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Biomedical subjects

I D Brown

Publications and source records attributed to I D Brown.

47 records · Page 3Linked to original sources
PubMed1971

Testing colour confusability among a new range of decimal stamps.

Two experiments are reported in which the objective was to achieve minimal confusability among 14 colours required for the new lower-value range of decimal stamps. The main conclusion is that aesthetic considerations are largely incompatible with the criteria required to meet this objective. A symmetrically structured range of seven bright hues, each used at two levels of saturation, was found to have some advantages over an alternative unsymmetrical range which included more pleasing colours. This was mainly because the latter included greater variation along the brightness dimension, which produced large errors in recognition of darker hues. It could also have resulted from the greater nameability of colours made possible by combining hue and saturation cues systematically. The findings emphasise that absolute confusability of colour displays cannot be assessed reliably by viewing stimuli side-by-side, because this does not involve the imperfect mechanisms employed in colour recognition.

Journal Article↗
PubMed1970

Ergonomics in action - 1: the medical research council applied psychology unit.

This paper traces the origins of the APU and sketches its development from its foundation in 1944 to the present day. Research in a large number of important areas is outlined, with reference to such areas of work as; environmental and task-induced stress, post office studies, tracking control skills, car driving, signal detection and monitoring; and the current research interests of present APU staff are briefly noted.

Journal Article↗