Articles tagged with Odor Cues
Researchers discovered that tobacco hawkmoth wings have specialized hair-like structures that can detect specific aromas. The wings contain sensory receptors that can pick out unpleasant amine odours, guiding the moths to their favorite plants for laying eggs.
Researchers are studying foul-smelling substances to understand what attracts the New World screwworm, a flesh-eating parasite, to its favorite meal - open wounds. The goal is to develop better lures for trapping this serious threat to the livestock industry.
Researchers found that flies use brain circuitry for spatial navigation to remember where a plume boundary lies and steer back to it. By tracking the edge of an odor plume, flies store a directional memory that allows them to navigate towards the scent source even in turbulent conditions.
Researchers found that smelling dark chocolate odors increased training volume and suppressed hunger, while milk chocolate had no effect. The study suggests that food scents can trigger changes in body and mind similar to actual consumption.
Researchers at Penn Vet have shown that trained dogs can identify the odor of hemangiosarcoma, a malignant cancer of blood vessel cells, with an accuracy rate of 70%. Early detection could lead to better outcomes, including prevention of disease spread and earlier removal of the spleen or initiation of chemotherapy.
A new review emphasizes the importance of smell health, highlighting its role in nutrition, cognitive function, and psychological resilience. Researchers call for a global campaign to promote smell health through education, awareness, and targeted public health policies.
A study from the University of Victoria suggests that humans can smell testosterone and associate it with dominance. The research found that participants rated men with higher testosterone levels as more dominant than those with lower levels, indicating a link between body odour and perceptions of social status.
Researchers analyzed underarm odour samples from 29 women over a menstrual cycle, finding no evidence that men prefer fertile days. Chemical analysis also showed no correlation between odour composition and fertility status.
Insects like fruit flies use simple, efficient systems to recognize odors. Researchers found that paired olfactory receptor neurons in fly antennae facilitate computations in the central brain through pre-processing stage.
A recent study published in JAMA Network Open found that familiar scents can strengthen memory recall in depressed individuals, potentially aiding recovery. Researchers discovered that odors engage the amygdala, a key component of memory formation, more effectively than words.
Researchers at City University of Hong Kong developed a novel, wearable, olfaction feedback system with wireless capabilities for virtual reality. The system releases various odours using miniaturized odour generators and has been tested with an average success rate of 93 percent.
Researchers found that washing with certain soaps changed the human body odor profile, making some people more attractive and others repellent to mosquitoes. The team identified specific chemicals associated with mosquito attraction and repulsion, offering insights into how soap use can impact mosquito preference.
Researchers at Stockholm University developed a fully automatic method to categorize English smell words into offensive, malodorous, fragrant, and edible smells. The study's findings have great potential for standardizing vocabularies in the food and perfume industries.
Researchers at University of California - Riverside discovered a chemical cocktail in human skin that summons disease-spreading mosquitoes. The combination of carbon dioxide plus two chemicals, 2-ketoglutaric and lactic acids, elicits a scent that attracts female Aedes aegypti mosquitoes, vectors of Zika and other viruses.
Researchers discovered that mosquito brains use a surprisingly simple mechanism to recognize human odor, involving just two nerve centers. The team identified the specific compounds decanal and undecanal as key components of human scent, which are also present in other mammal odors.
A team of researchers at Washington University in St. Louis used machine learning to understand how locusts can consistently recognize smells despite environmental factors, finding that combining the activity of ON and OFF neurons provides a simple yet effective solution.
Researchers found that rats prioritize providing food assistance to those in need, as indicated by the 'smell of hunger'. Seven volatile organic chemicals differed significantly between hungry and satiated rats, serving as a reliable cue for reciprocal cooperation.