Infants' differential social responses to attractive and unattractive faces.

Two studies were conducted to examine infants' social responses to attractive and unattractive faces. In Study 1, 60 12-month-olds interacted with a stranger who wore a professionally constructed attractive or unattractive mask. The infants showed more positive affective tone, less withdrawal, and more play involvement with the stranger in the attractive condition. In Study 2, 43 12-month-olds played with an attractive and an unattractive doll. The infants played significantly longer with the attractive doll. These results extend and amplify earlier findings showing that young infants exhibit visual preferences for attractive over unattractive faces. Both visual and behavioral preferences for attractiveness are evidently exhibited much earlier in life than was previously supposed. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Neural responses to facial and vocal expressions of fear and disgust

Neuropsychological studies report more impaired responses to facial expressions of fear than disgust in people with amygdala lesions, and vice versa in people with Huntington's disease. Experiments using functional magnetic resonance imaging (fMRI) have confirmed the role of the amygdala in the response to fearful faces and have implicated the anterior insula in the response to facial expressions of disgust. We used fMRI to extend these studies to the perception of fear and disgust from both facial and vocal expressions. Consistent with neuropsychological findings, both types of fearful stimuli activated the amygdala. Facial expressions of disgust activated the anterior insula and the caudate-putamen; vocal expressions of disgust did not significantly activate either of these regions. All four types of stimuli activated the superior temporal gyrus. Our findings therefore (i) support the differential localization of the neural substrates of fear and disgust; (ii) confirm the involvement of the amygdala in the emotion of fear, whether evoked by facial or vocal expressions; (iii) confirm the involvement of the anterior insula and the striatum in reactions to facial expressions of disgust; and (iv) suggest a possible general role for the perception of emotional expressions for the superior temporal gyrus.     

Social referencing: The infant's use of emotional signals from a friendly adult with mother present.

Previous studies have demonstrated that 1-yr-old infants look toward their mothers' facial expressions and use the emotional information conveyed. In this study, 46 1-yr-olds were confronted with an unusual toy in a context where an experimenter familiar to the infants posed either happy or fearful expressions and where their mothers were present but did not provide facial signals. Results indicate that most of the Ss (83%) referenced the familiarized stranger. Once the adult's facial signals were noted, the S's instrumental behaviors and expressive responses to the toy were influenced in the direction of the affective valence of the adult's expression. It is suggested that infants may be influenced by the emotional expressions of a much broader group of adults than has previously been recognized. (22 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Infants' exploratory responses to toys and people.

Conducted 2 experiments, each with 20 10-mo-old infants in an unfamiliar environment with their mothers. Ss were left free to approach and touch a distant, unfamiliar object-a person or a toy. Toys evoked prompt approach and sustained physical contact. Persons evoked little contact but more visual regard and smiling. Persons evoked still more smiles when responsive than when nonresponsive. There was no evidence of distress with either the persons or the toys. Results suggest that looking and smiling at persons serve an exploratory function similar to the touching and manipulating of inanimate objects. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Cardiovascular responses of embarrassment and effects of emotional suppression in a social setting.

The cardiovascular effects of embarrassment and of attempts to suppress embarrassment were examined. In 2 studies, embarrassment was associated with substantial increases in systolic and diastolic blood pressure which monotonically increased over a 2-minute embarrassment period. In contrast, heart rate (HR) rose significantly during the 1st minute of embarrassment but returned to baseline levels during the 2nd minute. This pattern of reactivity may be distinctive. The effects of trying to suppress emotion in an interpersonal situation were also tested. Relative to the no-suppression group, suppression participants showed greater blood pressure during embarrassment and during posttask recovery. Suppression did not significantly affect HR. Possible mechanisms for these results, including passive coping, are discussed. Nonverbal behavior was also examined. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

How attributional ambiguity shapes physiological and emotional responses to social rejection and acceptance.

