Researchers have discovered promising results from a study investigating near-infrared light therapy as a treatment for cognitive and emotional symptoms in Parkinson’s disease. The clinical trial, conducted under the title “Revitalise Cognition,” examined how a specific type of light stimulation could affect patients with mild to moderate stages of the neurodegenerative condition.
How the research was conducted
The study was designed as a randomised, double-blind, placebo-controlled trial. This means that participants were randomly assigned to either receive the real treatment or a sham treatment, and neither the patients nor the researchers knew which treatment was being given until after the results were collected.
This is the gold standard in medical research because it reduces bias and helps ensure accurate results.
Participants received transcranial near-infrared stimulation using a device placed on the head. This device emitted low-level light waves that could penetrate the skull and reach the brain.
The therapy was administered three times a week over an eight-week period. A total of 40 patients took part, with 20 receiving the actual light treatment and 20 receiving a placebo version that looked and felt the same but didn’t emit light.
What researchers found
The results showed that patients who received the real near-infrared stimulation reported better memory, improved attention, and less depression compared to the placebo group.
These improvements were measured using standard cognitive tests and patient self-assessment forms. No serious side effects were reported, and participants tolerated the treatment well.
According to the findings, “transcranial near-infrared stimulation led to improvements in cognitive function and mood symptoms,” particularly in tasks that involved short-term memory and focus.
The researchers noted that the benefits were noticeable after just a few weeks and lasted throughout the treatment period.
What the study revealed about Parkinson’s
Parkinson’s disease is commonly associated with tremors and movement problems, but many people with the condition also struggle with memory loss, confusion, and depression. These symptoms often worsen over time and are difficult to treat with current medications.
This study suggests that light therapy might offer a new way to support brain function without drugs. While the exact reason it works is still being explored, scientists believe the infrared light may boost energy production in brain cells and reduce inflammation, helping neurons communicate better.
As one participant noted during the study, “It was easier to remember things, and I felt less down after a few weeks.” Researchers say the positive results are encouraging but stress that larger studies are needed to confirm the benefits and explore how long the improvements last.
The study adds to growing interest in non-invasive brain therapies for neurodegenerative diseases and marks a step forward in offering more comprehensive care for Parkinson’s patients.
Disclaimer: This article summarises medical research findings and is for informational purposes only. It is not intended as medical advice. Always consult a healthcare professional for medical guidance.