PSYC 100 Lecture Notes - Lecture 22: Impulsivity, Pressure Of Speech, Cyclothymia

• School: Queen's University
• Department: Psychology
• Course: PSYC 100
• Professor: Jordan Poppenk

Document Summary

Psychoactive substances: a chemical substance that acts on the central nervous system, where it affects brain function, resulting in changes to a person"s emotions, perceptions and thoughts. The use of psychoactive substances can lead to a number of substance-related disorders. Substance disorders have symptoms that overlap or resemble the symptoms of other disorders. Clinical psychologists must be mindful of both substances use and other disorders when assessing clients. Cocaine, heroin, and amphetamines are all psychoactive substances. Fuel, paint, and antifreeze-are only considered to be psychoactive when they are intentionally consumed for the purpose of becoming intoxicated. Many psychoactive chemicals act on the cns, where they affect brain function, resulting in changes to a person"s emotions perceptions or thoughts. Not every use of a psychoactive chemical creates a disorder. The dsm-5 considers 10 separate classes of drugs as part of the substance-related disorders: