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Ventral motivator nucleus <-> Melancholium (tonic activity) <-> Lateral hyperact

ID: 278035 • Letter: V

Question

Ventral motivator nucleus <-> Melancholium (tonic activity) <-> Lateral hyperactive area <-> Energetic cortex (expands 2 seperate ways) - Sleeping and -> Running

A. The ventral motivator nucleus receives a phasic excitatory input – what behavior do you predict will be presented in response to the input? Additionally, indicate whether each brain region will be stimulated or inhibited in this situation by adding an arrow ((up arrow or down arrow)) next to the brain region label.3 pts

B. The ventral motivator nucleus receives a phasic inhibitory input – what behavior do you predict will be presented in response to the input? Additionally, indicate whether activity in the neurons in each brain region will be increased or decreased by adding an arrow (??or ?) next to the region. 3 pts

C. On the drawing indicate one potential neurotransmitter that could be released by axons at each synapse. 2 pts

Explanation / Answer

Answer A.

Excitory input: neurobiological drug consumption

Behavior : it affects VTA-DA neurons and they are stimulated and develops behavioral sesitization and activates PFC.

Answer B.

Photostimulation of GABAergic LH-VTA components increases dopamine release via inhibition of local VTA GABA energic neuron.

Answer C.

Potential neurotransmitter : Dopamine