OBJECTIVE To investigate changes in arm hand skilled performance during and after active rehabilitation in (sub)groups of subjects with cervical spinal cord injuries. DESIGN Longitudinal multi-centre cohort study. PATIENTS Persons with cervical spinal cord injuries during (n?=?57) and after (n?=?35) rehabilitation. METHODS Patients from 8 Dutch rehabilitation centres received therapy as u...

How motor maps are organized while imagining actions is an intensely debated issue. It is particularly unclear whether motor imagery relies on action-specific representations in premotor and posterior parietal cortices. This study tackled this issue by attempting to decode the content of motor imagery from spatial patterns of Blood Oxygen Level Dependent (BOLD) signals recorded in the frontopar...

BACKGROUND After stroke, deregulated interhemispheric interactions influence residual paretic hand function. Anodal or cathodal transcranial direct current stimulation (tDCS) can rebalance these abnormal interhemispheric interactions and improve motor function. OBJECTIVE We explored whether dual-hemisphere tDCS (dual-tDCS) in participants with chronic stroke can improve fine hand motor functi...

Because humans have limited ability to independently control the many joints of the hand, a wide variety of hand shapes can be characterized as a weighted combination of just two or three main patterns of covariation in joint rotations, or "postural synergies." The present study sought to align muscle synergies with these main postural synergies and to describe the form of membership of motor u...

The present study sought to uncover what constraints shape the early development of the perceptual–motor skill of catching, and how intrinsic (i.e., movement possibilities) and extrinsic constraints (i.e., object speed imposes temporal precision) impinge on the perception of whether or not a moving object affords catching. Thirty-five infants (with different preferred catching tendencies) betwe...