Latash & Anson's explanation of bradykinesia in patients with Parkinson's disease and cocontraction in dystonic patients is intriguing. However, the proposed adaptive changes in the central nervous system do not fit well with both clinical and experimental evidence of motor impairment in these patients. In particular, we question the explanation of: (1) the role of postural reactions and spatial accuracy in bradykinesia, (2) certain abnormalities during the execution of sequential and simultaneous movements, (3) the sudden changes in mobility (ON and OFF) of Parkinsonian patients, and (4) the meaning of reflex circuitry changes in dystonia.
Bradykinesia in Parkinson's disease and cocontraction activity in dystonia are unlikely to be due to adaptive changes in the CNS / Berardelli, A; Agostino, R; Curra', Antonio; Manfredi, M.. - In: BEHAVIORAL AND BRAIN SCIENCES. - ISSN 0140-525X. - STAMPA. - 19:(1996), pp. 69-69. [10.1017/S0140525X00041480]
Bradykinesia in Parkinson's disease and cocontraction activity in dystonia are unlikely to be due to adaptive changes in the CNS
CURRA', antonio;
1996
Abstract
Latash & Anson's explanation of bradykinesia in patients with Parkinson's disease and cocontraction in dystonic patients is intriguing. However, the proposed adaptive changes in the central nervous system do not fit well with both clinical and experimental evidence of motor impairment in these patients. In particular, we question the explanation of: (1) the role of postural reactions and spatial accuracy in bradykinesia, (2) certain abnormalities during the execution of sequential and simultaneous movements, (3) the sudden changes in mobility (ON and OFF) of Parkinsonian patients, and (4) the meaning of reflex circuitry changes in dystonia.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
