Subtle Expressions Research Articles

Presidential speechmaking style: Emotional response to micro-expressions of facial affect

Research considering the effect of Presidential speech making style shows individuals are likely to attend to and be emotionally affected by the facial expressions of leaders, especially those that are inappropriate for the context. In this study we tested how rapid and subtle expressions of facial affect (i.e., expressions of less than one-second, often termed micro-expressions) in speeches by a political leader impacts participants’ emotional state. We do this by removing seven brief expressions (less than one-second) from a nearly twelve minute televised speech by President George H. W. Bush concerning the 1990 commitment of US military in response to Iraq’s invasion of Kuwait. FACS coding identified all these expressions as containing a component of smiling (lip corner puller: AU12), in some cases with the addition of other facial movements (sometimes associated with anger and/or disgust). Experiments carried out on 206 university undergraduates showed emotional state was altered as a result of these micro-expressions when the control (unaltered speech) and experimental group (micro-expressions removed from speech) were compared. Specifically, participants who viewed the micro-expressions felt less threatened and less angry. Thus, facial expression (even very brief micro-expressions) can have a significant impact on the receiver of a political speech.

Subtle facial expression recognition using motion magnification

This paper proposes a novel method for subtle facial expression recognition that uses motion magnification to transform subtle expressions into corresponding exaggerated ones. Motion magnification consists of four steps: First, active appearance model (AAM) fitting extracts 70 facial feature points in the face image sequence. Second, the face image sequence is aligned using the three feature points (two eyes and nose tip). Third, the motion vectors of 27 feature points are estimated using the feature point tracking method. Finally, exaggerated facial expressions are obtained by magnifying the motion vectors of the 27 feature points. After motion magnification, the exaggerated facial expressions are recognized as follows: first, the shape and appearance features are obtained by projecting the exaggerated facial expression image to the AAM shape and appearance model. Second, support vector machines (SVM) are used to classify shape and appearance features. Experimental results show that proposed subtle facial recognition rate is 88.125% for the 80 facial expression images in the SFED2007 database.

Judging the intensity of facial expressions of emotion: Depression-related biases in the processing of positive affect.

A forced-choice intensity judgment task was used to investigate biases in the processing of subtle expressions of emotion in participants with major depressive disorder (MDD). Participants were presented with 2 pictures of the same actor side by side, either depicting a neutral and a subtle emotional expression or depicting a subtle positive and a subtle negative expression. Participants were asked to indicate which of the 2 pictures showed the stronger emotion. Compared with participants with social anxiety disorder (SAD) and with never-disordered controls (CTLs), participants with MDD were less likely to judge subtle happy expressions as more intense than neutral expressions. In addition, compared with the CTL participants, participants who had MDD and participants who had SAD were less likely to judge subtle happy expressions to be more intense than negative expressions. Biases in the judgment of the intensity of subtle expressions of positive affect could play an important role in the interpersonal difficulties that are associated with depression.

Classifying pretended and evoked facial expressions of positive and negative affective states using infrared measurement of skin temperature

Earlier researchers were able to extract the transient facial thermal features from thermal infrared images (TIRIs) to make binary distinctions between the expressions of affective states. However, effective human-computer interaction would require machines to distinguish between the subtle facial expressions of affective states. This work, for the first time, attempts to use the transient facial thermal features for recognizing a much wider range of facial expressions. A database of 324 time-sequential, visible-spectrum, and thermal facial images was developed representing different facial expressions from 23 participants in different situations. A novel facial thermal feature extraction, selection, and classification approach was developed and invoked on various Gaussian mixture models constructed using: neutral and pretended happy and sad faces, faces with multiple positive and negative facial expressions, faces with neutral and six (pretended) basic facial expressions, and faces with evoked happiness, sadness, disgust, and anger. This work demonstrates that (1) infrared imaging can be used to observe the affective-state-specific facial thermal variations, (2) pixel-grey level analysis of TIRIs can help localise significant facial thermal feature points along the major facial muscles, and (3) cluster-analytic classification of transient thermal features can help distinguish between the facial expressions of affective states in an optimized eigenspace of input thermal feature vectors. The observed classification results exhibited influence of a Gaussian mixture model's structure on classifier-performance. The work also unveiled some pertinent aspects of future research on the use of facial thermal features in automated facial expression classification and affect recognition.

