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Masking interferes with haptic texture perception from sequential exploratory movements
Attention, Perception, & Psychophysics ( IF 1.7 ) Pub Date : 2021-03-11 , DOI: 10.3758/s13414-021-02253-w
Knut Drewing , Alexandra Lezkan

Haptic texture perception is based on sensory information sequentially gathered during several lateral movements (“strokes”). In this process, sensory information of earlier strokes must be preserved in a memory system. We investigated whether this system may be a haptic sensory memory. In the first experiment, participants performed three strokes across each of two textures in a frequency discrimination task. Between the strokes over the first texture, participants explored an intermediate area, which presented either a mask (high-energy tactile pattern) or minimal stimulation (low-energy smooth surface). Perceptual precision was significantly lower with the mask compared with a three-strokes control condition without an intermediate area, approaching performance in a one-stroke-control condition. In contrast, precision in the minimal stimulation condition was significantly better than in the one-stroke control condition and similar to the three-strokes control condition. In a second experiment, we varied the number of strokes across the first stimulus (one, three, five, or seven strokes) and either presented no masking or repeated masking after each stroke. Again, masking between the strokes decreased perceptual precision relative to the control conditions without masking. Precision effects of masking over different numbers of strokes were fit by a proven model on haptic serial integration (Lezkan & Drewing, Attention, Perception, & Psychophysics 80(1): 177–192, 2018b) that modeled masking by repeated disturbances in the ongoing integration. Taken together, results suggest that masking impedes the processes of haptic information preservation and integration. We conclude that a haptic sensory memory, which is comparable to iconic memory in vision, is used for integrating sequentially gathered sensory information.



中文翻译:

掩蔽会干扰连续探索运动引起的触觉纹理感知

触觉纹理的感知是基于在几次横向运动(“中风”)期间顺序收集的感觉信息。在此过程中,必须将早期中风的感觉信息保存在存储系统中。我们调查了该系统是否可能是触觉感觉记忆。在第一个实验中,参与者在频率区分任务中跨两个纹理中的每个纹理进行了三个笔触。在第一个纹理的笔划之间,参与者探索了一个中间区域,该区域呈现了一个遮罩(高能量的触觉模式)或最小的刺激(低能量的光滑表面)。与没有中间区域的三冲程控制条件相比,该口罩的感知精度明显较低,接近于一冲程控制条件下的性能。相比之下,最小刺激条件下的精确度明显优于单冲程控制条件,并且与三冲程控制条件相似。在第二个实验中,我们改变了第一个刺激的笔画数量(一个,三个,五个或七个笔画),并且在每个笔画之后都没有遮盖或重复遮盖。同样,相对于没有遮挡的控制条件,笔划之间的遮挡降低了感知精度。经过验证的触觉序列集成模型可以很好地掩盖不同笔划数的掩膜效果(Lezkan&Drewing,或七个笔划),并且每个笔划后均未遮盖或重复遮盖。同样,相对于没有遮挡的控制条件,笔划之间的遮挡降低了感知精度。经过验证的触觉序列集成模型可以很好地掩盖不同笔划数的掩膜效果(Lezkan&Drewing,或七个笔划),并且每个笔划后均未遮盖或重复遮盖。同样,相对于没有遮挡的控制条件,笔划之间的遮挡降低了感知精度。经过验证的触觉序列集成模型可以很好地掩盖不同笔划数的掩膜效果(Lezkan&Drewing,Attention,Perception,and Psychophysics 80(1):177–192,2018b)通过持续集成中的反复干扰对掩盖进行建模。两者合计,结果表明掩蔽阻碍了触觉信息的保存和整合过程。我们得出的结论是,与视觉中的标志性记忆可比的触觉感官记忆被用于整合顺序收集的感官信息。

更新日期:2021-03-12
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