Recognition of all basic emotions varies in accuracy and reaction time: A new verbal method of measurement

To study different aspects of facial emotion recognition, valid methods are needed. The more widespread methods have some limitations. We propose a more ecological method that consists of presenting dynamic faces and measuring verbal reaction times. We presented 120 video clips depicting a gradual change from a neutral expression to a basic emotion (anger, disgust, fear, happiness, sadness and surprise), and recorded hit rates and reaction times of verbal labelling of emotions. Our results showed that verbal responses to six basic emotions differed in hit rates and reaction times: happiness > surprise > disgust > anger > sadness > fear (this means these emotional responses were more accurate and faster). Generally, our data are in accordance with previous findings, but our differentiation of responses is better than the data from previous experiments on six basic emotions.     

The Emotion Recognition Task: a paradigm to measure the perception of facial emotional expressions at different intensities

The Emotion Recognition Task is a computer-generated paradigm for measuring the recognition of six basic facial emotional expressions: anger, disgust, fear, happiness, sadness, and surprise. Video clips of increasing length were presented, starting with a neutral face that changes into a facial expression of different intensities (20%-100%). The present study describes methodological aspects of the paradigm and its applicability in healthy participants (N=58; 34 men; ages between 22 and 75), specifically focusing on differences in recognition performance between the six emotion types and age-related change. The results showed that happiness was the easiest emotion to recognize, while fear was the most difficult. Moreover, older adults performed worse than young adults on anger, sadness, fear, and happiness, but not on disgust and surprise. These findings indicate that this paradigm is probably more sensitive than emotion perception tasks using static images, suggesting it is a useful tool in the assessment of subtle impairments in emotion perception.     

Emotions associated with different textures during touch

Haptics plays an important role in emotion perception. However, most studies of the affective aspects of haptics have investigated emotional valence rather than emotional categories. In the present study, we explored the associations of different textures with six basic emotions: fear, anger, happiness, disgust, sadness and surprise. Participants touched twenty-one different textures and evaluated them using six emotional scales. Additionally, we explored whether individual differences in participants’ levels of alexithymia are related to the intensity of emotions associated with touching the textures. Alexithymia is a trait related to difficulties in identifying, describing and communicating emotions to others. The findings show that people associated touching different textures with distinct emotions. Textures associated with each of the basic emotions were identified. The study also revealed that a higher alexithymia level corresponds to a higher intensity of associations between textures and the emotions of disgust, anger and sadness.     

Haptic recognition of static and dynamic expressions of emotion in the live face

If humans can detect the wealth of tactile and haptic information potentially available in live facial expressions of emotion (FEEs), they should be capable of haptically recognizing the six universal expressions of emotion (anger, disgust, fear, happiness, sadness, and surprise) at levels well above chance. We tested this hypothesis in the experiments reported here. With minimal training, subjects' overall mean accuracy was 51% for static FEEs (Experiment 1) and 74% for dynamic FEEs (Experiment 2). All FEEs except static fear were successfully recognized above the chance level of 16.7%. Complementing these findings, overall confidence and information transmission were higher for dynamic than for corresponding static faces. Our performance measures (accuracy and confidence ratings, plus response latency in Experiment 2 only) confirmed that happiness, sadness, and surprise were all highly recognizable, and anger, disgust, and fear less so.     

The Relative Dominance of Different Facial Expressions of Emotion under Conditions of Perceptual Ambiguity

Abstract

Facial expressions of happiness, excitement, surprise, fear, anger, disgust, sadness, and calm were presented stereoscopically to create pair wise perceptual conflict. Dominance of one expression over another as the most common result, but basic emotions (happiness, fear, etc.) failed to dominate non-basic emotions (excitement, calm), Instead, extremely pleasant or extremely unpleasant emotions dominated less valenced emotions (e.g. surprise). Blends of the presented pairs also occurred, mainly when the emotions were adjacent according to a circumplex structure of emotion. Blends were most common among negatively valenced emotions, such as fear, anger, and disgust.     

Bodily maps of emotions across child development

Different basic emotions (anger, fear, disgust, happiness, sadness, and surprise) are consistently associated with distinct bodily sensation maps, which may underlie subjectively felt emotions. Here we investigated the development of bodily sensations associated with basic emotions in 6‐ to 17‐year‐old children and adolescents (n = 331). Children as young as 6 years of age associated statistically discernible, discrete patterns of bodily sensations with happiness, fear, and surprise, as well as with emotional neutrality. The bodily sensation maps changed from less to more specific, adult‐like patterns as a function of age. We conclude that emotion‐related bodily sensations become increasingly discrete over child development. Developing awareness of their emotion‐related bodily sensations may shape the way children perceive, label, and interpret emotions.     

