Back to Search
Start Over
Rhythmic arm movement is not discrete
- Source :
- Nature Neuroscience. 7:1136-1143
- Publication Year :
- 2004
- Publisher :
- Springer Science and Business Media LLC, 2004.
-
Abstract
- Rhythmic movements, such as walking, chewing or scratching, are phylogenetically old motor behaviors found in many organisms, ranging from insects to primates. In contrast, discrete movements, such as reaching, grasping or kicking, are behaviors that have reached sophistication primarily in younger species, particularly primates. Neurophysiological and computational research on arm motor control has focused almost exclusively on discrete movements, essentially assuming similar neural circuitry for rhythmic tasks. In contrast, many behavioral studies have focused on rhythmic models, subsuming discrete movement as a special case. Here, using a human functional neuroimaging experiment, we show that in addition to areas activated in rhythmic movement, discrete movement involves several higher cortical planning areas, even when both movement conditions are confined to the same single wrist joint. These results provide neuroscientific evidence that rhythmic arm movement cannot be part of a more general discrete movement system and may require separate neurophysiological and theoretical treatment.
- Subjects :
- Adult
Male
Periodicity
Movement
Models, Neurological
Brain mapping
Functional Laterality
Rhythm
Functional neuroimaging
Neural Pathways
Biological neural network
Humans
Brain Mapping
Movement (music)
General Neuroscience
Brain
Motor control
Contrast (music)
Wrist
Neurophysiology
Magnetic Resonance Imaging
Biomechanical Phenomena
Arm
Female
Nerve Net
Psychology
Neuroscience
Subjects
Details
- ISSN :
- 15461726 and 10976256
- Volume :
- 7
- Database :
- OpenAIRE
- Journal :
- Nature Neuroscience
- Accession number :
- edsair.doi.dedup.....bad225bc27f8d8cf44873277e6731481