Stigmatization as an Environmental Risk in Schizophrenia: A User Perspective

Stigmatization represents a chronic negative interaction with the environment that most people with a diagnosis of schizophrenia face on a regular basis. Different types of stigma-public stigma, self--stigma, and label avoidance--may each have detrimental effects. In the present article, the possible consequences of stigma on onset, course, and outcome of schizophrenia are reviewed. Stigmatization may be conceptualized as a modifiable environmental risk factor that exerts its influence along a variety of different pathways, not only after the illness has been formally diagnosed but also before, on the basis of subtle behavioral expressions of schizophrenia liability. Integrating stigma-coping strategies in treatment may represent a cost-effective way to reduce the risk of relapse and poor outcome occasioned by chronic exposure to stigma. In addition, significant gains in quality of life may result if all patients with schizophrenia routinely receive information about stigma and are taught to use simple strategies to increase resilience vis-à-vis adverse, stigmatizing environments.

Influence of intensity on children’s sensitivity to happy, sad, and fearful facial expressions

Most previous studies investigating children’s ability to recognize facial expressions used only intense exemplars. Here we compared the sensitivity of 5-, 7-, and 10-year-olds with that of adults ( n = 24 per age group) for less intense expressions of happiness, sadness, and fear. The developmental patterns differed across expressions. For happiness, by 5 years of age, children were as sensitive as adults even to low intensities. For sadness, by 5 years of age, children were as accurate as adults in judging that the face was expressive (i.e., not neutral), but even at 10 years of age, children were more likely to misjudge it as fearful. For fear, children’s thresholds were not adult-like until 10 years of age, and children often confused it with sadness at 5 years of age. For all expressions, including even happy expressions, 5- and 7-year-olds were less accurate than adults in judging which of two expressions was more intense. Together, the results indicate that there is slow development of accurate decoding of subtle facial expressions.

Recognising subtle emotional expressions: The role of facial movements

Two studies investigated the importance of dynamic temporal characteristic information in facilitating the recognition of subtle expressions of emotion. In Experiment 1 there were three conditions, dynamic moving sequences that showed the expression emerging from neutral to a subtle emotion, a dynamic presentation containing nine static stills from the dynamic moving sequences (ran together to encapsulate a moving sequence) and a First–Last condition containing only the first (neutral) and last (subtle emotion) stills. The results showed recognition was significantly better for the dynamic moving sequences than both the Dynamic-9 and First–Last conditions. Experiments 2a and 2b then changed the dynamics of the moving sequences by speeding up, slowing down or disrupting the rhythm of the motion sequences. These manipulations significantly reduced recognition, and it was concluded that in addition to the perception of change, recognition is facilitated by the characteristic muscular movements associated with the portrayal of each emotion.

Jolly Dogs and McSpaghetti: Anthropological Reflections on Global/Local Fast-Food Competition in the Philippines

ABSTRACT The Philippines' fast-food scene presents a compelling model of how Western market forces such as globalization and neoliberalism can have positive impacts on local populations. For example, competition between multinational brands (McDonald's) and their local counterparts (Jollibee) increasingly informs Filipino cultural/political identity. Jollibee's bellwether position in the country's thriving fast-food trade has become an intense source of national pride. Innovative menu items, aggressive marketing, and subtle expressions of postcolonial resistance all contribute to Jollibee's dominance over foreign companies, especially McDonald's. Ethnographic data from a provincial Philippine city in 2005–2006 reveals how smaller domestic players effectively compete against global retail giants.

Role of motion signals in recognizing subtle facial expressions of emotion

Three studies investigated the importance of movement for the recognition of subtle and intense expressions of emotion. In the first experiment, 36 facial emotion displays were duplicated in three conditions either upright or inverted in orientation. A dynamic condition addressed the perception of motion by using four still frames run together to encapsulate a moving sequence to show the expression emerging from neutral to the subtle emotion. The multi-static condition contained the same four still presented in succession, but with a visual noise mask (200 ms) between each frame to disrupt the apparent motion, whilst in the single-static condition, only the last still image (subtle expression) was presented. Results showed a significant advantage for the dynamic condition, over the single- and multi-static conditions, suggesting that motion signals provide a more accurate and robust mental representation of the expression. A second experiment demonstrated that the advantage of movement was reduced with expressions of a higher intensity, and the results of the third experiment showed that the advantage for the dynamic condition for recognizing subtle emotions was due to the motion signal rather than additional static information contained in the sequence. It is concluded that motion signals associated with the emergence of facial expressions can be a useful cue in the recognition process, especially when the expressions are subtle.

