MICROANATOMY

Detailed explanation-1: -"Dopamine leads to maintain the level of activity to achieve what is intended. This in principle is positive, however, it will always depend on the stimuli that are sought: whether the goal is to be a good student or to abuse of drugs” says Correa.

Detailed explanation-2: -The regions of the brain comprising the “reward system” use the neurotransmitter dopamine to communicate. Dopamine-producing neurons in the ventral tegmental area (VTA) communicate with neurons in the nucleus accumbens in order to evaluate rewards and motivate us to obtain them.

Detailed explanation-3: -The spiking frequency of dopamine neurons increases when a reward is better than expected and decreases when a reward is worse than expected. These changes in dopamine neuron firing are suggested to promote the acquisition of new reward associations and the updating of previously learned associations.