scholarly journals Comparison of Tracking Task Performance and Nystagmus During Sinusoidal Oscillation in Yaw and Pitch

1970 ◽  
Author(s):  
Alan J. Benson ◽  
Jr Guedry ◽  
Fred E.
Ergonomics ◽  
1979 ◽  
Vol 22 (5) ◽  
pp. 549-555 ◽  
Author(s):  
SARAH A. NUNNELEY ◽  
PATRICK J. DOWD ◽  
LOREN G. MYHRE ◽  
RICHARD F. STRIBLEY ◽  
RICHARD C. MCNEE

1973 ◽  
Vol 36 (6) ◽  
pp. 974-995 ◽  
Author(s):  
V. B. Brooks ◽  
I. B. Kozlovskaya ◽  
A. Atkin ◽  
F. E. Horvath ◽  
M. Uno

Author(s):  
Harald Ewolds ◽  
Laura Broeker ◽  
Rita F. de Oliveira ◽  
Markus Raab ◽  
Stefan Künzell

Abstract This study examined the effect of instructions and feedback on the integration of two tasks. Task-integration of covarying tasks are thought to help dual-task performance. With complete task integration of covarying dual tasks, a dual task becomes more like a single task and dual-task costs should be reduced as it is no longer conceptualized as a dual task. In the current study we tried to manipulate the extent to which tasks are integrated. We covaried a tracking task with an auditory go/no-go task and tried to manipulate the extent of task-integration by using two different sets of instructions and feedback. A group receiving task-integration promoting instructions and feedback (N = 18) and a group receiving task-separation instructions and feedback (N = 20) trained on a continuous tracking task. The tracking task covaried with the auditory go/no-go reaction time task because high-pitch sounds always occurred 250 ms before turns, which has been demonstrated to foster task integration. The tracking task further contained a repeating segment to investigate implicit learning. Results showed that instructions, feedback, or participants’ conceptualization of performing a single task versus a dual task did not significantly affect task integration. However, the covariation manipulation improved performance in both the tracking and the go/no-go task, exceeding performance in non-covarying and single tasks. We concluded that task integration between covarying motor tasks is a robust phenomenon that is not influenced by instructions or feedback.


1979 ◽  
Vol 23 (1) ◽  
pp. 422-426
Author(s):  
George D. Ogden ◽  
Nancy S. Anderson ◽  
Angela M. Rieck

The present study was designed to compare single-task and dual-task measures of S-R compatibility. A numeral-motor choice-reaction task was performed alone and with a secondary tracking task. The level of compatibility was varied by manipulating the S-R assignments in the choice-reaction task. Results of the single-task trials indicated that reaction time was significantly slower for the incompatible conditions. Reaction time was slower, more errors were made, and fewer problems were attempted in the incompatible dual-task trials. Despite instructions to maintain choice-reaction performance at single-task levels, incompatible task performance was significantly degraded in the dual-task setting. Results indicated that resistance to task-induced stress may be a major indicant of the level of compatibility.


Author(s):  
Judy Edworthy ◽  
Elizabeth Hellier ◽  
Kathryn Walters ◽  
Ben Weedon ◽  
Austin Adams

Two experiments are described in which participants were required to respond to auditory warnings known to vary in their perceived urgency. In the first, they simply responded to a warning of high, medium or low urgency whilst performing a simultaneous tracking task. Responses to the high urgency warning were faster than to the others. In the second experiment participants carried out an addition task on hearing the warning, and the warnings were either matched or mismatched to the difficulty of the task. Results show that responses to the most urgent warnings were again faster, and also that the degree of mismatching between warning and task degraded performance in some conditions.


1988 ◽  
Vol 32 (19) ◽  
pp. 1395-1399 ◽  
Author(s):  
Sarah Swierenga Osgood ◽  
Kenneth R. Boff ◽  
Rebecca S. Donovan

The present study examined the advantage of Rapid Communication (RAP-COM) Display Technology over conventional spatially arrayed displays in the context of secondary task demands. This research represents an early step in assessing the use of RAP-COM display techniques in multi-task environments. Eight subjects were instructed to respond to briefly presented visual stimuli, while concurrently performing an unstable tracking task at two levels of difficulty. Duration thresholds, obtained using a moment-to-moment adaptive tracking performance procedure, were collected for RAP-COM and spatially arrayed displays while RMS error scores were collected from the unstable tracking task performance. Information transfer rates for the RAP-COM technique were faster than for the spatially distributed array under both the single and dual task conditions. Regardless of secondary tracking task difficulty, subjects were able to maintain primary task performance levels on RAP-COM and spatial display tasks, although a decrement in tracking performance was seen.


1985 ◽  
Vol 61 (3_suppl) ◽  
pp. 1091-1105 ◽  
Author(s):  
Loretta B. Marincola ◽  
Gerald M. Long

Differences in dual-task performance by field-dependent and field-independent college students were investigated. The perceptual styles of the 102 subjects were determined by their performance on the Rod-and-Frame Test. Dual-task performance required the subjects to perform concurrently a central tracking task and a peripheral light-detection task. The effect of stress on dual-task performance was examined by employing three widely differing levels of tracking task difficulty. Three sets of instructions varied the relative importance of the two tasks within the dual-task situation. Both manipulation of task difficulty and instructional set had powerful effects on performance. However, performance differences among subjects with differing perceptual styles were found only on the central tracking task, with field-independent subjects consistently outperforming field-dependent ones. The results are discussed in terms of the theoretical basis for the perceptual style of field-dependence/field-independence as well as the potential value of this dimension in dual-task situations.


Sign in / Sign up

Export Citation Format

Share Document