Target detectability as a function of target speed, noise level, and location

Abstract

An experiment was conducted using a PPI radar display on which 40 Ss observed targets displayed in each of 4 contiguous 30-degree scope sectors at each of 4 radial velocities under 2 levels of visual noise. Analysis of variance of the mixed Latin-square design did not reveal reliable differences in scores due to velocity, noise level, or velocity orders. More target designations occurred for the inner than the outer contiguous scope sectors (p = .001), although the ratios of correct to total calls per sector were not different (p > .05). These results were interpreted as being due to differences in scan frequency rather than reinforcement frequency. From Psyc Abstracts 36:05:5LK26B. (PsycInfo Database Record (c) 2025 APA, all rights reserved)