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olfactory bulb

·June 12, 2025·4 min read

Smelling Food Triggers Fullness, But Only in Lean Brains

Researchers have identified a new brain pathway in mice that links the smell of food to feelings of fullness—offering insight into how scent influences appetite. When lean mice smelled food, a group of nerve cells in the medial septum activated rapidly, signaling satiety and reducing food intake.

Auditory Neuroscience Featured Neuroscience

·January 30, 2025·4 min read

How the Brain Adapts to New Sensory Contexts

New research reveals how the brain rapidly adapts to sensory changes using a feedback loop between the olfactory cortex and the olfactory bulb. Scientists trained mice to associate rewards with specific sounds and smells, then switched the rules to test their adaptability.

This shows neurons and the olfactory bulb

Featured Neurology Neuroscience

·April 21, 2023·3 min read

Sniffing Out the Mechanism Behind Parkinson’s Smell Loss

Up to 90% of patients report experiencing a diminished sense of smell, even prior to the onset of other symptoms of Parkinson's disease. A new study reveals the mechanism behind smell loss associated with Parkinson's, reporting mouse models with olfactory impairments had severe pathology in projection neurons of the olfactory pathway. The mice also had reduced neurogenesis in the olfactory bulb.

This shows a young girl smelling a flower

Autism Featured Neuroscience Open Neuroscience Articles

·February 13, 2023·4 min read

Study May Help to Explain Smell Challenges in Individuals With Autism

Study sheds light on why some people with autism experience aversion to certain smells and the neural mechanisms that underlie olfactory processing in those with ASD.

Featured Neurology Neuroscience

·December 14, 2022·4 min read

Olfactory Viral Inflammation Associated With Accelerated Onset of Alzheimer’s Disease

Alzheimer's disease onset may be accelerated by viruses that inflame and disrupt signals from the olfactory system to the hippocampus, a new study reports.

Featured Neuroscience

·October 31, 2022·4 min read

Mapping the Path From Smell to Perception

A new brain map charts the way sensory information is routed between olfactory-processing areas of the brain.

Featured Genetics Neuroscience

·October 5, 2022·4 min read

Second Stem Cell Type Discovered in Mouse Brain

A newly discovered second stem cell population in the mouse brain is responsible for the production of new neurons in the olfactory bulb of adult mice.

This shows olfactory neurons in a mouse nasal cavity

Featured Neuroscience Open Neuroscience Articles

·May 30, 2022·5 min read

Olfactory Neurons Adapt to the Surrounding Environment

Study reveals how olfactory neurons adapt to the surrounding environment.

This shows cells from the olfactory bulb

Featured Neuroscience Open Neuroscience Articles

·May 25, 2022·4 min read

Scientists Build Subcellular Map of Entire Brain Networks

A new imaging technique captures information about the function and structure of brain tissue at the subcellular level.

This diagram shows how inflammation occurs in the nasal passage

Featured Neurology Neuroscience

·April 11, 2022·6 min read

Inflammation Caused by COVID-19, Rather Than the Virus Itself, May Lead To Loss of Smell

Anosmia, the loss of the sense of smell which is a common symptom of COVID-19, may be a secondary consequence of immune system inflammation rather than a direct action of the virus.