The neural underpinnings of facial emotion recognition in ischemic stroke patients

Deficits in facial emotion recognition occur frequently after stroke, with adverse social and behavioural consequences. The aim of this study was to investigate the neural underpinnings of the recognition of emotional expressions, in particular of the distinct basic emotions (anger, disgust, fear, happiness, sadness and surprise). A group of 110 ischaemic stroke patients with lesions in (sub)cortical areas of the cerebrum was included. Emotion recognition was assessed with the Ekman 60 Faces Test of the FEEST. Patient data were compared to data of 162 matched healthy controls (HC’s). For the patients, whole brain voxel-based lesion–symptom mapping (VLSM) on 3-Tesla MRI images was performed. Results showed that patients performed significantly worse than HC’s on both overall recognition of emotions, and specifically of disgust, fear, sadness and surprise. VLSM showed significant lesion–symptom associations for FEEST total in the right fronto-temporal region. Additionally, VLSM for the distinct emotions showed, apart from overlapping brain regions (insula, putamen and Rolandic operculum), also regions related to specific emotions. These were: middle and superior temporal gyrus (anger); caudate nucleus (disgust); superior corona radiate white matter tract, superior longitudinal fasciculus and middle frontal gyrus (happiness) and inferior frontal gyrus (sadness). Our findings help in understanding how lesions in specific brain regions can selectively affect the recognition of the basic emotions.     

Basic emotions elicited by odors and pictures

The sense of olfaction is often reported to have a special relationship with emotional processing. Memories triggered by olfactory cues often have a very emotional load. On the other hand, basic negative or positive emotional states should be sufficient to cover the most significant functions of the olfactory system including ingestion, hazard avoidance, and social communication. Thus, we investigated whether different basic emotions can be evoked in healthy people through the sense of olfaction. We asked 119 participants which odor evokes one of the six basic emotions (happiness, disgust, anger, anxiety, sadness, and surprise); another 97 participants were asked about pictures evoking those emotions. The results showed that almost every participant could name an olfactory elicitor for happiness or disgust. Olfactory elicitors of anxiety were reported less frequently, but they were still reported by three-quarters of the participants. However, for sadness and anger only about half of the participants reported an olfactory elicitor, whereas significantly more named a visual cue. Olfactory emotion elicitors were mainly related to the classes of culture, plants, and food, and visual emotion elicitors were largely related to humans. This data supports the hypothesis that in the vast majority of people, few differentiated emotions can be elicited through the olfactory channel. These emotions are happiness, disgust, and anxiety.     

Recognition of emotional facial expressions: the role of facial and contextual information in the accuracy of recognition

Recognition of emotional facial expressions is a central area in the psychology of emotion. This study presents two experiments. The first experiment analyzed recognition accuracy for basic emotions including happiness, anger, fear, sadness, surprise, and disgust. 30 pictures (5 for each emotion) were displayed to 96 participants to assess recognition accuracy. The results showed that recognition accuracy varied significantly across emotions. The second experiment analyzed the effects of contextual information on recognition accuracy. Information congruent and not congruent with a facial expression was displayed before presenting pictures of facial expressions. The results of the second experiment showed that congruent information improved facial expression recognition, whereas incongruent information impaired such recognition.     

A Voxel-based lesion study on facial emotion recognition after circumscribed prefrontal cortex damage

Previous studies have shown inconsistent findings regarding the contribution of the different prefrontal regions in emotion recognition. Moreover, the hemispheric lateralization hypothesis posits that the right hemisphere is dominant for processing all emotions regardless of affective valence, whereas the valence specificity hypothesis posits that the left hemisphere is specialized for processing positive emotions while the right hemisphere is specialized for negative emotions. However, recent findings suggest that the evidence for such lateralization has been less consistent. In this study, we investigated emotion recognition of fear, surprise, happiness, sadness, disgust, and anger in 30 patients with focal prefrontal cortex lesions and 30 control subjects. We also examined the impact of lesion laterality on recognition of the six basic emotions. The results showed that compared to control subjects, the frontal subgroups were impaired in recognition of three negative basic emotions of fear, sadness, and anger – regardless of the lesion laterality. Therefore, our findings did not establish that each hemisphere is specialized for processing specific emotions. Moreover, the voxel-based lesion symptom mapping analysis showed that recognition of fear, sadness, and anger draws on a partially common bilaterally distributed prefrontal network.     

