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By Geoffrey R. Hammond

Mentioned during this e-book is the organization among speech and events, specially these of the popular hand. either are expert motor actions that seem to rely on an identical neural association that's on hand within the left hemisphere of the mind. the character of this organization of the cerebral keep an eye on of speech and expert handbook functionality is mentioned in 4 sections: 1. Motor keep watch over and speech examines speech as a motor task; 2. Language and gesture examines the correspondence among spoken language and handbook gesture; three. Motor functionality and aphasia examines the motor impairments linked to aphasias; four. Interactions of speech and guide functionality examines the interactions that take place among concurrent verbal and handbook actions.

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Additional resources for Cerebral Control of Speech and Limb Movements

Example text

As a result, muscle torques and joint stiffness increase but the equilibrium position remains unchanged. ) The reciprocal command (%) shifts the two characteristics in the same direction (2D). Consequently, the equilibrium position changes but the level of co-activation and joint stiffness in the new equilibrium position remains the same.

However, this parameter may be under central control via gamma dynamic and beta MNs. Muscle lengths and threshold lengths In the arm model, we have made the simplifying assumptions that muscle moment arms (ai) are constant and that muscle length varies linearly with joint angle(s). , biceps brachii, brachialis and brachioradialis) vary by a factor of approximately two over the working range of the joint (An, Hui, Morrey, Linscheid, & Chao, 1982; van Zuylen, van Velzen, & Denier van der Gon, 1988).

R. (1989). Human jaw movement in mastication and speech. Archives of Oral Biology, 34,685-693. G. (1985). Control of rate and duration of speech movements. Journal of the Acoustical Society of America, 77,640-648. E. (1988). Analytic approaches to the study of outputs from central pattern generators. H. Cohen, S. Rossignol, & S. ), Neural control of rhythmic movements in vertebrates (pp. 455-486). New York Wiley. H. (1968). Neural coding. Neurosciences Research Program Bulletin, 6,223-344. S. (1969).

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