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Is fear perception special? Evidence at the level of decision-making and subjective confidence.

ABSTRACT: Fearful faces are believed to be prioritized in visual perception. However, it is unclear whether the processing of low-level facial features alone can facilitate such prioritization or whether higher-level mechanisms also contribute. We examined potential biases for fearful face perception at the levels of perceptual decision-making and perceptual confidence. We controlled for lower-level visual processing capacity by titrating luminance contrasts of backward masks, and the emotional intensity of fearful, angry and happy faces. Under these conditions, participants showed liberal biases in perceiving a fearful face, in both detection and discrimination tasks. This effect was stronger among individuals with reduced density in dorsolateral prefrontal cortex, a region linked to perceptual decision-making. Moreover, participants reported higher confidence when they accurately perceived a fearful face, suggesting that fearful faces may have privileged access to consciousness. Together, the results suggest that mechanisms in the prefrontal cortex contribute to making fearful face perception special.

SUBMITTER: Koizumi A

PROVIDER: S-EPMC5091676 | biostudies-literature | 2016 Nov

REPOSITORIES: biostudies-literature

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Is fear perception special? Evidence at the level of decision-making and subjective confidence.

Koizumi Ai A Mobbs Dean D Lau Hakwan H

Social cognitive and affective neuroscience 20160712 11

Fearful faces are believed to be prioritized in visual perception. However, it is unclear whether the processing of low-level facial features alone can facilitate such prioritization or whether higher-level mechanisms also contribute. We examined potential biases for fearful face perception at the levels of perceptual decision-making and perceptual confidence. We controlled for lower-level visual processing capacity by titrating luminance contrasts of backward masks, and the emotional intensity ...[more]

PMID: 27405614

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Project description:BackgroundEthical decision-making confidence develops from clinical expertise and is a core competency for nurse leaders. No tool exists to measure confidence levels in nurse leaders based upon an ethical decision-making framework.AimsThe objective of this research was to compare ethical decision-making among nurse leaders in the U.S. and three German-speaking countries in Europe by developing and testing a newly constructed Ethical Decision-Making Confidence (EDMC) scale.MethodsThe cross-sectional survey included 18 theory-derived questions on ethical decision-making confidence which were used to develop the scale.ParticipantsA convenience sample of nurse leaders from the U.S. and three German-speaking countries in Europe who self-identified as holding a leadership position.Ethical considerationsEthical approval was given by the IRB Board of a U.S. university. Participation in the survey implied voluntary consent.ResultsThe scale's item structure dimensionality and subscale's reliability were analyzed and compared between nurse leaders from all four countries. A principal component analysis (PCA) produced a 15-item bi-dimensional EDMC scale yielding a skill-related (9-item) and a behavior-related (6-item) confidence dimension. EDMC subscales showed good-to-excellent internal consistency. In both subscales, U.S. nurse leaders rated their mean EDMC score higher than their German-speaking counterparts in Europe.DiscussionThis exploratory study is the first of its kind to focus on nurse leaders' confidence regarding ethical decision-making in an international context. An overarching factor structure was identified, which is shared by the two samples of nurse leaders and to examine (sub)scales' psychometric properties.ConclusionThis newly developed scale is an effective tool for measuring ethical decision-making confidence in nurse leaders. The promising results of this study should be replicated to ensure validity and reliability of the EDMC scale measuring skill-related and behavior-related concepts and include nurse leaders from various cultural, social, and demographic groups.

Dataset Information

Is fear perception special? Evidence at the level of decision-making and subjective confidence.

Publications

Is fear perception special? Evidence at the level of decision-making and subjective confidence.

Similar Datasets

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