Author: Robert S. Kennedy
Publisher:
ISBN:
Category : Vigilance (Psychology)
Languages : en
Pages : 24
Book Description
Four forms of a vigilance task were administered over four sessions in counterbalanced order to 16 subjects. Three of the tasks required auditory (1, 2, or 3 tones) and one required visual (3 lights) monitoring. Visual performance was superior to auditory performance which was a function of the number of channels monitored, and performance for the four sessions was asymptotic. Among the different scoring methods used, 'percent correct' had the most common variance. Decrements in performance appeared within 10 minutes in the one- and two-channel auditory tasks. An overall downward trend appeared in the three-channel visual task but was less regular. No systematic change in performance was apparent in the three-channel auditory task. Intratask correlations were high (> .75), while intertest correlations showed only a 20 per cent common variance. (Author).
A Sixty-minute Vigilance Task with 100 Scoreable Responses
Author: Robert S. Kennedy
Publisher:
ISBN:
Category : Vigilance (Psychology)
Languages : en
Pages : 24
Book Description
Four forms of a vigilance task were administered over four sessions in counterbalanced order to 16 subjects. Three of the tasks required auditory (1, 2, or 3 tones) and one required visual (3 lights) monitoring. Visual performance was superior to auditory performance which was a function of the number of channels monitored, and performance for the four sessions was asymptotic. Among the different scoring methods used, 'percent correct' had the most common variance. Decrements in performance appeared within 10 minutes in the one- and two-channel auditory tasks. An overall downward trend appeared in the three-channel visual task but was less regular. No systematic change in performance was apparent in the three-channel auditory task. Intratask correlations were high (> .75), while intertest correlations showed only a 20 per cent common variance. (Author).
Publisher:
ISBN:
Category : Vigilance (Psychology)
Languages : en
Pages : 24
Book Description
Four forms of a vigilance task were administered over four sessions in counterbalanced order to 16 subjects. Three of the tasks required auditory (1, 2, or 3 tones) and one required visual (3 lights) monitoring. Visual performance was superior to auditory performance which was a function of the number of channels monitored, and performance for the four sessions was asymptotic. Among the different scoring methods used, 'percent correct' had the most common variance. Decrements in performance appeared within 10 minutes in the one- and two-channel auditory tasks. An overall downward trend appeared in the three-channel visual task but was less regular. No systematic change in performance was apparent in the three-channel auditory task. Intratask correlations were high (> .75), while intertest correlations showed only a 20 per cent common variance. (Author).
A Sixty-minute Vigilance Task with 100 Scoreable Responses
Author: Robert S. Kennedy
Publisher:
ISBN:
Category :
Languages : en
Pages : 15
Book Description
Four forms of a vigilance task were administered over four sessions in counterbalanced order to 16 subjects. Three of the tasks required auditory (1, 2, or 3 tones) and one required visual (3 lights) monitoring. Visual performance was superior to auditory performance which was a function of the number of channels monitored, and performance for the four sessions was asymptotic. Among the different scoring methods used, 'percent correct' had the most common variance. Decrements in performance appeared within 10 minutes in the one- and two-channel auditory tasks. An overall downward trend appeared in the three-channel visual task but was less regular. No systematic change in performance was apparent in the three-channel auditory task. Intratask correlations were high (> .75), while intertest correlations showed only a 20 per cent common variance. (Author).
Publisher:
ISBN:
Category :
Languages : en
Pages : 15
Book Description
Four forms of a vigilance task were administered over four sessions in counterbalanced order to 16 subjects. Three of the tasks required auditory (1, 2, or 3 tones) and one required visual (3 lights) monitoring. Visual performance was superior to auditory performance which was a function of the number of channels monitored, and performance for the four sessions was asymptotic. Among the different scoring methods used, 'percent correct' had the most common variance. Decrements in performance appeared within 10 minutes in the one- and two-channel auditory tasks. An overall downward trend appeared in the three-channel visual task but was less regular. No systematic change in performance was apparent in the three-channel auditory task. Intratask correlations were high (> .75), while intertest correlations showed only a 20 per cent common variance. (Author).
Monthly Catalog of United States Government Publications
Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages :
Book Description
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages :
Book Description
Cumulated Index Medicus
Author:
Publisher:
ISBN:
Category : Medicine
Languages : en
Pages : 1290
Book Description
Publisher:
ISBN:
Category : Medicine
Languages : en
Pages : 1290
Book Description
DSH Abstracts
Author:
Publisher:
ISBN:
Category : Deafness
Languages : en
Pages : 534
Book Description
Publisher:
ISBN:
Category : Deafness
Languages : en
Pages : 534
Book Description
Monthly Catalog of United States Government Publications, Cumulative Index
Author: United States. Superintendent of Documents
Publisher:
ISBN:
Category : United States
Languages : en
Pages : 1504
Book Description
Publisher:
ISBN:
Category : United States
Languages : en
Pages : 1504
Book Description
Government Reports Annual Index
Author:
Publisher:
ISBN:
Category : Government reports announcements & index
Languages : en
Pages : 828
Book Description
Publisher:
ISBN:
Category : Government reports announcements & index
Languages : en
Pages : 828
Book Description
Scientific and Technical Aerospace Reports
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 642
Book Description
Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 642
Book Description
Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
U.S. Government Research and Development Reports Index
Author:
Publisher:
ISBN:
Category : Research
Languages : en
Pages : 826
Book Description
Publisher:
ISBN:
Category : Research
Languages : en
Pages : 826
Book Description
Government Reports Index
Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 864
Book Description
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 864
Book Description