The Matching of Facial Expressions by Deaf and Hearing Children and Their Production and Comprehension of Emotion Labels

This paper reports the results of three tasks comparing the development of the understanding of facial expressions of emotion in deaf and hearing children. Two groups of hearing and deaf children of elementary school age were tested for their ability to match photographs of facial expressions of emotion, and to produce and comprehend emotion labels for the expressions of happiness, sadness, anger, fear, disgust, and surprise. Accuracy data showed comparable levels of performance for deaf and hearing children of the same age. Happiness and sadness were the most accurately matched expressions and the most accurately produced and comprehended labels. Anger was the least accurately matched expression and the most poorly comprehended emotion label. Disgust was the least accurately labeled expression; however, deaf children were more accurate at labeling this expression, and also at labeling fear, than hearing children. Error data revealed that children confused anger with disgust, and fear with surprise. However, the younger groups of deaf and hearing children also showed a tendency to confuse the negative expressions of anger, disgust, and fear with sadness. The results suggest that, despite possible differences in the early socialisation of emotion, deaf and hearing children share a common understanding of the emotions conveyed by distinctive facial expressions.     

Facial expressions and the ability to recognize emotions from the eyes or mouth: A comparison among old adults,young adults,and children

The aim of the present study was to contribute to the literature on the ability to recognize anger, happiness, fear, surprise, sadness, disgust, and neutral emotions from facial information (whole face, eye region, mouth region). More specifically, the aim was to investigate older adults' performance in emotions recognition using the same tool used in the previous studies on children and adults’ performance and verify if the pattern of emotions recognition show differences compared with the other two groups. Results showed that happiness is among the easiest emotions to recognize while the disgust is always among the most difficult emotions to recognize for older adults. The findings seem to indicate that is more easily recognizing emotions when pictures represent the whole face; compared with the specific region (eye and mouth regions), older participants seems to recognize more easily emotions when the mouth region is presented. In general, the results of the study did not detect a decay in the ability to recognize emotions from the face, eyes, or mouth. The performance of the old adults is statistically worse than the other two groups in only a few cases: in anger and disgust recognition from the whole face; in anger recognition from the eye region; and in disgust, fear, and neutral emotion recognition from mouth region.     

Categorical and dimensional perceptions in decoding emotional facial expressions

We investigated whether categorical perception and dimensional perception can co-occur while decoding emotional facial expressions. In Experiment 1, facial continua with endpoints consisting of four basic emotions (i.e., happiness–fear and anger–disgust) were created by a morphing technique. Participants rated each facial stimulus using a categorical strategy and a dimensional strategy. The results show that the happiness–fear continuum was divided into two clusters based on valence, even when using the dimensional strategy. Moreover, the faces were arrayed in order of the physical changes within each cluster. In Experiment 2, we found a category boundary within other continua (i.e., surprise–sadness and excitement–disgust) with regard to the arousal and valence dimensions. These findings indicate that categorical perception and dimensional perception co-occurred when emotional facial expressions were rated using a dimensional strategy, suggesting a hybrid theory of categorical and dimensional accounts.     

Understanding emotional display rules at work and outside of work: The effects of country and gender

This study examined the long-held, but empirically untested assumption that emotional display rules at work are different from more general display rules. We examined whether the effect of context (work vs. non-work) on display rules depended on rater gender, rater country (i.e., Singapore, United States), and discrete emotion (anger, contempt, disgust, fear, sadness, and happiness). Results revealed that display rules at work involved less expressivity of emotion than did display rules outside of work for all six emotions. Further, display rules in Singapore involved less expressivity of anger, sadness, and fear than display rules in the US, with no country differences being observed for the emotions of happiness, contempt, and disgust. These results were qualified by significant country-by-gender interactions for anger, contempt, and disgust, a significant country-by-context interaction for fear, and a three-way interaction (i.e., country-by-gender-by-context) for sadness.     

The experience of emotions in everyday life

Abstract

A total of 47 employed adults were asked to record, in structured diaries, details of four episodes of emotion from the set that we regard as basic (happiness, sadness, anger, fear, disgust) and also to note occurrences of other emotions not in this set. Subjects experienced an average of about one episode of consciously recognised emotion a day, and in rating intensities they said that 11% of episodes were as intense as they could imagine. Anger was the most frequent of the basic emotions, and disgust the least frequent. There were no significant differences in rates or intensities of basic emotions as a function of gender. We predicted 69% of these emotions correctly from the goal-relevant events that elicited them: happiness was typically caused by achievements, sadness by losses, anger by frustration, and fear by threat, but the causation of disgust was more difficult to identify. In 31% of episodes pairs of basic emotions occurred in mixtures. Positive emotions tended to help plans, while negative ones tended to hinder them.     

