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Multimodal Musical Stimulation for Healthy Neurocognitive Aging

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Northeastern University

Status

Enrolling

Conditions

Aging

Treatments

Device: Gamma
Device: Synchrony

Study type

Interventional

Funder types

Other

Identifiers

NCT06229093
NortheasternMINDLabMultimodal

Details and patient eligibility

About

This is a Stage I randomized, sham-controlled trial on the effects of multimodal musical stimulation on working memory in aging. Neurologically healthy older and younger adults will be tested on working memory and electroencephalography in the first randomized controlled trial of music as a form of brain stimulation, with multimodal musical stimulation and control stimulation conditions. Results will test the causal role of oscillatory mechanisms of the brain on cognition, and will lay the groundwork to the first musical, neurophysiologically targeted, brain-stimulation device for reversing cognitive decline in aging.

Full description

Music contains amplitude and frequency modulations, rapid changes in acoustic signals that convey meaningful information to the listener. The human brain's ability to receive and interpret meaning from these signals is implemented by networks of neural oscillations: firing patterns of groups of neurons that track the music with rhythmic activity. Neural oscillations in different frequency bands subserve attention and memory, as well as perception and comprehension; they develop over the lifespan and are reduced in aging, especially in dementia. Being able to understand and causally control neural oscillations will have crucial implications for healthy neurocognitive aging. Since music naturally stimulates the brain with its rhythmic content over time, music may be used as a sustainable, naturalistic form of brain stimulation to induce oscillatory in neuronal populations. Furthermore, by inserting gamma-band energy as sensory stimulation during music listening, gamma-band activity may be increased in the brain in a way that is frequency-tuned to the brain's intrinsic network dynamics, thus replacing the decreased neural oscillations that are reduced in aging, and improving memory and cognition in older adults. The hypothesis is that gamma-band modulations inserted in lights, when coupled with music listening, can improve memory in older adults by frequency-tuning to intrinsic individual brain network dynamics. Results will test the causal role of oscillatory mechanisms of the brain on cognition. If successful, this trial will lay the groundwork to the first musical, neurophysiologically targeted, brain-stimulation device for reversing cognitive decline in aging.

Enrollment

100 estimated patients

Sex

All

Ages

18 to 95 years old

Volunteers

Accepts Healthy Volunteers

Inclusion criteria

  • normal or corrected-to-normal vision
  • no more than mild hearing loss
  • no recent history of neurological or psychiatric disorders, including mood disorders or use of medications that may affect cognition or responsiveness to music.

Exclusion criteria

  • moderate or severe hearing loss (40+ dB)
  • visual impairment (including color blindness) that cannot be corrected with glasses or contacts
  • recently changed dosage of cholinesterase inhibitors or psychotropic medication
  • recent history of psychotic or schizophrenic episodes
  • major neurologic diagnosis or other condition that might impair cognition or confound assessments (dementia, ADRD; Parkinson's disease, stroke, brain injury, epilepsy, or recent cardiovascular or neurovascular event)
  • recent history of serious physical trauma or diagnosis of serious chronic health condition requiring medical treatment and monitoring .

Trial design

Primary purpose

Basic Science

Allocation

Randomized

Interventional model

Parallel Assignment

Masking

Single Blind

100 participants in 2 patient groups

Older Adults (OA)
Sham Comparator group
Description:
The assignment of older adults to OA and OAg will be randomized. The within-subjects factor of stimulation modality includes 2 levels, to be administered in counterbalanced order: Visual (V, i.e., lights-only) and Audiovisual (AV, i.e., music-plus-lights). Each subject will be aware that they are receiving V and AV stimulation, and thus infer that we are comparing these two forms of stimulation and therefore assessing the effects of music. However, and important to the design of this study, all subjects will be blinded with respect to their group assignment; i.e., they will not know, until post-study debriefing, about the other arms of the study, and that the gamma-band stimulation is an active ingredient of the intervention.
Treatment:
Device: Synchrony
Older Adults Gamma (OAg)
Experimental group
Description:
The assignment of older adults to OA and OAg will be randomized. The within-subjects factor of stimulation modality includes 2 levels, to be administered in counterbalanced order: Visual (V, i.e., lights-only) and Audiovisual (AV, i.e., music-plus-lights). Each subject will be aware that they are receiving V and AV stimulation, and thus infer that we are comparing these two forms of stimulation and therefore assessing the effects of music. However, and important to the design of this study, all subjects will be blinded with respect to their group assignment; i.e., they will not know, until post-study debriefing, about the other arms of the study, and that the gamma-band stimulation is an active ingredient of the intervention.
Treatment:
Device: Gamma

Trial contacts and locations

1

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Central trial contact

Psyche Loui, PhD

Data sourced from clinicaltrials.gov

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