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PSY330 Study Guide – Drugs & Human Behavior | Neurotransmitters, Drug Classes, Brain Systems & Addiction Models | Complete Course Notes

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This document serves as a full-course study guide for PSY330 – Drugs and Human Behavior, offering a thorough overview of drug effects on the brain, behavior, and physiology. It begins with a foundation in neuroanatomy and neurophysiology, covering major brain structures, the synapse, neurotransmitter types (e.g., dopamine, serotonin, acetylcholine), and their pathways. Key concepts in drug administration, absorption, metabolism, and elimination are outlined alongside pharmacokinetics and pharmacodynamics. Students are introduced to stimulants, depressants, opioids, hallucinogens, cannabis, and psychotherapeutic medications, with detailed mechanisms, therapeutic uses, risks, and tolerance development. The guide explains how psychoactive drugs alter mood, perception, cognition, and behavior through their interaction with neurotransmitter systems. Models of drug addiction—including the disease model, moral model, learning model, and biopsychosocial model—are analyzed in clinical and social contexts. Other major themes include drug policy, scheduling, historical context of substance use, prescription misuse, and sociocultural influences. The guide also includes coverage of behavioral addiction, treatment strategies (CBT, pharmacological intervention), and public health approaches to substance use. Ideal for: – Students in PSY330 or equivalent courses in Drug Psychology or Psychopharmacology – Psychology, Neuroscience, Pre-Med, Nursing, and Behavioral Science majors – Learners preparing for exams on substance use, addiction, and neurobehavioral drug effects – Courses focusing on neuropharmacology, behavioral health, and clinical interventions Keywords: PSY330, drugs and behavior, psychopharmacology, neurotransmitters, drug classes, stimulants, depressants, opioids, cannabis, hallucinogens, addiction, dopamine, serotonin, acetylcholine, brain systems, drug metabolism, tolerance, dependence, drug abuse, substance use disorder, pharmacodynamics, drug policy, behavioral addiction, CBT, treatment models, biopsychosocial

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Uploaded on
December 22, 2025
Number of pages
118
Written in
2025/2026
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PSY330: Exam 4 CH14-17 (schizo, schizo
tx, personality do, child do), PSY330:
EXAM3 CH9,11-13 (suicide, eating
disorder, drug abuse, sexual disorder),
PSY330: EXAM2 CH5-8, PSY330: EXAM1
CH1,3,4 (intro, research models,
diagnosis)


Schizophrenia: - 🧠ANSWER ✔✔-psychotic disorder in which personal,

social, and occupational fx deteriorate via abn perceptions, thoughts,

emotions, and motor skills.

-psychosis=loss contact with reality

-dx with 2 sx for 1mo (delusion,hallucinations, disorganized speech, abn

motor, negative sym, disturb life, chronic impairment)

,-dual diagnosis pt (MICA) who abuse drugs recovery poorly




*dx varies per person


3 types of schizo symptoms: - 🧠ANSWER ✔✔1. postive symptoms=excess

thought(delusions,hallucinations), emotions(inappropriate effect),behavior




2. negative symptoms=lack of normal thought, emotion,behavior, memory

loss




3. psychomotor symptoms=unusual movement or gestures


delusions: - 🧠ANSWER ✔✔-strange false belief firmly held despite

evidence that contrast it

-delusion of grandeur (empowerment)

-delusion of reference (sensitive to signs)

-delusion of control=believe being controlled by someone


Formal thought disorder: - 🧠ANSWER ✔✔-disturbance in production and

organization of thought

,-schizo pt often cannot communcate logically

-confusion=intense perceptions or hallucinations w/o stimuli (commonly

auditory)

-loose association=derailment or shifting topics incoherent

-neologism=makeup words

-perseveration=repetition of words or phrases

-clang=rhyming words incoherently


Hallucinations: - 🧠ANSWER ✔✔-experience of sight, sound, smell, touch in

the absence of external stimuli

-commonly auditory (ex. A beautiful mind movie)

-historically treated as gifts from gods>evil forces>overactive

brain>abnormal circuit


Inappropriate effect: - 🧠ANSWER ✔✔-display of unsuited emotions to the

situation

-out of context responses

-often these ppl aren't even listening but reacting to an internal stimuli

-ex. laughs at a funeral


COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
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STATEMENT. ALL RIGHTS RESERVED

, Positive symptoms: - 🧠ANSWER ✔✔-delusions (ex. lycanthropy)


-formal thought disorder/disordered thinking and speech (loose

association/derailment/neologisms)

-hallucinations

-deficiet smooth eye mov

-inappropriate affect


Negative symptoms: - 🧠ANSWER ✔✔-lack of speech/alogia=poverty of

speech content

-flat affect=restriction/lack of emotions

-avolition=apathy or inability to start/complete a task

-social withdrawal=hiding at home, breakdown of social skills

-anhedonia=general lack of pleasure/joy


Psychomotor symptoms: - 🧠ANSWER ✔✔-abnormal, slow, awkward,

repeated movements that seem to have a private purpose

-ritualistic or magical gestures

-catatonia=pattern of extreme posturing (motionless, rigid, odd pose)

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