Du Yangyang, Zhang Fan, Wang Yongchao, Bi Taiyong, Qiu Jiang
Key Laboratory of Cognition and Personality (SWU), Ministry of Education, Chongqing 400715, China; Department of Psychology, Southwest University, Chongqing 400715, China.
Key Laboratory of Cognition and Personality (SWU), Ministry of Education, Chongqing 400715, China; Department of Psychology, Southwest University, Chongqing 400715, China.
Vision Res. 2016 Nov;128:19-29. doi: 10.1016/j.visres.2016.08.005. Epub 2016 Sep 24.
Perceptual learning is a phenomenon in which intensive training for a perceptual task may lead to significant improvement in the task performance. So far, the characteristics of the perceptual learning of facial expressions have not been investigated. In the current study, we trained subjects to distinguish facial expressions. With eight days of training, the subjects' discrimination performance improved significantly, and this improvement was generalized to faces with the same expression but different gender as the trained face. In the second experiment, we further examined the transfer of the learning effect between faces with different expression intensities. We found that the learning effect of happiness can be transferred from the high-intensity face to the low-intensity face, but the reverse was not true. Importantly, in all experiments, we measured the performance immediately after training and one month after training. The results showed that all learning effects and transfers were able to persist for at least one month, which implied that these findings revealed the long-term mechanisms of training. These results revealed the characteristics of facial expression learning and shed light on the mechanisms of perceptual learning for high-level vision.
知觉学习是一种现象，即对一项知觉任务进行强化训练可能会导致任务表现的显著提高。到目前为止，面部表情的知觉学习特征尚未得到研究。在当前的研究中，我们训练受试者区分面部表情。经过八天的训练，受试者的辨别能力显著提高，并且这种提高推广到了与训练面孔表情相同但性别不同的面孔上。在第二个实验中，我们进一步研究了不同表情强度的面孔之间学习效果的迁移情况。我们发现快乐的学习效果可以从高强度面孔迁移到低强度面孔，但反之则不然。重要的是，在所有实验中，我们在训练后立即以及训练后一个月测量了表现。结果表明，所有的学习效果和迁移都能够持续至少一个月，这意味着这些发现揭示了训练的长期机制。这些结果揭示了面部表情学习的特征，并为高级视觉的知觉学习机制提供了启示。
