Which neurotransmitter is commonly associated with mood and cognitive functions?

Serotonin is a key neurotransmitter that plays a crucial role in regulating mood, anxiety, and overall emotional well-being. It is often referred to as a "feel-good" neurotransmitter due to its involvement in feelings of happiness and contentment. Low levels of serotonin are commonly associated with mood disorders such as depression and anxiety, highlighting its importance in cognitive functions and mood stabilization.

Beyond mood regulation, serotonin is also involved in various cognitive processes, including memory and learning. This multi-faceted role underscores why it is often a focus in both scientific research and therapeutic interventions aimed at improving mood and cognitive function. Modulation of serotonin levels is a target for many antidepressant medications, which emphasize its significance in mental health.

Other neurotransmitters, while important, have different primary functions or effects. For example, dopamine is closely linked to reward processing and motivation but not exclusively tied to mood in the same way serotonin is. Glutamate plays a vital role in excitatory neurotransmission and learning but does not have a direct association with mood regulation per se. GABA, being the primary inhibitory neurotransmitter, helps to manage anxiety and promote relaxation but does not directly influence mood or cognitive functions in the same way that serotonin does.