Is one motor cortex enough for two hands?
Dev Med Child Neurol
; 57(10): 977-80, 2015 Oct.
Article
em En
| MEDLINE
| ID: mdl-26104046
ABSTRACT
We report on a patient with mirror movements sustained by a mono-hemispheric fast control of bilateral hand muscles and normal hand function. Transcranial magnetic stimulation of the right motor cortex evoked contractions of muscles in both hands while no responses were observed from the left hemisphere. Somatosensory-evoked potentials, functional magnetic resonance, and diffusion tractography showed evidence of sensorimotor dissociation and asymmetry of corticospinal projections, suggestive of reorganization after early unilateral left brain lesion. This is the first evidence that, in certain rare conditions, good hand function is possible with ipsilateral corticospinal reorganization, supporting the role of unexplored mechanisms of motor recovery.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Mãos
/
Atividade Motora
/
Córtex Motor
Tipo de estudo:
Etiology_studies
Limite:
Adolescent
/
Humans
/
Male
Idioma:
En
Ano de publicação:
2015
Tipo de documento:
Article