need help on discussion

Answer these two questions

1. Ordinarily, patients with advanced Parkinson’s disease (who have damage to dopamine-releasing axons) move very slowly, if at all. However, during an emergency (e.g., a fire in the building), they may move rapidly and vigorously. Suggest a possible explanation.

2. Drugs that block dopamine synapses tend to impair or slow limb movements. However, after people have taken such drugs for a long time, some experience involuntary twitches or tremors in their muscles. Based on material in this chapter, propose a possible explanation.

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