Although anthropologists frequently report the centrality of odours in the daily lives and cultural beliefs of many small-scale communities, Western scholars have historically considered the sense of smell as minimally involved in human communication. Here, we suggest that the origin and persistence of this latter view might be a consequence of the fact that most research is conducted on participants from Western societies who, collectively, were rather old (adults), deodorized and desensitized (ODD) to various aspects of olfactory perception. The view is rapidly changing, however, and this themed issue provides a timely overview of the current state-of-the-art on human chemocommunication. Based on evolutionary models of communication, the papers cover both general mechanisms of odour production by 'senders' and odour perception by 'receivers'. Focus on specific functional contexts includes reciprocal impact of odours between infants and mothers, the role of odour in mate choice and how odours communicate emotion and disease. Finally, a position paper outlines pitfalls and opportunities for the future, against the context of the replication crisis in psychology. We believe a more nuanced view of human chemical communication is within our grasp if we can continue to develop inter-disciplinary insights and expand research activities beyond ODD people. This article is part of the Theo Murphy meeting issue 'Olfactory communication in humans'.

Developmental Ethology and Cognitive Psychology Laboratory Centre for Taste Smell and Feeding Behaviour Science UMR 6265 CNRS Université de Bourgogne Inra AgroSup Dijon France

Division of Psychology University of Stirling Stirling FK9 4LA UK

Faculty of Science Charles University Viničná 7 128 42 Prague 2 Czech Republic

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Šebesta P, Třebický V, Fialová J, Havlíček J. 2019. Roar of a champion: loudness and voice pitch predict perceived fighting ability but not success in MMA fighters. Front. Psychol. 10, 859 (10.3389/fpsyg.2019.00859) PubMed DOI PMC

Pisano MD, Wall SM, Foster A. 1986. Perceptions of nonreciprocal touch in romantic relationships. J. Nonverbal Behav. 10, 29–40. (10.1007/BF00987203) DOI

Le Guérer A. 1992. Scent: the mysterious and essential powers of smell. London, UK: Random House.

Jaquet C. 2010. Philosophie de l'odorat. Paris, France: Presses Universitaires de France.

Schaal B, Porter RH. 1991. Microsmatic humans revisited: the generation and perception of chemical signals. Adv. Stud. Behav. 20, 135–200. (10.1016/S0065-3454(08)60321-6) DOI

McGann JP. 2017. Poor human olfaction is a 19th-century myth. Science 356, eaam7263 (10.1126/science.aam7263) PubMed DOI PMC

Broca P. 1879. Recherches sur les centres olfactifs. Revue d'Anthropologie, 2ème série, tome II, 385–455.

Turner W. 1890. The convolutions of the brain: a study in comparative anatomy. J Anat. Physiol. 25, 105–153. PubMed PMC

Jones S, Martin R, Pilbeam D. 1992. The Cambridge encyclopedia of human evolution. Cambridge, UK: Cambridge University Press.

Darwin C. 1898. The descent of man and selection in relation to sex. New York, NY: D. Appleton.

Freud S. 1949. Three essays on the theory of sexuality. London, UK: Imago Publishing.

Rouquier S, Blancher A, Giorgi D. 2000. The olfactory receptor gene repertoire in primates and mouse: evidence for reduction of the functional fraction in primates. Proc. Natl Acad. Sci. USA 97, 2870–2874. (10.1073/pnas.040580197) PubMed DOI PMC

Gilad Y, Man O, Pääbo S, Lancet D. 2003. Human specific loss of olfactory receptor genes. Proc. Natl Acad. Sci. USA 100, 3324–3327. (10.1073/pnas.0535697100) PubMed DOI PMC

Shepherd GM. 2006. Smell images and the flavour system in the human brain. Nature 444, 316–321. (10.1038/nature0540) PubMed DOI

Keverne EB. 1983. Chemical communication in primate reproduction. In Pheromones and reproduction in mammals (ed. Vandenbergh JG.), pp. 79–92. New York, NY: Academic Press.

Smith TD, Laitman JT, Bhatnagar KP. 2014. The shrinking anthropoid nose, the human vomeronasal organ, and the language of anatomical reduction. Anat. Rec. 297, 2196–2204. (10.1002/ar.23035) PubMed DOI

Maresh A, Rodriguez Gil D, Whitman MC, Greer CA. 2008. Principles of glomerular organization in the human olfactory bulb–implications for odor processing. PLoS ONE 3, e2640 (10.1371/journal.pone.0002640) PubMed DOI PMC

Laska M. 2017. Human and animal olfactory capabilities compared. In Springer handbook of odor (ed. Buettner A.), pp. 81–82. Cham, Switzerland: Springer.

