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Affiliation and social discrimination produced by brief exposure in day-old domestic chicks.

Discrimination between individual strangers and companions was examined in day-old domestic chicks. In one experiment, pecking rates at companions and strangers were observed in pairwise bouts after 16 hr of cohabitation. The discriminability of strangers and companions was varied by means of pre-hatch colouring. Reliable discriminations between individual strangers and companions emerged as early as the first minute of the encounter. Discriminative cues provided by artificial colouring were found not to be necessary in establishing social discrimination. In a second experiment, undyed chicks were housed in pairs for 1, 4 or 16 hr. Half of the pairs lived in cages that separated companions by a wire screen, and half were housed in undivided cages. Observations of pecking in four-way bouts confirmed previous findings and demonstrated that the opportunity to peck during exposure may be a necessary condition in producing social discrimination. Antecedent conditions that lead to the development of affiliative bonds simultaneously appear to establish social discrimination.

Animals

[The problem complex of the disabled and the marginal group theory - socio-scientific approaches designed to explain the social discrimination of the disabled (author's transl)].

The position of disabled people in societies such as the Federal Republic of Germany, is characterised by the status of marginal groups in the sense of social discrimination. As can be demonstrated by the discrimination shown towards the disabled in employment, there are two different paradigms of the socio-scientific marginal group theory suitable for explaining this fact. According to the socio-psychological approach, vocational discrimination is understood as a sort of social punishment for the violation of norms and values. The socio-economic approach, on the contrary, considers the unfavourable job situation of the disabled a by-product of a general development towards underemployment and the de-manning programme in capitalistic systems. In some respect, the theoretical approach seems to be more resonable, but to comprehend adequately the marginal group status of the disabled, it is necessary to integrate both the socio-economic and socio-psychological theory components.

Persons with Disabilities

[From ostracized to facially-injured subjects -- an example of social discrimination from the history of medicine].

The historical social situation and medical treatment of facially injured individuals is briefly summarized. Facially injured individuals were ostracized from society as a result of legal punishment, fear of contamination; or, because one believed that their injuries reflected a character-deficiency or even possession by evil spirits. In 1975, the term "defaced" (Entstellter) was replaced by the value-neutral description "facially injured" (Gesichtsversehrter).

Europe

Morbidly obese patients' perceptions of social discrimination before and after surgery for obesity.

Morbidly obese patients' perceptions of obesity-related prejudice and discrimination were assessed before and 14 months after operation for obesity. Preoperatively, the 57 consecutive patients perceived overwhelming prejudice and discrimination at work, within the family, and in public places. After a weight loss of more than 45.5 kg (100 lb), these patients perceived little or no prejudice or discrimination. We examine factors contributing to the change in patients' perceptions and comment upon patients' perceptions of the negative attitudes held by health professionals toward obese patients.

Adult

Attitudes towards mental illness in the Athens area: implications for community mental health intervention.

Attitudes towards mental illness were measured in a probability sample of 1574 male and female adults, residents of two boroughs in the greater Athens area before the development of community mental health services in the area. The objective of this study was to identify the components of these attitudes, taking into account the fact that public opinions about mental illness influence the utilization of community mental health services and the level of reintegration of the mentally disabled into society. The instrument used to measure attitudinal dimensions was the Cohen and Struening Opinion about Mental Illness (O.M.I.) scale. Factor analysis revealed five attitude dimensions: social discrimination, social restriction, social care, integration, and etiology. Among the socio-demographic variables age, education, occupational status and place of residence up to 18 years of age affected the factors mainly, reflecting social discrimination and restriction. O.M.I. factor scores underlying the need for social care and reintegration of the mentally ill into society were found to be socially invariant, implying the need for social care and more humane treatment methods for mental patients. Certain population groups responded with rejection or suspicion and considerable fear of the mentally ill, indicating the necessity for the planning of appropriate community mental health intervention programs parallel to the development of community mental health services and psychiatric reforms in Greece.

Adult

Early life events as discriminators of socialized and undersocialized delinquents.

The relationship between early life events and the socialized and undersocialized dimensions of conduct disorder was investigated. Subjects were 40 incarcerated male delinquents and their mothers. The mothers were administered the Children's Life Events Questionnaire and the Developmental Questionnaire. Youths were administered the Adolescent Parent Relations Scale. The results indicated that the undersocialized delinquents had a greater number of stressful life events during their first 4 years of life than did the socialized delinquents. Discriminant function analysis indicated that stressful life events during the 2nd and 4th years were the most important predictors of membership in the undersocialized group. The discriminant function generated was able to classify 82.5% of the sample correctly. The remaining variables did not significantly discriminate the groups.

Adolescent

Young women and depression. Origin, outcome, and nursing care.

Depression in young women occurs at a rate twice that of men. Physiologic, psychological, and social phenomena contribute to the development of this multifactorial disorder that interferes with the productivity of women at the height of their work and family careers. Neuroendocrine factors, both menstrually linked and independent of menstrual functioning, have been implicated in gender-biased distribution of affective disorder. Equally salient for women are environmental and cognitive factors that contribute to loss of hope and a sense of helplessness in managing day-to-day responsibilities. Social discrimination and the social roles performed by women may expose them to more stresses or those that are not easily managed. Each of these factors may leave women more vulnerable to the onset of affective disorder. Despite this, there is much nurses can do in the prevention and treatment of depression using a biopsychosocial strategic approach. Psychoeducation, physiologic assessment and intervention, and a maintained caring interaction with the client can promote a return to normal mood and effective functioning for most women with affective illness.

Adult

Right hemisphere advantage for social recognition in the chick.

Recognition of familiar and unfamiliar conspecifics was studied in pair-reared chicks tested binocularly or with only one eye in use. Chicks were tested on day 3 in pairs composed of either cagemates or strangers. Social discrimination, as measured by the ratio "number of pecks at the strangers/total number of pecks" was impaired in right-eyed chicks with respect to left-eyed and binocular chicks. Male chicks showed higher levels of social pecking than females, and chicks that used both eyes showed higher pecking than monocular chicks. There were no significant differences in the total number of pecks (i.e. pecks at companions plus pecks at strangers) between right- and left-eyed chicks: the impairment in social discrimination of right-eyed chicks seemed to be due partly to a reduction in pecking at strangers and partly to an increase in pecking at companions. It is suggested that neural structures fed by the left eye (mainly located at the right hemisphere) are better at processing and/or storing of visual information which allows recognition of individual conspecifics. This may be part of a wider tendency to respond to small changes in any of a variety of intrinsic stimulus properties.

Animals

Affiliation and aggression as related to gender in domestic chicks (Gallus gallus).

Social discrimination in male and female domestic chicks (Gallus gallus) was investigated by using (a) latencies of approach response, (b) simultaneous free choice, and (c) intersubject aggressive-pecking tests. In approach-response tests, females showed shorter latencies when tested with cagemates than when tested with strangers, whereas males showed shorter latencies when tested with strangers than when tested with cagemates. In simultaneous-choice tests, females spent more time near a cagemate, whereas males spent more time near a strange chick. In aggressive-pecking tests, both sexes pecked more at strangers than at cagemates; aggressive pecking at strangers, however, was higher in males than in females. It is argued that gender effects in social discrimination can be accounted for in terms of stronger social attachment in females and aggressive responses in males.

Aggression