The Sounds of Silence and Your Own Mind

The first thing that came to mind is that what we mean by “silence” really isn’t silent, what is really meant is that there is an absence of human voice pulling at our limited capacity for attention. Cognitive load is probably a real, if variable, limit on human cognition and the nature of hyperconnected information society is that all too frequently we are -and feel – “overloaded”.

When human voices are absent the “background” environmental noise comes “forward” , natural (wind through trees, animals etc) or mechanical (various humms and clicks) that we unconsciously tune out as a matter of routine focusing on conversation or distracting hearsay, broadcasts and so on. The processing in the brain is significantly different depending on what kinds of sounds you are listening to, for example:

1. Listening to Music

2. Listening to Language

3. Listening to unpleasant sounds (nails on chalkboard etc.)

So eliminating human speech from your environment but not hearing (earplugs) itself allows other regions of your brain to become more active than usual, depending on whatever else you may be doing at the time (walking, chopping wood, smelling a flower, scanning the horizon and so on).  Your brain’s performance and how it varies when thinking under conditions of different combinations and levels of sensory stimuli – “crossmodal processing” – is not yet well understood as research is in early stages of investigation.

I will speculate here that what is important for enriching your thinking is that taking your brain out a linguistic-saturated environment (let’s include the “soundless noise” of intruding textual symbols as well from smartphones, iPads, laptops)  gives it an opportunity to operate differently for a time and establish new neuronal network patterns of activity. Various forms of meditation – which involves both silence and an intentional modulation of attention – also  alters normal  brain activity.

I will now go further out on a data-free analytical limb and hypothesize that making a practice of “silence” and/or meditation might improve your thinking by making moments of creative insight more likely. Studies on insight tend to show that as a cognitive event, insight  comes about as a kind of a “pulse” of activity and relaxation in the brain:

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