DocumentCode :
1847424
Title :
Formation of an Internal Model of Environment Dynamics During Upper Limb Reaching Movements: A Fuzzy Approach
Author :
MacDonald, C. ; Moussavi, Z. ; Sarkodie-Gyan, T.
Author_Institution :
Univ. of Texas at El Paso, El Paso
fYear :
2007
fDate :
22-26 Aug. 2007
Firstpage :
4862
Lastpage :
4865
Abstract :
This paper presents the development and simulation of a fuzzy logic based learning mechanism to emulate human motor learning. In particular, fuzzy inference was used to develop an internal model of a novel dynamic environment experienced during planar reaching movements with the upper limb. A dynamic model of the human arm was developed and a fuzzy if-then rule base was created to relate trajectory movement and velocity errors to internal model update parameters. An experimental simulation was performed to compare the fuzzy system´s performance with that of human subjects. It was found that the dynamic model behaved as expected, and the fuzzy learning mechanism created an internal model that was capable of opposing the environmental force field to regain a trajectory closely resembling the desired ideal.
Keywords :
biocontrol; brain; fuzzy logic; inference mechanisms; learning (artificial intelligence); mechanoception; medical computing; neurophysiology; dynamic environment; environmental force field; fuzzy inference; fuzzy logic based learning mechanism; human motor learning; internal model parameters; planar reaching movements; trajectory movement; upper limb reaching movements; velocity errors; Brain modeling; Error correction; Force feedback; Fuzzy control; Fuzzy systems; Humans; Learning systems; Predictive models; Robots; System performance; Arm; Fuzzy Logic; Humans; Kinetics; Learning; Models, Biological; Motor Activity; Motor Skills; Psychomotor Performance;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Engineering in Medicine and Biology Society, 2007. EMBS 2007. 29th Annual International Conference of the IEEE
Conference_Location :
Lyon
ISSN :
1557-170X
Print_ISBN :
978-1-4244-0787-3
Type :
conf
DOI :
10.1109/IEMBS.2007.4353429
Filename :
4353429
Link To Document :
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