Response time patterns associated with various display-control relationships.

Abstract
Two displays and two controls were combined in different ways to create six display-control systems. These six systems were then classified into three pairs, so that the informational characteristics and motor difficulty were equivalent from pair to pair. The experiment was designed to determine if; (a) the various systems would maintain their same relative efficiencies throughout a period of practice, and (b) a secondary task would have the same interfering effect on the operation of all systems. At the same time it was anticipated that a detailed analysis of the individual response-time data would provide some insight as to the nature of the coding used by Ss to transmit information from display to control. The results were as follows: 1.Efficiency of performance (measured in terms of mean response time per stimulus) on the various systems differed significantly. 2. The relative efficiency of the systems did not change throughout practice. 3. The progress of learning the perceptual-motor skills involved in operating the various systems differed significantly between the three pairs. 4. A secondary task had no significant effect on the performance of the most efficient systems; it had the greatest interfering effect on the performance of the least efficient systems. 5. Different patternings of S-R latencies were obtained from performance on the various systems.
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