Chan T C
Chinese University of Hong Kong, Shatin, New Territories, Hong Kong.
Percept Psychophys. 1996 Oct;58(7):1110-23. doi: 10.3758/bf03206837.
Three experiments were conducted to investigate situational effects (manipulation, range, and prior experience) on the haptic perception of rod length. Each rod was held between its two ends with one hand. In Experiment 1, 32 participants judged length of rods using different manipulations. Perceived lengths were found to be dependent on manner of manipulation and not necessarily equal to actual lengths. Different parameters were detected in different manipulations. In Experiment 2, 8 participants judged rod lengths by wielding rods of two ranges: long and short. Perceived length was found to be affected by the range of rods evaluated successively in a single set. In Experiment 3, 9 participants judged rod lengths after an experience of handling dense or light rods. Perceived length was found to be affected by prior experience. Results are discussed in terms of how rod lengths can be perceived accurately by haptic modality without involving direct perception.
进行了三项实验，以研究情境效应（操作方式、范围和先前经验）对杆长触觉感知的影响。每根杆都用一只手握住两端。在实验1中，32名参与者使用不同的操作方式判断杆的长度。发现感知到的长度取决于操作方式，不一定等于实际长度。在不同的操作方式中检测到了不同的参数。在实验2中，8名参与者通过挥动两种长度范围的杆（长杆和短杆）来判断杆的长度。发现感知到的长度受在一组中连续评估的杆的范围的影响。在实验3中，9名参与者在有处理重杆或轻杆的经验后判断杆的长度。发现感知到的长度受先前经验的影响。讨论了如何通过触觉模态准确感知杆长而不涉及直接感知的结果。
