noun
nucleus accumbens
A region in the basal forebrain involved in reward, pleasure, and addiction. Used in neuroscience and medical contexts.
側坐核は報酬系において重要な役割を果たす。
The nucleus accumbens plays an important role in the reward system.
From 側 (side) + 坐/座 (seat) + 核 (nucleus), a calque of the English term 'nucleus accumbens' (literally 'leaning-against nucleus').