Tag Archives: fragility of hearing

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Music as a Memory Trigger

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Friends of singer Tony Bennett noted that his last years with dementia did not deter him from performing his music.

[Music remains unique in its ability to refire memories that have been dormant.  Perhaps it is a trigger to important “autobiographical memories.”] 

It seems impossible to consider the vital sense of hearing without celebrating the special phenomenon of music, which has a lock on many of us. Watch a two-year-old child move to the beat of a song and we are reminded that the ear readily learns to love music’s embedded rhythms.  Often minimized as a pleasant addendum to life, music is more accurately described as central to its enactment. It is undervalued if it is seen as anything less than a prime generative source for refreshing the human spirit.

All of this was eloquently reinforced in Michael Rossato-Bennett’s 2014 documentary, Alive Inside. The filmmaker initially signed on for just one-day to film an effort to reclaim an older American lost to dementia. The experiment soon captivated the filmmaker and became a full-time project.

Most of the film’s subjects were selected by social worker Dan Cohen, who discovered that many seniors reconnected with their own lost memories when reintroduced to the music of their youth via a compact player.  For one older gentleman it was simply enough to hear the restless swing of Cab Calloway through earbuds to lift a fog of non-communication.  Beyond kick-starting lost memories, the music brought the man alive emotionally. He suddenly had access to his distant past as an accomplished dancer and musician. It was the “mental glue” that held his old self together.

The idea of a wearer of a set of headphones experiencing private ecstasy is hardly new.  But it means so much more when the person listening was thought to be little more than a piece of human furniture. It turns out that music is the perfect vehicle for reclaiming memories thought to be gone forever.  Neuroscientists have noted that music triggers well-named “autobiographical memories” that can be tapped in almost no other way. In the words of Australian researchers Amee Baird and William Thompson, music can be “an island of preservation in an otherwise cognitively impaired person.”  Songs “powerfully engage the frontal regions of the brain, which are typically spared from damage.”  The neural pathways that relay music are among the most durable in the brain. Friends of singer Tony Bennett noted that his last years with dementia did not stop him from coming fully engaged again when asked to sing his music.

The same was true in Rossato-Bennett’s documentary when headphones were placed on Mary Lou Thompson, a younger woman perhaps in her early sixties with early-onset Alzheimer’s Disease. Even recognizing the purpose of an elevator button was difficult. Thompson’s husband could only marvel at the sight of his wife, earbuds in place, slowly unfolding her lean, tall frame to glory in an old Beach Boys song she obviously never forgot. It was like watching a time-lapse image of a closed flower opening to the sun. I’ve seen very few screen documentaries that so dramatically revealed a person’s instant transformation.

There may be reasons to lament the mobile phone as a device that undercuts the value of direct and immediate experience. But there can be no doubt that a portable music player enriches us by being a potent memory trigger.

Even the crusty innovator Thomas Edison sensed music’s power to mesmerize. Listeners at the 1893 Columbian Exhibition in Chicago clamored to hear distant voices and songs on his audio cylinders, often through rubber ear tubes. It was then a miraculous idea that voices could be captured in midair to be heard years later. Even though he had become deaf, Edison seemed to understand the regenerative possibilities of sound for rebuilding the human spirit. It’s no surprise he identified the humble phonograph as his most satisfying invention.

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The Costs of the Din Add Up

We’ve turned the ‘soundtrack of our lives’ into one long visit to the land of auditory commotion.

As readers of this blog will know, sound is a current preoccupation.  I’m not sure if its a curse or blessing, but once a writer starts down the path of a new project, its hard to stop. Everything is seen through the lens of the work.

A new book on the noise in our lives by David Owen (Volume Control: Hearing in a Deafening World) is a timely reminder of how much racket we tolerate. The modern frenetic existence isn’t just a function of being busy.  It’s also an effect of living full time in a din of disruptive noise. We turned the soundtrack of our lives into one long visit to the land of auditory commotion. It’s the kind of effect you expect entering a busy pre-school or sharing the street with a group of motorcyclists out for a Sunday ride. The areas  surrounding busy airports are especially hazardous to one’s ears and mental health.  Huge amounts of fuel are thrown into a jet engine that compresses and then explodes it.  Even the ostensibly quiet ones are noise demons. It’s din easily passes the 85 db threshold that can cause permanent ear damage over just a few hours.  And the pummeling of the air by helicopter blades overhead is even more brutal: the rough equivalent of watering orchids with a fire hose.  As Owen notes, virtually all of us arrive at adulthood having done some irreparable damage to our hearing.

Below the obvious case of airports, what are the sources of ambient noise that most of us experience on a daily basis?  The list is long: hair dryers, leaf blowers, snow blowers, tree cutters, high aircraft on approach to a distant airport, helicopter traffic, heaters, refrigerators, microwave ovens, mixers, radios and televisions that are often left on to become aural wallpaper, auto and motorcycle mufflers—some tuned  to be loud, vacuums, car alarms, emergency vehicles, general traffic, internal combustion engines, truck pick-ups and deliveries, copying machines, nearby construction equipment, exhaust fans, truck ‘engine braking,’ Muzak, cooling fans, microwave ovens, video games, bars and restaurants, live concerts and sporting events, domestic pumps, clothes and dish washers, lawn mowers and garden equipment, elevators, subway and truck brakes, the impossible-to-block long waves from a bass speaker, nearby foot traffic, portable generators, barking dogs, phone rings, cooling systems for server centers and industrial plants, garages for auto repairs and more.

Of course we don’t confront these sources at once.  But a good guess is that a city resident will experience most of this noise in the short time frame of a few days. And some of this noise pollution—traffic, appliances, planes, lawn equipment—is ubiquitous. Their sounds almost never go away.  That is, until we are old.  Then, creeping deafness and tinnitus leave the marks.  Deafness is one of the great and mostly undiagnosed causes of depression and withdrawal in older Americans.

You can audit your own environment with a simple test.  Turn off the master switch in the electrical panel where you live. You’ve eliminated most of your own noise sources at that point.  But how much still seeps in from your neighbors and the proximate environment?  I live in the country on a one-lane road surrounded by woods. By all accounts the noise level in my home should be below 20 db.  But 30 db is about as low as the sound levels go: a function of distant air traffic, a noisy fan in a cable controller box that can’t be turned off, the noise of a heater, and a new “quiet” refrigerator in a distant room that carries the sound of its motor vibrations through the wood structure of the building.  100 years ago, that 20 db mark would have been easier to achieve.