[Social medicine. A clinical social paediatric study. The correlation between maladjusted children with behavior difficulties and their parents is a social health problem].
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Adolescent↗
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Behavioural and physiological consequences of acute social defeat in growing gilts: effects of the social environment.
Endocrine, behavioural and immunologic processes, together with body growth, were evaluated in gilts that were defeated at 10 weeks of age in resident-intruder tests. Immediately after defeat, gilts were either separated from or reunited with a familiar conspecific (litter-mate; always a barrow). Gilts were assigned to one of four treatments: (a) DI: defeat, followed by isolation (separation from original litter-mate; n=8); (b) I: no defeat, isolation (control group; n=9); (c) DP; defeat, followed by pair-housing (reunion with original litter-mate; n=8); and (d) P: no defeat, pair-housing (control group; n=8). The following general conclusions were derived: (1) social defeat caused pronounced short-term elevations in hypothalamic-pituitary-adrenal (HPA) and sympathetic-adrenal medullary activities, and of prolactin levels. Moreover, as soon as 1h after defeat, percentages of blood lymphocytes and neutrophilic granulocytes were, respectively, decreased and increased; (2) social defeat had some long-lasting influence on behaviour and physiology, but isolation predominantly determined responses in the longer term. Defeat, as well as isolation, resulted in increased cardiovascular activities compared to P controls, as observed in a novel object test (NOT: +7 days) and an aversion test (AVT: +14 days). Moreover, defeated as well as isolated gilts did not habituate to a repeated novel environment test (NET: -7, +2 and +7 days) in terms of frequencies of vocalising, whereas P controls did. Isolation, through the separation from any other pig, was responsible for the other observed long-term characteristics, which developed progressively. Isolated gilts showed high mobilities and high cortisol responses in the repeated NET (+7 days), not being habituated. This contrasted the reactions of pair-housed gilts, which were much reduced. In addition to their high cardiovascular activities in the NOT and the AVT, isolated gilts also displayed higher heart rates in the repeated NET and during human presence following the NOT, compared to pair-housed gilts. Finally, isolated gilts were more inhibited to approach a novel object (in the NOT) than pair-housed pigs; and (3) stress responses of defeated gilts were modulated by the subsequent social environment. Stimulation of the HPA-axis (plasma- and salivary cortisol) was prolonged in those defeated gilts which were isolated (observed in the first hour). Changes in leucocyte subsets were still observed after 3 days in DI, but were 'normalised' within 1 day in DP gilts. Two days after defeat, habituation to the repeated NET in terms of mobility and salivary cortisol responses occurred in control and DP gilts, but not in DI gilts. We argue that these effects of the social environment shortly after defeat were related to a stress-reducing effect of a stable social relationship, i.e. social support.
Journal Article↗
Self-focused attention in social phobia and social anxiety.
Self-focused attention is an awareness of self-referent information and is present in many emotional disorders. This review concentrates on the role of self-focused attention in social anxiety with particular reference to the Clark and Wells [Clark, D. M., & Wells, A. (1995). A cognitive model of social phobia. In R. R. G. Heimberg, M. Liebowitz, D. A. Hope, & S. Scheier (Eds.), Social phobia: diagnosis, assessment and treatment. New York: Guilford.] model of social phobia. According to Clark and Wells, self-focused attention is an important maintaining factor in the disorder because it increases access to negative thoughts and feelings, can interfere with performance, and prevents the individual from observing external information that might disconfirm his or her fears. Clark and Wells also propose that socially phobic individuals construct a distorted impression of themselves, based on internally generated information, that takes the form of a visual image (often seen from the perspective of an observer) or felt sense. This paper describes the model and then reviews other theories of self-focused attention, and empirical evidence on self-focused attention. Two types of evidence are reviewed: one, studies that have been conducted from a variety of theoretical perspectives that have relevance either to social anxiety in general or to the Clark and Wells model in particular; two, studies that were designed as a direct test of Clark and Wells' predictions. The final section of the review summarizes the conclusions and suggests areas for future examination.
Affect↗
The social self in bulimia nervosa: public self-consciousness, social anxiety, and perceived fraudulence.
