Author: Robert S. Kennedy
Publisher:
ISBN:
Category : Vigilance (Psychology)
Languages : en
Pages : 24
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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).
Author: Robert S. Kennedy
Publisher:
ISBN:
Category :
Languages : en
Pages : 15
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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).
Author:
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ISBN:
Category : Government publications
Languages : en
Pages :
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Author:
Publisher:
ISBN:
Category : Medicine
Languages : en
Pages : 1290
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Author:
Publisher:
ISBN:
Category : Deafness
Languages : en
Pages : 534
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Author: United States. Superintendent of Documents
Publisher:
ISBN:
Category : United States
Languages : en
Pages : 1504
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Author:
Publisher:
ISBN:
Category : Government reports announcements & index
Languages : en
Pages : 828
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Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 642
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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.
Author:
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ISBN:
Category : Research
Languages : en
Pages : 826
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Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 864
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