The impact of sound in Vagus Nerve Stimulation

To understand the works of internal healing, we need to observe the correlation between the stimulation of the human brain and its impacts in the nervous system. In this post we'll share with you a brief scientific description of the parts involved and how VibroAcoustics facilitates this process.


The Default Mode Network

The Default-Mode-Network, is responsible for regulating the activation and healing of the human body's internal organs. This process is observable in two distinctive nervous systems: Sympathetic, and Parasympathetic.

Intuitively, we assume that the sounds of nature have a relaxing effect in our bodies. Science has studied the stimulation of the DMN through the means of sound therapy, and found quantifiable evidence of this assumption: Exposure to nature sounds activates the parasympathetic nervous system, and in turn, promotes healing.


Homeostasis and sound exposure

Homeostasis is the ability to maintain a relatively stable internal state that persists despite changes in the world outside. All living organisms, from plants to puppies to people, must regulate their internal environment to process energy and ultimately survive.

In modern life environments, the exposure to constant noise often overworks our senses, perpetuating stress and impacting our physiological and psychological health - Hahad, Prochaska,Daiber and Münzel, 2019

The soundscape of natural environments invites the organism to maintain the homeostatic state -  Yu, Disha, and Qiuyan, 2019


The Vagus Nerve

The Vagus Nerve is the cranial nerve which interfaces with the parasympathetic control of the heart, lungs, and digestive tract.

An enhanced vagal tone gives rise to a stronger social engagement system and is associated with pro-sociality. With a stronger vagal tone, a person is more connected to their emotions and is more adaptive to respond and react to external stimuli - Steven W. Porges, 2007

The coherent activity of the  vagus nerve is proposed to foster capacities required by the  organism to adapt to external demands and internal needs, for instance, during social interactions - Taborsky & Oliveira, 2012


The measurable output, HRV

Heart-Rate Variability is the variation in the interval between heartbeats. It is a standard metric to study the cardiac vagal tone - Beffara et al., 2016 - and has been proven to be an indicator of parasympathetic activation - Gerritsen & Band, 2018

We are currently in the process of conducting a case study to measure the longterm effects of our VibroAcoustics sound therapy using HRV measuring technology, and are excited to share this information with you very soon.


Healing with Music

The Vagus Nerve can be stimulated through a process called High Amplitude Low Frequency-Music Impulse Stimulation, in which vibrations generated from low frequency-music are applied to the abdomen. HALF-MIS is a widely used, alternative treatment method for depression - Sigurdardóttir et al, 2019

At the VibroAcoustic Studio, we create experiences that leverage the technology of our vibrational wooden floor to stimulate and relax the Vagus Nerve, activating the Parasympathetic nervous system, healing the body, and promoting homeostasis.