Bulimic women appear preoccupied not only with their physical presentation but also with their "social self"--how others perceive them in general. This study examined the relationship of the social self to body esteem and to bulimia nervosa. In Phase 1, in which 222 nonclinical women (aged 16 to 50) participated, the social-self measures of Perceived Fraudulence, Social Anxiety, and Public Self-Consciousness were negatively associated with body esteem. In Phase 2, 34 bulimic women were compared with 33 Ss scoring high on the Eating Attitudes Test (EAT) and 67 matched control. Bulimic Ss, high-EAT Ss, and control Ss all differed on Perceived Fraudulence, and bulimic Ss and high-EAT Ss scored higher than control Ss on Public Self-Consciousness and Social Anxiety. The findings strongly support the hypothesized link of social-self concerns to body dissatisfaction and bulimia nervosa.
Adolescent↗
The Social Thoughts and Beliefs Scale: a new inventory for assessing cognitions in social phobia.
Development and initial psychometric features of a new inventory to assess cognitions associated with social phobia are described. The Social Thoughts and Beliefs Scale (STABS) is designed to assess cognitions in individuals with social phobia. In the 1st study, an initial pool of 45 items was reduced to 21. In the 2nd study, psychometric features of the scale were examined in a sample of individuals with social phobia, other anxiety disorders, and no psychiatric disorder. Total scores and two factor scores significantly differentiated individuals with social phobia from those in the other groups and were found to have adequate test-retest reliability and internal consistency. Potential usefulness of the STABS for assessing cognitions associated with social phobia is discussed.
Adolescent↗
Social jetlag: misalignment of biological and social time.
Humans show large differences in the preferred timing of their sleep and activity. This so-called "chronotype" is largely regulated by the circadian clock. Both genetic variations in clock genes and environmental influences contribute to the distribution of chronotypes in a given population, ranging from extreme early types to extreme late types with the majority falling between these extremes. Social (e.g., school and work) schedules interfere considerably with individual sleep preferences in the majority of the population. Late chronotypes show the largest differences in sleep timing between work and free days leading to a considerable sleep debt on work days, for which they compensate on free days. The discrepancy between work and free days, between social and biological time, can be described as 'social jetlag.' Here, we explore how sleep quality and psychological wellbeing are associated with individual chronotype and/or social jetlag. A total of 501 volunteers filled out the Munich ChronoType Questionnaire (MCTQ) as well as additional questionnaires on: (i) sleep quality (SF-A), (ii) current psychological wellbeing (Basler Befindlichkeitsbogen), (iii) retrospective psychological wellbeing over the past week (POMS), and (iv) consumption of stimulants (e.g., caffeine, nicotine, and alcohol). Associations of chronotype, wellbeing, and stimulant consumption are strongest in teenagers and young adults up to age 25 yrs. The most striking correlation exists between chronotype and smoking, which is significantly higher in late chronotypes of all ages (except for those in retirement). We show these correlations are most probably a consequence of social jetlag, i.e., the discrepancies between social and biological timing rather than a simple association to different chronotypes. Our results strongly suggest that work (and school) schedules should be adapted to chronotype whenever possible.
Adolescent↗
Baseline Differences in Social Support Among Treatment-Seeking Alcoholics With and Without Social Phobia.
Differences on demographics and seven measures of social support between matched, treatment-seeking alcoholics with and without social phobia (SP and NSP groups, respectively) were examined. The groups did not differ on most demographic variables, although the SP group (n = 397) had a lower occupational status and had fewer years of education (both p's <.01) than the NSP group (n = 397). On social support measures, the SP group had less perceived social support from friends and had a lower performance on the social behavior role scale than the NSP group (both p's <.001). The two groups were unexpectedly more similar than different on the measures of interest in this study; however, the differences identified are meaningful for treatment planning. It is important to ascertain the quantity and sources of social support which are available to these clients in order to maximize positive treatment outcomes.
Journal Article↗
Modification of extreme social isolation by contingent social reinforcement.
Two socially isolated patients were placed on a program where social reinforcement from staff members was made dependent on social interaction with other patients or staff members. This procedure was imposed in a setting where only limited control was possible. The level of social interaction and a concomitant alternate behavior in each patient was increased when the contingency for social reinforcement was imposed. The study provides another example of the efficacy of social reinforcement where there is little control over other reinforcers. Implications for use of similar procedures to increase generalization in the community are discussed.
