-transparent.png){kind=logo}
The influence of regularity of preparatory interval (PI) on simple reaction-time (RT) in elderly persons was studied in a sample of 25 women between 65 and 88 years of age. RTs to regular and variable PIs of 1, 3, 7, 9, and 13 seconds were compared using Steffy's embedded isotemporal blocks method. The advantage of PI regularity was lost at 13 sec, where performance was faster for irregular trials. The RT-PI functions were similar to those found by Botwinick and his associates who used Shakow's paradigm, even though overall RT was slower in this sample. The similarity of results across the two paradigms suggest that the point of RT function crossover is interval dependent and unrelated to response latency in elderly adults.
M E Strauss, and
A M Wagman, and
K A Quaid
January 1970,
Psychophysiology,
M E Strauss, and
A M Wagman, and
K A Quaid
November 2006,
Behavioural brain research,
M E Strauss, and
A M Wagman, and
K A Quaid
May 1969,
Journal of experimental psychology,
M E Strauss, and
A M Wagman, and
K A Quaid
February 1976,
Perceptual and motor skills,
M E Strauss, and
A M Wagman, and
K A Quaid
February 1995,
Journal of clinical and experimental neuropsychology,
M E Strauss, and
A M Wagman, and
K A Quaid
July 1965,
American journal of mental deficiency,
M E Strauss, and
A M Wagman, and
K A Quaid
July 1966,
Journal of experimental psychology,
M E Strauss, and
A M Wagman, and
K A Quaid
April 1976,
Journal of child psychology and psychiatry, and allied disciplines,
M E Strauss, and
A M Wagman, and
K A Quaid
December 1979,
Perceptual and motor skills,
M E Strauss, and
A M Wagman, and
K A Quaid
March 1973,
Child development,
