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Titolo:
Improving odour detection by assessors
Autore:
MacRae, AW; Farrimond, M; Hodsoll, J; Falahee, M; Simms, J; Hopper, R;
Indirizzi:
Univ Birmingham, Sch Psychol, Birmingham B15 2TT, W Midlands, England UnivBirmingham Birmingham W Midlands England B15 2TT W Midlands, England Severn Trent Water, Birmingham B26 3PU, W Midlands, England Severn Trent Water Birmingham W Midlands England B26 3PU idlands, England
Titolo Testata:
WATER SCIENCE AND TECHNOLOGY
fascicolo: 6, volume: 40, anno: 1999,
pagine: 149 - 152
SICI:
0273-1223(1999)40:6<149:IODBA>2.0.ZU;2-E
Fonte:
ISI
Lingua:
ENG
Keywords:
geosmin; propane thiol; sensory analysis; sensory thresholds; signal-detection theory; xylene;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
4
Recensione:
Indirizzi per estratti:
Indirizzo: MacRae, AW Univ Birmingham, Sch Psychol, Birmingham B15 2TT, W Midlands, England Univ Birmingham Birmingham W Midlands England B15 2TT England
Citazione:
A.W. MacRae et al., "Improving odour detection by assessors", WATER SCI T, 40(6), 1999, pp. 149-152

Abstract

In a test of theoretical predictions made by MacRae and Falahee (1995), trained assessors evaluated water samples which sometimes contained 10(-5) mg/l of trichloroanisole, using three different procedures. Compared with theblue-book method of single-sample assessment, providing a reference sampleidentified to the assessor as being odour-free increased the proportion ofresponses reporting an odour. This decreased the number of odorous samplesmissed. Although this outcome may be valuable in itself, discrimination between odorous and odour-free samples was not really enhanced since 'false alarms' increased correspondingly. Incorporating additional, different odours into the sequence of samples and giving knowledge of results when these were judged, dramatically improved performance - the rates both of missing trichloroanisole and of mistakenly attributing odour to odour-free samples were halved. (C) 1999 Published by Elsevier Science Ltd on behalf of the IAWQ. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 13/08/20 alle ore 14:38:58