Interaural self-motion linear velocity thresholds are shifted by roll vection.
Interaural self-motion linear velocity thresholds are shifted by roll vection.
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DOI：
10.1007/s00221-008-1540-4
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发表时间：
2008-12
影响因子：
2
通讯作者：
Merfeld, Daniel M.
中科院分区：
文献类型：
--
作者：
Zupan, Lionel H.;Merfeld, Daniel M.
耳石器官对由于头部倾斜引起的重力变化和由于线性加速度引起的惯性力变化做出等效的响应。研究表明，中枢神经系统 (CNS) 使用物理定律的内部模型来区分倾斜和平移。具有这些内部模型的模型预测，如果错觉倾斜足够大，就会伴随着线性运动的错觉。为了研究这一预测，我们在黑暗中和滚动视动刺激下测量了耳间、自我运动、方向检测阈值。每次横向平移都由一个正弦加速周期组成，之后受试者表明他们是向左还是向右平移。我们发现，在顺时针和逆时针视动刺激期间测量的耳间方向检测阈值相对于黑暗中的阈值向相反方向移动。使用广义线性模型，我们确定这一发现具有统计显着性（P < 0.005），并且与幻觉倾斜应该伴随着线速度的非零神经估计的预测一致，如果线速度足够大（超阈值），则有助于平移感知。
The otolith organs respond equivalently to changes in gravitational force due to head tilt and to changes in inertial force due to linear acceleration. It has been shown that the central nervous system (CNS) uses internal models of the laws of physics to distinguish tilt from translation. Models with these internal models predict that illusory tilt, if large enough, will be accompanied by an illusion of linear motion. To investigate this prediction, we measured interaural, self-motion, direction-detection thresholds in darkness and with roll optokinetic stimulation. Each lateral translation consisted of a single cycle of sinusoidal acceleration, after which subjects indicated whether they translated to the left or right. We found that the interaural direction-detection threshold measured during clockwise and counterclockwise optokinetic stimulation shifted in opposite directions relative to thresholds in darkness. Using a generalized linear model, we determined that this finding was statistically significant (P < 0.005) and is consistent with the prediction that illusory tilt should be accompanied by a non-zero neural estimate of linear velocity that, if large enough (supra-threshold), contributes to translation perception.
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影响因子：
2.5
作者：
Merfeld, DM;Park, S;Wood, S
通讯作者：
Wood, S
影响因子：
56.9
作者：
DICHGANS, J;HELD, R;YOUNG, LR
通讯作者：
YOUNG, LR
DOI：
10.1111/j.1749-6632.1992.tb25272.x
发表时间：
1992-05-22
影响因子：
5.2
作者：
GLASAUER, S
通讯作者：
GLASAUER, S
影响因子：
1.9
作者：
Zupan, LH;Merfeld, DM;Darlot, C
通讯作者：
Darlot, C
影响因子：
64.8
作者：
Merfeld, DM;Zupan, L;Peterka, RJ
通讯作者：
Peterka, RJ