Olfactory senses

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Olfactory senses
« on: July 18, 2020, 07:52:32 pm »
As I walked toward the grocery store and read the sign that says “Mask Required to enter” it annoys me since now I have to drive back home to get my mask. I return to the store and my mood is not pleasant because of the mask annoyance. As I walk past the fruit and vegetable section I can smell the peaches, apples, and other fruits. My mood immediately changes, the smells of the fruit changed me to a more pleasant attitude, I had no choice it just happened. The reason for that is the olfactory bulb sends olfactory information to be processed in the amygdala, the orbitofrontal cortex and the hippocampus where it plays a role in emotion, memory, and learning. The main olfactory bulb connects to the amygdala via the piriform cortex of the primary olfactory cortex and directly projects from the main olfactory bulb to specific amygdala areas. The amygdala passes olfactory information on to the hippocampus. The orbitofrontal cortex, amygdala, hippocampus, thalamus, and olfactory bulb have many interconnections directly and indirectly through the cortices of the primary olfactory cortex. These connections are indicative of the association between the olfactory bulb and higher areas of processing, specifically those related to emotion and memory.

So smells and emotions are linked and I quickly thought to myself are there artificial noses that are small enough to be used in robotics? I found this article about the development of low-cost chips that actually smell!

Here's a video demonstrating an eNose at CES 2020

CES 2020


silent one

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Re: Olfactory senses
« Reply #1 on: July 20, 2020, 11:39:46 am »
This would be really useful in some futuristic 3d food printing device,  which scans food in with the sensors, and prints it back out again, with the actuator,  or cooking end it has.