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.

Article

Culture

Film & TV

Psychology

4 September 2024

5 min read

Who’s missing from Inside Out’s internal family?

Where Riley’s writers could go next.

Henna Cundill

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

Cartoon characters of emotions at a control desk.

Inside Riley's head.

Disney.

Once upon a time a man got angry. Then he got angry at himself for the fact that he got angry, which of course didn’t help. As the Buddhist monk Thich Nhat Hanh would say, “If we become angry at our anger, then we will have two angers at the same time.” Similarly, there was an occasion when he got really nervous that he might make a mess of giving a speech, and his nerves became so overwhelming that he delivered the speech badly. A self-fulfilling prophecy, one might say.

These are not my examples; they are examples given by psychologist Richard Schwartz in his introduction to Internal Family Systems (IFS). This therapy (sometimes also called “parts therapy”) is a form of self-analysis in which participants learn to resist supressing or controlling their difficult thoughts or emotions, the different “parts” of their inner world, and instead adopt a posture of curiosity towards each of them. This posture allows people to be in a beneficial relationship to their emotional lives, rather than being ruled by them.

Fundamentally, the relationship that emerges is one of compassion, understanding that our thoughts and emotions have a job to do, even the uncomfortable or shameful ones. So, anxiety, for example, guards us from committing social faux pas, whilst joy helps us to keep hold of a sense that life is ultimately worth the living, no matter how hard things get. Even sadness and grief, as much as we fear being overtaken by such emotions, have an important role to play, for example by helping us to define what things and people are most valuable and important to us.

For those who haven’t seen the Inside Out films, the writers cleverly take this idea of the “internal family” of emotions and create five relatable characters that embody them – Joy, Fear, Sadness, Anger and Disgust. In the first film, we see how these characters interact inside the head of a little girl called Riley. They are helping her to hang on to her sense of self despite the upheaval she experiences in her outside world, when her family relocate to a new city, and she must settle in to a new home and school. In the sequel, we rejoin Riley as she enters the turmoil of puberty, and the five initial characters are abruptly forced to work alongside some new arrivals – the “teenage” crew of emotions: Anxiety, Ennui, Envy, and… the biggie… Embarrassment.

This Self is transpersonal – it exceeds the boundaries of who we each are as an individual person and connects us to something large.

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When he first developed IFS in the 1980s, Richard Schwartz was, by his own confession, a committed atheist, with what he describes as “a distain for religion”. Schwartz writes of the frustration he felt at that time when several Christians got excited about IFS in its early stages of development. His peer, Robert Harris, even went so far as to publish a book that set out a Christian version of the therapy. Initially, Schwartz felt the biggie – embarrassment – that his therapy was being taken up by Christians. However, as time went on, and as much as Schwartz tried to push aside the spiritual dimension of IFS, he increasingly found that spirituality could not be eliminated from the picture:

“As I used the model with clients through the eighties and nineties, increasingly they began having what can only be described as spiritual experiences. These vicarious encounters with the mystical profoundly affected my own spirituality and I became interested in Buddhism, Hinduism, Taoism, shamanism, Kabala – everything but Christianity.”

Over time, Schwartz’s antipathy to the relationship between IFS and Christianity began to wane. He saw how much he had been working on the basis of prejudice, limiting his own exploration of Christian ideas in response to some unhelpful encounters he’d had with a few heavy-handed fundamentalists. He made deliberate moves to engage with Christian dialogue partners across the breadth of the tradition and began to see how congruent IFS was with the teaching of Jesus. The posture of curious compassion towards oppressive and uncomfortable emotions that Schwartz was encouraging his clients to adopt was mirrored perfectly in the attitude that Jesus advocated towards “enemies” in the outside world: do not judge, instead seek to engage them with kindness, and work towards their healing.

In recent decades, Schwartz has come to rethink IFS as an integration of psychology and spirituality, rather than as a form of psychotherapy. He speaks of “spirituality” as an innate essence at the core of each person, which he calls the “Self”, and acknowledges that many of his more religious students prefer to think of this essence as “the soul” or “Atman” (the eternal self within Hinduism). And, whilst he still describes himself as fundamentally agnostic and is wary of making his own definitive religious commitments, he has come to agree that this Self is transpersonal – it exceeds the boundaries of who we each are as an individual person and connects us to something larger.

Screenwriting for a popular audience of all-faiths-and-none, it is perhaps unsurprising that the makers of Inside Out have thus far eschewed the deep and fascinating spirituality of IFS. Riley’s “sense of self” is at the centre of both films, but the way it is depicted implies that it is something that only comes into being at birth and exists entirely to regulate Riley’s engagement with the outside world. So far, there has been no exploration of more existential questions such as faith and eternity. However, the concept of the film is so brilliant, and for a complex idea it is so well executed, that I am sure we can look forward to many more Inside Out films to come. If that is the case, then just as Schwartz found himself going on an unexpected journey of spiritual exploration, the writers of Riley’s may well find themselves doing the same. I, for one, look forward to finding out what Riley discovers.