Choice Reaction Time As a Function of Stimulus Uncertainty, Response Uncertainty, and Behavioral Hypotheses.

1967 ◽  
Vol 74 (4, Pt.1) ◽  
pp. 517-524 ◽  
Author(s):  
Ira H. Bernstein ◽  
Donald L. Schurman ◽  
Gene Forester
Keyword(s):  
Reaction Time ◽  
Choice Reaction Time ◽  
Response Uncertainty ◽  
Stimulus Uncertainty

Choice Reaction Time as a Function of Stimulus Uncertainty in Patients with Brain Lesions

1965 ◽  
Vol 21 (3) ◽  
pp. 885-886
Author(s):  
Louis D. Costa ◽  
Morton Horwitz ◽  
Herbert G. Vaughan
Keyword(s):  
Reaction Time ◽  
Choice Reaction Time ◽  
Brain Lesions ◽  
Sorting Task ◽  
Card Sorting ◽  
Stimulus Information ◽  
Stimulus Uncertainty ◽  
Card Sorting Task

Longer times and greater variabilities for 24 brain-damaged Ss than for normals were associated with increased stimulus information in a card-sorting task.

Does stimulus uncertainty or response uncertainty produce the Hick/Hyman law?

2010 ◽  
Author(s):  
Richard E. Hazeltine ◽  
Timothy Wifall ◽  
J. Toby Mordkoff
Keyword(s):  
Response Uncertainty ◽  
Stimulus Uncertainty

Analysis of Task Difficulty under Varying Conditions of Induced Stress

1970 ◽  
Vol 31 (2) ◽  
pp. 343-348 ◽  
Author(s):  
Jerry W. Thornton ◽  
Paul D. Jacobs
Keyword(s):  
Reaction Time ◽  
Choice Reaction Time ◽  
Reaction Time Task ◽  
Simple Reaction Time Task ◽  
Simple Task ◽  
Practical Applications ◽  
Time Task ◽  
Significant Difference ◽  
Task Relatedness ◽  
Related Stress

Two tasks (simple and choice reaction time) were examined while varying three types of stressors (shock, threat of shock, and noise) and the stressor task relationship (i.e., task-related stress, task-unrelated stress, and no-stress). Four specific hypotheses were tested and 3 were supported in the simple reaction-time task. There were no significant differences among stressors for either task, although greater differences were reported in the simple than in the choice reaction-time task. A significant difference between the “task-relatedness” of stress levels in the simple task was interpreted as possibly due to a “coping” or “protective adaptive mechanism” in which increases in performance serve to reduce stress. Practical applications were examined.

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