Motor Control and Adaptation

The paper examines how muscle synergy activation coefficients change with movement proficiency and learning, finding increased trial-to-trial similarity and distinctness.

The paper compares goal-directed modulation of stretch reflex gains between dominant and non-dominant upper limbs, finding weaker tuning in the non-dominant limb.

This study shows that motivation increases the rate of adaptive response in motor learning, enhancing the speed of learning.

This study investigates how motor direction representation changes in primate premotor and primary motor cortices during learning, finding that PMdc neurons dynamically adjust their preferred direction while M1 neurons maintain stability.

This study investigates how express visuomotor responses (EVRs) in lower limbs interact with postural control during stepping, finding that EVRs are suppressed under high postural demands.

This study finds no difference in motor adaptation between abrupt and gradual visuomotor rotation perturbations across different age groups and cerebellar ataxia conditions.

The paper shows that cerebellar climbing fibers encode multiple behavioral variables and are organized into functional modules in mice.

This study determines the optimal granule cell representation for cerebellar learning tasks beyond random stimulus discrimination, finding that dense representations are more optimal for continuous input-output transformations.

This study shows motor cortex is needed for flexible, cue-driven motor sequences but not for automatic sequences, and this dependency changes when sequences are practiced together.

This study investigates how the sensorimotor striatum contributes to automatic and visually-guided motor sequences in rats, finding that it is essential for automatic skills but not sensory-guided sequences.

This study examines the effect of dopamine D2 receptor blockade on motor skill acquisition and consolidation in humans, finding reduced acquisition but no impact on consolidation.

This study investigates how visual feedback affects corticostriatal activity during motor skill learning, finding distinct neural responses in striatal subregions and the vmPFC depending on feedback type.

The paper investigates whether age-related reduction in movement vigor is due to decreased reward valuation or increased effort costs, finding that older adults expend more energy during reaching and show less reward sensitivity.

This study investigates neural changes during the learning of finger press sequences, finding reduced brain activity in secondary motor areas correlates with learning.

This paper infers control objectives from behavior in humans and monkeys using a generative model and behavioral signatures, validated through instructed tasks.

The paper shows that higher surface folding of the human premotor cortex predicts better long-term learning in a motor task, independent of other structural factors.

The paper integrates eye tracking, motion capture, and photogrammetry to show that walkers use terrain structure to select paths, avoiding steep steps and planning flatter routes.

This study uses fMRI to show that the human superior colliculus is active during reaching movements guided by both visual and tactile targets, indicating its general role in upper limb reaching independent of sensory modality.

The paper measures motor planning in mice using a delayed response task and finds that motor readiness affects reaction time and movement accuracy, with online readouts of prepared actions.

This study shows that binary feedback can drive implicit motor learning, as evidenced by a consistent aftereffect in a center-out reaching task.

The paper investigates whether goal-directed movements follow pre-planned trajectories or result from online control, finding evidence of early feedback control and varying controller gains during movements.

This paper models cerebellar contributions to three stages of saccadic eye movement learning in patients and controls, finding cerebellar pathology affects two stages but not the forward dynamics model.

The paper shows that suppressing molecular layer interneurons (MLIs) in mice enables climbing-fiber-mediated motor learning during the vestibulo-ocular reflex, even without performance errors.

This paper proposes a heuristic model of motor control that integrates movement from target to endpoint, simulates human arm motion, and addresses degrees of freedom in robotics.

The paper investigates whether first-person shooter (FPS) games can serve as a valid tool for studying sensorimotor control by comparing kinematic metrics across different visual feedback conditions.

This study shows that Rhesus Macaques exhibit express visuomotor responses in upper limb muscles with latencies of ~65 ms, similar to humans but faster, suggesting shared but distinct visuomotor transformation mechanisms.

This study investigates how intentional suppression of kinematic performance affects the use of implicit and explicit memories in sensorimotor adaptation to unpredictable spring-like loads.

This study tracks motor variability in infants from birth to walking onset, showing how variability arises from a small number of motor primitives early on and becomes more regular as more primitives develop.

The paper uses fMRI to compare neural activation patterns during isolated prehension and prehension for object manipulation, finding distinct patterns involving visual and sensorimotor areas.

The paper investigates an optimal error rate for motor skill learning and finds that performance improves most at around 30% error rate.