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9990 · 1.3.2

Explanations of impulse control disorders

9990 Clinical — biological, learning, and cognitive explanations of impulse control failure.

Need to know

What you need to know

  • Focuses on neurochemical imbalances, particularly with the neurotransmitter dopamine.
  • The mesolimbic reward pathway is believed to be overactive or hypersensitive.
  • The impulsive behaviour provides a dopamine rush, leading to reinforcement and craving.
  • Potential dysfunction in the prefrontal cortex impairs the ability to inhibit impulsive urges.
  • Genetic predispositions may make some individuals more vulnerable to developing ICDs.

Explanation

Explanations of impulse control disorders

  1. Focuses on neurochemical imbalances, particularly with the neurotransmitter dopamine.
  2. The mesolimbic reward pathway is believed to be overactive or hypersensitive.
  3. The impulsive behaviour provides a dopamine rush, leading to reinforcement and craving.
  4. Potential dysfunction in the prefrontal cortex impairs the ability to inhibit impulsive urges.