Facial Expressions and the Ability to Recognize Emotions from the Eyes or Mouth: A Comparison Between Children and Adults

The authors sought to contribute to the literature on the ability to recognize anger, happiness, fear, surprise, sadness, disgust, and neutral emotions from facial information. They aimed to investigate if—regardless of age—this pattern changes. More specifically, the present study aimed to compare the difference between the performance of adults and 6- to 7-year-old children in detecting emotions from the whole face and a specific face region, namely the eyes and mouth. The findings seem to indicate that, for both groups, recognizing disgust, happiness, and surprise is facilitated when pictures represent the whole face. However, with regard to a specific region, a prevalence for children was not found between the eyes and mouth. Meanwhile, for adults, would seem to detect a greater role of the eye region. Finally, regarding the differences in the performance of emotions recognition, adults are better only in a few cases, whereas children are better in recognizing anger from the mouth.     

Assessment of perception of morphed facial expressions using the Emotion Recognition Task: Normative data from healthy participants aged 8–75

The ability to recognize and label emotional facial expressions is an important aspect of social cognition. However, existing paradigms to examine this ability present only static facial expressions, suffer from ceiling effects or have limited or no norms. A computerized test, the Emotion Recognition Task (ERT), was developed to overcome these difficulties. In this study, we examined the effects of age, sex, and intellectual ability on emotion perception using the ERT. In this test, emotional facial expressions are presented as morphs gradually expressing one of the six basic emotions from neutral to four levels of intensity (40%, 60%, 80%, and 100%). The task was administered in 373 healthy participants aged 8–75. In children aged 8–17, only small developmental effects were found for the emotions anger and happiness, in contrast to adults who showed age‐related decline on anger, fear, happiness, and sadness. Sex differences were present predominantly in the adult participants. IQ only minimally affected the perception of disgust in the children, while years of education were correlated with all emotions but surprise and disgust in the adult participants. A regression‐based approach was adopted to present age‐ and education‐ or IQ‐adjusted normative data for use in clinical practice. Previous studies using the ERT have demonstrated selective impairments on specific emotions in a variety of psychiatric, neurologic, or neurodegenerative patient groups, making the ERT a valuable addition to existing paradigms for the assessment of emotion perception.     

Shame,guilt, and facial emotion processing: initial evidence for a positive relationship between guilt-proneness and facial emotion recognition ability

Shame and guilt are closely related self-conscious emotions of negative affect that give rise to divergent self-regulatory and motivational behaviours. While guilt-proneness has demonstrated positive relationships with self-report measures of empathy and adaptive interpersonal functioning, shame-proneness tends to be unrelated or inversely related to empathy and is associated with interpersonal difficulties. At present, no research has examined relationships between shame and guilt-proneness with facial emotion recognition ability. Participants (N?=?363) completed measures of shame and guilt-proneness along with a facial emotion recognition task which assessed the ability to identify displays of anger, sadness, happiness, fear, disgust, and shame. Guilt-proneness was consistently positively associated with facial emotion recognition ability. In contrast, shame-proneness was unrelated to capacity for facial emotion recognition. Findings provide support for theory arguing that guilt and empathy operate synergistically and may also help explain the inverse relationship between guilt-proneness and propensity for aggressive behaviour.     

基本情绪的神经基础：来自fMRI与机器视觉技术研究的证据

基本情绪理论(basic emotion theory)是情绪科学领域最具代表性的理论, 该理论认为人类情绪是由有限的几种基本情绪组成的, 如恐惧、愤怒、喜悦、悲伤等。基本情绪是为了完成基本生命任务(fundamental life task)进化而来的, 每一种基本情绪都有独特的神经结构和生理基础。尽管基本情绪理论被广泛接受, 但是对于基本情绪的种类却莫衷一是。近几十年来, 许多fMRI研究试图确定各种基本情绪的独特神经结构基础, 而且取得了许多重要发现, 比如厌恶和脑岛有关, 悲伤和前扣带回有关, 杏仁核是与恐惧有关的重要边缘结构等。但是, 最近有人进行了元分析研究, 发现许多基本情绪存在混淆的大脑区域, 因此对基本情绪的特定脑区理论提出质疑, 甚至否定基本情绪理论。通过对基本情绪及其神经基础的探讨, 以及对基本情绪理论的最新功能性磁共振成像研究进行梳理分析, 提出有关基本情绪理论的争论来源于基本情绪种类的确定, 因为许多所谓的不同基本情绪实际上是同一种基本情绪, 提出人类可能只有3种基本情绪。未来研究可以利用机器视觉技术进一步推动基本情绪脑影像研究。