Penny consumes a recreational drug.She finds that she is extremely sensitive to what is going on around her,too vigilant in fact.The drug Penny consumed seems to enhance the activity of the neurotransmitter:

Question

Quizplus · Accepted Answer

Norepinephrine is a neurotransmitter that is involved in vigilance and arousal. Enhancing its activity can lead to increased sensitivity to the environment and vigilant behavior. This is consistent with Penny's experience on the recreational drug. Serotonin is involved in mood regulation and anxiety, GABA is involved in inhibitory processes in the brain, and glutamate is an excitatory neurotransmitter that is involved in learning and memory.

Penny Consumes a Recreational Drug