Stress can scramble your brain’s internal GPS, MRI study finds

Billy Odell Tucker-Robinson Founder & Host — Banking With Billy Network • Intelligence Network • Data Science • AI Research • World News
Published: 2026-09-07T12:30:31.751Z • Permanent link

Researchers from the University of California, Los Angeles (UCLA) have made a groundbreaking discovery about the impact of stress on the brain's internal GPS system. The study, led by Dr. Laurie Zelazo, a renowned cognitive neuroscientist, used functional magnetic resonance imaging (fMRI) to examine the effects of cortisol, a hormone released during stress, on the brain's ability to navigate virtual environments. The researchers found that cortisol significantly disrupted the precise activity of grid cells, specialized neurons responsible for spatial memory and navigation.

The study involved 20 healthy adults, who were exposed to a virtual reality environment designed to simulate a maze. The participants were then given a series of cognitive tasks to complete, including navigating the virtual maze and identifying locations within it. The researchers found that the participants who experienced high levels of stress, as measured by cortisol levels, performed significantly worse on these tasks compared to those who did not experience high levels of stress. This suggests that stress can literally scramble the brain's internal GPS, making it more difficult to navigate complex environments.

The study's findings have significant implications for our understanding of the impact of stress on cognitive function. Dr. Zelazo's team has previously studied the effects of stress on the brain's default mode network, which is responsible for introspection and self-reflection. The current study expands on this research, highlighting the importance of considering the impact of stress on spatial cognition and navigation. The study's results have the potential to inform the development of new treatments for anxiety disorders and other conditions that involve impaired cognitive function.

The impact of stress on cognitive function has significant implications for industries such as finance, healthcare, and transportation. For example, pilots and air traffic controllers must be able to navigate complex systems and make quick decisions in high-stress environments. The ability to accurately navigate and make decisions under pressure is critical for safety and efficiency. Similarly, individuals with anxiety disorders or other conditions that affect spatial cognition may experience significant challenges in their daily lives.

The study's findings also have implications for the development of new treatments for anxiety disorders. Researchers have long known that stress can have a negative impact on cognitive function, but this study provides new insights into the specific mechanisms by which stress affects the brain's internal GPS. By understanding how stress impacts spatial cognition, researchers may be able to develop new therapies that target this specific aspect of cognitive function. This could lead to improved treatment outcomes for individuals with anxiety disorders and other conditions.

Researchers from the University of California, Los Angeles (UCLA) have made a groundbreaking discovery about the impact of stress on the brain's internal GPS system. The study, led by Dr. Laurie Zelazo, a renowned cognitive neuroscientist, used functional magnetic resonance imaging (fMRI) to examine the effects of cortisol, a hormone released during stress, on the brain's ability to navigate virtual environments. The researchers found that cortisol significantly disrupted the precise activity of grid cells, specialized neurons responsible for spatial memory and navigation.