How the human brain processes different smells

Electrophysiological representations of odor in the human brain

NIH-funded research Northwestern University at Chicago · NIH-11036310

This study is looking at how our brains understand different smells, like how strong they are and what they are, by recording brain activity while people share their thoughts on the odors, which could help us learn more about smell problems related to certain diseases.

Quick facts

Grant typeR01 grant
Study typeNIH-funded research
Funding institutionNorthwestern University at Chicago NIH-funded
Lab location1 site (Chicago, United States)
Project IDNIH-11036310 on NIH RePORTER

What this research studies

This research investigates how the human brain represents various features of odors, such as their intensity and identity. By using direct invasive recordings from the olfactory cortex in humans, researchers will collect perceptual ratings while analyzing neural activity. This approach aims to bridge the gap between how odors are perceived and how they are processed in the brain, enhancing our understanding of the olfactory system. The findings could have implications for neurodegenerative diseases that affect olfactory processing.

Who could benefit from this research

Good fit: Ideal candidates for participation would include individuals with neurodegenerative diseases such as Alzheimer's or Parkinson's, as well as healthy volunteers interested in olfactory perception.

Not a fit: Patients with severe cognitive impairments or those unable to provide perceptual ratings may not benefit from this research.

Why it matters

Potential benefit: If successful, this research could improve our understanding of olfactory processing, potentially leading to better diagnostic and therapeutic strategies for neurodegenerative diseases.

How similar studies have performed: While there has been significant research on olfactory processing in rodents, this approach in humans is relatively novel and has not been extensively tested.

Where this research is happening

Chicago, United States

Researchers

About this research

  1. This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
  2. Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
  3. For full project details, budget, and progress reports, visit the official NIH RePORTER page below.
Conditions Alzheimer disease dementiaAlzheimer syndromeAlzheimer's Disease
Last reviewed 2026-06-09 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.