How task shapes the use of information during facial expression categorizations.
How task shapes the use of information during facial expression categorizations.
复制标题
任务如何影响面部表情分类过程中信息的使用。
作者：
Marie L. Smith;Christina Merlusca
对他人情绪状态的准确分类对人类社会功能至关重要，并且是一个严重依赖于从面部提取和处理特定视觉线索的过程。虽然已经证明，对给定面部表情的成功识别依赖于对特定视觉特征的处理，但对这些特定视觉线索的处理实际上是如何固定的，这在很大程度上仍然是未知的。在一系列的实验中，我们测试了观察者是否根据分类任务的性质利用不同的视觉信息。为此，我们确定了三个关键的面部表情的情感（恐惧，厌恶和愤怒）在“表达或中性”和“表达”分类任务的分类至关重要的面部特征。对于可怕的分类，我们观察到，相同的高空间频率的功能，一贯使用的任务无关，但低空间频率的功能是重要的，只有在有限的比较任务与一个或两个替代比较类别。此外，从低空间频带的信息使用是不固定的，不同的任务中使用的比较类别的参与者利用最显着的视觉信息来执行手头的任务。这些结果提供了新的证据，灵活的信息使用在分类表情的脸，并强调了至关重要的性质的分类任务，在确定的空间频率功能，出席和编码的面部表情的情感分类。
Accurate classification of the emotional state of others is of vital importance to human social functioning and is a process that relies heavily upon the extraction and processing of specific visual cues from faces. Although the successful identification of a given facial expression has been shown to rely on the processing of specific visual features, it remains largely unknown how fixed the processing of these specific visual cues actually is. In a series of experiments we tested if observers make use of different visual information from expressive faces depending on the nature of the categorization task. To this end, we determined the facial features crucial for the categorization of three key facial expressions of emotion (fear, disgust, and anger) during "expressive or neutral" and "which expression" categorization tasks. For fearful categorizations we observed that the same high spatial-frequency features were consistently used irrespective of task, but that low spatial-frequency features were important only in limited comparison tasks with one or two alternative comparison categories. Moreover, information use from the low spatial frequency bands was not fixed and varied depending on the comparison categories used in the task as participants made use of the most salient visual information available to perform the task at hand. These results provide novel evidence of flexible information use in categorizing expressive faces and highlight the crucial importance of the nature of categorization task in determining the spatial-frequency features that are attended to and encoded during the categorization of facial expressions of emotion.
影响因子：
3.7
作者：
L. Pessoa;S. Japee;D. Sturman;Leslie G. Ungerleider
通讯作者：
L. Pessoa;S. Japee;D. Sturman;Leslie G. Ungerleider
DOI：
10.1002/ajpa.20001
发表时间：
2001-01-01
期刊：
YEARBOOK OF PHYSICAL ANTHROPOLOGY, VOL 44
影响因子：
--
作者：
Schmidt, KL;Cohn, JF
通讯作者：
Cohn, JF