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Updated: Jul 17, 2026
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An Objective and Child-friendly Assessment of Arm Function by Using a 3-D Sensor
Published on: February 12, 2018
Codificación de la ubicación del brazo por visión.
M S Graziano1, D F Cooke, C S Taylor
1Department of Psychology, Princeton University, Princeton, NJ 08544, USA. graziano@princeton.edu
Science (New York, N.Y.)
|December 2, 2000
Resumen
Las neuronas en el cerebro de los primates.
Área de la Ciencia:
- La neurociencia es la neurociencia.
- Investigación del cerebro de los primates.
- El esquema corporal y la propriocepción.
Sus antecedentes:
- El área 5 en el lóbulo parietal está implicada en el monitoreo de la postura y el movimiento del cuerpo.
- Comprender las bases neuronales de la representación corporal es crucial para el control motor.
Objetivo del estudio:
- Para investigar cómo las neuronas en el área 5 del cerebro de los primates codifican la posición de las extremidades.
- Para determinar si estas neuronas integran información visual y somatosensorial para la conciencia corporal.
Principales métodos:
- Actividad neuronal registrada en el área 5 de monos.
- Monos presentados con su propio brazo oculto y un brazo falso realista.
- Respuestas probadas a sustitutos de brazos poco realistas y discriminación del brazo izquierdo/derecho.
Principales resultados:
- Las neuronas en el área 5 codificaban la posición del brazo incluso cuando el brazo no era visible.
- Estas neuronas respondieron a un falso brazo realista, pero no a sustitutos poco realistas.
- Las neuronas podían distinguir entre un brazo derecho e izquierdo.
Conclusiones:
- Las neuronas del área 5 integran las entradas visuales y somatosensoriales para monitorear la configuración de las extremidades.
- Estas neuronas contribuyen al esquema corporal esencial para el ajuste de la postura y la orientación del movimiento.
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