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Dr Iain McGilchrist - A Divided Brain and an Addicted World: The Missing Link?

The Weekend University

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Understanding Addiction Through Hemispheric Functions

Hemispheric brain functions play a crucial role in understanding addiction. The left hemisphere, particularly the left frontal lobe, shows overactivity in addiction cases, whether related to substances or behavioral addictions like gambling. This overactivity can be linked to its higher dependence on dopaminergic neurotransmission, while the right hemisphere relies more on serotonergic transmission. These differences in neurotransmission highlight the underlying neurobiological mechanisms that may contribute to addictive behaviors.

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