Anger, sadness, happiness, anxiety, surprise, joy, disgust 3. Study feeding or ingestive behavior, not hunger 2. Study aggression, not anger, etc. Chemical control of behavior A. Most of the neurons we have been studying have relatively discrete connections and provide a private line conversation with the neurons they are communicating with. There are classes of neurons that have widespread action that can affect many neurons widely scattered throughout the brain 1.
Preganglionic cell lies in the brainstem or in the sacral spinal cord - norepinephrine ii.
Postganglionic cell lies in the peripheral ganglia, near the gland - norepinephrine 3. Cell bodies are in the brainstem or central core of the brain iii. Urback-Weithe disease rare disease causes bilateral calcification of amygdala. Patients are no longer able to recognize fear in human 3. Electrical stimulation of amygdala can provoke rage or attack 4.