Guy Avraham
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View article: Cortico-basal oscillations index naturalistic movements during deep brain stimulation
Cortico-basal oscillations index naturalistic movements during deep brain stimulation Open
The basal ganglia and sensorimotor cortex are essential nodes of a network that supports motor control. In Parkinson’s disease, disruptions in this network lead to rigidity and slowness during movement execution. Deep brain stimulation (DB…
View article: Interference Underlies Attenuation upon Relearning in Sensorimotor Adaptation
Interference Underlies Attenuation upon Relearning in Sensorimotor Adaptation Open
Savings refers to the gain in performance upon relearning. In sensorimotor adaptation, savings is tested by having participants adapt to perturbed feedback and, following a washout block during which the system resets to baseline, presenti…
View article: Fundamental processes in sensorimotor learning: Reasoning, refinement, and retrieval
Fundamental processes in sensorimotor learning: Reasoning, refinement, and retrieval Open
Motor learning is often viewed as a unitary process that operates outside of conscious awareness. This perspective has led to the development of sophisticated models designed to elucidate the mechanisms of implicit sensorimotor learning. I…
View article: Interference underlies attenuation upon relearning in sensorimotor adaptation
Interference underlies attenuation upon relearning in sensorimotor adaptation Open
Savings refers to the gain in performance upon relearning a task. In sensorimotor adaptation, savings is tested by having participants adapt to perturbed feedback and, following a washout block during which the system resets to baseline, p…
View article: Perturbation Variability Does Not Influence Implicit Sensorimotor Adaptation
Perturbation Variability Does Not Influence Implicit Sensorimotor Adaptation Open
Implicit adaptation has been regarded as a rigid process that automatically operates in response to movement errors to keep the sensorimotor system precisely calibrated. This hypothesis has been challenged by recent evidence suggesting fle…
View article: Advanced feedback enhances sensorimotor adaptation
Advanced feedback enhances sensorimotor adaptation Open
It is widely recognized that sensorimotor adaptation is facilitated when feedback is provided throughout the movement compared with when it is provided at the end of the movement. However, the source of this advantage is unclear: continuou…
View article: Fundamental processes in sensorimotor learning: Reasoning, Refinement, and Retrieval
Fundamental processes in sensorimotor learning: Reasoning, Refinement, and Retrieval Open
[Now published in eLife: https://elifesciences.org/articles/91839] Motor learning is often viewed as a unitary process that operates outside of conscious awareness. This perspective has led to the development of sophisticated models design…
View article: Artificial Tactile Stimulation Provides Haptic Cuing in Force Field Adaptation
Artificial Tactile Stimulation Provides Haptic Cuing in Force Field Adaptation Open
When interacting with objects with unfamiliar dynamics, the sensorimotor system uses haptic information to develop internal representations of the new dynamics. These representations are subsequently used to manipulate the objects by apply…
View article: Implicit reward-based motor learning
Implicit reward-based motor learning Open
Binary feedback, providing information solely about task success or failure, can be sufficient to drive motor learning. While binary feedback can induce explicit adjustments in movement strategy, it remains unclear if this type of feedback…
View article: Perturbation Variability Does Not Influence Implicit Sensorimotor Adaptation
Perturbation Variability Does Not Influence Implicit Sensorimotor Adaptation Open
Cerebellar-dependent implicit adaptation has been regarded as a rigid process that automatically operates in response to movement errors in order to keep the sensorimotor system calibrated. This hypothesis has been challenged by recent evi…
View article: Contextual effects in sensorimotor adaptation adhere to associative learning rules
Contextual effects in sensorimotor adaptation adhere to associative learning rules Open
Traditional associative learning tasks focus on the formation of associations between salient events and arbitrary stimuli that predict those events. This is exemplified in cerebellar-dependent delay eyeblink conditioning, where arbitrary …
View article: Advanced Feedback Enhances Sensorimotor Adaptation
Advanced Feedback Enhances Sensorimotor Adaptation Open
It is widely recognized that sensorimotor learning is enhanced when the feedback is provided throughout the movement compared to when it is provided at the end of the movement. However, the source of this advantage is unclear: Continuous f…
View article: Author response: Contextual effects in sensorimotor adaptation adhere to associative learning rules
Author response: Contextual effects in sensorimotor adaptation adhere to associative learning rules Open
Article Figures and data Abstract Editor's evaluation Introduction Results Discussion Materials and methods Data availability References Decision letter Author response Article and author information Metrics Abstract Traditional associativ…
View article: The Effect of Perturbation Variability on Sensorimotor Adaptation Does Not Require an Implicit Memory of Errors
The Effect of Perturbation Variability on Sensorimotor Adaptation Does Not Require an Implicit Memory of Errors Open
In a recent paper 1 entitled, “An implicit memory of errors limits human sensorimotor adaptation” Albert and colleagues presented a model in which the adaptive response of the sensorimotor system is flexibly modulated by recent experience,…
View article: Moving outside the lab: The viability of conducting sensorimotor learning studies online
Moving outside the lab: The viability of conducting sensorimotor learning studies online Open
Collecting data online via crowdsourcing platforms has proven to be a very efficient way to recruit a large and diverse sample. Studies of motor learning, however, have been largely confined to the lab due to the need for special equipment…
