Perceptual scale expansion: an efficient angular coding strategy for locomotor space.

Perceptual scale expansion: an efficient angular coding strategy for locomotor space.
复制标题

DOI:
10.3758/s13414-011-0143-5
复制
发表时间:
2011-08
期刊:
Attention, perception & psychophysics
影响因子:
--
通讯作者:
Li Z
Li Z
中科院分区:
其他
文献类型:
--
作者:
Durgin FH;Li Z

文献摘要

参考文献

被引文献

相似文献

虽然大多数感官信息以对数尺度编码,但有限范围的线性扩展可能为角变量提供更有效的编码,这对精确的电机控制很重要。在四个实验中,我们发现感知到的凝视偏斜,就像感知到的物体表面的方向一样,是在一个扭曲的尺度上编码的。这种扭曲似乎是由接近水平/直前方的角度范围几乎线性扩展引起的,在显性语言和非语言测量中(实验1和2)以及在感知凝视方向的隐性测量中(实验4)都很明显。该理论提出,这种尺度扩展(约1.5的因子)可能服务于角感知变量编码效率的功能目标。在同一范围内,凝视偏斜感知的尺度扩大伴随着光学倾斜感知的相应扩大(实验3和实验4)。这些双重扭曲可以解释通常通过直接报告和外心匹配获得的明显距离误解,同时允许准确的空间动作被理解为校准的结果。
Whereas most sensory information is coded in a logarithmic scale, linear expansion of a limited range may provide a more efficient coding for angular variables important to precise motor control. In four experiments it is shown that the perceived declination of gaze, like the perceived orientation of surfaces is coded on a distorted scale. The distortion seems to arise from a nearly linear expansion of the angular range close to horizontal/straight ahead and is evident in explicit verbal and non-verbal measures (Experiments 1 and 2) and in implicit measures of perceived gaze direction (Experiment 4). The theory is advanced that this scale expansion (by a factor of about 1.5) may serve a functional goal of coding efficiency for angular perceptual variables. The scale expansion of perceived gaze declination is accompanied by a corresponding expansion of perceived optical slants in the same range (Experiments 3 and 4). These dual distortions can account for the explicit misperception of distance typically obtained by direct report and exocentric matching while allowing accurate spatial action to be understood as the result of calibration.
DOI: 10.3758/brm.42.2.414
发表时间: 2010-05-01
影响因子: 5.4
作者:
Durgin, Frank H.;Li, Zhi
通讯作者: Li, Zhi
DOI: 10.3758/s13428-010-0047-7
发表时间: 2011-06
影响因子: 5.4
作者:
Li Z;Durgin FH
通讯作者: Durgin FH
DOI: 10.3758/app.72.7.1875
发表时间: 2010-10-01
影响因子: 1.7
作者:
Durgin, Frank H.;Li, Zhi;Hajnal, Alen
通讯作者: Hajnal, Alen
DOI: 10.1111/j.1467-8721.2009.01603.x
发表时间: 2009-02-01
影响因子: 7.2
作者:
Durgin, Frank H.
通讯作者: Durgin, Frank H.
DOI: 10.3758/bf03210273
发表时间: 1967-01-01
期刊: PERCEPTION & PSYCHOPHYSICS
影响因子: --
作者:
KAMMANN, R
通讯作者: KAMMANN, R