executive function, and sensory processing. Functional imaging, neurophysiological, and animal studies provide…”
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Short duration event related cerebellar TDCS enhances visuomotor adaptation by Weightman, Matthew, Lalji, Neeraj, Lin, Chin-Hsuan Sophie, Galea, Joseph M., Jenkinson, Ned, Miall, R. Chris

“…Transcranial direct current stimulation (TDCS) is typically applied before or during a task, for periods ranging from 5 to 30 min. We hypothesise that briefer…”
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Age-dependent Pavlovian biases influence motor decision-making by Chen, Xiuli, Rutledge, Robb B, Brown, Harriet R, Dolan, Raymond J, Bestmann, Sven, Galea, Joseph M

“…Motor decision-making is an essential component of everyday life which requires weighing potential rewards and punishments against the probability of…”
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Punishment-induced behavioral and neurophysiological variability reveals dopamine-dependent selection of kinematic movement parameters by Galea, Joseph M, Ruge, Diane, Buijink, Arthur, Bestmann, Sven, Rothwell, John C

“…Action selection describes the high-level process that selects between competing movements. In animals, behavioral variability is critical for the motor…”
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Action reprogramming in Parkinson's disease: response to prediction error is modulated by levels of dopamine by Galea, Joseph M, Bestmann, Sven, Beigi, Mazda, Jahanshahi, Marjan, Rothwell, John C

“…Humans are able to use knowledge of previous events to estimate the probability of future actions. Consequently, an unexpected event will elicit a prediction…”
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Direct-current-dependent shift of theta-burst-induced plasticity in the human motor cortex by Hasan, Alkomiet, Hamada, Masashi, Nitsche, Michael A., Ruge, Diane, Galea, Joseph M., Wobrock, Thomas, Rothwell, John C.

“…Animal studies using polarising currents have shown that induction of synaptic long-term potentiation (LTP) and long-term depression (LTD) by bursts of…”
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