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NeurogastronomyHow the Brain Creates Flavor and Why It Matters$
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Gordon Shepherd

Print publication date: 2013

Print ISBN-13: 9780231159111

Published to Columbia Scholarship Online: November 2015

DOI: 10.7312/columbia/9780231159111.001.0001

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Images of Smell

Images of Smell

An “Aha” Moment

Chapter:
(p.66) Chapter Seven Images of Smell
Source:
Neurogastronomy
Author(s):

Gordon M. Shepherd

Publisher:
Columbia University Press
DOI:10.7312/columbia/9780231159111.003.0008

From the olfactory receptor cells, the pathway to smell perception in the brain passes through a series of regions: the olfactory bulb, the olfactory cortex, and the orbitofrontal olfactory cortex. This chapter focuses on the olfactory bulb where the initial processing steps take place. The olfactory bulb is shaped like an incandescent light bulb, sticking out in front of the frontal lobe of the brain. Here fibers from the several thousand receptor cells, all containing the same type of olfactory receptor, converge on a single site, called a glomerulus (glom). Through the pattern of its input and the interactions between its neurons, the olfactory bulb creates the code for representing the stimulating molecules.

Keywords:   smells, olfactory receptor cells, smell perception, human brain olfactory bulb, glomerulus, receptor cellls

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