Researchers discovered unique connectivity between the hippocampus and olfactory areas in the brain, a finding which explains why specific odors can trigger powerful memories. The study also reports a loss of sense of smell is associated with depression and a poorer quality of life.
Regions of the olfactory system in mice with higher amyloid beta expression exhibited lower activation of olfactory sensory neurons and decreased odor detection.
51% of COVID-19 patients report they experienced the loss of smell and taste up to five months after infection. On average, once their senses were restored, people reported a loss in sensitivity to smell and taste.
Trained scent detection dogs are able to detect organic compounds associated with COVID-19 in patients. Researchers report the dogs are better at detecting coronavirus infection than standard tests.
Study finds olfaction plays a significant role in the motivation to exercise. Mice who were "high runners" developed genetic differences in their olfactory systems that caused them to perceive smells differently than more sedentary mice.
The sense of taste in female mosquitoes is specially tuned to detect at least four different substances in blood.
Women who experience unexplained repeated pregnancy loss (uRPL) process olfactory signals related to male body odor differently to other women. Those who experience uRPL are better able to identify the smell of their spouse.