期刊
JOURNAL OF MOTOR BEHAVIOR
卷 40, 期 5, 页码 446-475出版社
ROUTLEDGE JOURNALS, TAYLOR & FRANCIS LTD
DOI: 10.3200/JMBR.40.5.446-476
关键词
biomechanics; control; grasping; prehension
资金
- National Institutes of Health. USA [AR-048563, AG-018751, NS-35032]
- NATIONAL INSTITUTE OF ARTHRITIS AND MUSCULOSKELETAL AND SKIN DISEASES [R01AR048563] Funding Source: NIH RePORTER
- NATIONAL INSTITUTE OF NEUROLOGICAL DISORDERS AND STROKE [R01NS035032] Funding Source: NIH RePORTER
- NATIONAL INSTITUTE ON AGING [R01AG018751] Funding Source: NIH RePORTER
The authors review the available experimental evidencc oil what people do when they grasp an object with several digits and then manipulate it. The article includes three parts, each addressing a specific aspect of multifinger prehension. In the first parts the authors discuss manipulation forces (i.e., the resultant force and moment of force exerted oil the object) and the digits' contribution 10 Such forces' production. The second part deals with internal forces defined as forces that cancel each other and do not disturb Object equilibrium. The authors discuss the role of the internal forces in maintaining the object stability, with respect to Such issues as slip prevention. tilt prevention, and resistance to perturbations. The third part is devoted to the motor Control of prehension. It covers such topics as prehension synergies. chain effects, the principle of superposition, interfinger connection matrices and reconstruction of neural commands, mechanical advantage of the fingers, and the simultaneous digit adjustment to several mutually reinforcing or conflicting demands.
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