Journal Article↗
[Influence of social inequality, social unrest and extreme poverty on tuberculosis morbidity in the City of Barcelona].
BACKGROUND: The main purpose of this study was to analyse inequalities between tuberculosis/intravenous drug user and tuberculosis/not intravenous drug user among the different neighbourhoods of Barcelona and the relationship to socioeconomic indicators and social/material deprivation indicators throughout the 1990-1995 period. METHODS: An ecological study which included all cases of tuberculosis among residents of Barcelona, the analysis unit being the neighbourhood. Intravenous drug users within the 15-49 age range and non-intravenous drug users over age 14 were included. The mean annual incidence rate standardized by age was used. The social indicators considered were the inner city areas, unemployment, less than primary education, overcrowding, social unrest and extreme poverty. In the bivariate analysis, the relationship between tuberculosis incidence and the social indicators was studied by means of the Spearman correlation coefficient, and the multivariate analysis by means of the Poisson regression. RESULTS: The incidence rates were higher in the inner city neighbourhoods, followed by the newer outlying working class neighbourhoods in both groups studied, and in other older outlying districts for the non-users of intravenous drugs. Among the intravenous drug user group, the variables related to a greater risk of tuberculosis were: man (RR = 7.42, confidence interval at 95% ICI95%-: 6.16-8.93), age (RR = 61.51, CI95%: 34.64-109.20), unemployment (RR = 1.68, CI95%: 1.51-1.88), social unrest (RR = 1.29, CI 95%: 1.04-1.58), overcrowding (RR = 1.36, CI 95%: 1.19-1.55) and inner city areas (RR = 1.92, CI 95% 1.48-2.50). Among the male non-users of intravenous drugs, no interaction between unemployment and age was found. Neighbourhoods with extreme poverty and inner city neighbourhoods showed a higher risk of tuberculosis (RR = 1.11, CI 95% 1.08-1.135 and RR = 1.80, CI95%: 1.51-2.14). Among the female non-users of intravenous drugs, a relationship was found in those of lesser age (RR = 1.29, CI 95%: 1.05-1.57), unemployment (RR = 1.18, CI 95%: 1.09-1.26), extreme poverty (RR = 1.95, CI 95%: 1.56-2.45) and inner city areas (RR = 1.72, CI 95%: 1.35-2.19). CONCLUSION: Inequalities in tuberculosis are related to different social indicators such as unemployment and inner city areas. A difference exists between the two groups studied. Tuberculosis is related with social unrest and overcrowding among intravenous drug users and with extreme poverty among non-users of intravenous drugs.
Adolescent↗
The effects of early social isolation on the motivation for social play in juvenile rats.
Fifteen-day-old rats were subjected to one of three housing conditions: mother-and-peer (family), peer, and isolation conditions. At 24 days of age, all subjects were rehoused individually. In Experiment 1, play behaviors were monitored in like-raised pairs. Despite their gross lack of social experience, isolation-reared subjects did not exhibit a deficit in frequencies of rough-and-tumble play. It is concluded that the fundamental motivation for rough-and-tumble play is relatively independent of prior learning in rats. Indeed, their elevated dorsal contacts suggested that isolation-raised subjects may have higher appetitive motivation for play. In Experiment 2, the levels of social motivation were compared between family- and isolation-raised animals, using a T-maze. The isolation-raised animals made reliably more choices for social interaction reward over food reward than family-raised animals. Although inconclusive, the results from the two experiments suggest that prolonged social isolation increases the appetitive motivation for social play.
Animals↗
Association of genetic differences in social behavior and cellular immune responsiveness: effects of social experience.
