Measuring individual corrective reaction time using the intermittent illumination model

Abstract

This study reports the corrective reaction time (tcr) of individuals using a novel methodology. The estimated tcr ranged from 87 to 441 ms, helping model hand control movements, such as aiming and tracking. The methodology can be continuously applied to study tcr under conditions with various performers and movements.

Servo-Gaussian Model to Predict Success Rates in Manual Tracking

“…These formulations indicate that the endpoint variabilities increase as the operator aims for a farther position in a submovement. Because the hand tremor constants tend to be small [41,44,53,69], these models are consistent with reports on the relationship being linear [4,23,53]:…”

“…Also, we assume that the corrective reaction time and the system's latency are almost constant, which yields T sampling as constant. Yet, the former varies within/between users [41], and the latter has variability [10]. The steering law assumes that the speed is constant for a fixed W , but this is empirically not true [55,67].…”

“…Note that these reports are based on a mean result by a pool of participants. Lin and Hsu conducted circular steering tasks and reported that the corrective reaction times by each participant ranged from 0.087 to 0.441 sec with the mean of 0.273 sec [41]. Thus, using the corrective reaction time as a constant (such as 0.26 sec) is a reasonable approximation for performance modeling.…”

“…Replacing D in Equation 8 with Equation 7, we have V = eW /T sampling . Assuming that T sampling is mostly constant with one person [41], Drury derived the "V = aW " form of the steering law (Equation 1). Then, MT is defined as the distance divided by the speed (MT = A/V = A/[aW ]), which is equivalent to Equation 2 with no intercept.…”

Bimanual and Unimanual Convergent Goal-Directed Movement Times

“…Even though the movements could have been made ballistically at this value of ID, the movement times are long (300-50 ms), so it is likely that some ongoing visual control was used in making the movement. The movement times are generally longer than normally associated with movements at this ID and would have allowed ongoing visual control (Carlton, 1992;Elliott & Allard, 1985;Lin & Hsu, 2014). Lin and Hsu, in the most detailed data available, found very large intra-and interparticipant variation in corrective reaction times with values ranging from 41 to 597 ms with mean values of 238 ms for men and 322 ms for women.…”