In a study conducted by Laura et al., significant changes were observed in the
olfactory cortex and Lewy body pathology.
The gain then prompts a positive feedback cycle that generates the pervasive AM patterns as different frequencies from the bulb, nucleus, and
olfactory cortex interact (69-81).
Functional imaging of the human
olfactory cortex by magnetic resonance imaging.
These include 1000 protein receptors, 2,000,000 sensory neurons, 2000 glomeruli, and 40,000 mitral cells which in turn connect with the
olfactory cortex. These are highly organized in their placement and in the arrangement of circuits to detect, code, transmit, and decode electrical signals representing a possible 10,000 odors.
But actually identifying the odor probably occurs in the
olfactory cortex, deep inside the brain.
Desmond et al., "Sniffing and smelling: separate subsystems in the human
olfactory cortex," Nature, vol.
The researchers used functional MRI techniques and cutting-edge, pattern-based analysis to identify the existence of predictive coding in the
olfactory cortex of the brain, where the sense of smell is housed.
However, researchers still knew little about how the brain processes odor information in the
olfactory cortex, a region in the temporal lobe, which extends along the sides of the brain.