View article: Moving outside the lab: The viability of conducting sensorimotor learning studies online
Moving outside the lab: The viability of conducting sensorimotor learning studies online Open
Collecting data online via crowdsourcing platforms has proven to be a very efficient way to recruit a large and diverse sample. Studies of motor learning, however, have been largely confined to the lab due to the need for special equipment…
View article: Reexposure to a sensorimotor perturbation produces opposite effects on explicit and implicit learning processes
Reexposure to a sensorimotor perturbation produces opposite effects on explicit and implicit learning processes Open
The motor system demonstrates an exquisite ability to adapt to changes in the environment and to quickly reset when these changes prove transient. If similar environmental changes are encountered in the future, learning may be faster, a ph…
View article: Moving outside the lab: The viability of conducting sensorimotor learning studies online
Moving outside the lab: The viability of conducting sensorimotor learning studies online Open
Collecting data online via crowdsourcing platforms has proven to be a very efficient way to recruit a large and diverse sample. Studies of motor learning, however, have been largely confined to the lab due to the need for special equipment…
View article: The effect of visual uncertainty on implicit motor adaptation
The effect of visual uncertainty on implicit motor adaptation Open
Sensorimotor adaptation is influenced by both the size and variance of error information. In the present study, we varied visual uncertainty and error size in a factorial manner and evaluated their joint effect on adaptation, using a feedb…
View article: The Psychology of Reaching: Action Selection, Movement Implementation, and Sensorimotor Learning
The Psychology of Reaching: Action Selection, Movement Implementation, and Sensorimotor Learning Open
The study of motor planning and learning in humans has undergone a dramatic transformation in the 20 years since this journal's last review of this topic. The behavioral analysis of movement, the foundational approach for psychology, has b…
View article: Contextual effects in sensorimotor adaptation adhere to associative learning rules
Contextual effects in sensorimotor adaptation adhere to associative learning rules Open
Traditional associative learning tasks focus on the formation of associations between salient events and arbitrary stimuli that predict those events. This is exemplified in cerebellar-dependent delay eyeblink conditioning, where arbitrary …
View article: Re-exposure to a sensorimotor perturbation produces opposite effects on explicit and implicit learning processes
Re-exposure to a sensorimotor perturbation produces opposite effects on explicit and implicit learning processes Open
The motor system demonstrates an exquisite ability to adapt to changes in the environment, and to quickly reset when these changes prove transient. If similar environmental changes are encountered in the future, learning may be faster, a p…
View article: The Effect of Visual Uncertainty on Implicit Motor Adaptation
The Effect of Visual Uncertainty on Implicit Motor Adaptation Open
Sensorimotor adaptation is driven by sensory prediction errors, the difference between the predicted and actual feedback. When the position of the feedback is made uncertain, adaptation is attenuated. This effect, in the context of optimal…
View article: Effects of visuomotor delays on the control of movement and on perceptual localization in the presence and absence of visual targets
Effects of visuomotor delays on the control of movement and on perceptual localization in the presence and absence of visual targets Open
The sensory system constantly deals with delayed feedback. Recent studies showed that playing a virtual game of pong with delayed feedback caused hypermetric reaching movements. We investigated whether this effect is associated with a perc…
View article: Adaptation to Laterally Asymmetrical Visuomotor Delay Has an Effect on Action But Not on Perception
Adaptation to Laterally Asymmetrical Visuomotor Delay Has an Effect on Action But Not on Perception Open
When interacting with the environment, the sensorimotor system faces temporal and spatial discrepancies between sensory inputs, such as delay in sensory information transmission, and asymmetrical visual inputs across space. These discrepan…
View article: Environmental Consistency Modulation of Error Sensitivity During Motor Adaptation is Explicitly Controlled
Environmental Consistency Modulation of Error Sensitivity During Motor Adaptation is Explicitly Controlled Open
Motor adaptation, the adjustment of sensorimotor representations in face of changes in the environment, may operate at different rates. When human participants encounter repeated or consistent perturbations, their corrections for the exper…
View article: Neglect-Like Effects on Drawing Symmetry Induced by Adaptation to a Laterally Asymmetric Visuomotor Delay
Neglect-Like Effects on Drawing Symmetry Induced by Adaptation to a Laterally Asymmetric Visuomotor Delay Open
In daily interactions, our sensorimotor system accounts for spatial and temporal discrepancies between the senses. Functional lateralization between hemispheres causes differences in attention and in the control of action across the left a…
View article: State-Based Delay Representation and Its Transfer from a Game of Pong to Reaching and Tracking
State-Based Delay Representation and Its Transfer from a Game of Pong to Reaching and Tracking Open
To accurately estimate the state of the body, the nervous system needs to account for delays between signals from different sensory modalities. To investigate how such delays may be represented in the sensorimotor system, we asked human pa…
View article: State-Based Delay Representation and Its Transfer from a Game of Pong to Reaching and Tracking
State-Based Delay Representation and Its Transfer from a Game of Pong to Reaching and Tracking Open
To accurately estimate the state of the body, the nervous system needs to account for delays between signals from different sensory modalities. To investigate how such delays may be represented in the sensorimotor system, we asked human pa…