The Barnes lab uses behavioral, anatomical, electrophysiological, and molecular biological approaches in young and aged rodents, nonhuman primates and humans to investigate brain aging. 

The research conducted in this lab is centered on the following:

  • To examine the neurobiological mechanisms of normal memory decline with age in rodents, nonhuman primates and humans.
  • To understand how memory is impacted in the normal aging brain, so that abnormal departures from this can be detected and identified.
  • To transform what we learn in animal models of normal aging into treatments that optimize and extend the cognitive healthspan of older individuals.


Explore posters presented at the Society for Neuroscience Annual Conferences to learn more about some of our research.

SfN 2021 posters   SfN 2022 Posters   SfN 2023 posters    



Behavior card photo


Instantaneous Cue Rotation Arena 

One of the behavioral apparatuses used for rodent spatial navigation tasks.

Electrophysiology card photo


Electrophysiology in rodents

Electrophysiological recordings are used to investigate brain activity and electrical signals while animals perform tasks.

Molecular Biology card photo

Molecular Biology

In situ Hybridization

Fluorescent in situ hybridization is used to tag and visualize mRNA expression in brain regions of interest. 

MRI card photo

Anatomy: MRI

Magnetic Resonance Imaging (MRI)

MR images are gathered and used to examine brain structures and study potential changes between young and aged animals.

Society for Neuroscience Presentations

Anatomy: IHC

Immunohistochemistry (IHC)

Using immunohistochemistry, fluorescent labeling, and microscopy we can visualize various neurobiological features in brain regions of interest. 

MRI Mapping card image

Anatomy: MRI Mapping

MRI Processing

MR images are mapped onto labeled brain atlases to get anatomical specificity.