Articles tagged with Pheromones
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A new USC study suggests that humans lost the ability to detect pheromones due to a gene essential for vomeronasal organ function. The study found that mutations in this gene occurred around 40 million years ago, leading to the disappearance of the gene and subsequent loss of vomeronasal organ function in primates.
Researchers found a specific neural structure processes pheromonal signals, governing mating and social behaviors. The 'pheromonal image' is akin to the visual 'face neurons' that recognize facial features.
Researchers at Cornell University discovered a previously undetected gene that regulates insect sex-pheromone production, leading to rapid evolution of chemical systems and new species emergence. The delta-14 gene allows females to change their pheromone components, attracting only one male out of 200 with the same response.
Researchers at Rockefeller University have found that mice engineered to lack specific genes linked to pheromone detection exhibit reduced aggression and sexual behavior. The study suggests that the absence of these genes impairs the ability to detect certain pheromones, leading to behavioral abnormalities.
Researchers have discovered a new method to isolate and understand the chemicals released by male sea lampreys to lure females. The study reveals that males release pheromones, not females, to initiate mating, offering potential new strategies for controlling sea lamprey populations.
Researchers at San Francisco State University found that 74% of women wearing perfume with a synthetic pheromone experienced an increase in sociosexual behaviors, including kissing, affection, and sexual intercourse. The study concluded that the pheromone increased the attractiveness of women to men, leading to more romantic behavior.
Researchers have found that pheromones play a crucial role in mice's gender recognition. The knockout mice, which lacked a gene for a pheromone receptor, were unable to recognize males and displayed unusual mating behavior. This breakthrough provides new insights into the neural circuitry responsible for sex discrimination in mice.
A protein in an insect's antenna picks up chemical signals called pheromones and changes its shape to eject them onto sensitive nerve endings. This discovery could lead to the development of insecticides that prevent insects from detecting other chemical signals, essential for their survival.
Researchers have found that both smells and pheromones can arouse instinctive behaviors in mammals, including humans. This is achieved through the detection of odorants by the vomeronasal organ (VNO) and the olfactory epithelium (OE), with pheromone signals directly influencing mid-brain areas controlling behavior and hormonal responses.
Researchers at Ohio State University found that exposed cats ate more and seemed more comfortable in a hospital than those not exposed to the pheromone. The study used synthetic FFP to signal comfort and amicability, showing an anxiety-reducing effect on some cats.
Researchers found that injured ruffe emit a potent, repugnant odor when in contact with other ruffe, which significantly suppresses their swimming and feeding activities. This cue has potential for managing the invasive species, but its effectiveness remains to be determined.
Scientists have pinpointed a protein called plethodontid receptivity factor (PRF) that directly influences female receptivity in salamanders, shortening the courtship time by 15%,. This discovery highlights the importance of pheromones in survival and provides insights into the evolution and mechanism of action of these complex chemicals.
Researchers at Oregon State University have discovered a male pheromone that calms female salamanders during courtship, making them more receptive to mating. The study highlights the complex role of pheromones in animal behavior and suggests potential applications in human reproduction.
A research team at MGH and Harvard University identified a molecule called TRP2 that may play a crucial role in the process of converting chemical signals into nerve impulses in rats. This discovery suggests that humans might process pheromones through a different mechanism than most other mammals.
Researchers have discovered that dust mites cluster together to survive dry spells, which may lead to new ways of exterminating them. The study found that males cluster to conserve moisture, while females do not, and that pheromones may play a role in finding mates.
Researchers at Cornell University have identified a chemical compound, anabaseine, in the secretions of ants that shows promise as a potential treatment for Alzheimer's disease. The compound stimulates nicotine receptor sites in the brains of patients and helps reduce memory loss.
Researchers have identified a multigene family of candidate pheromone receptors expressed by sensory neurons in the vomeronasal organ, which may recognize different classes of pheromones. The discovery could lead to understanding of innate behaviors and mating behaviors in mice.