Article
Culture
Psychology
Weirdness
5 min read

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.
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
Attention
Culture
Digital
Easter
4 min read

Let your mind wander if you want to make the most of Lent

How to escape the cold and bitter tunnels of digital distraction.

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

A montage image places a woman, with eyes shut and hands on hip, at the centre of blurred circle of ground and tree branches.
Jr Korpa on Unsplash.

According to Blaise Pascal, the seventeenth century French polymath: all of humanity’s problems stem from man’s inability to sit quietly in a room alone. 

And now, four hundred years later, we have proof of how hard we find this. 

Researchers carried out an experiment, putting several people in a room on their own with nothing else to do but sit there for fifteen minutes.  A majority admitted feeling uncomfortable with little but their thoughts to console them.  The experiment was repeated, only this time an instrument was placed in the room that could administer an unpleasant electric shock.  In the fifteen-minute period, one in four women self-administered the shock to relieve the boredom.  Two in three men did. 

There is a chance we draw the wrong conclusions from social experiments because it is hard to get into the minds of others, but we can make a good guess here.  Our lives are over-stimulated.  To be alone in a room with our thoughts for any length of time is unusual to the point of weird.  We don’t need to live like this.  Our smartphones are the ‘rod and staff which comfort us’.  Any spare moment can be spent using TikTok, Instagram or Spotify.   

As people age, they tend to think the world is losing its attention span without realising that focus declines as we grow older.  But something seems to have changed in the last two decades.  A whole new digital architecture has been designed that wasn’t there.  It creates the buzz of the city but has gone up around us like skyscrapers, creating cold shadows and bitter wind tunnels of anger and distraction that block out the warmth.   

This new online city is intentionally designed to keep our attention; to prevent us from doing anything offline.  And it is working.  Between 2010 and 2020, globally, we consumed twenty times more information.  This is a colossal increase for our brains to cope with in the blink of an evolutionary eye.  Our minds have become less like the cool, white minimalist interior design people aspire to in life and more like the junk garage where broken and pointless stuff is tipped. 

According to Johann Hari in Stolen Focus, we tend to blame ourselves for this state of affairs.  After all, if we tell others our smartphone is distracting us, the answer we get back is to turn it off.  While we can take steps like this, Hari says it lets tech companies off the hook.  As with shopaholics, there is individual responsibility, but there is also the edifice of consumer capitalism designed to make us buy more stuff or absorb more information. 

Mind wandering is, paradoxically, a form of attention.  It is the space where we solve the puzzles of our lives, joining dots we had missed, colouring in a picture to bring it alive. 

When we consider what it means to follow Jesus today, we often do not appreciate what tech is doing to us.  The gains are obvious – having the world at our fingertips, being able to talk to family and friends in an instant – but the losses remain obscure.  How does digital distraction affect reading of the Bible and a commitment to prayer?  There is little research on this, but we may be giving God less devoted attention than before.  In flitting from one source to another, like a fly on a hot summer’s day, we do not stay long enough in one place to discover if God is waiting for us there. 

Prompts from God frequently emerge outside the thinking of the Church.  A cohort of Silicon Valley tech wizards has come up with the idea of the digital Sabbath, where people spend one day a week unplugged.  Though describing themselves as not especially religious, their manifesto practically drowns in religious tradition.  They advise people to: 

  • Avoid technology 
  • Connect with loved ones 
  • Nurture your health 
  • Get outside 
  • Avoid commerce 
  • Light candles 
  • Drink wine 
  • Eat bread 
  • Find silence 
  • Give back 

It is sabbath re-imagined for the digital era.   

Johann Hari also lists some practical actions that can be taken, like staying on task and limiting exposure to social media in particular as it is shown to be bad for mental health in large doses.  We should also allow our minds to wander.  This does not contradict the argument about not losing focus.  Mind wandering is, paradoxically, a form of attention.  It is the space where we solve the puzzles of our lives, joining dots we had missed, colouring in a picture to bring it alive.   

When the prophet Elijah meets with God at Mount Horeb, there is first a strong wind, then a powerful earthquake and lastly a raging fire.  But God does not reveal himself in these gripping phenomena.  He is to be found in the sheer silence which follows; in the whisper of a voice. 

The sheer silence today is broken by the familiar buzz of a news feed or social media update – or the shock of an electric current.  The moment we move out of earshot of the faint audio of the divine.    

Join with us - Behind the Seen

Seen & Unseen is free for everyone and is made possible through the generosity of our amazing community of supporters.

If you’re enjoying Seen & Unseen, would you consider making a gift towards our work?

Alongside other benefits (book discounts etc.), you’ll receive an extra fortnightly email from me sharing what I’m reading and my reflections on the ideas that are shaping our times.

Graham Tomlin

Editor-in-Chief