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.

Column

Culture

1 December 2023

4 min read

Depreciating human life: a year-end market report

The cold currency of trading hostages repels George Pitcher, who explores the casual acceptance that some lives are biddable against lives of intrinsically higher value.

George Pitcher

George is a visiting fellow at the London School of Economics and an Anglican priest.

Three men huddle around a laptop and talk animatedly.

Israel's Prime Minister monitors the recent hostage exhchange.

Prime Minister's Office, Israeli Government.

There is something peculiarly horrific about the barter of Israeli hostages held in Gaza by Hamas for Palestinian prisoners in Israel. And it isn’t only the unimaginable suffering these innocent civilians have to endure somewhere on an unknown scale between life and death.

It’s also that their lives are reduced to their commodity value. Hostages are assets to be traded in the market for peace, not human beings. It’s difficult to write this, but it’s almost as if three dead hostages, including a 10-month-old baby, said to have been killed in an Israeli airstrike, have lost their asset value. These ones are no good – they don’t work anymore.

Negotiating the release of hostages for peace terms is as old as the Hebron Hills. An Egyptian pharaoh once released his enslaved Israelites to Moses in return for the lifting of the plagues being inflicted on his people. But there is something of the neo-liberal free market in the way that post-modern conflict resolution uses human life as a currency of exchange.

Ryan Gilfeather wrote excellently here how this material valuation offends against the human dignity in which the divine invests. The imago dei that humanity bears, if you like, is not to be reduced to a bounty, a financial liability or an asset value.

As a consequence, human life is tradeable. Yes, it has value, but its share price can fall as well as rise.

I’d want to take that a step further, to ask how that depreciation has come about with such ready acceptance and to note a couple of instances where the mentality of the trade in human existence has become a natural process of marketing.

The attitude, I think, has its roots in the Enlightenment of the 17th and 18th centuries. Don’t get me wrong: This is no censure of progressivism. Universal literacy, healthcare, scientific endeavour and the birth and growth of democracy are all very good ideas indeed. But the Enlightenment also brought the capitalist mindset to almost every area of human existence. Our lives, in many contexts, became actuarial.

This is not my idea. The great, perhaps the greatest, Christian mind of the 20th century, C.S. Lewis, railed against how Fascism and genocide were the bastard offspring of our common-law marriage to progressive thinking, in that traditional values of human existence were now only there to be debunked.

I am indebted to Lewis’s biographer, A.N. Wilson, for this. In Lewis’s book, The Abolition of Man, he writes of “The belief that we can invent ‘ideologies’ at pleasure, and the consequent treatment of mankind as mere specimens… begins to affect our very language.’

Lewis was no white-knuckled reactionary, but he did recognise that the values and virtues of ancient religious thought were binned at humanity’s peril. We had begun to understand the price of human life, rather the the value of it.

This is not to suggest for a moment that the ancient world was a nirvana (or even a Narnia). The Garden of Eden was lost at the beginning of time, not at the Enlightenment. Brutality, slavery and cruelty are part of our post-lapsarian world.

It’s just that religious virtue used to be a bulwark against such things. As a consequence, human life is tradeable. Yes, it has value, but its share price can fall as well as rise. By the 21st century, we can look behind us to see how that has played out. Allow me to elucidate a couple of examples of how casual is our acceptance that some lives are biddable against lives of intrinsically higher value.

The first is the almost clownishly implemented government policy proposal to redeploy migrants to the UK to Rwanda. Almost clownishly, because it would be funny if it didn’t involve a trade in human misery, the idea that desperate people endangering their lives and those of their families in small boats can be made someone else’s problem to sort out, simply by looking away. These people are worthless, you see, because they are not us and only we belong here (whoever “we” may be). The idea is that we pay Rwanda per capita to take them, rather as we might send our plastic refuse to China for landfill.

A second example of merchandising human life I would cite are the repeated attempts to have assisted suicide, or voluntary euthanasia, legalised in the UK, rather than enhancing palliative end-of-life care. These proposals depend entirely on the state legislature endorsing that some human lives aren’t worth living and are disposable.

At base, it’s the same principle as the Rwanda policy, other than we’d be killing them, or assisting them to kill themselves, rather than disposing of them in a central African waste-bin.

These are the “anythings” that humans believe in when they stop recognising the sanctity of human life. The value equation used for Gazan hostages is on the same continuum as the human trafficker and the politician who tries to stop him, or the calculation of the cost to the state and their family of a terminally ill patient offered an alternative way out.

It’s just that these equations have become invisible to the naked eye. We don’t see them anymore. But, I’d suggest, for Christ’s sake we’d better start looking.