School of Psychology and Cognitive Science, East China Normal University, Shanghai, China.
Department of Translational Research on New Technologies in Medicine and Surgery, University of Pisa, Pisa, Italy.
J Vis. 2023 Jul 3;23(7):7. doi: 10.1167/jov.23.7.7.
We actively seek information from the environment through saccadic eye movements, necessitating continual integration of presaccadic and postsaccadic signals, which are displaced on the retina by each saccade. We tested whether trans-saccadic integration may be related to serial dependence (a measure of how perceptual history influences current perception) by measuring how viewing a presaccadic stimulus affects the perceived orientation of a subsequent test stimulus presented around the time of a saccade. Participants reproduced the position, and orientation of a test stimulus presented around a 16° saccade. The reproduced position was mislocalized toward the saccadic target, agreeing with previous work. The reproduced orientation was attracted toward the prior stimulus and regressed to the mean orientation. These results suggest that both short- and long-term past information affects trans-saccadic perception, most strongly when the test stimulus is presented perisaccadically. This study unites the fields of serial dependence and trans-saccadic perception, leading to potential new insights of how information is transferred and accumulated across saccades.
我们通过眼跳积极地从环境中获取信息，这需要不断整合眼跳前和眼跳后的信号，而这些信号在视网膜上会因每次眼跳而发生位移。我们通过测量观看眼跳前刺激会如何影响随后在眼跳时呈现的测试刺激的感知方向，来测试跨眼跳整合是否与序列依赖（一种衡量感知历史如何影响当前感知的方法）有关。参与者再现了在 16°眼跳周围呈现的测试刺激的位置和方向。再现的位置向眼跳目标发生了误定位，这与之前的研究结果一致。再现的方向被吸引到先前的刺激，并向平均方向回归。这些结果表明，无论是短期还是长期的过去信息都会影响跨眼跳的感知，当测试刺激在眼跳期间呈现时，影响最强。这项研究将序列依赖和跨眼跳感知这两个领域结合起来，为信息在眼跳之间如何传递和积累提供了新的见解。
