Processing of facial affect under social threat in socially anxious adults: mood matters

Altered mechanisms of adaptation in social anxiety: differences in adapting to positive versus negative emotional faces

Social anxiety is characterised by fear of negative evaluation and negative perceptual biases; however, the cognitive mechanisms underlying these negative biases are not well understood. We investigated a possible mechanism which could maintain negative biases: altered adaptation to emotional faces. Heightened sensitivity to negative emotions could result from weakened adaptation to negative emotions, strengthened adaptation to positive emotions, or both mechanisms. We measured adaptation from repeated exposure to either positive or negative emotional faces, in individuals high versus low in social anxiety. We quantified adaptation strength by calculating the point of subjective equality (PSE) before and after adaptation for each participant. We hypothesised: (1) weaker adaptation to angry vs happy faces in individuals high in social anxiety, (2) no difference in adaptation to angry vs happy faces in individuals low in social anxiety, and (3) no difference in adaptation to sad vs happy faces in individuals high in social anxiety. Our results revealed a weaker adaptation to angry compared to happy faces in individuals high in social anxiety (Experiment 1), with no such difference in individuals low in social anxiety (Experiment 1), and no difference in adaptation strength to sad vs happy faces in individuals high in social anxiety (Experiment 2).

Sosyal Biliş Becerilerinin Sosyal Kaygı Üzerindeki Yordayıcı Etkisi

Bu çalışmanın temel amacı sosyal kaygı ile sosyal biliş becerileri (duygu tanıma/ayırt etme, zihin kuramı, atıf yanlılığı, sosyal işlevsellik) arasındaki ilişkiyi incelemek ve sosyal biliş becerilerinin sosyal kaygıyı yordama gücünü araştırmaktır. Çalışmada ayrıca sosyal kaygı, sosyal biliş becerileri ve depresyon puanlarının cinsiyet, yaş, bildirilen tanı durumu ve sosyal kaygı düzeyine göre farklılaşıp farklılaşmadığı araştırılmıştır. Çalışmanın örneklemini, 18-60 yaşları arasında bulunan toplam 385 kişi oluşturmuştur. Araştırma verileri çevrimiçi olarak Liebowitz Sosyal Anksiyete Ölçeği, Yüzde Dışavuran Duyguların Tanınması ve Ayırt Edilmesi Testi, Gözlerden Zihin Okuma Testi, İçsel, Kişisel ve Durumsal Atıflar Ölçeği, Sosyal İşlevsellik Ölçeği, Beck Depresyon Envanteri ve Sosyodemografik Bilgi Formu kullanılarak katılımcılardan toplanmıştır. Sosyal kaygı ile duygu tanıma, duygu ayırt etme ve gözlerden zihin okuma arasında negatif, dışsallaştırma yanlılığı ve depresyon ile ise pozitif yönde anlamlı ilişki olduğu belirlenmiştir. Depresyon, duygu tanıma ve ayırt etme, gözlerden zihin okuma ve öncül sosyal etkinlikler ölçek puanlarının sosyal kaygıyı anlamlı düzeyde yordadığı bulunmuştur. Bu değişkenler sosyal kaygıya ilişkin toplam varyansın %52’sini açıklamaktadır. Ayrıca, depresyon etkisi kontrol edildiğinde sosyal biliş becerilerinin sosyal kaygıya ilişkin varyansın %32’sini açıkladığı görülmüştür. Sosyal biliş becerilerindeki bozulmanın ve depresyon puanlarının sosyal kaygının artışıyla ilişkili olduğu belirlenmiştir. Araştırmadan elde edilen sonuçlara göre, sosyal kaygıyı önlemeye yönelik önerilerde bulunulmuştur. Müdahale programları içerisinde bireylerin kişilerarası iletişimi için önemli olan sosyal biliş becerilerini geliştirmeye yönelik etkinliklere yer verilmesinin yararlı olacağı önerilmektedir.

Facing Uncertainty: Interpretation of Ambiguous Emotional Faces in Childhood Social Anxiety Disorder

OBJECTIVE

The current study examined whether children with a social anxiety disorder (SAD) demonstrate divergent facial emotion processing and a disorder-specific negative interpretation bias in the processing of facial emotional expressions. This study aimed to overcome previous study limitations by including both a nonsocially anxious control group and a healthy control group to examine whether childhood SAD is characterized by a general emotion labeling deficit, and/or by a negative interpretation bias, indicated by systematic misclassifications, or a lower threshold for recognizing threatening emotions.

METHOD

Participants were 132 children aged 7-12 years (M_age = 9.15; 45.5% female). Children with SAD (n = 42) were compared to children with other, nonsocial, anxiety disorders (n = 40) and healthy control children (n = 50) on a novel facial emotion recognition task. Children judged ambiguous happy/neutral, angry/neutral and fear/neutral faces that were morphed at different intensities (10%, 30%, 50%, 70%).

RESULTS

Children with SAD did not differ from other groups in their accuracy of identifying emotions. They did not show systematic misclassifications or a heightened sensitivity to negative, threatening faces either. Rather, children with nonsocial anxiety disorders showed a generally heightened sensitivity to emotional faces.

