Psychophysical Haptic Measurement of Vertical Perception: Elucidating a Hand Sensory Bias.
Psychophysical Haptic Measurement of Vertical Perception: Elucidating a Hand Sensory Bias.
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DOI：
10.1016/j.neuroscience.2021.11.037
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发表时间：
2022-01-15
期刊：
影响因子：
3.3
通讯作者：
Kheradmand A
中科院分区：
文献类型：
--
作者：
Kim MJ;Otero-Millan J;Tian J;Kheradmand A
探测空间感知的主要感觉方式可以在心理物理学范式中变化。在主观视觉垂直（SVV）任务中，大脑必须考虑眼睛在眼眶内的位置以生成视线取向的估计，而在主观触觉垂直（SHV）任务中，手的位置用于感测触觉条的取向。在这里，我们调查了手感觉偏差是否会影响SHV测量。我们测量了SHV在12名受试者（6左撇子和6右撇子）的被迫选择范式，分别使用他们的左手和右手。SHV测量的准确度低于SVV测量（-0.6 ±），并且偏向于任务中使用的手的方向，但不受利手的影响; SHV左手−6.8 ± 2.1°（左手-7.9 ± 3.6°，右手-5.8 ± 2.5°）和右手9.8 ± 1.5°（左手7.4 ± 2.2°，右手12.3 ± 1.8°）。用同一只手进行的SHV测量也受到支撑襻杆放置在左侧或右侧与中线的影响，显示出副作用（左侧与中线-2.0 ± 1.3°，右侧与中线3.8 ± 1.7°）。使用左手和右手进行的中线SHV测量结果不同，证实了偏侧效应（左手−4.5 ± 1.7°，右手6.4 ± 2.0°）。这些结果表明，SHV测量中存在与双手（即，右手对左手）和手在空间位置。这种模态特异性偏差可能导致SHV和SVV测量值之间的差异，因此不能推广到垂直或空间感知。
The primary sensory modality for probing spatial perception can vary among psychophysical paradigms. In the subjective visual vertical (SVV) task, the brain must account for the position of the eye within the orbit to generate an estimate of a visual line orientation, whereas in the subjective haptic vertical (SHV) task, the position of the hand is used to sense the orientation of a haptic bar. Here we investigated whether a hand sensory bias can affect SHV measurement. We measured SHV in 12 subjects (6 left-handed and 6 right-handed) with a forced-choice paradigm using their left and right hands separately. The SHV measurement was less accurate than the SVV measurements (−0.6 ±) and it was biased in the direction of the hand used in the task but was not affected by handedness; SHV left hand −6.8 ± 2.1° (left-handed −7.9 ± 3.6°, right-handed −5.8 ± 2.5°) and right hand 9.8 ± 1.5° (left-handed 7.4 ± 2.2°, right-handed 12.3 ± 1.8°). SHV measurement with the same hand was also affected by the haptic bar placement on the left or right side versus midline, showing a side effect (left vs midline −2.0 ± 1.3°, right vs midline 3.8 ± 1.7°). Midline SHV measures using the left and right hands were different, confirming a laterality effect (left hand −4.5 ± 1.7°, right hand 6.4 ± 2.0°). These results demonstrate a sensory bias in SHV measurement related to the effects of both hand-in-body (i.e., right vs left hand) and hand-in-space positions. Such modality-specific bias may result in disparity between SHV and SVV measurements, and therefore cannot be generalized to vertical or spatial perception.
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影响因子：
5.3
作者：
Clemens, Ivar A. H.;De Vrijer, Maaike;Medendorp, W. Pieter
通讯作者：
Medendorp, W. Pieter
影响因子：
2.1
作者：
Toupet, Michel;Van Nechel, Christian;Grayeli, Alexis Bozorg
通讯作者：
Grayeli, Alexis Bozorg
DOI：
10.1016/s0957-4271(97)00027-x
发表时间：
1997-07-01
影响因子：
2.3
作者：
Mittelstaedt, H
通讯作者：
Mittelstaedt, H
影响因子：
2
作者：
Tarnutzer, Alexander A.;Bockisch, Christopher J.;Straumann, Dominik
通讯作者：
Straumann, Dominik
影响因子：
1.4
作者：
Guerraz, M;Luyat, M;Ohlmann, T
通讯作者：
Ohlmann, T