Porter J, Craven B, Khan RM, Chang SJ, Kang I, Judkewicz B, Volpe J, Settles G, Sobel N. 2007. Mechanisms of scent-tracking in humans. Nat. Neurosci. 10, 27–29. (10.1038/nn1819) PubMed DOI

Becher PG, Lebreton S, Wallin EA, Hedenström E, Borrero F, Bengtsson M, Joerger V, Witzgall P. 2018. The scent of the fly. J. Chem. Ecol. 44, 431–435. (10.1007/s10886-018-0950-4) PubMed DOI

Shepherd GM. 2004. The human sense of smell: are we better than we think? PLoS Biol. 2, e146 (10.1371/journal.pbio.0020146) PubMed DOI PMC

Wrangham R. 2009. Catching fire. How cooking made us human. New York, NY: Basic Books.

Havlíček J, Roberts SC. 2013. The perfume-body odour complex: an insightful model for culture–gene coevolution? In Chemical signals in vertebrates 12 (eds East ML, Dehnard M), pp. 185–195. New York, NY: Springer.

Bastir M, et al. 2011. Evolution of the base of the brain in highly encephalized human species. Nat. Commun. 2, 588 (10.1038/Ncomms1593) PubMed DOI

Leroi-Gourhan A. 1975. The flowers found with Shanidar IV, a Neanderthal burial in Iraq. Science 190, 562–564. (10.1126/science.190.4214.562) DOI

Drea CM. 2020. Design, delivery and perception of condition-dependent chemical signals in strepsirrhine primates: implications for human olfactory communication. Phil. Trans. R. Soc. B 375, 20190264 (10.1098/rstb.2019.0264) PubMed DOI PMC

Henrich J, Heine SJ, Norenzayan A. 2010. The weirdest people in the world? Behav. Brain Sci. 33, 61–83. (10.1017/S0140525X0999152X) PubMed DOI

Segall MH, Campbell DT, Herskovits MJ. 1966. The influence of culture on visual perception. Indianapolis, IN: Bobbs-Merrill.

Sorokowska A, Sorokowski P, Hummel T, Huanca T. 2013. Olfaction and environment: Tsimane' of Bolivian rainforest have lower threshold of odor detection than industrialized German people. PLoS ONE 8, e69203 (10.1371/journal.pone.0069203) PubMed DOI PMC

Sorokowska A, Sorokowski P, Frackowiak T. 2015. Determinants of human olfactory performance: a cross-cultural study. Sci. Total Environ . 506–507, 196–200. (10.1016/j.scitotenv.2014.11.027) PubMed DOI

Majid A, Burenhult N. 2014. Odors are expressible in language, as long as you speak the right language. Cognition 130, 266–270. (10.1016/j.cognition.2013.11.004) PubMed DOI

Classen C. 1992. The odor of the other: olfactory symbolism and cultural categories. Ethos 20, 133–166. (10.1525/eth.1992.20.2.02a00010) DOI

Corbin A. 1986. The foul and the fragrant: odor and the French social imagination. Cambridge, MA: Harvard University Press.

Classen C. 2002. The colour of angels: cosmology, gender and the aesthetic imagination. London, UK: Routledge.

Brant C. 2004. Fume and perfume: some eighteenth-century uses of smell. J. Brit. Stud. 43, 444–463. (10.1086/421927) DOI

Almagor U. 1987. The cycle and stagnation of smells: pastoralists-fishermen relationships in an East African society. RES: Anthropol. Aesth. 13, 106–121. (10.1086/RESv13n1ms20166765) DOI

Pandya V. 1990. Movement and space: Andamanese cartography. Am. Ethnol. 17, 775–797. (10.1525/ae.1990.17.4.02a00100) DOI

Classen C, Howes D, Synnott A. 1994. Aroma—the cultural history of smell. London, UK: Routledge.

