Dr. Bob Datta
speaker
91 appearances
1 recordings
1 series
first heard May 2026
last heard 1 May
Dr. Bob Datta’s voice in public audio — every appearance, attributed to the second.
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recordings per month · last 12 monthsRecordings per month over the last 12 months — 1 in all, peaking in May 2026 with 1.
Appearances
Thanks for having me.
Yeah, we want to understand how smell is organized in space within your nose.
And that's because smell has long been thought not to be organized in space.
Most of your other senses take advantage of space to organize what's important to them.
So if you think about hearing, your cochlea has actually a map of frequency within it where neurons in your cochlea that are near to each other respond to similar frequencies.
And those neurons that are far away from each other tend to respond to different frequencies.
Exactly.
It's this beautiful continuous map.
That's exactly right.
And similarly, your eye in the retina contains a continuous map of space.
And so people have long wondered whether or not there's a similar sort of spatially organized map.
for smells in your nose.
And the way you'd look for that is by looking at the pattern of expression of smell receptors.
So these are receptors that are dedicated to interacting with particular smells in the world.
Mice have about 1,000 of these.
Creams have more like 400.
And these receptors were first identified, believe it or not, 35 years ago.
And so for many, many years now, people have wondered whether or not the receptors that detect smells in your nose are organized in space in much the same way that information about frequency is organized in the cochlea.
And for a long time,
People thought there was no real spatial organization to smell.
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