Role Of Social Perception Research Articles

Beyond Smiles: Static Expressions in Maxillary Protrusion and Associated Positivity.

Smiles play an important role in social perception. However, it is unclear whether a similar role is played by static facial features associated with smiles (e.g., stretched mouth and visible teeth). In dental science, maxillary dental protrusions increase the baring of the teeth and thus produce partial facial features of a smile even when the individual is not choosing to smile, whereas mandibular dental protrusions do not. We conducted three experiments to assess whether individuals ascribe positive evaluations to these facial features, which are not genuine emotional expressions. In Experiment 1, participants viewed facial photographs of maxillary and mandibular protrusions and indicated the smiling and emotional status of the faces. The results showed that, while no difference was observed in participants’ perception of the presence of a smile across both types of dental protrusion, participants felt more positive to faces with maxillary than mandibular protrusions. In Experiment 2, participants completed an Implicit Association Test (IAT) test measuring implicit attitudes toward faces with maxillary vs. mandibular protrusions. The results showed that participants had more positive attitude toward faces with maxillary than mandibular protrusions. In Experiment 3, individuals with either maxillary or mandibular protrusions completed the same IAT test to assess whether any preference would be affected by in-group/out-group preferences. The results showed both groups had more positive attitudes toward faces with maxillary protrusion, indicating that this preference is independent of the group effect. These findings suggest that facial features associated with smiles are viewed positively in social situations. We discuss this in terms of the social-function account.

How online trust evolves over time: The role of social perception

AbstractUsing customer service scenarios in an online retail context, the current study examines how cognitive and affective trust develop over time and how service failure negatively impacts trust, along with the trust restoration opportunities provided by recovery. Study 1 findings reveal that the relationship between Web site social perception and affective trust is stronger for repeat visitors than for first‐time visitors. Study 2 findings indicate that failure timing and recovery duration play important roles in service failure situations. Overall, the results demonstrate that consumer cognitive and affective trust develop through the number of interactions with a retail Web site over time and that increased Web site social perceptions facilitate the trust‐building process.

Infants’ cortical processing of biological motion configuration – A fNIRS study

Biological motion perception is a key component of action perception contributing to social cognition in crucial ways. Contemporary neuroimaging studies show that biological motion is processed differently in the human brain from other types of motion. In particular, the right posterior Superior Temporal Sulcus (rpSTS), an area known for its central role in social perception, has been consistently associated with the perception of biological motion in the mature brain. By contrast, most findings investigating the development of biological motion perception in infancy come from behavioral studies, and far less is known regarding the right STS’ role in processing biological motion.The current study used fNIRS to measure brain activation to biological motion in the rSTS region of 7–8-month-old infants. Infants were presented with two conditions: an approaching coherent motion of a person walking (coherent point-light-walker, PLW); and a spatially scrambled version of this display, where the global configuration of a person walking was disrupted (scrambled PLW).We found a functional activation, i.e., a significant increase in HbO2 concentration in relation to baseline, in the right middle-posterior temporal cortex only when infants viewed the coherent point-light-walker. This activation statistically differed from the scrambled point-light-walker, and no significant activations were found for viewing the scrambled motion.Our study adds evidence pointing to rSTS’ sensitivity to the global human configuration in biological motion processing during infancy. The rSTS seems thus to become functionally specialized in biological motion configuration as early as at 7–8 months of age.

Противодействие коррупции: социально-правовой аспект

The article covers the range of issues on the efficiency of combating corruption from the perspective of taking into account the role of social perception of legal norms. The author lays emphasis on the perception of corruptive relations as an object of legal pressure, and the law, as means for the implementation of the anti-corruption policy through their social nature. The author acknowledges the issuance of specialized laws and regulations to be a restricted measure, and states the need in ensuring effectiveness of the institutionalized anti-corruption norms. In this respect the author introduces the concept of social reality as a key attribute necessary to ensure the efficiency of law-making and implementation of law-enforcement processes. The article pays special attention to the problems of appearance of social alienation and formation of a consumer society, which are very topical for modern Russia. Besides, as part of the identified range of issues, the author examines taking into account of structural specific characteristics of the existing society, and the factor of social consciousness inertia which collectively considerably influence the efficiency of legal anti-corruption initiatives.