Majid A, Kruspe N. 2018. Hunter-gatherer olfaction is special. Curr. Biol. 28, 409–413.e402. (10.1016/j.cub.2017.12.014) PubMed DOI

Havlíček J, Winternitz J, Roberts SC. 2020. Major histocompatibility complex-associated odour preferences and human mate choice: near and far horizons. Phil. Trans. R. Soc. B 375, 20190260 (10.1098/rstb.2019.0260) PubMed DOI PMC

Kamiya T, O'dwyer K, Westerdahl H, Senior A, Nakagawa S. 2014. A quantitative review of MHC-based mating preference: the role of diversity and dissimilarity. Mol. Ecol. 23, 5151–5163. (10.1111/mec.12934) PubMed DOI

Candau J. 2000. Mémoire et expériences olfactives. Anthropologie d'un savoir-faire sensoriel. Paris, France: Presses Universitaires de France.

Wathelet O. 2012. Le doudou de ma fille, ça pue tellement bon!’: intimité familiale et jugements olfactifs. Anthropol. Soc. 36, 205–222. (10.7202/1014173ar) DOI

Havlicek J, Saxton TK, Roberts SC, Jozifkova E, Lhota S, Valentova J, Flegr J. 2008. He sees, she smells? Male and female reports on sensory reliance in mate choice and non-mate choice contexts. Pers. Indiv. Differ. 45, 564–569. (10.1016/j.paid.2008.06.019) DOI

Schaal B, Saxton TK, Loos H, Soussignan R, Durand K. 2020. Olfaction scaffolds the developing human from neonate to adolescent and beyond. Phil. Trans. R. Soc. B 375, 20190261 (10.1098/rstb.2019.0261) PubMed DOI PMC

Schaal B, Marlier L, Soussignan R. 2000. Human foetuses learn odours from their pregnant mother's diet. Chem. Senses 25, 729–737. (10.1093/chemse/25.6.729) PubMed DOI

Mennella JA, Jagnow CP, Beauchamp GK. 2001. Prenatal and postnatal flavor learning by human infants. Pediatrics 107, e88 (10.1542/peds.107.6.e88) PubMed DOI PMC

Wyatt TD. 2015. The search for human pheromones: the lost decades and the necessity of returning to first principles. Proc. R. Soc. B 282, 20142994.. (10.1098/rspb.2014.2994) PubMed DOI PMC

Schaal B, Coureaud G, Langlois D, Ginies C, Semon E, Perrier G. 2003. Chemical and behavioural characterisation of the rabbit mammary pheromone. Nature 424, 68–72. (10.1038/nature01739) PubMed DOI

Schaal B, Al Aïn S. 2014. Chemical signals ‘selected for’ newborns in mammals. Anim. Behav. 97, 289–299. (10.1016/j.anbehav.2014.08.022) DOI

Stoddart M. 1990. The scented ape. Cambridge, UK: Cambridge University Press.

Tiggemann M, Hodgson S. 2008. The hairlessness norm extended: reasons for and predictors of women's body hair removal at different body sites. Sex Roles 59, 889–897. (10.1007/s11199-008-9494-3) DOI

Roberts SC, Miner EJ, Shackelford TK. 2010. The future of an applied evolutionary psychology for human partnerships. Rev. Gen. Psychol. 14, 318–329. (10.1037/a0021253) DOI

Stevenson RJ, Repacholi BM. 2005. Does the source of an interpersonal odour affect disgust? A disease risk model and its alternatives. Eur. J. Soc. Psychol. 35, 375–401. (10.1002/ejsp.263) DOI

Lundström JN, Mathe A, Schaal B, Frasnelli J, Nitzsche K, Gerber J, Hummel T. 2013. Maternal status regulates cortical responses to the body odor of newborns. Front. Psychol. 4, 597 (10.3389/fpsyg.2013.00597) PubMed DOI PMC

Schaal B, Montagner H, Hertling E, Bolzoni D, Moyse A, Quichon R. 1980. Olfactory stimulations in mother–child relations. Reprod. Nutr. Dev. 20, 843–858. (10.1051/rnd:19800510) PubMed DOI

Porter RH, Winberg J. 1999. Unique salience of maternal breast odors for newborn infants. Neurosci. Biobehav. Rev. 23, 439–449. (10.1016/s0149-7634(98)00044-x) PubMed DOI

Hold B, Schleidt M. 1977. The importance of human odour in non-verbal communication. Z. Tierpsychol. 43, 225–238. (10.1111/j.1439-0310.1977.tb00072.x) PubMed DOI

Faure P. 1987. Parfums et aromates de l'Antiquité. Paris, France: Edition Fayard.

Bodiou L, Mehl V. 2011. Odeurs antiques. Paris, France: Edition Les Belles Lettres.

