头部相对于重力的朝向调节知觉反转及Schröder楼梯的首个知觉：一项采用静止显示的四朝向研究
Head orientation relative to gravity modulates perceptual reversals and the first percept on the Schröder staircase: a four-orientation study with a stationary display.
文献信息
| PMID | 42905149 |
|---|---|
| 原文 | 在 PubMed 查看原文 ↗ |
| 发表日期 | 2026 |
| 作者 | Guillermo Rodríguez-Martínez |
| 作者单位 | Academic Area of Creativity, Faculty of Economic and Administrative Sciences, Universidad de Bogotá Jorge Tadeo Lozano, Bogotá, Colombia. guillermo.rodriguez@utadeo.edu.co. |
| 期刊 | Experimental brain research |
| SCI 分区 | Q3 |
| IF | 2.2 |
| 研究类型 | 基础研究 · 基础／转化 |
| 所属专科 | 耳科 |
中文摘要
背景： 解析一个歧义透视图形依赖于由视觉、前庭和本体感觉线索构建的内部参照，而对于所描绘的物体，还依赖于其与观察者身体的关系。在同一个透视刺激上，介于正立与倒置之间的离散头部朝向很少被比较。本研究检验了在屏幕上的刺激保持固定的情况下，头部朝向是否调节知觉反转的速率以及首个知觉的身份。方法：64名成人（平均年龄 = 21.45，标准差 = 2.30；34名女性）在静止显示器上以四种头部朝向——正立、左倾45°、右倾45°和倒置——之一，按两种交替顺序之一观看Schröder楼梯12秒；图形的180°对称性使得正立和倒置的视网膜图像名义上相同。结果：反转速率随头部倾斜而下降：正立（平均值 = 5.59）> 左倾45°（平均值 = 4.08）> 右倾45°（平均值 = 3.39）≥ 倒置（平均值 = 3.05）；F(3, 189) = 61.15，p < .001，η2p = .49；右倾45°和倒置条件之间没有可靠差异。首个知觉也发生了重组：正常楼梯在100%的正立报告中首先出现，倒置楼梯在68.75%的倒置报告中首先出现。结论：因此，头部朝向调节了知觉更新的速度和首个知觉。由于视觉环境和眼旋转未受控制，该效应被归因于头部相对于重力和视觉环境的朝向，这与一种身体参照的解释一致，其中多感觉重加权和对所描绘物体的解释可能共同起作用。
英文摘要
Resolving an ambiguous perspective figure depends on internal references built from visual, vestibular, and proprioceptive cues and, for depicted objects, on their relation to the observer's body. Discrete head orientations between up-right and inverted have rarely been compared on the same perspective stimulus. This study tested whether the orientation of the head modulates the rate of perceptual reversals and the identity of the first percept while the stimulus on the screen remained fixed. Sixty-four adults (Mage = 21.45, SD = 2.30; 34 women) viewed the Schröder staircase on a stationary monitor for 12 s in four head orientations-up-right, 45° left, 45° right, and up-side-down-in one of two alternating orders; the figure's 180° symmetry made the up-right and inverted retinal images nominally identical. Reversal rate decreased with head tilt: up-right (M = 5.59) > 45° left (M = 4.08) > 45° right (M = 3.39) ≥ up-side-down (M = 3.05); F(3, 189) = 61.15, p < .001, η2p = .49; the 45° right and up-side-down conditions did not differ reliably. The first percept also reorganized: the normal staircase emerged first in 100% of up-right reports, the inverted staircase in 68.75% of up-side-down reports. Head orientation thus modulated both the speed of perceptual updating and the first percept. Because the visual surround and ocular torsion were not controlled, the effect is attributed to head orientation relative to gravity and the visual environment, consistent with a body-referenced account in which multisensory re-weighting and the interpretation of the depicted object may operate together.