TY - JOUR
T1 - Variation of isometric response force in the rat
AU - Slifkin, Andrew B.
AU - Mitchell, Suzanne H.
AU - Brener, Jasper
N1 - Funding Information:
This research was partly supported by National Institutes of Health grant ROI HL42366 and a Sigma Xi Grant-in-Aid of Research awarded, respectively, to Jasper Brener and Andrew B. Slifkin. We would like to thank William Guethlein for his programming assistance.Andrew B. Slifkin is now at the Department of Exercise and Sport Science, the Pennsylvania State University. Suzanne H. Mitchell is now at the Department of Psychology, the University of New Hampshire.
PY - 1995/12
Y1 - 1995/12
N2 - Hungry, unrestrained rats (N= 7) were rewarded for pressing a response beam in excess of 11 different force requirements. Changes in peak force production as a function of peak force requirement were examined by analyses of the first four moments of distributions of peak response forces: constant error, the within-subject standard deviation, skewness, and kurtosis. Results were similar to those previously obtained with human subjects: Constant error was positive at low and negative at high force requirements, the within-subject standard deviation increased as a negatively accelerating function of force requirement, and skewness and kurtosis were positive at low force requirements and decreased to negative values at the highest increments. Additional analyses of response kinetics indicated that rats, like humans, meet increasing force requirements by altering the rate of rise of force. The performance similarities suggest that common processes are engaged by the human and rat motor control systems to solve the problem of generating forces that are appropriate to the prevailing environmental constraints.
AB - Hungry, unrestrained rats (N= 7) were rewarded for pressing a response beam in excess of 11 different force requirements. Changes in peak force production as a function of peak force requirement were examined by analyses of the first four moments of distributions of peak response forces: constant error, the within-subject standard deviation, skewness, and kurtosis. Results were similar to those previously obtained with human subjects: Constant error was positive at low and negative at high force requirements, the within-subject standard deviation increased as a negatively accelerating function of force requirement, and skewness and kurtosis were positive at low force requirements and decreased to negative values at the highest increments. Additional analyses of response kinetics indicated that rats, like humans, meet increasing force requirements by altering the rate of rise of force. The performance similarities suggest that common processes are engaged by the human and rat motor control systems to solve the problem of generating forces that are appropriate to the prevailing environmental constraints.
KW - Isometric
KW - Kinetic
KW - Peak force
KW - Rats
KW - Variability
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U2 - 10.1080/00222895.1995.9941725
DO - 10.1080/00222895.1995.9941725
M3 - Article
AN - SCOPUS:0029618693
SN - 0022-2895
VL - 27
SP - 375
EP - 381
JO - Journal of motor behavior
JF - Journal of motor behavior
IS - 4
ER -