Woudhuysen H, Norbrook D. 1992. The Penguin book of renaissance verse: 1509–1659. London, UK: The Penguin Press.

Allen C, Havlíček J, Roberts SC. 2015. Effect of fragrance use on discrimination of individual body odor. Front. Psychol. 6, 1115 (10.3389/fpsyg.2015.01115) PubMed DOI PMC

Allen C, Havlíček J, Roberts SC. 2019. The effects of artificial fragrances on human olfactory communication. In Chemical signals in vertebrates 14 (ed. Buesching C.), pp. 107–117. Cham, Switzerland: Springer.

Howes D. 1990. Les sensations discrètes de la bourgeoisie. Anthropol. Soc. 14, 5–12. (10.7202/015124ar) DOI

Wang X, Zhang C, Xia X, Yang Y, Zhou C. 2019. Effect of gender on odor identification at different life stages: a meta-analysis. Rhinology 57, 322–330. (10.4193/Rhin19.005) PubMed DOI

Nováková L, Valentová JV, Havlíček J. 2014. Engagement in olfaction-related activities is associated with the ability of odor identification and odor awareness. Chemosens. Percept. 7, 56–67. (10.1007/s12078-014-9167-2) DOI

Gilbert AN, Wysocki CJ. 1991. Quantitative assessment of olfactory experience during pregnancy. Psychosom. Med. 53, 693–700. (10.1097/00006842-199111000-00009) PubMed DOI

Okamoto M, Shirasu M, Fujita R, Hirasawa Y, Touhara K. 2016. Child odors and parenting: a survey examination of the role of odor in child-rearing. PLoS ONE 11, e0154392 (10.1371/journal.pone.0154392) PubMed DOI PMC

Hudson R, Arriola A, Martinez-Gomez M, Distel H. 2006. Effect of air pollution on olfactory function in residents of Mexico City. Chem. Senses 31, 79–85. (10.1093/chemse/bjj019) PubMed DOI

Dalton PH, et al. 2010. Chemosensory loss: functional consequences of the World Trade Center disaster. Environ. Health Perspect. 118, 1251–1256. (10.1289/ehp.1001924) PubMed DOI PMC

Hoover KC. 2018. Sensory disruption in modern living and the emergence of sensory inequities. Yale J. Biol. Med. 91, 53–62. PubMed PMC

Calderon-Garciduenas L, Rodriguez-Alcaraz A, Villarreal-Calderon A, Lyght O, Janszen D, Morgan KT. 1998. Nasal epithelium as a sentinel for airborne environmental pollution. Toxicol. Sci. 46, 352–364. (10.1006/toxs.1998.2549) PubMed DOI

Calderon-Garciduenas L, et al. 2008. Long-term air pollution exposure is associated with neuroinflammation, an altered innate immune response, disruption of the blood-brain barrier, ultrafine particulate deposition, and accumulation of amyloid beta-42 and alpha-synuclein in children and young adults. Toxicol. Pathol. 36, 289–310. (10.1177/0192623307313011) PubMed DOI

O'Meara C, Majid A. 2016. How changing lifestyles impact Seri smellscapes and smell language. Anthropol. Linguist. 58, 107–131. (10.1353/anl.2016.0024) DOI

Sorokowska A, Drechsler E, Karwowski M, Hummel T. 2017. Effects of olfactory training: a meta-analysis. Rhinology 55, 17–26. (10.4193/Rhin16.195) PubMed DOI

Al Aïn S, Poupon D, Hétu S, Mercier N, Steffener J, Frasnelli J. 2019. Smell training improves olfactory function and alters brain structure. Neuroimage 189, 45–54. (10.1016/j.neuroimage.2019.01.008) PubMed DOI

Livermore A, Hummel T. 2004. The influence of training on chemosensory event-related potentials and interactions between the olfactory and trigeminal systems. Chem. Senses 29, 41–51. (10.1093/chemse/bjh013) PubMed DOI

Tempere S, Cuzange E, Bougeant J, de Revel G, Sicard G. 2012. Explicit sensory training improves the olfactory sensitivity of wine experts. Chemosens. Percept. 5, 205–213. (10.1007/s12078-012-9120-1) DOI

Martinec Nováková L, Plotěná D, Havlíček J. 2017. Age and pubertal status-related changes in reports of perception of personal odours. Perception 46, 484–497. (10.1177/0301006616686096) PubMed DOI

Allen C, Havlíček J, Williams K, Roberts SC. 2018. Perfume experts' perceptions of body odors: toward a new lexicon for body odor description. J. Sens. Stud. 33, e12314 (10.1111/joss.12314) DOI

Arshamian A, Manko P, Majid A. 2020. Limitations in odour simulation may originate from differential sensory embodiment. Phil. Trans. R. Soc. B 375, 20190273 (10.1098/rstb.2019.0273) PubMed DOI PMC

Maynard Smith J, Harper D. 2003. Animal signals. Oxford, UK: Oxford University Press.

