Biology and Behavior Flashcards
What are 3 influences on behavior?
Chemical controls, heredity, and environment.
What if the function of Acetylcholine?
The transmission of nerve impulses to the muscles.
Where is Acetylcholine found?
In the CNS and PNS
What is Acetylcholine linked to?
- Arousal and Attention
A loss of cholinergic acetylcholine in the hippocampus is associated with what?
Alzheimer’s Disease
What is Alzheimer’s Disease?
An illness which results in progressive and incurable memory loss.
What are catecholamines?
Neurotransmitters
What are 3 types of catecholamines?
Epinephrine, Norepinephrine, and Dopamine
Epinephrine, Norepinephrine, and Dopamine classify as catecholamine and ____?
Monoamines (Biogenic Amines)
What is the important role of catecholamines?
Key player in the experience of emotions
Epinephrine
Adrenaline
Norepinephrine
Noradrenaline
What is the purpose of Epinephrine and Norepinephrine?
- Controlling wakefulness and alertness
2. Promote the fight-flight response
E is secreted ____ as a _____ and NE is secreted _____ as a ______.
locally, neurotransmitter; systemically from the adrenal medulla, hormone
Low levels of NE are associated with what?
Depression
High levels of NE are associated with what?
Anxiety and Mania
Dopamine plays an important role in what?
Movement and posture
What is the purpose of the basal ganglia?
Help promote smooth movements and maintain postural stability.
Where are high concentrations of dopamine normally found?
Basal Ganglia
Imbalances of dopamine are linked to what?
Schizophrenia
What is Parkinson’s Disease?
An illness associated with a loss of dopaminergic neurons in the basal ganglia. that lead to resting tremors, jerky movements, and postural instability.
