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Auditory entrainment coordinates cortical-BNST-NAc triple time locking to alleviate the depressive disorder
Go to source). “Our research integrates the fields of neuroscience, psychiatry, and neurosurgery, providing a foundation for any research targeting the interaction between music and emotion,” says senior author Bomin Sun, director and professor of the Center for Functional Neurosurgery at Shanghai Jiao Tong University.
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Over 85% of surgeons listen to classical music in the operating room, as it helps improve focus and precision. #classicalmusic #brain #depression’
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“Ultimately, we hope to translate our research findings into clinical practice, developing convenient and effective music therapy tools and applications.” Over 85% of surgeons listen to classical music in the operating room, as it helps improve focus and precision. #classicalmusic #brain #depression’
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The study focused on 13 patients with treatment-resistant depression who already had electrodes implanted in their brains for the purpose of deep-brain stimulation.
These implants are placed in a circuit connecting two areas in the forebrain—the bed nucleus of the stria terminalis (BNST) and the nucleus accumbens (NAc).
Using these implants, the researchers found that music generates its antidepressant effects by synchronizing the neural oscillations between the auditory cortex, which is responsible for processing sensory information, and the rewards circuit, which is responsible for processing emotional information.
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“The BNST-NAc circuit sometimes referred to as part of the ‘extended amygdala,’ underscores the close relationship between this circuit and the amygdala, a central structure in emotional information processing,” Sun says.Advertisement
The patients in the study were assigned to two groups: low music appreciation and high music appreciation.
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By grouping the patients, the investigators were able to study the antidepressant mechanisms of music more precisely and propose personalized music therapy plans that would improve treatment outcomes.
For example, when inserting theta frequency noise into music to enhance BNST-NAc oscillatory coupling, those in the low music appreciation group of patients reported higher music enjoyment.
Several pieces of Western classical music were used in the study. This type of music was chosen because most participants did not have familiarity with it, and the researchers wanted to avoid any interference that could arise from subjective familiarity.
“We concluded that the music choices during the formal listening process were individualized and unrelated to the music’s emotional background,” Sun says.
The team’s future research will focus on several areas. For one, they aim to study how the interaction between music and the deep structures of the brain play a role in depressive disorders.
They will also introduce other forms of sensory stimuli, including visual images, to investigate the potential combined therapeutic effects of multi-sensory stimulation on depression.
“By collaborating with clinicians, music therapists, computer scientists, and engineers, we plan to develop a series of digital health products based on music therapy, such as smartphone applications and wearable devices,” Sun says.
“These products will integrate personalized music recommendations, real-time emotional monitoring and feedback, and virtual-reality multi-sensory experiences to provide convenient and effective self-help tools for managing emotions and improving symptoms in daily life.”
Reference:
- Auditory entrainment coordinates cortical-BNST-NAc triple time locking to alleviate the depressive disorder - (https://www.sciencedirect.com/science/article/pii/S2211124724008039?via%3Dihub)
Source-Eurekalert