先苦后乐:英语乐学大学生在英语学习时情绪反应的脑认知特点

Bitterness followed by happiness: A fMRI study on English lovers

运用功能性磁共振成像(fMRI)技术探索了乐学英语的大学生在对中、英文材料的学习、记忆及成绩反馈过程中的情绪和脑活动特征。结果发现,被试学习英文较之学习中文积极情绪更少且伴随更强的前部脑岛的激活;但当他们获得关于英文成绩的正反馈时,中脑奖赏区的激活却明显高于获得中文成绩正反馈时的情形,且中脑激活与英语乐学呈正相关。这说明乐学是"苦中作乐",人们虽在学习时并未体验到更多快乐,但其成功却带来了更大的心理奖赏。

Academic emotions play important roles in academic motivation and achievement. However, most of the studies on academic emotions focused on negative ones such as test anxiety, the positive academic emotions such as pride, enjoyment, and hope are far less investigated, let alone the brain basis underlying them. In this study, we explored the neural correlates of positive academic emotions by functional magnetic resonance imaging（fMRI）. College students who have high positive academic emotions for learning English（English lovers） were selected as participants. They were required to remember and recognize English or Chinese materials while their brain activation were recorded. Through comparing the neural correlates involved in processing the Chinese and English materials in different stages, which critically included the learning and testing stages, the mental preparation stage before learning and testing, and the feedback of memory performance stage, we can identify the cognitive brain processes, especially the emotional and motivational ones, characterized English lovers. English lovers were selected by English Happy-Learning Questionnaire（EHQ）, together with Maslach Burnout Inventory-General Survey（MBI-GS）, Self-Rating Anxiety Scale（SAS）, and Self-Rating Depression Scale（SDS） to eliminate possible confounders. Nineteen college students（nine males and ten females） who meet the criterion of the study participated in this experiment. Unfamiliar city-state name pairs, which could be presented in English（e.g., Conakry-Guinea） or in Chinese（e.g., 阿塔富-托克劳）, were used as materials. Participants were instructed to remember 144 city-state name pairs（72 for each language）, and then they were given the memory（recognition） test. We focused not only on the brain activation involved in memorizing and recognizing English/Chinese materials, but also on those involved in the mental preparation for learning and testing, and that in getting positive or negative feedbacks in memory performance. Our results revealed two major points：（1） In the learning stage, more anterior insula activation were found when the ＂English lovers＂ were making mental preparation for learning English relative to Chinese, and this difference in insular activation were found to be positively correlated with the scores of EHQ and that of performance in memory test, implying ＂English lovers＂ took more pain and mobilized more cognitive effort in making preparation for learning English.（2） In the retrieval and feedback stage, more activation in the regions for mental reward（midbrain and substantia nigra） and emotional arousal（amygdala） were found to be associated with the receiving of positive feedback for English than for Chinese, whereas more activation in the pain and disgust region（insula） were associated with the receiving of negative feedback for English than for Chinese, both kinds of brain activation differences were positively correlated with the scores of EHQ, implying the success or failure in learning English can have more emotional and motivational implications than its experimental equivalents in Chinese. Taken together, the present study indicated that the emotional, motivational, and cognitive brain processes of the positive academic emotions for learning English mainly embodied in the stages for making mental preparation for learning or testing and for processing feedback on memory performance, but not in the actual learning and testing processes. To be fond of learning may not mean a kind of pure enjoyment, rather it is something that started with bitterness and ended with sweetness.