The authors examined White and Black participants' emotional, physiological, and behavioral responses to same-race or different-race evaluators, following rejecting social feedback or accepting social feedback. As expected, in ingroup interactions, the authors observed deleterious responses to social rejection and benign responses to social acceptance. Deleterious responses included cardiovascular (CV) reactivity consistent with threat states and poorer performance, whereas benign responses included CV reactivity consistent with challenge states and better performance. In intergroup interactions, however, a more complex pattern of responses emerged. Social rejection from different-race evaluators engendered more anger and activational responses, regardless of participants' race. In contrast, social acceptance produced an asymmetrical race pattern--White participants responded more positively than did Black participants. The latter appeared vigilant and exhibited threat responses. Discussion centers on implications for attributional ambiguity theory and potential pathways from discrimination to health outcomes. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Processes underlying congruent and incongruent facial reactions to emotional facial expressions.

The present electromyographic study is a first step toward shedding light on the involvement of affective processes in congruent and incongruent facial reactions to facial expressions. Further, empathy was investigated as a potential mediator underlying the modulation of facial reactions to emotional faces in a competitive, a cooperative, and a neutral setting. Results revealed less congruent reactions to happy expressions and even incongruent reactions to sad and angry expressions in the competition condition, whereas virtually no differences between the neutral and the cooperation condition occurred. Effects on congruent reactions were found to be mediated by cognitive empathy, indicating that the state of empathy plays an important role in the situational modulation of congruent reactions. Further, incongruent reactions to sad and angry faces in a competition setting were mediated by the emotional reaction of joy, supporting the assumption that incongruent facial reactions are mainly based on affective processes. Additionally, strategic processes (specifically, the goal to create and maintain a smooth, harmonious interaction) were found to influence facial reactions while being in a cooperative mindset. Now, further studies are needed to test for the generalizability of these effects. (PsycINFO Database Record (c) 2011 APA, all rights reserved)     

Infants' responses to their mothers' expressions of joy and sadness.

On separate visits to the laboratory, 36 nine-month-old infants (18 boys and 18 girls) watched their mothers express joy or sadness, facially and vocally, during a 2-min emotion-induction period. After the induction period, mothers continued to express joy or sadness while their infants played with four sets of toys. Infant emotion expressions were analyzed using the Max (Izard, 1979a) and Affex (Izard, Dougherty, & Hembree, 1983) coding systems, and infant play behavior was coded with a system developed by Belsky and Most (1981). The amount of time that the infants looked at their mothers was also measured. Findings were generally consistent with differential emotions theory (Izard, 1979b). The infants expressed more joy and looked longer at their mothers during the joy condition and they showed more sadness, anger, and gaze aversion during the sadness condition. The infants engaged in more play behavior in the joy condition than in the sadness condition. Regression analyses revealed several significant relations between infants' gaze behavior, emotion expressions, and play behavior. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Infants' use of attentional cues to identify the referent of another person's emotional expression

This study explored 14- and 18-month-old infants' ability to identify the target of an emotional display. In the visual task, infants were presented with 2 boxes. Each box contained an object that could be identified by opening the box lid and looking inside. In the tactile task, the objects had to be pulled out of the boxes before they could be seen. An experimenter expressed happiness as she looked or put her hand inside one box, and disgust as she repeated this action with the other box. Infants were then allowed to explore the boxes. Infants touched both boxes but preferred to search for the happy object. Thus, regardless of age or task, infants identified the target of each emotional display as something inside a box and not the box itself. Infants appeared to use the experimenter's attentional cues (gaze and action) to interpret her emotional signals and behaved as if they understood that she was communicating about the objects.     

Engaging strangers in proximal interaction: Infants' social initiative.

Observed 72 infants aged 12, 18, and 24 mo in the presence of their mothers and 2 adult female strangers to assess their willingness to initiate proximal interaction (PI) with unfamiliar adults. Mothers and strangers were asked to be warmly responsive to infant overtures but not to invite interaction from the infant. A majority of the infants at the 3 ages initiated PI with one or both strangers, often repeatedly. For those who engaged in 2 or more PI bouts with the strangers, a significant upward trend in bout duration and intensity was noted. Older infants gave more toys to the strangers and initiated more mutual play. Stranger–mother distance affected amount of proximity, not PI. Mother–stranger conversation was associated with less PI with the conversing stranger. At all ages infants sought more PI with their mothers than with the strangers. Although infants initiated an appreciable amount of PI with the strangers during the 40-min observation, comparison with other studies indicates that a stranger who takes the initiative by inviting play can establish more rapport much sooner. (20 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Sex differences in emotional responses to erotic literature.

