neurochemical

例句：

1. 1. Neurochemicals play a crucial role in the brain's development and functioning.
   神经化学物质在大脑的发展和功能中起着至关重要的作用。
2. 2. The study of neurochemistry has led to new insights into the mechanisms underlying cognitive processes.
   神经化学研究已经揭示了认知过程背后的机制。
3. 3. The researchers found that certain neurochemicals could help regulate mood and behavior.
   研究人员发现某些神经化学物质可以帮助调节情绪和行为。