Motor Skills

321.

Downregulation of striatal dopamine D2 receptors in advanced Parkinsons disease contributes to the development of motor fluctuation.

The purpose of this study was to evaluate the contribution of the postsynaptic mechanism to the development of motor fluctuation in advanced Parkinsons disease (PD). We used 123I-iodobenzamide single-photon emission computed tomography to measure the ...
Wen-Jun Hwang, Wei-Jen Yao, Shiaw-Pyng Wey, Lie-Hang Shen, Gann Ting (Eur Neurol, 2002)
downregulation-striatal-dopamine-d-receptors-advanced-parkinson-s.asp

322.

A sex difference in reliance on vision during manual sequencing tasks.

The manual praxis system is a left-hemisphere based motor programming system that is involved in the selection of hand and arm movements and is particularly important for the control of movements made with minimal external sensory guidance. Few studies ...
Karen Chipman, Elizabeth Hampson, Doreen Kimura (Neuropsychologia, 2002)
sex-difference-reliance-vision-manual-sequencing-tasks.asp

323.

Does visual perception of object afford action? Evidence from a neuroimaging study.

Positron emission tomography (PET) was used to explore the neural correlates of a potential involvement of motor representation during the perception of visually presented objects with different tasks. The main result of this study was that the ...
J Grèzes, J Decety (Neuropsychologia, 2002)
visual-perception-object-afford-action-evidence-neuroimaging-study.asp

324.

Preschool children with developmental coordination disorder: a short-term follow-up of motor status at seven to eight years of age.

At a population-based screening of 5-6-y-old children, 37 children were identified as having definite or borderline motor difficulties consistent with developmental coordination disorder. When 7-8 y old they were re-examined to determine their current ...
M Pless, M Carlsson, C Sundelin, K Persson (Acta Paediatr, 2002)
preschool-children-developmental-coordination-disorder-short-term.asp

325.

Deficits in executive functions and motor coordination in children with frontal lobe epilepsy.

Frontal lobe dysfunction in adults has been associated with impairments of planning abilities, working memory, impulse control, attention and certain aspects of motor coordination. However, very few studies have attempted to assess these functions in ...
Maria Teresa Hernandez, Hannelore C Sauerwein, Isabelle Jambaqué, Elaine De Guise, Francine Lussier, Anne Lortie, Olivier Dulac, Maryse Lassonde (Neuropsychologia, 2002)
deficits-executive-functions-motor-coordination-children-frontal-lobe.asp

326.

Intermanual transfer of a new writing occupation in young adults without disability.

It has been shown that acquisition of a skill by one hand is facilitated by previous learning of the same skill with the other hand. This is called intermanual transfer of learning, or cross-education. The investigators examined intermanual transfer of ...
Megan E Andree, Kinsuk K Maitra (Occup Ther Int, 2002)
intermanual-transfer-new-writing-occupation-young-adults-disability.asp

327.

Evolution of human intelligence: the roles of brain size and mental construction.

Two competing philosophical paradigms characterize approaches to the evolution of the human mind. One postulates continuity between animal and human behavioral capacities. The other assumes that humans and animals are separated by major qualitative ...
Kathleen R Gibson (Brain Behav Evol, 2002)
evolution-human-intelligence-roles-brain-size-mental-construction.asp

328.

Functional magnetic resonance imaging for the evaluation of the motor system: primary and secondary brain areas in different motor tasks.

Functional magnetic resonance imaging was used to characterize the primary and secondary motor system in subjects performing different motor tasks. Nine right-handed subjects performed simple motor tasks using hand, foot, knee, tongue, lips, eyes and the ...
Michael Rotte, Martin Kanowski, Hans-Jochen Heinze (Stereotact Funct Neurosurg, 2002)
functional-magnetic-resonance-imaging-evaluation-motor-system-primary.asp