How scent brings back memories

Walk into an old house and before you've noticed the wallpaper, the paintings or even the furniture, something else has already begun its work. Beeswax polish. Old books. Lingering wood smoke. Lavender tucked into a linen cupboard. Fresh coffee drifting from the kitchen. Scents reach us before anything else, and they have a profound effect on the way we feel.

The scientific explanation lies in the neural architecture which carries our sense of smell. Volatile molecules stimulate the neurons inside our noses which send electrical signals to the olfactory bulbs in the brain. Crucially, these bulbs are positioned right next to the amygdala, where emotion and emotional memory is processed, and very close to the hippocampus, which is involved in associative learning and other forms of memory. Information about smell, unlike input from the other senses, is relayed first and foremost to brain areas instrumental in emotion and memory. It all happens literally faster than the blink of an eye.

Science cannot describe what happens next. Even words can hardly describe it. Long before psychologists started studying brain scans, novelists and poets understood that fragrance could unlock emotions and memories differently from the other senses, but the process was extremely hard to explain. Proust came close to it, although the morsel of madeleine that conjured up a whole new state of consciousness in the narrator of Swann's Way was actually dunked in tea and tasted rather than smelled.

The famous madeleine moment does not merely remind the narrator of his childhood; it opens a door into a forgotten world, allowing the past to flood into the present with astonishing clarity. The moment is less about nostalgia than revelation. A familiar scent becomes a key, unlocking an earlier version of the self.

Patrick Süskind takes the idea that smell reaches us before reason has a chance to intervene, and develops it to extraordinary lengths in Perfume. He describes smell as 'the forgotten language,' humanity's deepest and most instinctive means of communication. The story is violent and unsettling, grotesque at times, but it rests on that intriguing thought.

The novelist Colette wrote about the smells in her childhood home with deep emotional attachment. Her garden frock smelled of household soap, floor wax, and violets. Her mother's scents were laundered cretonne, irons heated on the poplar-wood fire, and lemon-verbena leaves which she rolled between her palms or thrust into her pocket. Colette reminds us that fragrance belongs as much on linen, clothes and in cupboards as on the skin. A house, in her world, is scented gradually rather than sprayed into submission. The smell of folded sheets, lavender sachets and well-loved rooms becomes part of everyday life.  Nearly everyone who has read Daphne du Maurier's Rebecca can remember the azaleas, rhododendrons, damp woods and sea air of Manderley. The estate seems to breathe through its scents. “If only there could be an invention that bottled up a memory, like scent…”

To recreate those feelings at home, try Linen Press and Woodland Garden.

Today's home fragrance products are often presented as remedies that influence mood. Lavender promises calm. Citrus offers energy. Peppermint fights fatigue. These associations are perfectly valid, but they may overlook something more profound. We buy reed diffusers and room sprays to make our houses smell beautiful, and when we borrow the essences of flowers, fruits, spices and woods, the things we are trying to capture are often elusive and intangible: comfort, belonging, friendship, joy. The best home fragrances do smell beautiful, but they also have the power to transport us.

Which scents make you feel most nostalgic? Browse the collection.

Then they in turn become scents we remember, quietly attaching themselves to ordinary life until they became inseparable from the people we love and the places we call home. They become companions to ordinary moments: conversations around the kitchen table, rainy afternoons with a book, family celebrations, solitary evenings, the changing rhythm of the seasons. Years later, all it may take is the faint scent of nutmeg, or honeysuckle, or freshly cut grass to summon the moments back again. A room, a voice, a face, a season or a life, briefly restored.

Perhaps those are the real roles of home fragrance. Not to mask unwanted odours or even to create a mood, but to summon forgotten places, transport us across time, and occasionally restore a part of ourselves we thought had been lost. Not simply to scent a house, but to enrich the memories we make there and, in time, to carry us gently back to them.

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