Compared the effect on male and female undergraduates (n = 112) of reading an erotic passage from a novel; control Ss (n = 112) read a passage from a psychology textbook. Men reported more sexual arousal, interest, and joy in response to the erotic passage, and women reported more disgust. Differences were significant but not large. The sexes did not differ as to fear or guilt reactions. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Is this happiness I see? Biases in the identification of emotional facial expressions in depression and social phobia.

The present study was designed to examine the operation of depression-specific biases in the identification or labeling of facial expression of emotions. Participants diagnosed with major depression and social phobia and control participants were presented with faces that expressed increasing degrees of emotional intensity, slowly changing from a neutral to a full-intensity happy, sad, or angry expression. The authors assessed individual differences in the intensity of facial expression of emotion that was required for the participants to accurately identify the emotion being expressed. The depressed participants required significantly greater intensity of emotion than did the social phobic and the control participants to correctly identify happy expressions and less intensity to identify sad than angry expressions. In contrast, social phobic participants needed less intensity to correctly identify the angry expressions than did the depressed and control participants and less intensity to identify angry than sad expressions. Implications of these results for interpersonal functioning in depression and social phobia are discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Social context effects on facial activity in a negative emotional setting.

Evidence for A. J. Fridlund's (e.g., 1994) "behavioral ecology view" of human facial expression comes primarily from studies of smiling in response to positive emotional stimuli. Smiling may be a special case because it clearly can, and often does serve merely communicative functions. The present study was designated (a) to assess the generalizability of social context effects to facial expressions in response to negative emotional stimuli and (b) to examine whether these effects are mediated by social motives, as suggested by the behavioral ecology view. Pairs of friends or strangers viewed film clips that elicited different degrees of sad affect, in either the same or a different room; a control group participated alone. Dependent variables included facial activity, subjective emotion, and social motives. Displays of sadness were influenced by stimulus intensity and were lower in all social conditions than in the alone condition. Unexpectedly, social context effects were also found for smiling. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Detecting emotional faces and features in a visual search paradigm: Are faces special?

In 2 experiments, participants were presented schematic faces with emotional expressions (threatening, friendly) in a neutral-faces context or neutral expressions in an emotional-faces context. These conditions were compared with detection performance in displays containing key features of emotional faces not forming the perceptual gestalt of a face. Supporting the notion of a threat detection advantage, Experiment 1 found that threatening faces were faster detected than friendly faces, whereas no difference emerged between the corresponding feature conditions. Experiment 2 increased task difficulty with a backward masking procedure and found corresponding results. In neither of the studies was the threat detection advantage associated with reduced accuracy. However, features were, in general, detected faster than faces when task difficulty was high. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Rorschach shading responses: from a printer's error to an integrated psychoanalytic paradigm

Beginning with a review of the historical development, the current status, and the empirical foundations of Rorschach shading responses, I then explore how the 4 psychologies of psychoanalysis can help generate inferences about clinical issues suggested by these responses. The contributions and limitations of this theory-based approach to understanding shading responses are demonstrated and discussed through clinical examples and a review of theoretical concepts and empirical findings.     

Orienting and maintenance of gaze to facial expressions in social anxiety.

In 2 experiments, the authors tested predictions from cognitive models of social anxiety regarding attentional biases for social and nonsocial cues by monitoring eye movements to pictures of faces and objects in high social anxiety (HSA) and low social anxiety (LSA) individuals. Under no-stress conditions (Experiment 1), HSA individuals initially directed their gaze toward neutral faces, relative to objects, more often than did LSA participants. However, under social-evaluative stress (Experiment 2), HSA individuals showed reduced biases in initial orienting and maintenance of gaze on faces (cf. objects) compared with the LSA group. HSA individuals were also relatively quicker to look at emotional faces than neutral faces but looked at emotional faces for less time, compared with LSA individuals, consistent with a vigilant-avoidant pattern of bias. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Counselor trainee emotional responses to initial counseling-interview stress.

