Physiological Psychology: Chapter 3 Flashcards
2-AG (sn-2 Arachidonylglycerol)
chemical that is produced in large quantities by the brain and that attaches to cannabinoid receptors
Acetylcholine
chemical similar to an amino acid, except that the NH2 group has been replaced by an N(CH3)3 group; a neurotransmitter
Acetylcholinesterase
enzyme that breaks acetylcholine into acetate and choline
Affinity
tendency of a drug to bind to a particular type of receptor
Agonist
drug that mimics or increases the effects of a neurotransmitter
Alcoholism
inability to quit drinking or to limit intake of alcohol in spite of strong intentions to do so
Amino Acids
acids containing an amine group
Amphetamine
stimulant drug that increases the release of dopamine
Anandamide
naturally occurring brain chemical that binds to the same receptors as cannabinoids
Antagonist
drug that blocks the effects of a neurotransmitter
Anterior Pituitary
portion of the pituitary gland, composed of glandular tissue
Autoreceptor
presynaptic receptor that is stimulated by the neurotransmitter released by the presynaptic cell itself, feeding back to decrease further release of the transmitter
Cannabinoids
chemicals related to ”9THC, the component of marijuana that alters experience
Catecholamines
compounds such as dopamine, norepinephrine, and epinephrine that contain both catechol and an amine (NH2)
Cocaine
stimulant drug that increases the stimulation of dopamine synapses by blocking the reuptake of dopamine by the presynaptic neuron
COMT (Catechol-O-methyltransferase )
enzyme that converts catecholamines into synaptically inactive forms
Dopamine Transporter
membrane protein that enables the presynaptic neuron to reabsorb dopamine after releasing it
Efficacy
tendency of a drug to activate a particular kind of receptor
Endocrine Gland
structure that releases hormones into the blood
Excitatory Postsynaptic Potential (EPSP)
graded depolarization of a neuron
Exocytosis
excretion of neurotransmitter through the membrane of a presynaptic terminal and into the synaptic cleft between the presynaptic and postsynaptic neurons
G-protein
protein coupled to GTP (guanosine triphosphate, an energy-storing molecule)
Gases
one of the categories of neurotransmitters, including nitric oxide and possibly others
Hallucinogenic Drugs
drugs that grossly distort perception, such as LSD
Hormone
chemical secreted by glands and conveyed by the blood to other organs