We have recently demonstrated that selective breeding of ICR mice for differences in social behavior (i.e., high versus low levels of social isolation-induced aggression) are related to increased susceptibility to tumor development and reduced levels of natural killer (NK) cell activity. In the present investigation, we sought to extend examination of the line differences in immune status to T and B cell responsiveness. In addition, we also sought to determine if social experience contributes to line differences in immune responsiveness. A cosibial design was used to examine whether single vs group housing modified the magnitude of line differences in immune status. Compared to aggressive (NC900) mice, nonaggressive (NC100) mice had significantly lower T cell proliferative responses to concanavalin A, lower IL-2 and gamma-interferon production, as well as significantly lower NK activity. Of the various measures of cellular immune responsiveness, housing condition was found to have a significant effect only on NK activity. No significant line by housing interactions were found for any of the immune measures tested. The present data demonstrate that the genetic selection for differences in social behavior is associated with line differences in several parameters of cellular immune responsiveness. These mouse lines provide a valuable research model to examine the association between selection for genetic differences in social behavior and differences in immune responsiveness.
Animals↗
Social support from a friend, perceived support, and social problem solving.
This research combined experimental and correlational methods to investigate the effects of social support on social problem-solving effectiveness and perceived stress. During a wait period, college students were given the opportunity to work on practice items from a mildly stressful social problem-solving task, either alone or in the company of a close friend. Participants and friends were allowed to talk about the practice items but were not required to do so, and supportive transactions were tape recorded and content analyzed. All students then completed social problem-solving and perceived stress items alone. Participants who waited with friends did not show superior problem-solving effectiveness unless companions provided particular supportive behaviors. Participants with high perceived support scores rated the experiment as less stressful than those with low scores, but perceived support was not related to companions' actual supportive behaviors. The results were discussed in terms of implications for understanding the mechanisms of social support.
Depression↗
Poor peer interactions and social isolation: a case report of successful in vivo social skills training on a child psychiatric inpatient unit.
The effects of social skills training comprising didactic instructions, coaching, modeling, feedback and reinforcement were examined in a child diagnosed Conduct Disorder and Attention Deficit Disorder in whom social isolation and poor peer interactions were prominent features. Treatment was implemented in the specific settings in which deficient social performance was noted using a multiple baseline design. Application of social skills training led to increased rates of appropriate interactions with peers and decreased rates of playing alone. In addition, pre- and posttreatment scores on the Child Behavior Checklist and School Behavior Checklist showed significantly decreased dysfunctional behaviors after training. Follow-up contact 1 and 12 months following discharge indicated that the child continued to socialize more with peers and to show improved adjustment.
Adaptation, Psychological↗
Major depression with and without a coexisting anxiety disorder: social dysfunction, social integration, and personality features.
Twenty-two inpatients with an acute major depression without an additional lifetime DSM-III axis I diagnosis were compared with 20 inpatients suffering from an acute major depression with a coexistent anxiety disorder. The comparisons focused on social dysfunction, social support, and premorbid personality features. Characteristics of provoking life events and chronic conditions of life during the year before the index admission were analyzed exploratively. Major depressives with an anxiety disorder reported a higher number of abnormal premorbid personality traits such as neuroticism and a tendency towards social isolation; they had fewer confidants and lived alone more frequently than pure major depressives. Furthermore, pure major depressives reported more non-illness-related chronic burdening conditions during the year before the onset of depression than did major depressives with an anxiety disorder. However, there were no differences between the patient groups as to social dysfunction. The results point to fewer personal and social resources of the comorbidity group.
Adult↗
Communal nesting, an early social enrichment, increases the adult anxiety-like response and shapes the role of social context in modulating the emotional behavior.
Early experiences affect brain function and behavior at adulthood. Being reared in a communal nest (CN), consisting in a single nest where three mothers keep their pups together and share care-giving behavior from birth to weaning (postnatal day 25), provides a highly stimulating social environment to the developing pup. CN characterizes the natural ecological niche of many rodent species including the mouse. Here we show that, at adulthood, compared to mice reared in standard laboratory conditions (SN), CN reared mice displayed increased anxiety-like behavior, performing more thigmotaxis in the open field and spending less time in the open arms of the plus-maze. Furthermore, we showed that social context (being alone or with a familiar conspecific in the test apparatus) affects the emotional response in both the plus-maze and open field test and that the relevance of social context changes according to the early social experiences. In particular, CN mice display higher levels of anxiety-like behavior, compared to SN mice, only when alone but not in the presence of a familiar conspecific. Overall, in line with previous findings, the present study suggests that CN mice have a more elaborate social and emotional behavior compared to SN mice and thus may be more appropriate to investigate socio-emotional impairments, in particular in the case of mouse models of neurodevelopmental disorders, such as autism, or anxiety and mood disorders.
