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Journal Article

Citation

De Smet D, Van Speybroeck L, Verplaetse J. Ann. Hum. Biol. 2012; 39(1): 1-10.

Affiliation

Department of Legal Theory and Legal History, Ghent University , Ghent , Belgium.

Copyright

(Copyright © 2012, Informa - Taylor and Francis Group)

DOI

10.3109/03014460.2011.629681

PMID

22092191

Abstract

Background: Research indicating the effects of real blood or of its iconic representation on human behaviour has thus far concentrated on phobia and aggressiveness. Little is known about other responses or, more fundamentally, about the biological basis of all such responses. Aim: In this study it is examined whether or not humans are able to detect real blood. Methods: Human subjects (n = 89) were asked to distinguish different kinds of blood from red control fluids under varying visual and choice conditions. Relevant differences between subjects were tested for through written questionnaires, including standardized scales for disgust sensitivity (DS-R) and blood phobia (MBPI) and performance on two clinical olfactory tests. Results: Analysis of variance shows that humans are excellent detectors of animal blood (in casu pig blood), whereas the ability of detecting human blood is much less developed. Surprisingly, differences in olfactory capacities and personal experience with blood have no effect on blood detection, while blood fear lowers and disgust sensitivity ameliorates this performance. Conclusion: This study allows further mapping of the exact role of disgust sensitivity in human behaviour, as well as a deliberate choice of materials in blood-related experiments. It is imperative for further research on the behavioural and psychological impact 'blood' resorts on humans.


Language: en

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