Why smell jumps the queue when it comes to memories

Smells hardwire deep into the brain, writes Henna Cundill, as she explores why they jump-start such vivid memories.

Henna Cundill

Henna is a researcher with the Centre for Autism and Theology at the University of Aberdeen.

An autumnal scene of a church yard and church framed by leafless trees.

'The smell of dust and damp stone will always cry “safety!”'

Jakub Pabis on Unsplash.

When I was a 22-year-old undergraduate my mother died quite suddenly. I can't remember the name of the undertakers we used, nor the chaplain who took her funeral. I can no longer visualise what any of their faces looked like. I know I visited the chaplain’s house to plan the funeral, but I can't remember exactly where that house was. What sticks is that the day of the funeral was a sultry summer's day, and both the chaplain and the undertakers smelt of perspiration. To this day there are moments where I catch that same whiff of man-sweat in some other location, and for a fleeting second, I am a bewildered 22-year-old once more.

Here is another memory. I attended a tiny, rural Church of England primary school in the middle of England. At the end of each school year, all of us donned our little Wellington boots, which smelt faintly of slurry (since this was dairy-farming country) and sweaty feet. Then we lined up in a crocodile and trudged through the bluebell-wood (damp leaves) and skirted the edge of fields (silage, which stings the nose) covering the mile or so between our school building and the village church.

We would enter the church grounds through the back field, hurrying through an eerily muffled graveyard with tombstones towering far above our heads and the grass disturbingly lumpy beneath our little feet. To the chidings of “Quickly!” and “Quietly!” we children scurried down a gravel path, away from this unsettling place of death, to reach the cool sanctuary of a little church, and the comforting smells (for me, at least) of damp stone and dusty hymnbooks.

Others may not have the same associations, but for me the smell of dust and damp stone will always cry “safety!” and the reassurance that “there are no ghosts in here!” in contrast to that troubling graveyard. From death to life. Yet, at the same time, getting stuck with my nose close to some man’s whiffy armpit on the Tube will forever insinuate that I am just a child pretending to be a grown-up, out of my depth, overwhelmed with one thousand decisions to make (“What flowers do you want for her coffin?”) and no-one to advise. In the midst of life, death again.

On reflection I will know that my emotions are being manipulated by my nose, in ways which are more or less than helpful depending on the circumstances.

Of course, I am not 22 years old and lost anymore, no matter what that man’s armpit tries to tell me. My rational mind knows better, but my rational mind doesn’t get a say – or doesn’t get the first say anyway. This is because smell is the only one of our senses that bypasses the thalamus (the brain’s ‘filtering gate’ that decides which part of the brain needs to respond to sensory input) and goes straight to the limbic system, where emotional memory is stored.

Sometimes it is very obvious that this is taking place, such as in the examples given above. On reflection I will know that my emotions are being manipulated by my nose, in ways which are more or less than helpful depending on the circumstances. But it can happen in more subtle ways too. Supermarkets infamously pump out smells to influence our buying choices, and we’re trying to sell our house right now, so we’ve been brewing a whole lot more coffee than we ever usually would.

Intriguingly, scientists don’t really know why the human sense of smell jumps the queue when it comes to cognitive processing. There are biological theories, such as that the smell of predator could wake up our ancestors while they were sleeping and/or could allow them to follow a scent trail quickly when fleeing danger or seeking food. There are social theories too, such as that we don’t have a lot of good words to describe smells, so the brain just doesn’t bother trying to analyse them. Whatever the truth of the matter, the reality is that (whether we like it or not) our noses are an emotional trip-hazard.

When I walk through those great oak doors there is a moment, a glitch in the matrix, when the unmistakable smell of church hits my nose. Dust, damp… a little hint of mouse.

I can’t help wondering what this tells me about my religious practice. Do I go to church because I have made a cognitive decision to worship God each Sunday? Or do I go to church because I am following my nose, getting away from a world full of armpits and responsibilities to a place where I am a seven-year-old girl, all gingham dress and wellies, feeling safe. If so, does it matter?

Truth is, my mind can give me a dozen reasons not to go to church every single week. In fact, two dozen reasons. More. It has always been a busy week; I’m always behind on work. The house always needs a sort out and the car is never washed. But because certain congregation members are normally counting on me for certain things, and because I’m still pretending to be a grown up, I typically drag myself out the door, and off to church I go.

