Summary: Combining non-invasive brain stimulation with a person’s favorite music from the past may help activate long-held memories and improve mood for older adults with mild cognitive impairment (MCI), according to a new study led by researchers at Baycrest.
Source: Baycrest.
Baycrest begins the first clinical study pairing personalized music therapy with brain stimulation to support memory in people with Mild Cognitive Impairment (MCI).
Researchers hope this approach will point the way toward an affordable, easy-to-use intervention for people with MCI, a condition that increases the risk of developing Alzheimer’s disease.
Dr. Claude Alain, assistant director and senior scientist at Baycrest’s Rotman Research Institute (RRI), is leading the study that pairs listening to personally meaningful music from a person’s past with Transcranial Direct Current Stimulation (tDCS). tDCS is a non-invasive, painless form of brain stimulation that applies a very low-intensity electrical current through the skull to modulate brain activity.
Previous research has shown that music can lift mood and foster social engagement among older adults living with dementia. Familiar songs and melodies often trigger memories and emotions tied to earlier life experiences, which can increase interaction with caregivers and family members. Brain stimulation techniques such as tDCS have also been reported to temporarily enhance aspects of memory and attention, although the precise reasons for those effects remain under investigation.
“Somehow music activates memories in dementia patients, which in turn leads to more social engagement and interaction with caregivers,” says Dr. Alain, who is also a psychology professor at the University of Toronto. “Brain stimulation has also been shown to temporarily improve a person’s memory and attention, but the reason it helps is still unclear.
“By combining personalized music choices with tDCS, we aim to strengthen the unique brain pathway music uses to activate memories and improve the effectiveness of this musical intervention among patients who are starting to experience memory issues.”
While there are limited options available today to treat or slow memory decline in MCI, this study explores a low-cost, low-risk intervention that could be delivered in clinics or potentially at home with proper clinical oversight. The research team will evaluate whether synchronous application of tDCS while participants listen to well-known and emotionally meaningful music can better reactivate autobiographical memories, improve mood, and enhance engagement compared with music alone.
The study is currently recruiting older adults diagnosed with mild cognitive impairment. People interested in participating can visit the Baycrest research participation page at www.baycrest.org/participate/participate-in-research/ or leave a message at 416-785-2500 ext. 2080 for more information about eligibility and scheduling.
Funding: The research is supported by the Lorraine Johnston Foundation, which contributed to the study’s development and provided funds to hire staff and support testing with older adults who have MCI.
With additional resources and successful outcomes from the initial trial, the research team could extend investigations into how brain stimulation interacts with music-related neural pathways. Understanding those brain mechanisms would be an important step toward refining the approach and determining whether similar methods could be adapted for people with more advanced forms of dementia.
The study focuses on measuring memory performance, mood, and levels of social engagement before and after sessions that combine music listening with tDCS. Researchers will compare these outcomes against control conditions to determine whether the combined intervention produces meaningful and lasting benefits.
By prioritizing personalized music choices and safe, non-invasive stimulation, the study aims to respect patient comfort and build on existing evidence that familiar music can evoke autobiographical memories. The goal is to offer a realistic, patient-centered intervention that supports quality of life for people experiencing early memory changes.
Source: Jonathan MacIndoe – Baycrest
Image Source: Image adapted from the Baycrest news release.