Motor Control and Adaptation

Engaging Working Memory following Skill Reactivation has Implications for Interlimb Skill Generalization

This study investigates how working memory engagement after skill reactivation affects interlimb skill generalization, finding a time-dependent dual effect: enhancing immediate generalization but impairing it after a 24-hour delay.

Neural representation of action symbols in primate frontal cortex

The paper identifies a neural representation of action symbols in the ventral premotor cortex of macaque monkeys performing a drawing-like task.

When anticipation is not enough: a mixture of robust and adaptive feedback control strategies improve reaching in dynamic environments

This study examines how the central nervous system uses different feedback control strategies during reaching tasks in varying environments, finding that robust control and online adaptation are used differently depending on predictability.

Anticipated Loss of Action Consequences Disrupts Motor Execution in Skilled Basketball Shooting

This study shows that anticipating the loss of post-action feedback reduces shooting accuracy in basketball, suggesting that motor execution relies on the predictability of sensory feedback.

A Context-Free Model of Savings in Motor Learning

The paper shows that recurrent neural networks (RNNs) exhibit motor learning savings without explicit contextual cues, suggesting a neural basis for memory retention through high-dimensional activity shifts.

Learning a reversed bicycle disrupts predictive control and induces interference with the normal bicycle

This study shows that learning to ride a reversed bicycle disrupts predictive control and causes interference with normal bicycle riding, even after short-term exposure.

Minimal Impact of Low Vision on Explicit Sensorimotor Adaptation

This study investigates how low vision affects explicit motor adaptation and finds no measurable impact on discovering or recalling sensorimotor strategies.

A framework for quantifying the mechanics of dexterous grasp

The paper develops a framework to quantify the mechanics of primate dexterous grasp by measuring contact forces, kinematics, and joint torques using an experimental apparatus and musculoskeletal modeling.

Tonic feedback motor commands predict visuomotor learning

The paper shows that the amplitude of feedback responses during a holding period predicts the magnitude of learning responses in visuomotor tasks.

Neural coding of arm and hand actions is spatially organized in motor cortex

The paper shows that neural activity encoding arm and hand movements is spatially organized in motor cortex, with distinct functional selectivity between arm and hand zones during reach-to-grasp tasks.

Neuromodulation enables transient flexible control of motoneurons

The paper shows that neuromodulation enables transient decorrelation of motoneurons with shared inputs, explaining flexible control through differential sensitivity to neuromodulation.

Rapid experience-dependent tuning of spinal and transcortical stretch reflexes supports goal-directed movement

This study shows that spinal stretch reflexes adapt rapidly within a single session to support goal-directed movements, with no such adaptation observed with shorter preparatory delays.

An 'Aha!' moment precedes the strategic response to a visuomotor rotation

The paper investigates strategic behavior in sensorimotor adaptation tasks and finds that participants often experience an 'Aha!' moment leading to an abrupt shift in strategy.

Sequence preparation is not always associated with a reaction time cost

The paper investigates whether increased reaction time for longer movement sequences reflects sequence preparation or first-target ambiguity, finding that RT increases are fully explained by ambiguity, not sequence preparation.

A causal role for the posterior corpus callosum in bimanual coordination

This study shows that posterior corpus callosum connections between parietal reach regions are causally involved in bimanual coordination, affecting movement timing and spatial coordination.

Interference Between Motor Memories Arises From Implicit Recalibration

The paper investigates how interference between motor memories occurs through implicit recalibration, showing that explicit strategies reduce interference and PPC involvement is necessary for implicit learning.

Where you aim - not how you aim - affects implicit recalibration in visuomotor adaptation

The paper investigates how different explicit strategies affect implicit recalibration during visuomotor adaptation and finds no strategy-related differences after controlling for movement variability.

Drifting population dynamics with transient resets characterize sensorimotor transformation in the monkey superior colliculus

The paper analyzes neural activity in the superior colliculus of monkeys during a saccade task, identifying dynamics of sensorimotor transformation through a novel measure called the Visuomotor Proximity Index.

Beyond Reach I: Neuroimaging Reveals Different Cortico-cerebellar Networks for Grasp vs. Object Placement.

The paper uses fMRI to compare neural networks for grasp and object placement tasks, finding task-specific differences in cerebellar and prefrontal activation.

A sensorimotor instability drives a locomotor transition during fish development

The paper identifies a sensorimotor instability driving a locomotor transition in Danionella cerebrum, showing it is an energy-saving strategy linked to swimming strength.

Task-Relevant Haptic Feedback Improves Asymptotic Performance in de novo Arm Control Acquisition

This study shows that task-relevant haptic feedback improves asymptotic performance in learning to control a virtual arm, with more complete error reduction and robust after-effects compared to kinematic mapping.

Motor Equivalence in Motor Awareness

This study investigates motor awareness across different effectors and finds it is comparable in some conditions but relies on effector-specific information in conflicting scenarios.

Revisiting the explicit-implicit additivity assumption in visuomotor adaptation

The paper investigates the relationship between explicit aiming strategies and implicit recalibration in visuomotor adaptation, finding a sub-additive relationship after accounting for spatial and temporal dynamics.

Effects of sensorimotor delays and muscle force capacity limits on the performance of feedforward and feedback control in animals of different sizes

This study compares feedforward and feedback control in animals of different sizes, finding that feedforward control is more effective for rapid perturbation responses across all sizes.

How individual vigor shapes human-human physical interaction

This study shows how individual vigor affects dyadic coordination in physical tasks, with slower partners influencing dyadic vigor and coordination patterns.

Optimal foraging requires coordinating decisions with movements

This study trains monkeys to forage by reaching, showing their decision-action coordination optimizes reward rate.

Consolidation Separates Implicit and Explicit Components of Compound Motor Memories

This study shows that consolidation separates implicit and explicit components of compound motor memories, making them context-dependent after 24 hours.

From Inhibition to Excitation and Why: The Role of Temporal Urgency in Modulating Corticospinal Activity

This study examines how urgency affects corticospinal suppression during movement preparation, finding no suppression under high urgency and increased disruption from external events.

Multi-area activity in mouse motor cortex associated with one- and two-handed oromanual dexterity

This study examines how motor cortex activity in mice changes during unimanual and bimanual food handling tasks, revealing distinct roles for different motor areas.

Perceptual prediction error supports implicit process in motor learning.

The paper shows that movement prediction error, not performance error, drives implicit motor learning through perceptual estimates of hand kinematics.