The Biological Approach to Addiction
Very brief... Just for a refresh
- Created by: ritateixeira7
- Created on: 24-11-14 20:47
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- The Biological Approach to Addiction
- Initiation
- DRD2 - Dopamine regulation
- SLC6A3-9 - Dopamine removal
- Application
- (Smoking) Thorgeirsson et al (2008)
- (Gambling) Slutske (2010)
- Maintenance
- Inherited sensitive mesolimbic dopamine systme
- Addicts continue with their addictive behaviour to maintain increasingly high levels of dopamine (tolerance)
- Application
- (Smoking) Schachter (1977) - high low nicotine
- (Gambling) Chase and Clark (2010) - fMRI scans - MLDS - near misses
- Relapse
- Substances such as nicotine activate the dopamine reward pathway and the brain adapts to be in balance when the substance is present (neuroadaptation)
- Application
- (Gambling) Wray and Dickerson (1981) - reported physical side effects (insomnia, loss of appetite, muscle weakness)
- Lerman (2007) - abstained smoking one night - increased blood flow
- Initiation
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