Age Factors↗
Early social enrichment shapes social behavior and nerve growth factor and brain-derived neurotrophic factor levels in the adult mouse brain.
BACKGROUND: Early experiences produce persistent changes in brain and behavioral function. We investigate whether being reared in a communal nest (CN), a form of early social enrichment that characterizes the natural ecological niche of many rodent species including the mouse, has effects on adult social/aggressive behavior and nerve growth factor (NGF) and brain-derived neurotrophic factor (BDNF) levels in mice. METHODS: The CN consisted of a single nest where three mothers kept their pups together and shared care-giving behavior from birth to weaning (postnatal day 25). RESULTS: Compared to standard laboratory conditions, in CN condition, mouse mothers displayed higher levels of maternal care. At adulthood, CN mice displayed higher propensity to interact socially and achieved more promptly the behavioral profile of either dominant or subordinate male. Furthermore, CN adult mice showed higher NGF levels, which were further affected by social status, and higher BDNF levels in the brain. CONCLUSIONS: Our findings indicate that CN, a highly stimulating early social environment, produces differences in social behavior later in life associated with marked changes of neurotrophin levels in selected brain areas, including hippocampus and hypothalamus.
Age Factors↗
The hormonal and behavioral response to group formation, seasonal changes, and restraint stress in the highly social Malayan Flying Fox (Pteropus vampyrus) and the less social Little Golden-mantled Flying Fox (Pteropus pumilus) (Chiroptera: Pteropodidae).
This study examined behavioral and physiological responses (changes in inter-animal spacing, total glucocorticoids, testosterone, and body mass) to the formation of breeding and same-sex groups in two bat species, the socially gregarious Malayan Flying Fox (Pteropus vampyrus) and the less social Little Golden-mantled Flying Fox (Pteropus pumilus). We hypothesized that social instability, especially in the breeding groups and especially in P. vampyrus, would result in elevated glucocorticoids and that social facilitation of breeding and/or male-male competition would result in persistently higher levels of testosterone in breeding males. Seasonal rhythms in all measures were also predicted, and the glucocorticoid stress response was expected to vary by sex, season, and group type. Nearly all animals responded to group formation with elevated glucocorticoids, but, for breeding animals (especially aggressive male P. vampyrus), these responses persisted over time. In both species, breeding group formation resulted in elevated testosterone in males. Glucocorticoids, testosterone, testes volume, and body mass generally peaked in the breeding season in males (late summer and early autumn), but the seasonal glucocorticoid peak in females occurred in late winter and early spring. All animals responded to restraint stress with elevations in glucocorticoids that largely did not differ by sex, time of year, reproductive condition, group type, or, in lactating females, the presence of her pup. Changes in both behavior and physiology were more evident in P. vampyrus than in P. pumilus, and we believe that their underlying social differences influenced their responses to group formation and to the changing seasonal environment.
Aggression↗
Differential effects of social isolation upon body weight, food consumption, and responsiveness to novel and social environment in bombesin receptor subtype-3 (BRS-3) deficient mice.
The effects of social isolation on body weight gain, food consumption, and responsiveness to novel and social environment were assessed in an animal model for obesity, bombesin receptor subtype-3 (BRS-3) deficient mice. In Experiment 1, body weight gain and food consumption of group- and isolation-housed wild-type and BRS-3-deficient mice were compared. In wild-type mice, group-housed animals showed greater mean body weight gain and food consumption than did the isolation-housed cohort in the early stage of the experiment, whereas in BRS-3-deficient mice, the isolation-housed mice showed greater body weight gain and food consumption than the group-housed cohort by prolonged isolation housing. In Experiment 2, isolation-housed wild-type mice exhibited increased stereotypic and vertical movements relative to group-housed subjects in a novel environment, but this effect was not observed in BRS-3-deficient mice. In Experiment 3, when social response was assessed in animals housed in isolation, BRS-3-deficient mice exhibited lower social responses than did wild-type mice. We conclude that BRS-3-deficient mice and wild-type mice are differentially affected by social isolation. These results suggest that BRS-3 expression in the CNS may affect the neural mechanisms that regulate isolation effects in wild-type animals.
Aging↗