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Fear Odor Facilitates the Detection of Fear Expressions Over Other Negative Expressions.
Chemical Senses ( IF 3.5 ) Pub Date : 2018-05-26 , DOI: 10.1093/chemse/bjy029
Roza G Kamiloglu 1 , Monique A M Smeets 1 , Jasper H B de Groot 1, 2 , Gün R Semin 1, 3
Affiliation  

In a double-blind experiment, participants were exposed to facial images of anger, disgust, fear, and neutral expressions under 2 body odor conditions: fear and neutral sweat. They had to indicate the valence of the gradually emerging facial image. Two alternative hypotheses were tested, namely a "general negative evaluative state" hypothesis and a "discrete emotion" hypothesis. These hypotheses suggest 2 distinctive data patterns for muscle activation and classification speed of facial expressions. The pattern of results that would support a "discrete emotions perspective" would be expected to reveal significantly increased activity in the medial frontalis (eyebrow raiser) and corrugator supercilii (frown) muscles associated with fear, and significantly decreased reaction times (RTs) to "only" fear faces in the fear odor condition. Conversely, a pattern of results characterized by only a significantly increased corrugator supercilii activity together with decreased RTs for fear, disgust, and anger faces in the fear odor condition would support an interpretation in line with a general negative evaluative state perspective. The data support the discrete emotion account for facial affect perception primed with fear odor. This study provides a first demonstration of perception of discrete negative facial expressions using olfactory priming.

中文翻译:

恐惧气味有助于检测恐惧表达,而不是其他负面表达。

在一项双盲实验中,参与者在两种体味条件下(恐惧和中性汗水)暴露了愤怒,厌恶,恐惧和中性表情的面部图像。他们必须指出逐渐出现的面部图像的化合价。测试了两个备选假设,即“一般否定评估状态”假设和“离散情绪”假设。这些假设为肌肉激活和面部表情分类速度提供了2种独特的数据模式。可以支持“离散情绪观点”的结果模式将显示与恐惧相关的内侧额叶(眉毛提升者)和皱纹肌(皱眉)肌肉的活动显着增加,并且对“只要” 恐惧面对恐惧气味的情况。相反,结果模式仅表现为瓦楞纸机超纤毛活性显着增加,而在恐惧气味条件下恐惧,厌恶和愤怒面孔的RT降低,这将支持与总​​体负面评估状态观点一致的解释。数据支持由恐惧气味引发的面部情感感知的离散情感。这项研究首次证明了使用嗅觉引发对离散的负面面部表情的感知。并且在恐惧气味条件下的愤怒面孔会支持与一般否定性评估状态观点一致的解释。数据支持由恐惧气味引发的面部情感感知的离散情感。这项研究首次证明了使用嗅觉引发对离散的负面面部表情的感知。并且在恐惧气味条件下的愤怒面孔会支持与一般否定性评估状态观点一致的解释。数据支持由恐惧气味引发的面部情感感知的离散情感。这项研究首次证明了使用嗅觉引发对离散的负面面部表情的感知。
更新日期:2019-11-01
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