Changes in emotionality as measured by the Multiple Affect Adjective Check List and physiological measures (systolic and diastolic blood pressure, pulse rate, and digital sweat index) were obtained from 37 prepracticum graduate students in 4 different classes during prestress, stress, and poststress periods. Stress was measured immediately prior to the initial interview of a client in a supervised laboratory setting. Significant differences were found on 6 of the 7 dependent measures across conditions. Intercorrelational matrices showed (a) consistently high correlations between pencil-and-paper measures, (b) consistently low correlations between the various physiological measures, and (c) consistently low correlations between pencil-and-paper measures and physiological measures of emotionality. The counselor trainees reported that they were most anxious because of the idea that they had to do a good job, concern over what the client might think about them, the probability that they might do poorly, and the consequence of doing a poor job. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Effects of mu and delta opioid agonists and antagonists on affective vocal and reflexive pain responses during social stress in rats

The present experiments evaluated the influence of intraventricular mu and delta opioid receptors on affective vocal and reflexive responses to aversive stimuli in socially inexperienced, as well as defensive and submissive responses in defeated, adult male Long-Evans rats. Defeat stress consisted of: (1) an aggressive confrontation in which the experimental intruder rat exhibited escape, defensive and submissive behaviors [i.e., upright, supine postures and ultrasonic vocalizations (USV)], and subsequently, (2) protection from the resident stimulus rat with a wire mesh screen for 10-20 min. Defeat stress was immediately followed by an experimental session with tactile startle (20 psi). The mu opioid receptor agonists morphine (0.1-0.6 microg i.c.v.) and [D-Ala2-N-Me-Phe4-Gly5-ol]-enkephalin (DAMGO; 0.01-0.3 microg i.c.v.), and the delta opioid receptor agonist [D-Pen2,5]-enkephalin (DPDPE; 10-100 microg i.c.v.) dose-dependently decreased startle-induced USV and increased tail-flick latencies in socially inexperienced and defeated rats. Of greater interest, morphine, DAMGO and DPDPE increased the occurrence of the submissive crouch posture, and defeated rats were more sensitive than socially inexperienced rats to the startle-induced USV-suppressive and antinociceptive effects of morphine and DPDPE. The antinociceptive effects of DAMGO were likewise obtained at lower doses in defeated rats. Finally, the USV-suppressive effects of morphine and DAMGO were reversed with the mu receptor antagonist naltrexone (0.1 mg/kg i.p.), but the USV-suppressive effects produced by DPDPE were not reversed with the delta receptor antagonist naltrindole (1 mg/kg i.p.). These results confirm mu, but not delta opioid receptor activation as significant in affective vocal, passive-submissive behavior, as well as reflexive antinociception. Furthermore, similar to previous studies with restraint and electric shock stress, the facilitation of mu opioid effects on vocal responses and antinociception is consistent with the proposal that defeat stress activated endogenous opioid mechanisms.     

Behavioral and electrocardiographic responses to social stress in male rats

Telemetry ECGs were recorded from Wistar male rats during social stress induced by exposure to aggressive lactating female rats. Behavioral response to maternal attack was evaluated in terms of relative duration of passive submissive (p/s) and active/nonsubmissive (a/ns) patterns. A decrease of R-R interval (R-R) compared to baseline conditions was found, significantly more pronounced than that observed in control animals exposed just to novel environment. R-R variability during social stress was positively correlated with the amount of p/s behavior. R-R fluctuations, episodes of II degree A-V block, and ventricular arrhythmias were also observed. Most R-R fluctuations and II degree A-V blocks were temporally associated with phases of p/s behavior and periods of high R-R variability. Ventricular arrhythmias generally appeared during a/ns behavior and were temporally linked with periods of low R-R variability. Ventricular arrhythmias, low R-R variability, and concomitant a/ns behavior might be related to an increased sympathetic activity. R-R fluctuations and II degree A-V blocks, associated with high R-R variability and p/s behavior, might be related to a predominant inhibitory effect of vagal activation (accentuated antagonism).     

Inhibition of return to social signals of fear.

The present study examined whether inhibition of return (IOR) is modulated by the fear relevance of the cue. Experiment 1 found similar magnitude of IOR was produced by neutral and fear faces and luminance matched cues. To allow a more sensitive measure of endogenously directed attention, Experiment 2 removed a central reorienting cue and more precisely measured the time course of IOR. At stimulus onset asynchronies (SOAs) of 500, 1,000 and 1,500 ms, fear face and luminance matched cues resulted in similar IOR. These findings suggest that IOR is triggered by event onsets and disregards event value. Views of IOR as an adaptive "foraging facilitator," whereby attention is guided to promote optimal sampling of important environmental events, are discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved)