George H. Dodd – författare

THE SENSE OF SMELL The nose is normally mistakenly assumed to be the organ of smell reception. It is not. The primary function of the nose is to regulate the temperature and humidity of inspired air, thereby protecting the delicate linings of the lungs. This is achieved by the breathed air passing through narrow passageways formed by three nasal turbinates in each nostril. The turbinates are covered by spongy vascular cells which can expand or contract to open or close the nasal pathways. The olfactory receptors, innervated by the 1st cranial nerve, are located at the top of the nose. There are about 50 million smell receptors in the human olfactory epithelia, the total size of which, in humans, is about that of a small postage stamp, with half being at the top of the left and half at the top of the right nostril. The receptive surfaces of olfactory cells are ciliated and extend into a covering layer of mucus. There is a constant turnover of olfactory cells. Their average active life has been estimated to be about 28 days.

in 1951 Oellinek, 1951), until the conference held at the University of Warwick in 1986 there has previously never been a joint meeting of the industrial and academic disciplines relating to the sense of smell. Each year brings the launchings of many new perfumes; the respective national perfumery societies hold meetings; conferences on the sense of smell take place. These events involve the exchange of important knowledge relating to perfumes but the information remains largely isolated. The Warwick Olfaction Research Group is unusual in that it is led by two people, one of whom is a practising perfumer with an understanding of what it means to be asked to create a perfume, and the other a psychologist with an expertise in the area of emotion. Our interaction (Dodd and Van Toller, 1983) was a potent stimulus to hold the First International Conference on the Psychology of Perfumery. The main purpose of the meeting was to see if there was a framework that would knit the area together into a coherent set of ideas and also to give new perspectives to the study of perfumes. We invited speakers from all areas of the discipline. Thus, the meeting brought together people from the fragrance industry, academics and aromatherapists into a forum for debate. Besides the scientific basis of smell and perfumery, other important topics, including the important one of educating the general public about; olfaction and perfume, were discussed.