Sharing Social Touch in the Primary Somatosensory Cortex

Touch has an emotional and communicative meaning, and it plays a crucial role in social perception and empathy. The intuitive link between others' somatosensations and our sense of touch becomes ostensible in mirror-touch synesthesia, a condition in which the view of a touch on another person's body elicits conscious tactile sensations on the observer's own body [1]. This peculiar phenomenon may implicate normal social mirror mechanisms [2]. Here, we show that mirror-touch interference effects, synesthesia-like sensations, and even phantom touches can be induced in nonsynesthetes by priming the primary somatosensory cortex (SI) directly or indirectly via the posterior parietal cortex. These results were obtained by means of facilitatory paired-pulse transcranial magnetic stimulation (ppTMS) contingent upon the observation of touch. For these vicarious effects, the SI is engaged at 150 ms from the onset of the visual touch. Intriguingly, individual differences in empathic abilities, assessed with the Interpersonal Reactivity Index [3], drive the activity of the SI when nonsynesthetes witness others' tactile sensations. This evidence implies that, under normal conditions, touch observation activates the SI below the threshold for perceptual awareness [4]; through the visual-dependent tuning of SI activity by ppTMS, what is seen becomes felt, namely, mirror-touch synesthesia. On a broader perspective, the visual responsivity of the SI may allow an automatic and unconscious transference of the sensation that another person is experiencing onto oneself, and, in turn, the empathic sharing of somatosensations [2].

Depressive symptoms after a sexual assault among women: understanding victim-perpetrator relationships and the role of social perceptions

Although mental health impact of gender based violence has been documented for many decades, the impact of the socio-cultural dimensions and type of perpetrator on mental health outcomes has not been described outside of developed countries. We explore depression symptomatology four to six weeks post-rape in South Africa and examine whether this differs according to the circumstances of the rape. 140 participants recruited from public hospital services in the Eastern and Western Cape provinces were interviewed within two weeks after completing the post exposure prophylaxis (PEP) medication. A structured questionnaire was used to collect data on socio-demographic and sexual assault characteristics including perpetrator. Depressive symptomatology was measured using the Centre for Epidemiological Studies Depression Scale. 84.3% (95% CI: 78.1-90.3) women were found to have high levels of depressive symptoms, but lower levels were found among women raped in circumstances in which there was a lesser likelihood of blame such as those raped by strangers rather than intimate partners (Odds Ratio: (OR) 0.28 (95% Confidence Intervals (CI): 0.11-0.69) and higher levels were associated with experiencing four or more side effects related to PEP medication (OR: 3.79: CI: 1.03-13.94). Receiving support and severe sexual assaults (involving weapons and multiple perpetrators) were not associated with depression. The study does not support the general assumption that more violent rape causes more psychological harm. These results have important implications for individual treatment because it is more generally assumed that multiple perpetrator rapes, stranger rapes and those with weapons would result in more psychological trauma and thus more enduring symptoms. Our findings point to the importance of understanding the socio-cultural dimensions, including dynamics of blame and stigma, of rape on mental health sequelae.

1687 – Social cognition in patients with dissociative amnesia

Introduction Dissociative amnesia is triggered by psychological stress or trauma. Its hallmark is a severe (usually retrograde) memory impairment within episodic-autobiographical domain, occurring without evidence of significant brain damage on conventional structural brain imaging. Objectives This work’s objectives are establishing greater recognition of possible relations between memory performance and social cognition in patients with dissociative amnesia. Aims We review data on social cognition (affective and cognitive theory of mind, simulation, empathy, social judgment, moral judgment) from our own patients with dissociative amnesia. Methods Patients were investigated medically, psychiatrically and with neuropsychological and neuroimaging methods. Results Patients with dissociative amnesia show variable degrees of impairments of components of social cognition, based on their comorbid conditions (e.g. concurrent clinical or subclinical depression), types of memory impairments (e.g. extent of retrograde amnesia, presence of autobiographical semantic deficits), pattern of brain metabolic changes, personality characteristics, neuropsychological profile (performance on executive functions or emotional processing) and testing paradigms. Conclusions The impairment in dissociative amnesia seems to go beyond the conscious mnemonic deficit, encompassing various aspects of social information processing. Knowledge about the pattern of metabolic and micro-structural brain changes in patients with dissociative amnesia as well as a fine-grained analysis of the neural correlates of various aspects of social cognition might provide an understanding of when and how episodic-autobiographical memory contributes to social cognition. As several studies emphasized, some structures involved in mnemonic processing may also play a role in social perception, cognition and behavioural regulation, including future-minded choice behaviour.

