A set of neural circuits using dopamine as a neurotransmitter.
The dopaminergic pathway is essential for the regulation of movement, motivation, pleasure and certain cognitive functions. In the human brain, several dopaminergic pathways have been identified, including the mesolimbic pathway, associated with the reward system, and the nigrostriated pathway, involved in motor control.
The Role of Dopamine in the Brain
Dopamine acts as a chemical messenger that allows neurons to communicate effectively. In dopaminergic pathways, it directly influences our behaviour, emotions and ability to learn. A balanced release of dopamine is therefore essential to the harmony of our brain functions.
An imbalance in these circuits can have serious consequences. Insufficient production of dopamine, for example, is linked to Parkinson's disease, causing rigidity and movement disorders. Conversely, hyperactivity of some pathways is implicated in addictions and some psychiatric disorders.
Other Words That May Be of Interest to You
- Dopamine :
- Nicknamed the “pleasure molecule”, dopamine is a chemical messenger that allows information to flow between certain types of neuron.
- Neurotransmitters :
- A neurotransmitter is a chemical molecule produced and released by a neuron that transmits messages by binding to other cells.