{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

overhead4r_607 (fundamentals)

overhead4r_607 (fundamentals) - dose is re-administered...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
Fundamental Concepts in Psychoactive Drug Use Why is psychoactive drug use different than use of ‘natural’ reinforcers? 1. Toxicity. 2. Addiction 1. Toxicity Acute = Overdose CNS stimulants seizures, cardiac arrest, death CNS depressants respiratory failure, coma, death Chronic = Brain Damage Structural damage – loss of brain tissue Functional damage –impairment (i.e. cognitive, psychomotor) 2. Addiction Addiction Abuse ‘Abuse’: continued use of a substance despite consequences e.g., continued heavy drinking despite DWI arrest, license suspension Addiction 2245 Physiological Dependence Tolerance – decreased effect of an initial dose of a drug when that
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: dose is re-administered results in need for ever increasing doses to get the same desired effect (e.g., 4 beers for a social drinker causes same impairment as 15 beers for alcoholic) Withdrawal – emergence of specific symptoms when drug is NOT taken (e.g., shakes, delirium tremens – hallucinations in alcoholic) Both tolerance and withdrawal reflect the body’s effort to compensate for the disturbances in homeostasis produced by drug. Both tolerance and withdrawal increase the likelihood of further drug administration....
View Full Document

{[ snackBarMessage ]}

Ask a homework question - tutors are online