真实场景搜索中的眼动返回抑制

Oculomotor Inhibition of Return in Real World Scene Search

眼动返回抑制是指眼睛返回至先前注视过的位置(客体)时眼跳潜伏期长、可能性低的一种抑制现象。近年来,研究者对真实场景搜索中的眼动返回抑制进行了深入的研究。本文介绍了相关研究的经典实验范式、主要发现及其理论解释,探讨了眼动返回抑制的容量、眼动返回抑制是否具有任务特异性、场景搜索中是否存在眼动返回促进以及眼动返回抑制的神经基础等问题,并指出未来该领域研究的方向和途径。

Oculomotor inhibition of return （IOR） refers to delayed saccadic latency and decreased fixation duration to probe targets presented at the previously fixated locations or objects compared to the novel ones. Recently many studies have focused on the phenomenon of oculomotor inhibition of return during scene search. The present article introduced the experimental paradigms, classical findings of oculomotor inhibition of return during scene search and the theoretical explanations for them. In addition, the controversial issues in the following areas were involved： capacities of oculomotor inhibition of return, whether IOR is specific to the visual search, and whether IOR is a foraging facilitator. We also discussed the neural bases underlying IOR. Finally, the article summarized controversial issues in previous studies and pointed out the directions and methods for future research.