PSYC 100 Lecture Notes - Lecture 2: Brief Psychotic Disorder, Psychoactive Drug, Substance Intoxication

• School: Queen's University
• Department: Psychology
• Course: PSYC 100
• Professor: Caroline F Pukall

Document Summary

Psychoactive substance: a chemical substance that acts on the cns where it affects brain function, resulting in changes to a person"s emotions, perceptions and thoughts o. The use of these psychoactive substances can lead to a number of substance related disorders. o. Substance disorders have symptoms that overlap the symptoms of other disorders, so psychologists must be mindful of both substances use and other disorders when assessing clients. o. Street drugs: includes cocaine, heroin, and amphetamines o. Commonly ingested substances: nicotine, alcohol, caffeine, and prescription medications are common substances that are also psychoactive o. Other common substances: fuel, paint, and antifreeze are only considered psychoactive substances when they are intentionally consumed for the purpose of becoming intoxicated. Describe the four sets of criteria for a substance use disorder. Substance use disorders are classified by the continued use of a substance despite the significant substance related problems o. The diagnosis can be applied to all 10 classes of drugs except caffeine.