Natsch A, Emter R. 2020. The specific biochemistry of human axilla odour formation viewed in an evolutionary context. Phil. Trans. R. Soc. B 375, 20190269 (10.1098/rstb.2019.0269) PubMed DOI PMC

Radadiya A, Pickett JA. 2020. Characterizing human odorant signals: insights from insect semiochemistry and in silico modelling. Phil. Trans. R. Soc. B 375, 20190263 (10.1098/rstb.2019.0263) PubMed DOI PMC

Roberts SC, Misztal PK, Langford B. 2020. Decoding the social volatilome by tracking rapid context-dependent odour change. Phil. Trans. R. Soc. B 375, 20190259 (10.1098/rstb.2019.0259) PubMed DOI PMC

Williams J, Ringsdorf A. 2020. Human odour thresholds are tuned to atmospheric chemical lifetimes. Phil. Trans. R. Soc. B 375, 20190274 (10.1098/rstb.2019.0274) PubMed DOI PMC

Perl O, Mishor E, Ravia A, Ravreby I, Sobel N. 2020. Are humans constantly but subconciously smelling themselves? Phil. Trans. R. Soc. B 375, 20190372 (10.1098/rstb.2019.0372) PubMed DOI PMC

Frumin I, et al. 2015. A social chemosignaling function for human handshaking. eLife 4, e05154 (10.7554/eLife.05154) PubMed DOI PMC

Oleszkiewicz A, Kunkel F, Larsson M, Hummel T. 2020. Consequences of undetected olfactory loss for human chemosensory communication and well-being. Phil. Trans. R. Soc. B 375, 20190265 (10.1098/rstb.2019.0265) PubMed DOI PMC

Schäfer L, Sorokowska A, Sauter J, Schmidt AH, Croy I. 2020. Body odours as a chemosignal in the mother–child relationship: new insights based on an human leucocyte antigen-genotyped family cohort. Phil. Trans. R. Soc. B 375, 20190266 (10.1098/rstb.2019.0266) PubMed DOI PMC

Ferdenzi C, Richard Ortegón S, Delplanque S, Baldovini N, Bensafi M. 2020. Interdisciplinary challenges for elucidating human olfactory attractiveness. Phil. Trans. R. Soc. B 375, 20190268 (10.1098/rstb.2019.0268) PubMed DOI PMC

de Groot JHB, Kirk PA, Gottfried JA. 2020. Encoding fear intensity in human sweat. Phil. Trans. R. Soc. B 375, 20190271 (10.1098/rstb.2019.0271) PubMed DOI PMC

Pause BM, Storch D, Lübke KT. 2020. Chemosensory communication of aggression: women's fine-tuned neural processing of male aggression signals. Phil. Trans. R. Soc. B 375, 20190270 (10.1098/rstb.2019.0270) PubMed DOI PMC

Fialová J, Třebický V, Kuba R, Stella D, Binter J, Havlíček J. 2020. Losing stinks! The effect of competition outcome on body odour quality. Phil. Trans. R. Soc. B 375, 20190267 (10.1098/rstb.2019.0267) PubMed DOI PMC

Sarolidou G, Axelsson J, Kimball BA, Sundelin T, Regenbogen C, Lundström JN, Lekander M, Olsson MJ. 2020. People expressing olfactory and visual cues of disease are less liked. Phil. Trans. R. Soc. B 375, 20190272 (10.1098/rstb.2019.0272) PubMed DOI PMC

Wyatt TD. 2020. Reproducible research into human chemical communication by cues and pheromones: learning from psychology's renaissance. Phil. Trans. R. Soc. B 375, 20190262 (10.1098/rstb.2019.0262) PubMed DOI PMC

Kupferschmidt K. 2019. Atmospheric scientists join pheromone quest. Science 364, 112 (10.1126/science.364.6436.112) PubMed DOI

Emotional expression in human odour