And week on week, without fail, when I walk through those great oak doors there is a moment, a glitch in the matrix, when the unmistakable smell of church hits my nose. Dust, damp… a little hint of mouse. My body registers this before my mind; my shoulders drop a little of their tension. Even if it’s just for a fleeting moment, I start to feel that I know for sure what is absolutely real in my life and what is just pretend.

Is this knowledge irrational – since it doesn’t come from the cognitive part of my mind? Or is there a God who knows that the cognitive part of my mind sometimes tells me all sorts of untrue and unhelpful things. Is there a God who is choosing to reach out to me in more subtle, more ancient ways?

I can only wonder if I have been following my nose all this time, without even noticing. Drawn along by an ancient scent trail that leads me time and time again…this way…and that way…until I reach a place where there is safety, and bread.

Review

Books

Culture

Freedom

Politics

11 December 2024

1 min read

All this can be yours: the momentum that drives mafia states

Once abhorred opinions gain traction among the distracted nursing grievances.

Simon Burton-Jones

Simon is Bishop of Tonbridge in the Diocese of Rochester. He writes regularly round social, cultural and political issues.

Preisdent Putin stands behind a lectern with a gold door and Russian flag behind him.

What is Putin thinking?

Is there a new Cold War today? This assumption, spurred by the war in Ukraine, is challenged by Anne Applebaum in Autocracy, Inc. (Penguin Random House, 2024). Instead, she argues, there is a growing group of autocratic nations where ruling elites exercise staggering levels of corruption, accumulating wealth, eviscerating the common good and suppressing any meaningful dissent. There is rule by law rather than rule of law, where the courts become the means by which brutal, cynical state power is employed to destroy and imprison opponents.

The Cold War was underpinned by ideology, but autocratic states today support one another through logistics, resources and propaganda despite big differences in outlook. Iran, North Korea, Venezuela, China, Russia and Zimbabwe, to name a handful of autocratic nations, share little by way of common ideology, except the desire of their dictators to stay in power, both to ensure their wealth and to protect themselves from legal action. The fig leaves of religious beliefs and nationalism are often used in different combinations but fool few.

If there is a common denominator for these autocracies, it is the wish to scrap the post-war settlements – the institutions and laws that have marked global affairs since. The body of existing international law is a particular target, as its dismantling immunises dictators against judgment.

Framing the present global picture in clear, criminal terms like this is helpful. Mafia states exist, and they are growing in influence. But it is too easy for others to place themselves on the side of the angels. These kleptocracies have been enabled by corporate bodies elsewhere. In the UK, London is host to lawyers, accountants, bankers and PR experts who have helped to launder money for corrupt elites. They argue their support is legal, but it is also amoral; such is the professional framework of some of the biggest names in law and finance. London’s property market, like several other global capitals, has been grossly distorted by the laundering of foreign money, to the detriment of working people trying to afford their own homes.

At the end of the Cold War, there was a widespread sense that liberal, democratic values had prevailed and it only remained for this dye to leak into the fabric of remaining nations. Not only is this not true today, if anything the momentum is with autocratic values infecting democracies with their ways. The global technology revolution has assisted this, as once abhorred opinions and positions gain traction in the minds of distracted people with grievances, real or imagined.

There is a special hypocrisy when criminals who have stolen billions and murdered thousands claim to speak for God.

The late Chief Rabbi, Jonathan Sacks, said the key question for the new century was: who speaks for God? If the suggestion was that this is a question different religious traditions need to answer in ways that support our common humanity, we now have no shortage of dictators who say they speak for God. Their claims that other regions of the world are godless and degenerate are made time and again. Like Goebbels, they know that the endless repetition eventually wears people down until phrases become believable. No-one who cares about God’s character would claim their society reflects his character well; there is injustice, hatred and violence everywhere. But there is a special hypocrisy when criminals who have stolen billions and murdered thousands claim to speak for God.

When Jesus faced his life-defining temptation in the wilderness, the devil showed him the kingdoms of the world and promised they would be his if he ‘turned’. He also tempted Jesus to turn stones into bread. Power and wealth, the very trappings coveted by the world’s dictators. And his final temptation: to throw himself from the roof of the Temple, only to be saved by the angels. To surround himself with a loyal cadre of officers sure to protect his interests at all times.

Instead of the highway to autocracy, Jesus took the uneven and winding path of service to others. One of self-denial, deprived of the material wealth made available by his elevated position. This is the human standard we have been set and it compels self-reflection, not boasting and threats.