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Physio Psych Exam 2

Drugs and Substance Use Disorder and Research Methods

TermDefinition
Drug of Abuse Any psychoactive substance that has the potential for problematic use, often resulting from effects on mood and behavior
Substance (drug) use Taking a substance
Substance (drug) abuse Continued use of a substance despite negative consequences, development of dependance, presence of withdrawal symptoms, inability to stop, etc
Drugs of abuse affect what pathway Mesolimbic pathway
Side effects of binge/intoxication rapid increase in dopamine transmission in the mesolimbic dopamine system.
Withdrawal Hypo-activity of mesolimbic dopamine system.
Craving Stage Preoccupation with obtaining and taking the drug
Psychoactive Drugs Any drug that has an affect on the brain, which can alter mood, consciousness, perceptions, and sensations, motor control.
CT Scan repeated x-rays to provide a series of horizontal structural images of the brain.
MRI Strong magnetic field used to get a detailed structural view of the brain
DTI Uses the movement of water through the brain to form a structural view of white matter tracks in the brain.
EEG Non-invasive technique where electrodes are positioned around the skull and the electric activity of large populations of neurons is recorded.
PET Scans Radioactive compound is injected into the bloodstream of the patient, The scanner then picks up radio emissions from the labeled molecule to measure function.
Functional MRI (fmri) combines structural mri with measures of blood oxygen level dependent (BOLD) contrast. Used to measure functional brain activity
If both twins are diagnosed with the same disorder... Concordent
If both twins are diagnosed with the different disorder... Discordant
Optogenetics Can be used to probe neural circuits underlying specific behaviors.
Created by: user-1820260
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