The Brain’s Immune Cells Stand Sentinel Against Viral Invasion
The Brain’s Immune Cells Stand Sentinel Against Viral Invasion
Some viruses, possibly even SARS-CoV-2, can sneak into the brain through the nose. Recent studies show that microglia are ready for them when they do.
The Brain’s Immune Cells Stand Sentinel Against Viral Invasion
The Brain’s Immune Cells Stand Sentinel Against Viral Invasion

Some viruses, possibly even SARS-CoV-2, can sneak into the brain through the nose. Recent studies show that microglia are ready for them when they do.

Some viruses, possibly even SARS-CoV-2, can sneak into the brain through the nose. Recent studies show that microglia are ready for them when they do.

olfaction
Researchers Make Mice Smell Odors that Aren’t Really There
Researchers Make Mice Smell Odors that Aren’t Really There
Ruth Williams | Jun 18, 2020
Using optogenetics, scientists have simulated the sense of smell directly within the mouse brain to investigate the nature of olfactory perception.
Image of the Day: Olfactory Capacities
Image of the Day: Olfactory Capacities
Amy Schleunes | Apr 15, 2020
Most small amphibious mammals have a diminished sense of smell, a quality that likely arose because of a tradeoff with thermoregulation capacities that allowed them to conserve heat in aquatic environments.
Smell May Be Possible Without Olfactory Bulbs
Smell May Be Possible Without Olfactory Bulbs
Jef Akst | Nov 6, 2019
A study identifies five women who have a functioning sense of smell despite an apparent lack of olfactory bulbs—the region of the brain that processes odors.
Image of the Day: Mosquito Flight Simulator
Image of the Day: Mosquito Flight Simulator
Nicoletta Lanese | Jul 30, 2019
Carbon dioxide pumped into a bright chamber mimics a breathing host for the pest to target.
Stem Cells Delivered to the Nose Restore Mice’s Ability to Smell
Stem Cells Delivered to the Nose Restore Mice’s Ability to Smell
Kerry Grens | May 30, 2019
The introduced cells engrafted in the nose, became olfactory sensory neurons, and sent axons to the animals’ brains.
A Keen Sense of Smell Appears to Go Hand in Hand with Spatial Memory
A Keen Sense of Smell Appears to Go Hand in Hand with Spatial Memory
Shawna Williams | Jan 31, 2019
Authors of a small study say the two abilities likely evolved in tandem.
Zapping the Olfactory Bulb Produces Phantom Smells
Zapping the Olfactory Bulb Produces Phantom Smells
Shawna Williams | Nov 27, 2018
Researchers envision a cochlear implant–like device for the nose to give people with impaired olfaction a sense of smell.
Image of the Day: Scatterbrain
Image of the Day: Scatterbrain
Sukanya Charuchandra | Aug 2, 2018
Distributed neuronal networks help the brain sort smells.
Meet the Arachnid That May Add a New Chapter to the Book on Sensory Biology
Meet the Arachnid That May Add a New Chapter to the Book on Sensory Biology
Mary Bates | Nov 30, 2017
The whip spider senses the world in weird and wonderful ways.