Default perception of high-speed motion
Default perception of high-speed motion
复制标题
高速运动的默认感知
DOI:
10.1073/pnas.1213997110
复制
发表时间:
2013
影响因子:
11.1
通讯作者:
T.
中科院分区:
文献类型:
--
作者:
Wexler;M.;Glennerster;A.;Cavanagh;P.;Ito;H.;and Seno;T.
When human observers are exposed to even slight motion signals followed by brief visual transients—stimuli containing no detectable coherent motion signals—they perceive large and salient illusory jumps. This visually striking effect, which we call “high phi,” challenges well-entrenched assumptions about the perception of motion, namely the minimal-motion principle and the breakdown of coherent motion perception with steps above an upper limit calleddmax. Our experiments with transients, such as texture randomization or contrast reversal, show that the magnitude of the jump depends on spatial frequency and transient duration—but not on the speed of the inducing motion signals—and the direction of the jump depends on the duration of the inducer. Jump magnitude is robust across jump directions and different types of transient. In addition, when a texture is actually displaced by a large step beyond the upper step size limit ofdmax, a breakdown of coherent motion perception is expected; however, in the presence of an inducer, observers again perceive coherent displacements at or just abovedmax. In summary, across a large variety of stimuli, we find that when incoherent motion noise is preceded by a small bias, instead of perceiving little or no motion—as suggested by the minimal-motion principle—observers perceive jumps whose amplitude closely follows their owndmaxlimits.
登录
查看更多内容
影响因子:
1.8
作者:
Mark Wexler
通讯作者:
Mark Wexler
DOI:
10.3758/bf03212857
发表时间:
1972
期刊:
Perception & Psychophysics
影响因子:
--
作者:
J. Lappin;H. Bell
通讯作者:
H. Bell
影响因子:
1.8
作者:
Pinkus, A;Pantle, A
通讯作者:
Pantle, A
影响因子:
64.8
作者:
M. Green;M. Chilcoat;C. Stromeyer
通讯作者:
C. Stromeyer
影响因子:
--
作者:
M. V. von Grünau;S. Dubé
通讯作者:
S. Dubé