Perceived time is spatial frequency dependent.
Perceived time is spatial frequency dependent.
复制标题
DOI：
10.1016/j.visres.2011.03.019
复制
发表时间：
2011-06-01
期刊：
影响因子：
1.8
通讯作者：
Whitaker, D.
中科院分区：
文献类型：
--
作者：
Aaen-Stockdale, C.;Hotchkiss, J.;Heron, J.;Whitaker, D.
► 视觉刺激的感知持续时间随空间频率内容而变化。 ► 对奇怪刺激做出反应的主观时间延长并不是普遍结果。 ► 声音被感知为比视觉刺激更长并不是普遍的结果。我们研究了低级图像特征（在这种情况下是空间频率）的变化是否能够产生相对于重复出现的“标准”刺激的不频繁“奇怪”刺激的感知持续时间的众所周知的扩展。我们的标准刺激和奇怪刺激是 Gabor 补丁，它们的空间频率相差两个八度。所有刺激都等同于可见性。与之前研究中发现的预期“主观时间扩展”不同，我们根据标准刺激和奇怪刺激的空间频率关系获得了感知时间的相等且相反的扩展或收缩。随后使用等可见刺激的实验表明，尽管物理持续时间相同，但中范围空间频率（约 2 c/deg）始终被认为比低空间频率（0.5 c/deg）或高空间频率（8 c/deg）具有更长的持续时间。这种偏差不是形成基线持续时间的固定比例，而是在加法方面是恒定的，并且暗示了空间频率上视觉暂留的系统变化。我们的结果对广泛引用的发现有影响，即听觉刺激被认为比视觉刺激的持续时间更长。
► The perceived duration of visual stimuli varies with spatial frequency content. ► Subjective time expansion in response to oddball stimuli is not a general result. ► Sounds being perceived as longer than visual stimuli is not a general result. We investigated whether changes in low-level image characteristics, in this case spatial frequency, were capable of generating a well-known expansion in the perceived duration of an infrequent “oddball” stimulus relative to a repeatedly-presented “standard” stimulus. Our standard and oddball stimuli were Gabor patches that differed from each other in spatial frequency by two octaves. All stimuli were equated for visibility. Rather than the expected “subjective time expansion” found in previous studies, we obtained an equal and opposite expansion or contraction of perceived time dependent upon the spatial frequency relationship of the standard and oddball stimulus. Subsequent experiments using equi-visible stimuli reveal that mid-range spatial frequencies (ca. 2 c/deg) are consistently perceived as having longer durations than low (0.5 c/deg) or high (8 c/deg) spatial frequencies, despite having the same physical duration. Rather than forming a fixed proportion of baseline duration, this bias is constant in additive terms and implicates systematic variations in visual persistence across spatial frequency. Our results have implications for the widely cited finding that auditory stimuli are judged to be longer in duration than visual stimuli.
登录
查看更多内容
影响因子：
3.7
作者：
Stetson C;Fiesta MP;Eagleman DM
通讯作者：
Eagleman DM
影响因子：
5.5
作者：
GEORGESON, MA;SULLIVAN, GD
通讯作者：
SULLIVAN, GD
影响因子：
2.4
作者：
CREELMAN, CD
通讯作者：
CREELMAN, CD
影响因子：
25
作者：
Terao, Masahiko;Watanabe, Junji;Nishida, Shin'ya
通讯作者：
Nishida, Shin'ya
影响因子：
1.6
作者：
GOLDSTON.S;LHAMON, WT
通讯作者：
LHAMON, WT