The present study was designed to examine behavioral responses (interpreted as preferences) to olfactory cues (nest bedding odor and odors of estrous and anestrus females) in adult male rats after they had a short term reversible, bilateral, nasal obstruction (RbNO) as developing rat pups. These results were compared to behavior of control (untreated) and sham operated male littermates. Behavio...

Attraction to opposite-sex pheromones during rodent courtship involves a pathway that includes inputs to the medial amygdala (Me) from the main and accessory olfactory bulbs, and projections from the Me to nuclei in the medial hypothalamus that control reproduction. However, the consideration of circuitry that attributes hedonic properties to opposite-sex odors has been lacking. The medial olfa...

BACKGROUND Olfactory impairment is increasingly recognized as an early symptom in the development of Parkinson's disease. Testing olfactory function is a non-invasive method but can be time-consuming which restricts its application in clinical settings and epidemiological studies. Here, we investigate odor identification as a supportive diagnostic tool for Parkinson's disease and estimate the p...

Attraction to opposite-sex pheromones during rodent courtship involves a pathway that includes inputs to the medial amygdala (Me) from the main and accessory olfactory bulbs, and projections from the Me to nuclei in the medial hypothalamus that control reproduction. However, the consideration of circuitry that attributes hedonic properties to opposite-sex odors has been lacking. The medial olfa...

Olfactory memory in control rats and in animals with entorhinal cortex lesions was tested in four paradigms: (1) a known correct odor was present in a group of familiar but nonrewarded odors, (2) six known correct odors were simultaneously present in a maze, (3) correct responses required the learning of associations between odors and objects, and (4) six odors, each associated with a choice be...

Abstract Most mammals sniff to detect odors, but little is known how the periodic inhale and exhale that make up a helps improve odor detection. In this combined experimental theoretical study, we use fluid mechanics machine olfaction rationalize benefits of sniffing at different rates. We design build bellows sensor system change in current as function concentration. A fast enables quick recog...