The vocabulary for describing odors in English natural language is not well understood, as prior studies of odor descriptions have often relied on preselected descriptors and odor ratings. Here, we present a data-driven approach that automatically identifies English odor descriptors based on their degree of olfactory association, and derive their semantic organization from their distributions in natural texts, using a distributional-semantic language model. We identify 243 descriptors that are much more strongly associated with olfaction than English words in general. We (...) then derive the semantic organization of these olfactory descriptors, and find that it is captured by four clusters that we name Offensive, Malodorous, Fragrant, and Edible. The semantic space derived from our model primarily differentiates descriptors in terms of pleasantness and edibility along which our four clusters are positioned, and is similar to a space derived from perceptual data. The semantic organization of odor vocabulary can thus be mapped using natural language data (e.g., online text), without the limitations of odor-perceptual data and preselected descriptors. Our method may thus facilitate research on olfaction, a sensory system known to often elude verbal description. (shrink)

Background: With rapidly ageing population worldwide, loneliness among older adults is becoming a global issue. Older migrants are considered being a vulnerable population and ethical issues are often raised in care for elderly. A deeper sense of loneliness, existential loneliness is one aspect of loneliness also described as the ultimate loneliness. Making oneself understood or expressing emotions, have shown to be particularly challenging for older migrants which could lead to experience of existential loneliness. Ageing and being a migrant are potential (...) triggers for experiencing existential loneliness. There appears to be, however, little known about being a migrant experiencing existential loneliness in old age. Aim: This study explored older migrants’ experience of existential loneliness. Research design: Qualitative study. Participants and research context: Data were collected through interviews (n = 15) with older (>65) migrants’ in Swedish nursing homes or senior citizen centres. A thematic analysis was performed to analyse the data. Ethical considerations: The study was conducted in accordance with the principles of research ethics. Findings: The result was described in terms of three themes: (1) Choices made in life, (2) seeking reconciliation with life and (3) thoughts about death and dying in a foreign country. Discussion: Ethical reflection and knowledge about how older migrants’ life story can lead to experiencing existential loneliness, could be of use in care for older migrants’. Conclusion: This study indicates that the experience of existential loneliness derived from being a migrant is a long-term and significant process. Migration was a hope of creating a meaningful life, the experience of existential loneliness occurred as migrants sought reconciliation with life, reflected upon their past choices, and thought about death and dying in a foreign country. (shrink)

Naming common odors is a surprisingly difficult task: Odors are frequently misnamed. Little is known about the linguistic properties of odor misnamings. We test whether odor misnamings of old adults carry information about olfactory perception and its connection to lexical-semantic processing. We analyze the olfactory–semantic content of odor source naming failures in a large sample of older adults in Sweden (n = 2479; age 58–100 years). We investigate whether linguistic factors and semantic proximity to the target odor name predict how (...) odors are misnamed, and how these factors relate to overall odor identification performance. We also explore the primary semantic dimensions along which misnamings are distributed. We find that odor misnamings consist of surprisingly many vague and unspecific terms, such as category names (e.g., fruit) or abstract or evaluative terms (e.g., sweet). Odor misnamings are often strongly associated with the correct name, capturing properties such as its category or other abstract features. People are also biased toward misnaming odors with high-frequency terms that are associated with olfaction or gustation. Linguistic properties of odor misnamings and their semantic proximity to the target odor name predict odor identification performance, suggesting that linguistic processing facilitates odor identification. Further, odor misnamings constitute an olfactory–semantic space that is similar to the olfactory vocabulary of English. This space is primarily differentiated along pleasantness, edibility, and concreteness dimensions. Odor naming failures thus contain plenty of information about semantic odor knowledge. (shrink)