Final answer:
The supplied material does not specifically state that DA neurons fire at the end of a movement after repetition but discusses the importance of action potential frequency in muscle contraction and the role of DA in learning and memory.
Step-by-step explanation:
The question asks whether dopaminergic (DA) neurons fire at the end of a movement after repetition. In the context of neural activity and muscle contraction, the rate at which motor neurons fire action potentials is critical. This is because wave summation can occur, where successive signals increase the tension in the muscles, as described in the provided chapter summary. This concept also touches on the role of DA in memory and learning, particularly concerning rewarding events and expectations.
However, specific to DA neuron activity at the conclusion of a repetitive movement, the supplied material does not clearly indicate that DA neurons would fire at the end of such a movement. DA signaling is indeed crucial for reward-related learning and memory, but there is no direct reference to DA neuron activity post-repetition in movements. Instead, the focus is on muscle contraction, action potentials, and the role of calcium ion release during summation.