Motor Control and Adaptation

Baseline dependent differences in the perception of changes in visuomotor delay

This study investigates how perception of visuomotor delay changes depends on baseline delay, finding that larger delays lead to more accurate and faster detection of changes, contradicting Weber-Fechner Laws.

Role and modulation of various spinal pathways for human upper limb control in different gravity conditions

The paper investigates how spinal pathways and supraspinal commands modulate upper limb control in different gravity conditions using neuromusculoskeletal simulations.

Targeted stimulation of motor cortex neural ensembles drives learned movements

The paper shows that stimulating specific M1 neurons in mice can induce learned movements and activity patterns, supporting M1's active role in motor learning.

VTA projections to M1 are essential for reorganization of layer 2-3 network dynamics underlying motor learning

This study shows that VTA dopaminergic inputs to M1 are essential for reorganizing layer 2-3 network dynamics during motor learning.

Baclofen, a GABAB receptor agonist, impairs motor learning in healthy people and changes inhibitory dynamics in motor areas

This study shows baclofen, a GABAB receptor agonist, impairs motor learning and reduces expected decreases in GABA levels during motor learning.

Mapping Hand Function with Simultaneous Brain-Spinal Cord Functional MRI

This study uses simultaneous brain-spinal cord fMRI to map neural activity related to hand strength and dexterity, revealing graded activation and inhibition patterns across motor and sensory regions.

Failed stopping transiently suppresses the electromyogram in task-irrelevant muscles

The paper shows that failed stopping of a movement causes transient inhibition in task-irrelevant muscles, measured via EMG, lasting 150-203 ms after a stop signal.

Effects of Uni- and Bidirectional Interaction During Dyadic Ankle and Wrist Tracking

This study examines how uni- and bidirectional haptic interactions affect motor performance and muscle activation during wrist and ankle tracking tasks, finding mutual benefits in bidirectional interaction across limbs.

The effect of gravity on hand spatio-temporal kinematic features during functional movements

This study examines how gravity affects hand movement kinematics during functional tasks, finding significant differences in movement planning, smoothness, efficiency, and accuracy when movements are against or with gravity.

Motor decision-making under uncertainty and time pressure

The paper investigates motor decision-making under uncertainty and time pressure, finding that reaching dynamics reflect only the selected action, not an average of alternatives.

Diversity of set-related neuronal activity in the dorsal premotor cortex of monkeys during a path-planning task

The paper records neuronal activity in monkeys' dorsal premotor cortex during a path-planning task, finding diverse neurons involved in different levels of action preparation.

Encoding of natural variability in a dexterous motor skill over multiple days in the cortex of freely behaving mice

The paper examines how movement variability is encoded in the motor cortex of mice over multiple days, finding that most neurons maintain stable encoding despite small declines in similarity over time.

Neural dynamics hierarchy in motor cortex and striatum across naturalistic behaviors

This study investigates neural dynamics in motor cortex and striatum across diverse motor behaviors in mice, finding a hierarchical organization that applies to both regions despite differences in behavior specificity and muscle activity correlation.

Quantifying the diverse contributions of hierarchical muscle interactions to motor function

This study quantifies hierarchical muscle interactions' contributions to motor function using Partial Information Decomposition, revealing networks linked to balance and motor variability.

Rapid, systematic updating of movement by accumulated decision evidence

The paper shows that motor responses are systematically updated by decision evidence accumulation, using rat and human data in a choice task.

Predicting proprioceptive cortical anatomy and neural coding with topographic autoencoders

The paper develops a topographic autoencoder to model proprioceptive cortical coding and predicts neural manifold structures from natural movement data.

MEG signals reveal arm posture coding and intrinsic movement plans in parietofrontal cortex

This study uses MEG to identify posture coding and intrinsic movement plans in parietofrontal cortex during wrist pointing tasks, revealing distinct but overlapping networks for intrinsic and extrinsic motor codes.

The brain's sensitivity to sensory error can be modulated by altering perceived variability

This study shows that altering perceived variability can modulate neural sensitivity to auditory errors during speech production, supporting error-based learning mechanisms.

A control policy can be adapted to task demands during both motor execution and motor planning

This study investigates whether adjusting control policies to task demands occurs during motor planning or execution and finds that it can happen during both phases.

Parkinson's Disease affects the contextual control, but not the expression, of a rapid visuomotor response that initiates visually-guided reaching: Evidence for multiple, interacting motor pathways and implications for motor symptoms in Parkinson's Disease

This study shows that Parkinson's disease preserves the speed and strength of a reflexive visuomotor response but impairs its contextual modulation, suggesting distinct motor pathways are affected.

Spatial and directional tuning of serial dependence for tracking eye movements

The paper investigates serial dependence in oculomotor tracking, finding retinotopic and direction-tuned components of serial dependence.

Co-Contraction Embodies Uncertainty: An Optimal Feedforward Strategy for Robust Motor Control

The paper shows that muscle co-contraction increases with environmental uncertainty to stabilize motor control when feedback is insufficient.

Compensating for a sensorimotor delay requires a predictor that convolves over a memory buffer of efference copies

The paper evaluates three sensorimotor delay compensation mechanisms in balance control, finding that a convolution predictor is effective while gain scaling is insufficient and the Smith predictor is implausible.

Rapid eye and hand responses in an interception task are differentially modulated by context-dependent predictability

This study examines how context-dependent predictability affects eye and hand coordination during a rapid interception task, finding differential modulation of reaction times and vigor based on certainty and urgency.

Neural Encoding of Direction and Distance across Reference Frames in Visually Guided Reaching

This study uses fMRI and Bayesian modeling to show that direction and distance in motor planning are encoded independently in different reference frames across the dorsomedial reach pathway.

Time affects a time-consuming, flexible component and a fast, inflexible component of sensorimotor adaptation.

The paper investigates how time affects two distinct components of sensorimotor adaptation: a flexible error-driven component and a less-flexible error-driven component, finding that time alters both.

Cortical areas for planning sequences before and during movement

The paper investigates how cortical areas contribute to pre-planning and online planning of movement sequences using fMRI in humans.

Dissociable effects of urgency and evidence accumulation during reaching revealed by dynamic multisensory integration

This study investigates how urgency and evidence accumulation affect multisensory integration during reaching, showing that visual feedback contributions vary with uncertainty and movement speed.

Humans anticipate the consequences of motor control demands when making perceptual decisions between actions

The paper shows that humans adjust perceptual decision times based on movement difficulty and motor cost, with greater impact on difficult decisions.

Processing reliant on granule cells is essential for motor learning but dispensable for many cerebellar-dependent behaviors

The paper shows that granule cell signaling is essential for motor learning but not for many cerebellar-dependent behaviors, while Purkinje cell signaling affects both motor learning and other behaviors.