Thursday, September 21, 2023

Newly Discovered Pattern of Brain Waves Signals Depression

 




A new report in "Nature" reveals a neural code that connects to the presence or absence of depression in the brain. This is a significant step forward in our understanding of this widely-spread condition. 

– A Hub for Depression is discovered: - Subcallosal Cingulate, also known as "Brodmann area 25," is a region located deep in the brain intersecting with four major nerve fiber tracts. These pathways are closely involved in functions often affected by depression, such as emotional regulation, sleep, appetite, reward, motivation, and memory. This location is crucial to the onset and progression of depression. Deep Brain Stimulation (DBS) effectiveness targeting this area has increased over the years, thanks to refined techniques that enable precision.

- Promising Biomarker found: The neural code researchers found within the subcallosal cingulate could indicate relapses in depressive episodes, which can help clinicians provide more targeted interventions.

- Brain Scans & Their Revelations: Pre-surgery scans of participants indicated a correlation between damage to specific nerve fiber tracts and the severity of their depressive symptoms. These insights might lead to more advanced imaging techniques for early detection.

- Facial Expressions as Indicators: Using artificial intelligence, facial changes were discovered that mirrored the brain's wellness signals. This suggests an external and visible indicator that connects to the internal neural changes related to depression. This combination of neurology and technology shows promise for early and non-invasive diagnostic methods. 

Abbott Laboratories, an American multinational medical devices and healthcare company, is now working with the FDA on a plan for a clinical trial based on these promising results.


Read the whole article: Implanted electrodes pick up a pattern of brain waves that can signal the presence or absence of depression.


Picture credit: Eva Deli: Depression



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