THE EFFECTS OF DEGREE OF OVERLAP OF MUSCLE
NEURONAL REPRESENTATIONS IN THE CORTEX ON
REACTION TIME

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SHOJAII M.; VAEZ MOUSAVI S.M.K.

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Journal: OLYMPIC Year:2004 | Volume:12 | Issue:1 (SERIAL 25) Page(s): 17-30

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Title

THE EFFECTS OF DEGREE OF OVERLAP OF MUSCLE NEURONAL REPRESENTATIONS IN THE CORTEX ON REACTION TIME

Author(s)

SHOJAII M. | VAEZ MOUSAVI S.M.K. | Issue Writer Certificate

Keywords

CORTICAL CELL ASSEMBLY THEORYQ4

FORCE PRODUCTION TASKQ4

MOTOR PREPARATIONQ4

MOVEMENT PARAMETERSQ3

MUSCLE REPRESENTATIONSQ4

PARAMETER PRECUING TECHNIQUEQ3

REACTION TIMEQ4

Abstract

Motor programming process is one of the issues that has not been defined exactly yet and still there exist more question on it. The results of studies done on by parameter precuing technique have shown the relationship between REACTION TIME (RT) and number and nature of precued parameters, but there exist some different explanation on the cause of the effect of different precued parameters on RT.The present research was performed in order to test the hypothesis that RT is a function of degree of the overlap of muscle neuronal representations in motor cortex of brain. A mixed 3 factional design was performed on 16 (8 male & 8 female) volunteer, non-athletes, right-handed students ranging in age from 20 to 25. Using "parameter precueing apparatus", subjects performed a total of 2400 trials over 5 session on successive days (4 blocks of 120 trials blocks per session) under different conditions of precueing. The task required production of defined isometric force (3 or 6 kg) toward inside or outside, with right or left upper limb as quickly and accurately as possible after displaying precue followed by stimulus. The subjectsRT in different levels of independent variable were analyzed by using a 3 factor design (degree of overlap* gender* session) with repeated measures on 2 of the factors (degree of overlap & session). The results indicated that RT in this task was a function of degree of overlap of muscle representations in the motor cortex (p < . 05).These results are consistent with the cortical cell assembly theory of motor programming (Wickens, et al. , 1994). The effect of gender on RT was not significant (p> .05); but interaction of degree of overlap and gender, and main effect of session was not significant (p < . 05).The resultsare discussedin relationto the CORTICAL CELL ASSEMBLY THEORY

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APA: Copy

SHOJAII, M., & VAEZ MOUSAVI, S.M.K.. (2004). THE EFFECTS OF DEGREE OF OVERLAP OF MUSCLE NEURONAL REPRESENTATIONS IN THE CORTEX ON REACTION TIME. OLYMPIC, 12(1 (SERIAL 25)), 17-30. SID. https://sid.ir/paper/37753/en

Vancouver: Copy

SHOJAII M., VAEZ MOUSAVI S.M.K.. THE EFFECTS OF DEGREE OF OVERLAP OF MUSCLE NEURONAL REPRESENTATIONS IN THE CORTEX ON REACTION TIME. OLYMPIC[Internet]. 2004;12(1 (SERIAL 25)):17-30. Available from: https://sid.ir/paper/37753/en

IEEE: Copy

M. SHOJAII, and S.M.K. VAEZ MOUSAVI, “THE EFFECTS OF DEGREE OF OVERLAP OF MUSCLE NEURONAL REPRESENTATIONS IN THE CORTEX ON REACTION TIME,” OLYMPIC, vol. 12, no. 1 (SERIAL 25), pp. 17–30, 2004, [Online]. Available: https://sid.ir/paper/37753/en

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