2-D traveltime and waveform inversion for improved seismic imaging: Naga Thrust and Fold Belt, India

SUMMARY Exploration along the Naga Thrust and Fold Belt in the Assam province of Northeast India encounters geological as well as logistic challenges. Drilling for hydrocarbons, traditionally guided by surface manifestations of the Naga thrust fault, faces additional challenges in the northeast where the thrust fault gradually deepens leaving subtle surface expressions. In such an area, multichannel 2-D seismic data were collected along a line perpendicular to the trend of the thrust belt. The data have a moderate signal-to-noise ratio and suffer from ground roll and other acquisition-related noise. In addition to data quality, the complex geology of the thrust belt limits the ability of conventional seismic processing to yield a reliable velocity model which in turn leads to poor subsurface image. In this paper, we demonstrate the application of traveltime and waveform inversion as supplements to conventional seismic imaging and interpretation processes. Both traveltime and waveform inversion utilize the first arrivals that are typically discarded during conventional seismic processing. As a first step, a smooth velocity model with long wavelength characteristics of the subsurface is estimated through inversion of the first-arrival traveltimes. This velocity model is then used to obtain a Kirchhoff pre-stack depthmigrated image which in turn is used for the interpretation of the fault. Waveform inversion is applied to the central part of the seismic line to a depth of ∼1 km where the quality of the migrated image is poor. Waveform inversion is performed in the frequency domain over a series of iterations, proceeding from low to high frequency (11‐19 Hz) using the velocity model from traveltime inversion as the starting model. In the end, the pre-stack depth-migrated image and the waveform inversion model are jointly interpreted. This study demonstrates that a combination of traveltime and waveform inversion with Kirchhoff pre-stack depth migration is a promising approach for the interpretation of geological structures in a thrust belt.

Syria under the Spotlight: Television satire that is revolutionary in form, reformist in content

Picture the scene. We are inside Syria’s monolithic Education Ministry witnessing a highly charged committee meeting, convened to tackle one of the country’s most entrenched problems: overcrowding at state universities. All too willing to apply an absurdly cold logic in the matter, a logic that is likely familiar to Syrian viewers at home, the committee plans to make university tests so difficult that hardly any students are able to pass. The committee members are enthusiastic as they review their options but tension arises as they compete for the approval of the minister, who chairs the session. A female bureaucrat who offers her proposals on how to wage psychological war against the students giggles and squirms like someone receiving physical or sexual pleasure from the idea of failing so many young people. Meanwhile, the committee members exhibit other subtle nervous tics and expressions that add a garish unease to the proceedings. The sketch cuts quickly to examination day, and the proctors are Nazi-like characters who terrorize the students into abject fear and fainting spells. A male student is caught cheating after a miles-long crib sheet inside his clothing is discovered; a female student screams at her oppressor: “If you’re really a teacher, then YOU answer these questions!!”

Effects of Age and Emotional Intensity on the Recognition of Facial Emotion

Older adults have a specific deficit in their ability to identify some negative facial emotions. The present study investigated the influence of intensity of expression on 40 young and 40 older adults' recognition of facial expressions of emotion. Older adults showed no impairment in the perception of low-intensity subtle expressions of happiness, surprise, and disgust. However, older adults were worse at recognizing all intensities of sadness, anger, and fear, with the greatest impairment at 50% intensity. Observed age differences were not influenced by covarying general facial processing skills, but were substantially reduced when a measure of general cognitive functioning was covaried. The current study suggests that age differences in identifying facial expressions of emotion are not caused by decreasing visual perceptual abilities, but may partially overlap with general cognitive changes.

