Motor Control and Adaptation

Muscle Stiffness, Not Force, Limits Human Force Production

This study investigates how muscle stiffness, not force, limits human force production by testing the effects of wrist stabilization and limb configuration on maximum pushing force.

Dual agonist and antagonist muscle vibration produces a bias in end point with no change in variability

The paper investigates how muscle vibration affects target-directed reaching, finding that dual vibration causes endpoint bias without increasing movement variability.

Tool and hand adaptation and localization in immersive virtual reality

This study shows that visuomotor adaptation in immersive VR leads to recalibration of both hand and tool position perception, demonstrating generalization beyond cursor-based tasks.

Reward-driven cerebellar climbing fiber activity influences both neural and behavioral learning

This study investigates how cerebellar climbing fiber activity relates to reward prediction errors in learning, showing that CF signals share characteristics with reinforcement learning rPEs and influence motor behavior.

Differential participation of the corticospinal and corticorubral neurons during motor execution in the rat

The paper investigates the functional roles of corticospinal and corticorubral neurons in motor execution by optogenetically inhibiting them in rats and analyzing movement variability and kinematic parameters.

Smooth pursuit eye movements contribute to long-latency reflex modulation in the lower extremity

The paper shows that smooth pursuit eye movements modulate long-latency reflexes in the lower limb during virtual object interactions, suggesting a link between eye movement control and postural feedback.

The Influence of Force Field Perturbations on Symmetric and Asymmetric Bimanual Reaching

This study examines how different force field perturbations affect symmetric and asymmetric bimanual reaching, showing that kinematic parameters vary with load conditions while temporal aspects remain coupled under matched loads.

Two ways to learn in visuomotor adaptation

The paper investigates quantitative and qualitative differences in visuomotor adaptation by analyzing learning and forgetting rates, revealing two distinct learning strategies based on individual differences in fast and slow processes.

Sequential Effects in Reaching Reveal Efficient Coding in Motor Planning

The paper investigates motor planning by comparing Bayesian and efficient coding models, finding that movement biases and variability support efficient coding in dynamic environments.

A posture subspace in primary motor cortex

The paper shows that posture and goal information in motor cortex are organized in separate, orthogonal subspaces, with posture information being stable across tasks.

Lower-limb express visuomotor responses are spared in Parkinson's Disease during step initiation from a stable position

This study examines express visuomotor responses (EVRs) in Parkinson's Disease patients and healthy controls during step initiation, finding EVRs are preserved in low postural demand but absent in high demand, with disease severity affecting EVR magnitude.

Intrinsic spinal cord circuits compare sensory inputs and efference copies to correct for perturbations to ongoing movement

This study identifies dI3 neurons in the spinal cord that compare efference copies and sensory feedback to enable rapid movement corrections.

Adaptations in common synaptic inputs to spinal motor neurons during grasping versus a less functional hand task

The paper examines how common synaptic inputs to spinal motor neurons change during grasping versus less functional hand tasks, finding reduced alpha band coherence and improved force steadiness during grasping.

Attention defines the context for implicit sensorimotor adaptation

This study investigates how attention influences sensorimotor adaptation, finding that attention modulates learning by defining contextual cues rather than directly affecting adaptation rates.

Eye and hand coarticulation during problem solving reveals hierarchically organized planning

This study examines how participants coordinate eye and hand movements during problem-solving tasks, revealing hierarchical planning strategies through coarticulation in gaze and cursor movements.

Protection of savings by reducing the salience of opposing errors

This study investigates how different washout conditions affect savings in motor adaptation, finding that abrupt washout with large errors eliminates savings while gradual or no-feedback washout preserves it.

Gaze-related functions driving gaze anchoring in reaching

This study investigates gaze anchoring during reaching tasks, finding that gaze is anchored to targets in both visual and visual-haptic conditions, with differences in timing based on task requirements and hand involvement.

Tool-use brain representations are independent of the acting body part and motor experience

The paper shows that tool-use brain representations in motor association areas are independent of the acting body part and motor experience.

Preparation duration shapes the goal-directed tuning of stretch reflex responses

This study investigates how different preparatory delays affect goal-directed tuning of stretch reflex gains in specific muscles during a delayed-reach task.

Age-related differences in the cortical motor network during uni-manual and bimanual coordination - an EEG study

This study examines age-related differences in cortical motor network activity during unimanual and bimanual coordination using EEG, finding that older adults show reduced performance and altered alpha and beta activity in specific brain regions.

Tuning of Task-Relevant Stiffness in Multiple Directions

This study shows humans predictively adjust arm stiffness before movement to optimize task success, even at the cost of energy efficiency.

Volitional and forced running ability in mice lacking intact primary motor cortex

This study shows that mice can perform trained fast running without intact primary motor cortex, but the cortex contributes to the spontaneity of running.

Tactile stimulation transiently disrupts encoding of whisker position by cerebellar molecular layer interneuron ensembles

The paper shows that tactile stimulation disrupts the encoding of whisker position by cerebellar MLIs, suggesting a role in sensory feedback integration.

Neural Oscillations Coordinate Continuous Error Correction During Force Control

This study investigates how neural oscillations support continuous error correction during force control using EEG and an isometric force task with and without visual feedback.

Frontocentral brain networks amplify action-oriented temporal prediction errors

The paper investigates how action requirements influence temporal prediction errors in the human brain using MEG and computational modeling.

Arm Control and its Recovery after Selective Lesions of Sensorimotor Cortex and the Red Nucleus: A Kinematic Study in Non-Human Primates

This study examines arm control recovery after motor cortex and red nucleus lesions in monkeys, finding that damage to specific cortical areas and the rubrospinal tract affects movement speed and recovery differently.

Neural correlates of individual variability in reward-based motor learning

This study identifies neural correlates of reward-based motor learning, finding that FRN amplitude predicts learning efficiency while alpha ERD predicts retention, with no interaction with reinforcement conditions.

Striatal and cerebellar interactions during reward-based motor performance

This study investigates brain interactions during reward-based motor tasks, finding that ventral striatum and cerebellum show distinct activity and connectivity patterns based on task outcomes and individual preferences.

Corrective sub-movements link feedback to feedforward control in the cerebellum

The paper shows that corrective sub-movements during mouse reaching are encoded in cerebellar neurons and instructively shape future feedforward control through timing-based learning.

Global motor system suppression as the primary mechanism of human action stopping: challenging the pause-then-cancel model

This study challenges the pause-then-cancel model of action stopping by showing global motor suppression alone is sufficient to stop movement, using electromyography and transcranial magnetic stimulation in stop-signal tasks.