Insects have extremely sensitive systems of olfaction. These systems have been explored as potential sensors for odourants associated with forensics, medicine, security, and agriculture application. Most sensors based on insect olfaction utilize associative learning to "program" the insects to exhibit some form of behavioural response to a target odourant. To move to the next stage of developme...

Olfactory hallucinations (smelling odors that are not present) are intrusive and disruptive yet challenging to investigate because they cannot be produced on demand. In this study, the authors attempted to model olfactory hallucinations using hypnotic suggestions. We gave some subjects a suggestion to smell an odor in the absence of a real odor (positive hallucination) and gave others a suggest...

The LCOT is a self-administered test designed to assess olfactory deficits. Altogether, 525 subjects contributed to the validation. Elderly participants were well represented in this sample. In a validation study (study 1), 407 healthy and 17 anosmic volunteers between 15 and 91 years of age underwent threshold, supraliminal detection, and identification testing. Cutoff values for normosmia and...

Rhinolith is like a stone formation within the nasal cavity. Although stones rarely form in the nasal cavity, the findings of calcified objects or stones anywhere within the body has long been a subject of interest. Though infrequently observed, nasal concretions can be the source of bad smell from the nose and therefore a social concern for the patient. The salient features of such Rhinoliths ...

Olfaction, the sense of smell, is characterized by a notable age-dependency such that aging individuals are more likely to have poor olfactory abilities. These impairments considered be mostly irreversible and as having potentially profound effects on quality life food behavior, well constituting warning signs mortality, cognitive dysfunction, dementia. Here, we review current state research ol...

BACKGROUND Odorant binding proteins (OBPs) play important roles in insect olfaction. The brown planthopper (BPH), Nilaparvata lugens Stål (Delphacidae, Auchenorrhyncha, Hemiptera) is one of the most important rice pests. Its monophagy (only feeding on rice), wing form (long and short wing) variation, and annual long distance migration (seeking for rice plants of high nutrition) imply that the o...

The study provides a systematic review that explores the current literature on olfactory capacity in abnormal eating behavior. The objective is to present a basis for discussion on whether research in olfaction in eating disorders may offer additional insight with regard to the complex etiopathology of eating disorders (ED) and abnormal eating behaviors. Electronic databases (Medline, PsycINFO,...

BACKGROUND Population-based data on the relationship between impaired olfaction and risk of mortality among older adults are lacking. We used a representative cohort of adults aged 60 years or older to assess whether olfactory loss is a predictor of mortality, independent of potential confounders. METHODS Olfaction was measured by the San Diego Odor Identification Test (SDOIT) among 1,636 par...

Little is known about the olfactory capabilities of extinct basal (non-neornithine) birds or the evolutionary changes in olfaction that occurred from non-avian theropods through modern birds. Although modern birds are known to have diverse olfactory capabilities, olfaction is generally considered to have declined during avian evolution as visual and vestibular sensory enhancements occurred in a...

Abstract Introduction Research has provided evidence for the transfer of single emotions including anger, anxiety and happiness through olfactory chemosignals, yet no work examined role odour function in aggregation more complex emotional states or contagion process. The aim present study was to ascertain whether an individual’s tendency experience affected by objective measures their subjectiv...