Motor Control and Adaptation

Locomotion-induced ocular motor behavior in larval Xenopus is developmentally tuned by visuo-vestibular reflexes

The paper shows that in larval Xenopus, eye movements during swimming develop through changes in how locomotor efference copies and sensory signals interact, with a shift from canceling to summing vestibular inputs as the animal matures.

3D pose estimation enables virtual head-fixation in freely moving rats

This paper introduces a framework for 3D pose estimation in freely moving rats to remove movement artifacts from neural recordings, revealing new insights into motor cortex neuron tuning.

Multimodal sensory control of motor performance by glycinergic interneurons of the spinal cord deep dorsal horn.

This study identifies glycinergic inhibitory neurons in the spinal cord deep dorsal horn that integrate sensory inputs and modulate motor output during locomotion.

Simulation of the effect of the randomness of climbing fiber input on the relationship between motor learning and Focal Task-Specific Dystonia

The paper simulates the effect of random climbing fiber input on motor learning and links it to the pathogenesis of Focal Task-Specific Dystonia.

Cerebellar motor memory expression requires learned alterations to the activity of inhibitory molecular layer interneurons

The paper shows that changes in molecular layer interneuron activity are necessary for expressing motor memory in the cerebellum after error-driven learning.

The role of intraspinal sensory neurons in the control of quadrupedal locomotion

This study identifies a role for cerebrospinal fluid-contacting neurons in mouse quadrupedal locomotion by showing their integration into spinal motor circuits and their impact on foot placement accuracy.

Learning from the physical consequences of our actions improves motor memory

This study shows that experiencing physical consequences from movement errors enhances motor memory and generalization compared to no consequences.

Reward timing matters in motor learning

This study shows that reward timing affects motor learning, with short delays leading to continuous gains and long delays causing early plateaus and reduced consolidation.

Predicting individual skill learning, a cautionary tale

This study uses machine learning to predict individual skill learning from initial performance data, finding strong correlations between initial and final performance but no predictive power of the models.

The cerebellum encodes and influences the initiation and termination of discontinuous movements

This study shows that cerebellar Purkinje cells encode timing for initiating and terminating licking movements in mice, with distinct activity patterns for different movement contexts.

Even well-practiced movements benefit from repetition

This study shows that repeating well-practiced movements reduces movement variability and improves precision, even in short sequences of reaching tasks.

Dissociating experience-dependent and maturational changes in fine motor function during adolescence

This study examines how experience and maturation influence fine motor skills in adolescents, showing task complexity affects experience-driven improvements while simple tasks are shaped by maturation.

Time-of-day influences on skill acquisition and consolidation after physical and mental practices

This study investigates how time-of-day affects motor skill acquisition and consolidation after physical and mental practice, finding better consolidation in the afternoon for both types of practice.

Hasty sensorimotor decisions rely on an overlap of broad and selective changes in motor activity

The paper shows that hasty decisions involve broad motor activity amplification and local suppression, improving signal-to-noise ratio in the chosen motor representation.

Neural structure of a sensory decoder for motor control

The paper investigates neural mechanisms of sensory decoding for motor control, finding that traditional models fail to explain behavioral variance and proposing a circuit model with flexible transmission adjustment.

Moving in on human motor cortex. Characterizing the relationship between body parts with non-rigid population Response Fields.

The paper characterizes body part relationships in motor cortices using a non-rigid population Response Field model and graph theory, revealing somatotopic structures and unique response profiles for specific body parts.

Neural Excursions from Low-Dimensional Manifold Structure Explain Intersubject Variation in Human Motor Learning

The paper investigates how neural excursions from a low-dimensional manifold structure in brain networks relate to intersubject variation in motor learning.

Cue-driven motor planning facilitates express visuomotor responses in human arm muscles

The paper shows that symbolic cues modulate express visuomotor responses in human arm muscles, suggesting motor plan-level modulation rather than early visuospatial processing.

Decision heuristics in contexts exploiting intrinsic skill

The paper investigates whether heuristic decision-making in action selection correlates with skill in action execution, finding that heuristic users show skill advantages in spatially relevant aspects.

Muscle effort is best minimized by the right-dominant arm in the gravity field

The study finds that the dominant arm minimizes muscle effort more effectively than the non-dominant arm during vertical arm movements, as indicated by directional asymmetries and reduced negative epochs in muscular activity.

Electrophysiological signatures reveal spinal learning mechanisms for a lasting sensorimotor adaptation

The paper identifies spinal inhibitory interneurons involved in sensorimotor adaptation through electrophysiological recordings and behavioral analysis in mice.

Mixed selectivity in the cerebellar Purkinje-cell response during visuomotor association learning

The paper investigates how Purkinje cells in the cerebellum respond during visuomotor learning, finding mixed selectivity between movement and reward signals.

Synchronous spiking of cerebellar Purkinje cells during control of movements

This study shows that cerebellar Purkinje cells use spike synchronization, not firing rates, to signal when to stop saccadic eye movements in marmosets.

Dynamic adaptation of sequential action benefits from cortico-basal ganglia-related temporal variability

The paper shows that variability in action timing, mediated by the M1[->]DLS circuit, is crucial for adapting action sequences in a two-lever instrumental task in mice.

Interactions between sensory prediction error and task error during implicit motor learning

The paper investigates how sensory prediction errors and task errors interact in implicit motor learning and finds that task errors alone cannot drive recalibration but modulate it when sensory prediction errors are present.

Task space exploration improves adaptation after incompatible virtual surgeries

The paper shows that task space exploration improves adaptation after incompatible virtual surgeries by enabling learning of new muscle synergies.

Leveraging joint mechanics simplifies the neural control of movement

The paper shows that aligning tasks with ankle joint mechanics reduces muscular effort and improves task performance and perception of ease.

Express Arm Responses Appear Bilaterally on Upper-limb Muscles in An Arm Choice Reaching Task

The paper shows express arm responses occur bilaterally in upper-limb muscles during reaching tasks, supporting the involvement of the reticulo-spinal tract.

Eye-hand coordination during online reach corrections is task-dependent

This study examines how eye-hand coordination during movement corrections depends on task-specific visual and cognitive demands, finding that hand corrections typically precede eye corrections in certain conditions.

Finger stability in precision grips

This study shows that finger stability during precision grips is primarily due to muscle stiffness rather than feedback control, and external stiffness can enhance force application but may reduce adaptability.