高级视皮层可塑性:物体和面孔知觉学习综述

复杂刺激的知觉学习是指由训练或经验引起的对物体或者面孔等复杂视觉刺激在知觉上长期稳定的改变,一般认为这反映了大脑高级视皮层的可塑性.对简单刺激知觉学习特性的研究已经揭示了低级视皮层的部分可塑性,但是复杂刺激知觉学习的神经机制目前仍存在争议.本文介绍了知觉学习的理论模型和实验证据,并重点探讨了复杂刺激如物体和面孔知觉学习的特性、神经机制及研究方法.该领域未来需要在复杂刺激知觉学习的持久性、面孔不同属性知觉学习的机制,以及复杂刺激知觉学习的理论模型方面做进一步研究.

A Review on Neural Plasticity in Perceptual Learning of Complex Stimulus

High-level vision such as object and face perception can be dramatically and persistently improved by intensive training. This phenomenon, termed perceptual learning of complex stimulus, has been considered to reflect the plasticity of human high-level visual cortex. However, the neural mechanism underlying object and face perceptual learning is still controversial. Here we reviewed the theoretical models and experimental evidence of perceptual learning. Importantly, we discussed the behavioral properties, neural mechanisms and research methods of object and face perceptual learning. At the end of the review, future directions in this field were mentioned, including the persistence of learning, the neural mechanism of learning of different face attributes, and the theoretical models of perceptual learning of complex stimulus.