CONCLUSIONS

The current study does not provide evidence for a general deficit in labeling of emotional faces in childhood SAD. Childhood SAD was not characterized by an interpretation bias in processing emotional faces. Children with nonsocial anxiety disorders may benefit from assistance in accurately interpreting the degree of emotionality in interpersonal situations.

Psychiatric Assessment of Social Impairment Across the Lifespan

Although autism spectrum disorder (ASD) is the prototypical psychiatric disorder of social impairment, several if not most psychiatric disorders are characterized by prominent impairments in social functioning. A challenge in clinically assessing and describing social impairment is that it has been variably defined and can be difficult to measure. In this article we consider the psychiatric differential diagnosis of social impairment within the DSM-5 framework. We describe the features of social impairment in 13 DSM-5 disorders from a developmental perspective and highlight diagnostic factors that differentiate among the disorders, including the main features of social impairment, verbal communication, nonverbal communication, course of social impairment, social cognition, and key features of accompanying neuropsychiatric symptoms. We conclude by describing an approach for assessing social impairment across the lifespan.

Effect of two oral formulations of cannabidiol on responses to emotional stimuli in healthy human volunteers: pharmaceutical vehicle matters

OBJECTIVE

To compare plasma concentrations of cannabidiol (CBD) following oral administration of two formulations of the drug (powder and dissolved in oil), and to evaluate the effects of these distinct formulations on responses to emotional stimuli in healthy human volunteers.

METHODS

In a randomized, double-blind, placebo-controlled, parallel-group design, 45 healthy male volunteers were randomly assigned to three groups of 15 subjects that received either 150 mg of CBD powder; 150 mg of CBD dissolved in corn oil; or placebo. Blood samples were collected at different times after administration, and a facial emotion recognition task was completed after 150 min.

RESULTS

There were no significant differences across groups in the subjective and physiological measures, nor in the facial emotion recognition task. However, groups that received the drug showed statistically significant differences in baseline measures of plasma CBD, with a significantly greater difference in favor of the oil formulation.

CONCLUSION

When administered as a single 150-mg dose, neither formulation of oral CBD altered responses to emotional stimuli in healthy subjects. The oil-based CBD formulation resulted in more rapid achievement of peak plasma level, with an approximate fourfold increase in oral bioavailability.

Categorical perception of facial expressions in individuals with non-clinical social anxiety

BACKGROUND AND OBJECTIVES

According to the well-established categorical perception (CP) of facial expressions, we decode complicated expression signals into simplified categories to facilitate expression processing. Expression processing deficits have been widely described in social anxiety (SA), but it remains to be investigated whether CP of expressions are affected by SA. The present study examined whether individuals with SA had an interpretation bias when processing ambiguous expressions and whether the sensitivity of their CP was affected by their SA.

METHODS

Sixty-four participants (high SA, 30; low SA, 34) were selected from 658 undergraduates using the Interaction Anxiousness Scale (IAS). With the CP paradigm, specifically with the analysis method of the logistic function model, we derived the categorical boundaries (reflecting interpretation bias) and slopes (reflecting sensitivity of CP) of both high- and low-SA groups while recognizing angry-fearful, happy-angry, and happy-fearful expression continua.

RESULTS

Based on a comparison of the categorical boundaries and slopes between the high- and low-SA groups, the results showed that the categorical boundaries between the two groups were not different for any of the three continua, which means that the SA does not affect the interpretation bias for any of the three continua. The slopes for the high-SA group were flatter than those for the low-SA group for both the angry-fearful and happy-angry continua, indicating that the high-SA group is insensitive to the subtle changes that occur from angry to fearful faces and from happy to angry faces.

LIMITATIONS

Since participants were selected from a sample of undergraduates based on their IAS scores, the results cannot be directly generalized to individuals with clinical SA disorder.

CONCLUSIONS

The study indicates that SA does not affect interpretation biases in the processing of anger, fear, and happiness, but does modulate the sensitivity of individuals' CP when anger appears. High-SA individuals perceive angry expressions in a less categorical manner than the low-SA group, but no such difference was found in the perception of happy or fearful expressions.

Perceptions of social dominance through facial emotion expressions in euthymic patients with bipolar I disorder

The ability to accurately perceive dominance in the social hierarchy is important for successful social interactions. However, little is known about dominance perception of emotional stimuli in bipolar disorder. The aim of this study was to investigate the perception of social dominance in patients with bipolar I disorder in response to six facial emotional expressions. Participants included 35 euthymic patients and 45 healthy controls. Bipolar patients showed a lower perception of social dominance based on anger, disgust, fear, and neutral facial emotional expressions compared to healthy controls. A negative correlation was observed between motivation to pursue goals or residual manic symptoms and perceived dominance of negative facial emotions such as anger, disgust, and fear in bipolar patients. These results suggest that bipolar patients have an altered perception of social dominance that might result in poor interpersonal functioning. Training of appropriate dominance perception using various emotional stimuli may be helpful in improving social relationships for individuals with bipolar disorder.

