The language of smell: Connecting linguistic and psychophysical properties of odor descriptors

Cognition
Georgios IatropoulosJonas K Olofsson

Abstract

The olfactory sense is a particularly challenging domain for cognitive science investigations of perception, memory, and language. Although many studies show that odors often are difficult to describe verbally, little is known about the associations between olfactory percepts and the words that describe them. Quantitative models of how odor experiences are described in natural language are therefore needed to understand how odors are perceived and communicated. In this study, we develop a computational method to characterize the olfaction-related semantic content of words in a large text corpus of internet sites in English. We introduce two new metrics: olfactory association index (OAI, how strongly a word is associated with olfaction) and olfactory specificity index (OSI, how specific a word is in its description of odors). We validate the OAI and OSI metrics using psychophysical datasets by showing that terms with high OAI have high ratings of perceived olfactory association and are used to describe highly familiar odors. In contrast, terms with high OSI have high inter-individual consistency in how they are applied to odors. Finally, we analyze Dravnieks's (1985) dataset of odor ratings in terms of OAI and OSI. This analysis...Continue Reading

Citations

Jun 25, 2019·Cognitive Neuropsychology·Laura J Speed, Asifa Majid
Nov 28, 2018·Nature Communications·E Darío GutiérrezGuillermo A Cecchi
Jun 14, 2020·Journal of Texture Studies·Robert Pellegrino, Curtis R Luckett
Dec 23, 2020·Trends in Cognitive Sciences·Asifa Majid
May 20, 2021·Chemical Senses·Robert PellegrinoCurtis R Luckett

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