Vection is a perceptual phenomenon that describes the visually induced subjective sensation of self-motion in the absence of physical motion. Previous research has discussed the potential involvement of top-down cognitive mechanisms on vection. Here, we quantified how cognitive manipulations such as contextual information (i.e., expectation) and plausibility (i.e., chair configuration) alter vection. We also explored how individual traits such as field dependence, depersonalization, anxiety, and social desirability might be related to vection. Fifty-one healthy adults were exposed to an optic flow stimulus that consisted of horizontally moving black-and-white bars presented on three adjacent monitors to generate circular vection. Participants were divided into three groups and given experimental instructions designed to induce either strong, weak, or no expectation with regard to the intensity of vection. In addition, the configuration of the chair (rotatable or fixed) was modified during the experiment. Vection onset time, duration, and intensity were recorded. Results showed that expectation altered vection intensity, but only when the chair was in the rotatable configuration. Positive correlations for vection measures with field dependence and depersonalization, but no sex-related effects were found. Our results show that vection can be altered by cognitive factors and that individual traits can affect the perception of vection, suggesting that vection is not a purely perceptual phenomenon, but can also be affected by top-down mechanisms.

向量是一种知觉现象，它描述了在没有物理运动的情况下视觉诱发的自我运动主观感觉。先前的研究讨论了自上而下的认知机制对矢量的潜在参与。在这里，我们量化了诸如上下文信息（即期望）和合理性（即椅子配置）等认知操作如何改变矢量。我们还探讨了诸如场依赖、人格解体、焦虑和社会合意性等个人特征如何与迁移相关。51 名健康成年人暴露于光流刺激下，该刺激由三个相邻显示器上呈现的水平移动黑白条组成，以产生圆形矢量。参与者被分为三组，并接受旨在诱导强、弱、或者对矢量的强度没有期望。此外，在实验过程中修改了椅子的配置（可旋转或固定）。记录矢量开始时间、持续时间和强度。结果表明，期望改变了矢量强度，但仅当椅子处于可旋转配置时。向量测量与场依赖和人格解体呈正相关，但未发现与性别相关的影响。我们的研究结果表明，vection 可以被认知因素改变，并且个体特征可以影响对vection 的感知，这表明vection 不是一种纯粹的感知现象，但也可以受到自上而下机制的影响。在实验过程中修改了椅子的配置（可旋转或固定）。记录矢量开始时间、持续时间和强度。结果表明，期望改变了矢量强度，但仅当椅子处于可旋转配置时。向量测量与场依赖和人格解体呈正相关，但未发现与性别相关的影响。我们的研究结果表明，vection 可以被认知因素改变，并且个体特征可以影响对vection 的感知，这表明vection 不是一种纯粹的感知现象，但也可以受到自上而下机制的影响。在实验过程中修改了椅子的配置（可旋转或固定）。记录矢量开始时间、持续时间和强度。结果表明，期望改变了矢量强度，但仅当椅子处于可旋转配置时。向量测量与场依赖和人格解体呈正相关，但未发现与性别相关的影响。我们的研究结果表明，vection 可以被认知因素改变，并且个体特征可以影响对vection 的感知，这表明vection 不是一种纯粹的感知现象，但也可以受到自上而下机制的影响。向量测量与场依赖和人格解体呈正相关，但未发现与性别相关的影响。我们的研究结果表明，vection 可以被认知因素改变，并且个体特征可以影响对vection 的感知，这表明vection 不是一种纯粹的感知现象，但也可以受到自上而下机制的影响。向量测量与场依赖和人格解体呈正相关，但未发现与性别相关的影响。我们的研究结果表明，vection 可以被认知因素改变，并且个体特征可以影响对vection 的感知，这表明vection 不是一种纯粹的感知现象，但也可以受到自上而下机制的影响。