M. Santello

Publications191
h-index34
Citations5,976
Highly Influential Citations387
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Postural Hand Synergies for Tool Use
TLDR
The results suggest that the control of hand posture involves a few postural synergies, regulating the general shape of the hand, coupled with a finer control mechanism providing for small, subtle adjustments. Expand
Review of motor control mechanisms underlying impact absorption from falls.
TLDR
An understanding of the motor control mechanisms underlying impact absorption is essential to understand common anticipatory and reflex mechanisms involved in a broader variety of movements such as running and jumping. Expand
The control of timing and amplitude of EMG activity in landing movements in humans
TLDR
The observed pattern of co‐contraction is responsible for increasing ankle joint stiffness as fall height is increased and the attainment of an appropriate level of EMG amplitude seems to be controlled by timing muscle activation at a latency timed from the expected instant of foot contact and varying the rate at which EMG builds up. Expand
Hand function: peripheral and central constraints on performance.
TLDR
Experimental evidence indicates that the simultaneous motion and force of the fingers are characterized by coordination patterns that reduce the number of independent degrees of freedom to be controlled, and peripheral and central constraints in the neuromuscular apparatus have been identified that may in part underlie these coordination patterns. Expand
Patterns of Hand Motion during Grasping and the Influence of Sensory Guidance
TLDR
A principal components analysis was developed to provide a concise description of the spatiotemporal patterns underlying the motion of temporal synergies of hand movement and the influence of sensory cues on the control of these synergies. Expand
Gradual molding of the hand to object contours.
TLDR
The results indicate that the hand is molded only gradually to the contours of an object to be grasped, and suggest that the specification of diverse aspects of a movement does not evolve at a uniform rate. Expand
Visual and non‐visual control of landing movements in humans
TLDR
It is suggested that vision is important for the very accurate timing of muscle activity onset and the kinematics of landing, and non‐visual sensory information could not fully compensate for the lack of continuous visual feedback and this non-visual information was used to reorganise the motor output. Expand
Influence of fatigue on hand muscle coordination and EMG-EMG coherence during three-digit grasping.
TLDR
Findings suggest that similar mechanisms are involved for modulating and sustaining digit forces in nonfatiguing and fatiguing contractions, respectively. Expand
Anticipatory Planning and Control of Grasp Positions and Forces for Dexterous Two-Digit Manipulation
TLDR
Digit load force modulation compensated for position variability, thus ensuring consistent object roll minimization on each trial, and indicates that subjects learned object manipulation by integrating sensorimotor memories with sensory feedback about digit positions. Expand
Choice of Contact Points during Multidigit Grasping: Effect of Predictability of Object Center of Mass Location
TLDR
It is concluded that choice of contact points is integrated with anticipatory force control mechanisms to facilitate object manipulation and that planning of digit placement is an important component of grasp control. Expand
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