Accession Number:

ADA010740

Title:

Combination of Unreliable Evidence in a Probabilistic Visual Search and Detection Task,

Descriptive Note:

Corporate Author:

ROYAL NAVAL PERSONNEL RESEARCH COMMITTEE LONDON (ENGLAND)

Personal Author(s):

• Murrell,Graham A.
• Brand,Joan
• Hartley,Laurence R.
• Olsson,Robert G.

Report Date:

1973-07-01

Pagination or Media Count:

25.0

Abstract:

Observers watched a display screen to detect a target occurring in 0.1 of the display intervals, with or without the assistance of a simulated unreliable computer. The computers errors were independent of the random variability in the display, so that assisted subjects had in principle more information upon which to base judgments. Observers with assistance detected more targets than those without it, but also made more false alarm reports so that the benefit overall was slight.

Descriptors:

• *TARGET DETECTION
• *SONAR TARGETS
• SIGNAL PROCESSING
• PERFORMANCE TESTS
• PERFORMANCE(HUMAN)
• COMPUTER APPLICATIONS
• MAN MACHINE SYSTEMS
• SONAR SIGNALS
• SONAR PERSONNEL
• UNITED KINGDOM

Subject Categories:

• Acoustic Detection and Detectors
• Human Factors Engineering and Man Machine Systems

Distribution Statement:

APPROVED FOR PUBLIC RELEASE