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A2 Psychology…read more

Slide 2

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Addiction is the compulsive, loss of control
of a habit
The effects of an addiction is often
associated with social or personal problems
The 2 main addictions focused on are:
Gambling…read more

Slide 3

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7 Components of Addiction
There are 7 main components of an addiction:
Salience ­ the addictive behaviour becomes the most
important thing on the person's mind
Mood Modification ­ By taking part in the addictive
behaviour their mood changes e.g. may become more
Tolerance ­ over a period of time the addict needs to
increase the amount of addictive behaviour done in order
to get the desired feeling as they have built up a
tolerance to it
Withdrawal Symptoms ­ these are the unpleasant
feelings or physical effects that occur when the person
stops their addictive behaviour
Conflict ­ the addiction can cause social conflict
Relapse ­ this is when the addict goes back to the
addictive behaviour after a period of time in which they
had stopped…read more

Slide 4

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Models of Addictive Behaviour
There are 3 main models for
addictive behaviour:
These are used to explain the
initiation, maintenance and relapse
of addictive behaviour…read more

Slide 5

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Biological Explanation
The biological explanation suggests a
vulnerability to addictive behaviour ­
it acknowledges that the
environment has a big influence
The main focus of the biological
approach is on genetics and
dopamine however different
addictions vary slightly…read more

Slide 6

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Initiation ­ Biological Explanation
The biological approach suggests you are more likely to
become addicted if you have a genetic predisposition
People with the A1 component of the DRD2 dopamine
receptor is more vulnerable to having an addiction.
The DRD2 variant causes a decrease in the amount of
dopamine receptor. The individual is likely to start using
addictive substances as they are the only thing strong enough
to provide pleasure ­ they need to compensate for the lack of
receptors by stimulating the ones that they do have
People who lacked the serotonin receptor Htr1b were also
more likely to become addicted to substances such as cocaine
and alcohol…read more

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Ellie Rainey


Great presentation, thanks!



A really good presentation with the key bits - thank youu :)

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