The role of the left inferior frontal gyrus in social perception: An rTMS study

Perceiving and interpreting social information richness is something that humans do automatically whenever they engage in social interactions. Numerous studies have identified neural substrates, including mirror neurons that may enable such social perception. In this study, we temporarily disrupted activity in the left inferior frontal gyrus (LIFG) using repetitive transcranial magnetic stimulation (rTMS). We investigated whether this cortical region, that is hypothesized to include mirror neurons, plays a central role in social perception. The LIFG was stimulated in the experimental condition (n=18), the vertex was targeted in the control condition (n=19). Disrupting LIFG, but not vertex, increased reaction times during an emotion recognition task, and eliminated the suppression of the 8–12Hz EEG μ rhythm, postulated as an index of mirroring activity. The results of this study provide further evidence for the role of the human mirror neuron system (MNS) in social perception, and indicate that the MNS can be measured with EEG.

Effects of different types of hand gestures in persuasive speech on receivers’ evaluations

Hand gestures have a close link with speech and with social perception and persuasion processes, however to date no one has experimentally investigated the role of hand gestures alone in persuasive speech. An experiment with undergraduates was conducted using 5 video-messages in which only hand gestures of the speaker were manipulated along five types. ANOVAs reveal effect of gesture type on receivers’ evaluation of message persuasiveness, speaker communication style effectiveness, and speaker's composure and competence. A control study (Experiment 2) confirms that these effects are due to visible gestures. Speech accompanying gestures appear to play a causal role in social perception.

Charting the typical and atypical development of the social brain

We describe recent progress in our program of research that aims to use functional magnetic resonance imaging (fMRI) to identify and delineate the brain systems involved in social perception and to chart the development of those systems and their roles as mechanisms supporting the development of social cognition in children, adolescents, and adults with and without autism. This research program was initiated with the intention of further specifying the role of the posterior superior temporal sulcus (STS) region in the network of neuroanatomical structures comprising the social brain. Initially, this work focused on evaluating STS function when typically developing adults were engaged in the visual analysis of other people's actions and intentions. We concluded that that the STS region plays an important role in social perception via its involvement in representing and predicting the actions and social intentions of other people from an analysis of biological-motion cues. These studies of typically developing people provided a set of core findings and a methodological approach that informed a set of fMRI studies of social perception dysfunction in autism. The work has established that dysfunction in the STS region, as well as reduced connectivity between this region and other social brain structures including the fusiform gyrus and amygdala, play a role in the pathophysiology of social perception deficits in autism. Most recently, this research program has incorporated a developmental perspective in beginning to chart the development of the STS region in children with and without autism.

Relationships among social perception, social skill, and social anxiety of psychiatric patients.

This study examined relationships among measures of social perception and social performance for 63 psychiatric patients. Simulated social situations with differing response alternatives were presented on videotape to patients who judged the most appropriate alternative of three. Patients also participated in role-plays, and their videotaped responses were later rated for social skill and social anxiety. Patients also responded to a self-report inventory of social behavior. Analysis indicated that social perception was correlated with social skill but not with social anxiety. Self-report measures were not correlated with either social perception or social performance. The possible role of social perception in social performance was discussed.

The Influence of Stereotypes in Impression Formation: A Reply to Locksley, Hepburn, and Ortiz

This paper discusses the evidence that led us to conclude that stereotypes play an important role in social perception (Grant and Holmes, 1981:114). We show that despite the criticisms of Locksley, Hepburn, and Ortiz (1982) this conclusion is completely justified. Specifically, Locksley and her colleagues are incorrect when they argue that our experimental design was inadequate, and the reanalysis reported by those authors misses a fundamental distinction made in our original paper and therefore is misleading. Further, the evidence they present that case information significantly and substantially reduces effects of stereotypes on judgments of individuals (p. 271) is inconclusive. Whatever the outcome of subsequent research in this area, our study demonstrates that in the presence of case information stereotypes do have a significant impact on people's impressions of ethnic group members.

The Integration of Implicit Personality Theory Schemas and Stereotype Images

Subjects were asked to form an impression of either an Irish or a Chinese stimulus person described by two traits. These traits were either part of the stereotype image of the stimulus person's ethnic group, or were unrelated to this image. Results showed that the Irish stereotype traits were used to characterize the Irish stimulus persons and Chinese stereotype traits were used to characterize the Chinese stimulus person, whatever their trait descriptions. In addition, when subjects characterized an individual described by traits unrelated to the individuars ethnic group stereotype, they included these traits in their impressions of that person. Thus the subjects' impressions of such a person included all the stereotype traits associated with the person's ethnic group and these unrelated traits. These results suggest that stereotypes play an important role in social perception. Specifically, the results support the notion that stereotypes are over-generalizations that are applied to any ethnic group member regardless of his or her individual characteristics. However, they also suggest that stereotypes do not act to minimize perceived individual differences between ethnic group members along dimensions independent