The effect of dynamics on identifying basic emotions from synthetic and natural faces

The identification of basic emotions (anger, disgust, fear, happiness, sadness and surprise) has been studied widely from pictures of facial expressions. Until recently, the role of dynamic information in identifying facial emotions has received little attention. There is evidence that dynamics improves the identification of basic emotions from synthetic (computer-animated) facial expressions [Wehrle, T., Kaiser, S., Schmidt, S., Scherer, K.R., 2000. Studying dynamic models of facial expression of emotion using synthetic animated faces. Journal of Personality and Social Psychology 78 (1), 105–119.]; however, similar result has not been confirmed with natural human faces. We compared the identification of basic emotions from both natural and synthetic dynamic vs. static facial expressions in 54 subjects. We found no significant differences in the identification of static and dynamic expressions from natural faces. In contrast, some synthetic dynamic expressions were identified much more accurately than static ones. This effect was evident only with synthetic facial expressions whose static displays were non-distinctive. Our results show that dynamics does not improve the identification of already distinctive static facial displays. On the other hand, dynamics has an important role for identifying subtle emotional expressions, particularly from computer-animated synthetic characters.

Positive Mood Induction and Facial Affect Recognition among Students at Risk for Mania

Previous research has suggested that bipolar disorder is characterized by a state-dependent decrease in the ability to recognize facial affect during mania. It remains unclear, though, whether people who are only vulnerable to the disorder show these changes in facial affect recognition. It is also unclear whether minor shifts in mood affect the recognition of facial emotion. Thus, this study examined the effects of positive mood induction on the facial affect recognition of undergraduates vulnerable to mania. Fifty-two undergraduates completed the Hypomanic Personality Scale, and also completed a measure of their ability to recognize affect in pictures of faces. After receiving false success feedback on another task to induce a positive mood, they completed the facial affect recognition measure again. Although we expected to find a relationship between higher Hypomanic Personality Scale (HPS) scores and an impaired ability to recognize negative facial affect after a positive mood induction, this was not found. Rather, there was a significant interaction between HPS scores and happiness level, such that individuals with higher scores on the HPS who also reported higher levels of happiness were particularly adept at identifying subtle facial expressions of happiness. This finding expands a growing literature linking manic tendencies to sensitivity to positive stimuli and demonstrates that this sensitivity may have bearing on interpersonal interactions.

Association of adrenal medullar and cortical nodular hyperplasia

Arterial hypertension of adrenal etiology is mainly attributed to primary hyperaldosteronism. However, subtle expressions of hyperadrenergic or glucocorticoid excess can also generate arterial hypertension. The present report describes two hypertensive patients cataloged as resistant essential hypertensives, in whom adrenal masses were found incidentally, who highlight the need to recognize these tenuous clinical or laboratory presentations. Case 1 was a 50-yr-old female with hyperadrenergic hypertension associated to a left adrenal node, normal cortisol and aldosterone:renin ratio, marginally increased urinary normetanephrine, and a positive 131I MIBG radioisotope scan. Adrenalectomy normalized blood pressure and urinary metanephrines. Pathology showed a hyperplastic adrenal medulla associated to a multinodular cortical hyperplasia. Case 2 was a 62- yr-old female with progressive hypertension, a slight Cushing phenotype, non-suppressible hypercortisolism, normal urinary metanephrines, and bilateral adrenal nodes. Bilateral adrenalectomy and subsequent replacement normalized blood pressure and phenotypic stigmata. Pathology demonstrated bilateral cortical multinodular hyperplasia and medullary hyperplasia. The clinical study in both patients was negative for MEN. The apparently rare association of cortical and medullary lesions presented by both patients is probably overlooked in routine pathology exams, but should be meticulously searched since the crosstalk between the adrenal cortex and medulla may prompt dual abnormalities.

Functional asymmetries in the stepping response of the human newborn: a kinematic approach

In order to investigate subtle expressions of functional asymmetries in newborn leg movements, kinematic registrations were made on a sample of 40 healthy fullterm newborn infants during performance of the stepping response. Time-position data were collected from markers attached to the hip, knee and ankle joints of the left and right leg, and movements of both legs recorded simultaneously. Findings included evident side differences in terms of smoother trajectories of the right leg as a consequence of less movement segmentation compared to the left leg. Additionally, analyses of intralimb coordination revealed side differences with regard to stronger ankle-knee couplings and smaller phase shifts in the right leg. The findings suggest that asymmetries in newborn stepping responses are present in terms of spatio-temporal parameters and intralimb coordination. No evidence of a lateral preference in terms of frequency of the first foot moved was found. The present study adds new understanding to the lateralized attributes of the stepping response in the human newborn and as such points to new directions of research on the nature of laterality in the future.

