Integrative Neuroscience and Cognition Center, Université de Paris and CNRS, Paris, France.
J Vis. 2020 Dec 2;20(13):9. doi: 10.1167/jov.20.13.9.
The visual world as it presents itself to our eyes is constantly changing, in contrast with human perceptual experience, which is smooth and stable. One of the posited psychological mechanisms that may contribute to this constructed perceptual stability is the continuity field, a spatiotemporal integration window. The current study examined whether temporal integration, as quantified by serial dependence (SD) between perceived attributes of successive visual stimuli, influenced the subjective appearance of objects or decisional stages in response determination. To do so, an oddball task required participants to directly compare visual objects and decorrelated responses (present/absent) from the visual attribute on which SD may occur (orientation). Results showed that SD could cause a single visual object to appear different from surrounding distractors, leading to modulations of performance. These results argue in favor of a perceptual level of SD, and against decisional accounts.
与人类平稳稳定的感知体验相反，我们眼睛所看到的视觉世界是不断变化的。一种被认为有助于构建这种感知稳定性的心理机制是连续场，即时空整合窗口。本研究考察了时间整合（通过连续刺激感知属性之间的序列依赖（SD）来量化）是否会影响对象的主观外观或响应确定的决策阶段。为此，一项异常任务要求参与者直接比较视觉对象，并对 SD 可能发生的视觉属性（方向）上的不相关响应（存在/不存在）做出反应。结果表明，SD 可能导致单个视觉对象与周围的干扰项看起来不同，从而导致性能的波动。这些结果支持 SD 的感知层面，而反对决策解释。
