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Instituto Nacional de Neurología y Neurocirugía

2008, Número 2

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Arch Neurocien 2008; 13 (2)


Área motora suplementaria

Marín ME, Bramasco AA, Alonso VMA

Idioma: Español
Referencias bibliográficas: 38
Paginas: 118-124
Archivo PDF: 148.88 Kb.


RESUMEN

Justo en frente del área motora primaria de la corteza cerebral humana existe una representación suplementaria de los movimientos. Para denominar esta zona localizada rostral al área motora en la superficie medial superior del giro frontal, que constituye un complejo sistema anatómico-funcional para el inicio y control de la función motora y expresión verbal, que distinguirla del área motora primaria (AMP), Penfield y Welch acuñaron el término de “área motora suplementaria” (AMS). Aunque su función no se ha esclarecido con exactitud, en los últimos años se han estudiado las funciones específicas de esta área, gracias a una serie de estudios tanto experimentales como clínicos, con ayuda de nuevas técnicas de imagen y neurofisiología, incluyendo tomografía por emisión de positrones (PET) y resonancia magnética funcional (RMf). La importancia de conocer más sobre la funcionalidad y anatomía exacta de AMS estriba en los buenos resultados obtenidos con cirugía de epilepsia en pacientes con epilepsia de esta región cortical.


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