Exercise Two: Perception and Cognition Research- by Cathy Lai
Do you know!?The olfactory system, which senses and processes odors, is one of the oldest and most vital parts of the brain. For most animals, it is the primary mode of communication and influences many important functions, including reproduction and taste. Scientists are just beginning to learn how the olfactory system works.
The nose contains specialized sensory nerve cells, or neurons, with hairlike fibers called clilia on one end. Each neuron sends a nerve fiber called an axon to the olfactory bulb, a brain structure just above the nose.
Odor molecules entering the nose are thought to be recognized by receptors found in cilia of olfactory neurons. Neurons with specific receptors are arranged randomly within zones in the olfactory lining of the nasal cavity. Signals from neurons with the same receptors converge on structures called glomeruli in the olfactory bulb. The pattern of activity in these glomeruli creates a pattern or code that the brain may interpret as different odors. The information is carried by nerve fibers to many brain regions, where it affects thoughts, emotions, and behavior.
Unfortunately I didn't come to the first class due to the ticket. I tried following the description and hopefully I'm on the right track for this exercise.
resource:http://www.sfn.org/index.cfm?pagename=brainbriefings_smellandtheolfactorysystem
The nose contains specialized sensory nerve cells, or neurons, with hairlike fibers called clilia on one end. Each neuron sends a nerve fiber called an axon to the olfactory bulb, a brain structure just above the nose.
Odor molecules entering the nose are thought to be recognized by receptors found in cilia of olfactory neurons. Neurons with specific receptors are arranged randomly within zones in the olfactory lining of the nasal cavity. Signals from neurons with the same receptors converge on structures called glomeruli in the olfactory bulb. The pattern of activity in these glomeruli creates a pattern or code that the brain may interpret as different odors. The information is carried by nerve fibers to many brain regions, where it affects thoughts, emotions, and behavior.
Unfortunately I didn't come to the first class due to the ticket. I tried following the description and hopefully I'm on the right track for this exercise.
resource:http://www.sfn.org/index.cfm?pagename=brainbriefings_smellandtheolfactorysystem
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