Motor Skills

171.

Linking actions and their perceivable consequences in the human brain.

Voluntary action is goal-directed and therefore depends on the ability to learn associations between movements and their perceivable consequences. The neural substrate of this ability was investigated with H2(15O) positron emission tomography (PET). ...
Birgit Elsner, Bernhard Hommel, Claudia Mentschel, Alexander Drzezga, Wolfgang Prinz, Bastian Conrad, Hartwig Siebner (Neuroimage, 200209)
linking-actions-perceivable-consequences-human-brain.asp

172.

The development of coordination for reach-to-grasp movements in children.

When adults reach to grasp stationary targets, movement kinematics (endpoint trajectories, interjoint coordination) are highly stereotyped and stable. The emergence of an optimal coordination for reaching involves mastering the redundant number of ...
Sheila Schneiberg, Heidi Sveistrup, Bradford McFadyen, Patricia McKinley, Mindy F Levin (Exp Brain Res, 200209)
development-coordination-reach-grasp-movements-children.asp

173.

Cerebellar structure and function: making sense of parallel fibers.

Many parts of the brain have to cooperate in a finely tuned way in order to generate coordinated motor output. Parameters of these cooperations are adjusted during early childhood development and years of motor learning later in life. The cerebellum ...
Detlef Heck, Fahad Sultan (Hum Mov Sci, 200209)
cerebellar-structure-function-making-sense-parallel-fibers.asp

174.

Spatial constraints in bimanual coordination: influences of effector orientation.

Two experiments are reported that examined the influence of spatial orientation of the upper limbs in bimanual coordination. In both experiments, the upper limbs were oriented in either parallel, orthogonal, or obtuse spatial configurations and ...
Timothy D Lee, Quincy J Almeida, Romeo Chua (Exp Brain Res, 200209)
spatial-constraints-bimanual-coordination-influences-effector.asp

175.

Psychophysiological approach in Parkinsons disease: L-dopa effects on preprogramming and control activity.

To investigate whether preprogramming (Bereitschaftspotential, BP) and control activity (skilled performance positivity, SPP) in a complex task are sensitive to L-dopa, movement related potentials (MRPs) were recorded in 12 non-demented Parkinsons ...
F Fattapposta, F Pierelli, F My, M Mostarda, S Del Monte, L Parisi, M Serrao, N Locuratolo, G Amabile (Neurol Sci, 200209)
psychophysiological-approach-parkinson-s-disease-l-dopa-effects.asp

176.

Individual pathways in the development of forceful throwing.

Halverson, Roberton, and Langendorfer (1982) reported the development of children ages 6-13 years filmed longitudinally performing the forceful overarm throw. These authors described the childrens progress through developmental sequences for trunk, ...
Stephen J Langendorfer, Mary Ann Roberton (Res Q Exerc Sport, 200209)
individual-pathways-development-forceful-throwing.asp

177.

Determinants of the sit-to-stand movement: a review.

BACKGROUND AND PURPOSE: The sit-to-stand (STS) movement is a skill that helps determine the functional level of a person. Assessment of the STS movement has been done using quantitative and semiquantitative techniques. The purposes of this study were to ...
Wim G M Janssen, Hans B J Bussmann, Henk J Stam (Phys Ther, 200209)
determinants-sit-stand-movement-review.asp

178.

Dual task interference during gait in people with Parkinson disease: effects of motor versus cognitive secondary tasks.

BACKGROUND AND PURPOSE: Exacerbation of movement disorders while doing 2 tasks (dual task performance) is a characteristic feature of Parkinson disease (PD). The aim of this investigation was to identify whether the type of secondary task (motor or ...
Simone OShea, Meg E Morris, Robert Iansek (Phys Ther, 200209)
dual-task-interference-gait-people-parkinson-disease-effects-motor.asp

179.

Direct comparison of neural systems mediating conscious and unconscious skill learning.

Procedural learning, such as perceptual-motor sequence learning, has been suggested to be an obligatory consequence of practiced performance and to reflect adaptive plasticity in the neural systems mediating performance. Prior neuroimaging studies, ...
Daniel B Willingham, Joanna Salidis, John D E Gabrieli (J Neurophysiol, 200209)
direct-comparison-neural-systems-mediating-conscious-unconscious.asp

180.

Obstacle avoidance during human walking: transfer of motor skill from one leg to the other.

The aim of this study was to evaluate whether a newly acquired locomotor skill can be transferred to the mirror condition. Subjects were trained to step over an obstacle on a treadmill, the appearance of which was signalled by an acoustic stimulus, while ...
H J A van Hedel, M Biedermann, T Erni, V Dietz (J Physiol, 200209)
obstacle-avoidance-human-walking-transfer-motor-skill-one-leg-other.asp