Peripheral Acuity and Photointerpretation Performance

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Abstract
Previous laboratory studies have shown a relationship between measures of peripheral acuity and performance in searching for artificial targets. In the present study, these findings were extended to the case of real targets in aerial photography using trained image interpreters. Correlations between field size and search performance ranged from 0.619 to 0.920. Significant increases in field size resulted from repeated testing but not, on an overall basis, from training. A measure of peripheral field size appears to provide a useful selection tool; the benefits of field expansion training remain somewhat in question.

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