PS100 Lecture Notes - Lecture 17: Hallucinogen, Caffeine, Depressant

19 views2 pages
18 Dec 2016
School
Department
Course
Professor

For unlimited access to Class Notes, a Class+ subscription is required.

Lecture 17
Types of Drugs
Compensatory Response - body not prepared for the dosage
Tolerance- over time we build up a tolerance, so we have to up the dose to get the same response
Alter your behaviour, block/excite neurotransmitters:
Depressants
Stimulants
Opioids
Hallucinogens
Psychological impact and how they interact (*know the chart)- what neurotransmitters are found in
what drugs and how they affect us
Depressants
Decrease nervous system activity
Moderate doses
o Reduce anxiety; produce euphoria (good feeling)
High doses
o Slow vital life processes
o Can be fatal
Alcohol
Depressant
Increases activity of GABA (inhibitory neurotransmitter-anxiety reduction)
Decreases activity of glutamate (major excitatory neurotransmitter)
Combination creates 'high' and then 'down' phase (inhibits neurotransmitters)
Stimulants
Increase neural firing and arouse nervous system
o Increase blood pressure, heart rate, respiration, alertness (keeps you awake, and allows you
to focus)
o Pattern: big high, big low
Everyday: caffeine- addictive/withdrawal
o Examples: Cocaine (increases activity of norepinephrine, dopamine by blocking uptake
o Chronic use leads to cognitive impairment, brain damage
o Increases energy and alertness, produces feelings of euphoria and well being
Amphetamines
o Increase dopamine activity
o Continuous heavy use can produce amphetamine psychosis
Narcotics- Opioids
Opium= product of poppy plant- opiates
o Morphine, codeine, heroin
Bind to receptors activated by endorphins
o Pain relief
o Mood changes, including euphoria
Highly addictive and traumatic withdrawal (Withdrawal from these drugs is much more severe-
because it causes very high euphoria and binds to receptors a different way)
find more resources at oneclass.com
find more resources at oneclass.com
Unlock document

This preview shows half of the first page of the document.
Unlock all 2 pages and 3 million more documents.

Already have an account? Log in

Get access

Grade+
$10 USD/m
Billed $120 USD annually
Homework Help
Class Notes
Textbook Notes
40 Verified Answers
Study Guides
1 Booster Class
Class+
$8 USD/m
Billed $96 USD annually
Homework Help
Class Notes
Textbook Notes
30 Verified Answers
Study Guides
1 Booster Class