Final answer:
Dopamine is likely the neurotransmitter released in Jordan's brain when experiencing an increase in motivation.
Step-by-step explanation:
Jordan is likely to experience an increase in motivation through the release of dopamine in their brain. Dopamine is a neurotransmitter that causes long-term responses in neurons and binds to a G-protein-linked receptor. When dopamine is released, it can lead to increased motivation and reward-seeking behavior.