Smell of a place - An evolutionary perspective


 

Interesting talk, but more than the management idea, what attracted me was the use of the term, 'smell of the place'. Nothing is more primordial, deep rooted than the sense of smell. Neuroscience has shown the smell has a strong link to emotion and long term memory. Ever wondered why the smell of the same talcum powder we were showered with as a child (or to our children), evokes the same old memories? I recently used the old green Cinthol soap that comes in a red wrapper, which we used as children and the same childhood memories came back in a rush. 

 The reason is scents bypass the thalamus and go straight to the brain's smell center, known as the olfactory bulb. The olfactory bulb is directly connected to the amygdala and hippocampus (the brain's main memory center), which might explain why the smell of something can so immediately trigger a detailed memory or even intense emotion.

 But why does smell get this elevated status over other senses in our brains? Some think it goes back to the way we evolved: Smell is one of the most rudimentary senses with roots in the way single-celled organisms interact with the chemicals around them, so it has the longest evolutionary history. This also might explain why we have at least 1,000 different types of smell receptors but only four types of light sensors and about four types of receptors for touch.

 Another reason why the term, 'smell of a place' caught my attention is that when one breathes in air in a room, the first sensory perception is of course the smell, but as the air fills the lungs, it becomes prana or the life-force. Nothing is more vital than prana. It is a life force that we not only take in but also give out. In this sense it is very organic and basic to our very existence. 

 So when Prof.Sumantra Ghosal used the term, 'smell of the place' it actually means much more than just the phrase. It has far deep rooted existential connections.

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