A systematic review of physiological responses to odours with a focus on current methods used in event-related study designs

In odour research, there is still a lack of knowledge regarding the detailed understanding of the determinants and the magnitude of an odour's impact on human psychophysiology. Therefore, the present review aims to summarize current evidence on psychophysiological responses to olfactory events, to highlight diversity in research methods, and to provide recommendations for further research. Predefined search items were used for literature research in two databases, focussing on recent investigations of cardiac and electrodermal responses to short (