四、閱讀測驗【請依照段落上下文意，選出最適當的答案】It can be argued that music is a core function in our brains. Our brains are wired from the beginning to processand understand music. Yet music has always been sort of a mystery, especially since it’s not typically considered“necessary” for survival. That is reserved for the trifecta of food, sex, and sleep.A study came out this month that adds another important piece of information as we continue to figure outhow our brain processes music. When we satisfy our desire to eat, sleep, or reproduce, our brain releasesdopamine — the “feel-good” neurochemical involved when we experience pleasure and reward. It turns out thissame chemical is released when listening to music.A study was conducted by researchers at McGill University in Canada. The researchers used a combination ofPET (positron emission tomography) and fMRI (functional magnetic resonance imagining) techniques to scan thebrains of the eight participants as they listened to music over the course of three sessions. In addition, theparticipants completed a questionnaire in which they rated how pleasurable they found the music.It turns out that when we anticipate and then actually experience a pleasurable response while listening tomusic, our brain reacts in distinct and specific ways to release the “feel-good” chemical dopamine.From an academic standpoint, this is a fascinating study. According to the researchers, this may be the firststudy to show that an abstract reward, such as listening to music, releases dopamine. We’ve traditionally consideredabstract rewards to be processed on a more cognitive level, but this study shows that our ancient reward circuits canbe involved.Additionally, it points to a shared neural network involving tangible and abstract rewards. We already knowthat skills such as speech production use shared neural networks to those used to sing. This study shows the sharedneural circuitry involving how our reward circuits process both tangible and abstract rewards.From a practical standpoint, this will not affect your average day-to-day listening. Just know that when youexperience an emotion while listening to music, your ancient reward circuits are flooding your brain with achemical designed to make you feel good.
46. What is the main idea of this article?
(A) Explaining the details of a research in Canada
(B) Explaining the importance of food, sleep, and sex
(C) Explaining the main purpose of neural networks
(D) Explaining the relation between dopamine and music