Individual differences in emotion lateralisation and the processing of emotional information arising from social interactions

Previous research examining the possible association between emotion lateralisation and social anxiety has found conflicting results. In this paper two studies are presented to assess two aspects related to different features of social anxiety: fear of negative evaluation (FNE) and emotion regulation. Lateralisation for the processing of facial emotion was measured using the chimeric faces test. Individuals with greater FNE were more strongly lateralised to the right hemisphere for the processing of anger, happiness and sadness; and, for the processing of fearful faces the relationship was found for females only. Emotion regulation strategies were reduced to two factors: positive strategies and negative strategies. For males, but not females, greater reported use of negative emotion strategies is associated with stronger right hemisphere lateralisation for processing negative emotions. The implications for further understanding the neuropsychological processing of emotion in individuals with social anxiety are discussed.

All eyes on me?! Social anxiety and self-directed perception of eye gaze

To date, only little is known about the self-directed perception and processing of subtle gaze cues in social anxiety that might however contribute to excessive feelings of being looked at by others. Using a web-based approach, participants (n=174) were asked whether or not briefly (300 ms) presented facial expressions modulated in gaze direction (0°, 2°, 4°, 6°, 8°) and valence (angry, fearful, happy, neutral) were directed at them. The results demonstrate a positive, linear relationship between self-reported social anxiety and stronger self-directed perception of others' gaze directions, particularly for negative (angry, fearful) and neutral expressions. Furthermore, faster responding was found for gaze more clearly directed at socially anxious individuals (0°, 2°, and 4°) suggesting a tendency to avoid direct gaze. In sum, the results illustrate an altered self-directed perception of subtle gaze cues. The possibly amplifying effects of social stress on biased self-directed perception of eye gaze are discussed.

Differentiating high-functioning autism and social phobia

Both high-functioning autism (HFA) and social phobia (SP) involve profound social interaction deficits. Although these disorders share some similar symptoms, they are conceptualized as distinct. Because both HFA and SP are defined behaviorally, the degree of overlap between the two disorders may result in misinterpretation of symptoms. However, the deficits in each disorder differ, particularly in areas of social interaction, emotion recognition and expression, and communication. This paper reviews the literature that informs our current understanding of the behavioral overlaps and differences in HFA and SP. The review also addresses the implications of our current knowledge of these two disorders for differential diagnosis, treatment, and future research. Interdisciplinary, developmentally-oriented research may help extend current approaches to HFA and SP.

Influence of serotonin transporter genotype and catechol-O-methyltransferase Val158Met polymorphism on recognition of emotional faces

Monoamines, such as serotonin, dopamine, and norepinephrine, play a crucial role in the regulation of emotion processing and mood. In this study, we investigated how polymorphisms of the serotonin transporter (5-HTT) and catechol-O-methyltransferase (COMT) influence emotion recognition abilities. We recruited 88 female undergraduate students and assessed 5-HTT genotype and the COMT Val158Met polymorphism. The subjects completed two computerized tasks: The Penn Emotion Recognition Test (ER40) and the Penn Emotion Acuity Test (PEAT). For the ER40, we found that s-allele carriers performed significantly worse in the recognition of happy faces, but did better in the recognition of fearful faces, compared with homozygous l-carriers of the 5-HTT gene. Neither 5-HTT nor COMT genotypes influenced the ability to discriminate between different intensities of sadness or happiness on the PEAT. Moreover, there was no significant interaction between the two polymorphisms in their effect on performance on the ER40 or the PEAT.

Social anxiety disorder women easily recognize fearfull, sad and happy faces: the influence of gender

BACKGROUND

It has been suggested that individuals with social anxiety disorder (SAD) are exaggeratedly concerned about approval and disapproval by others. Therefore, we assessed the recognition of facial expressions by individuals with SAD, in an attempt to overcome the limitations of previous studies.

METHODS

The sample was formed by 231 individuals (78 SAD patients and 153 healthy controls). All individuals were treatment naïve, aged 18-30 years and with similar socioeconomic level. Participants judged which emotion (happiness, sadness, disgust, anger, fear, and surprise) was presented in the facial expression of stimuli displayed on a computer screen. The stimuli were manipulated in order to depict different emotional intensities, with the initial image being a neutral face (0%) and, as the individual moved on across images, the expressions increased their emotional intensity until reaching the total emotion (100%). The time, accuracy, and intensity necessary to perform judgments were evaluated.

RESULTS

The groups did not show statistically significant differences in respect to the number of correct judgments or to the time necessary to respond. However, women with SAD required less emotional intensity to recognize faces displaying fear (p=0.002), sadness (p=0.033) and happiness (p=0.002), with no significant differences for the other emotions or men with SAD.

CONCLUSIONS

The findings suggest that women with SAD are hypersensitive to threat-related and approval-related social cues. Future studies investigating the neural basis of the impaired processing of facial emotion in SAD using functional neuroimaging would be desirable and opportune.