A detailed investigation of facial expression processing in congenital prosopagnosia as compared to acquired prosopagnosia

Whether the ability to recognize facial expression can be preserved in the absence of the recognition of facial identity remains controversial. The current study reports the results of a detailed investigation of facial expression recognition in three congenital prosopagnosic (CP) participants, in comparison with two patients with acquired prosopagnosia (AP) and a large group of 30 neurologically normal participants, including individually age- and gender-matched controls. Participants completed a fine-grained expression recognition paradigm requiring a six-alternative forced-choice response to continua of morphs of six different basic facial expressions (e.g. happiness and surprise). Accuracy, sensitivity and reaction times were measured. The performance of all three CP individuals was indistinguishable from that of controls, even for the most subtle expressions. In contrast, both individuals with AP displayed pronounced difficulties with the majority of expressions. The results from the CP participants attest to the dissociability of the processing of facial identity and of facial expression. Whether this remarkably good expression recognition is achieved through normal, or compensatory, mechanisms remains to be determined. Either way, this normal level of performance does not extend to include facial identity.

Against the notion of a ‘new racism’

AbstractDespite the de jure equality achieved in the second half of the 20th century, racial discrimination and racist political movements persist. This has encouraged the orthodoxy that a ‘new racism’ serves as an ideological basis of contemporary white investment in racial inequality in Western Europe, North America and Australasia. It is argued that this ‘new racism’ is shown in more subtle and indirect formal expressions, such as a denial of societal discrimination, rather than the once popular expressions of ‘old‐fashioned’ genetic inferiority and segregationism. In opposition to this conceptualization, I review quantitative and qualitative studies from social psychology, sociology and political science, as well as historical analyses, to show that the ‘old‐fashioned’ formal expression of racism was not especially popular before de jure racial equality and is not especially unpopular now. I also show that there is nothing new about formal expressions that criticize cultural difference or deny societal discrimination. Thus, there is greater historical continuity in racism than the notion of a ‘new racism’ allows. This suggests that the first task of a critical social psychology of racism is a proper conceptualization of racism itself. Copyright © 2005 John Wiley & Sons, Ltd.

A National Prospective Study on Childhood Celiac Disease in the Netherlands 1993–2000: An Increasing Recognition and a Changing Clinical Picture

To investigate prospectively whether the incidence of diagnosed celiac disease (CD) is increasing in the Netherlands and whether the clinical presentation is changing. All newly diagnosed cases of CD throughout the Netherlands were registered prospectively from 1993 to 2000. The clinical picture was compared with that noted in our former study (1975-1990). The overall incidence rate of CD was 0.81/1000 live births, with a linear increase from 1993 to 2000. There was a significant increase in the number of subjects with partial villous atrophy of the small bowel mucosa. The clinical presentation has changed significantly: abdominal distention, chronic diarrhea, and failure to thrive are less common, and more children presented with weight < P10, abdominal pain, and lassitude. The median age at diagnosis also increased. The recognition of childhood CD in the Netherlands has increased significantly during the last few years, and the clinical picture has changed as well. Our data may indicate an increasing awareness of the Dutch doctors working in Child Public Health, general practitioners, and pediatricians to recognize more subtle expressions of the disease.

Insider/Outsider Belongings: Traversing the Borders of Whiteness in Early Childhood

The power associated with identities is frequently negotiated within children's narratives and play scripts. When children engage in text production, they dispute and mediate their interpersonal and ideological relations. In this article, the author outlines an understanding of ‘whiteness' as a form of power or capital that is accumulated through certain social practices and a feature of children's social worlds. In this framework, the practices of whiteness that maintain hegemonic power rely on subtle expressions of an established sense of entitlement and governmental power. These expressions operate in collusion with the occasional use of racist epithets. Data collected in teacher research are read through this theoretical lens to reveal how the practice of ‘whiteness' may be seen to operate in children's shared narratives and in pedagogical interventions. Under scrutiny are a number of interactions including a jointly constructed ‘autobiography’ that contains all the typical elements of a young child's heroic fantasies: home alone, able to recognise danger, the child outwits, outmanoeuvres and overpowers the baddie. The narratives function as a technology of race and of whiteness in particular. The children are intensely engaged with each other's social imaginaries, and one of the remarkable features of these interactions is a propensity for resistance shown by the children as they dispute their identity positioning within the storylines.