Development of racial identity in minority and majority children: An affect discrepancy model.

Proposes an affect discrepancy to explain the processes by which children come to know and identify with a minority or majority group. To test this model, 203 White and 91 Indian children in kindergarten and Grades 1 and 2 answered racial identity, preference, social distance and recognition questions by pointing to pictures of Whites, Indians, and Blacks. Several weeks later Ss completed measures of concrete operational thought and self-esteem. Indian children made more cross-racial choices than did Whites, even though Indians were more accurate than Whites in recognizing the pictures. Structural equation models indicated that for both groups, cognitive development was positively associated with own-group choices. Self-esteem was positively related to own-group choices for Whites but inversely related for Indians. (French abstract) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

White fears and native apprehensions: An integrated threat theory approach to intergroup attitudes.

Motivational and cognitive factors have been used to explain negative attitudes toward out-group members. According to the integrated threat theory of prejudice, negative intergroup attitudes are predicted by proximal factors consisting of perceived threats from out-group members; these threats, in turn, are predicted by distal factors such as perceived differences in group status or negative out-group contact. In the present study, White and First Nation people (adolescents and adults) completed measures assessing distal and proximal variables and attitudes toward members of the other ethnic group. Path analyses indicate that realistic and symbolic threats, intergroup anxiety, and negative stereotypes predicted negative out-group attitudes. Many of these threats, and in some cases ethnic attitudes, were associated with negative intergroup contact, strength of in-group identity, perceptions of intergroup conflict, and perceived status inequality. Theoretical and applied implications of these findings are discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Racial identity and preference in Native and White Canadian children.

56 White and 44 Native (Indian) kindergartners and 1st graders were asked by a White or Indian experimenter to answer questions about their racial identity and preferences. Consistent with predictions from accessibility theory, Ss of both races made more accurate self-identifications when tested by an Indian experimenter, this effect being greater for Native Ss. Racial preferences showed a strong White bias, results consistent with both the escape and the light color bias hypotheses. Results are discussed in term of R. B. Zajone's (see record 1980-09733-001) distinction between cognitive and affective processes. (French abstract) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Ethnic preference and identification among Canadian Indian and White children: Replication and extension.

Examined 3 hypotheses regarding ethnic preference and identification among White and Native Indian children who were asked by either a White or Native experimenter (E) to indicate their preference for either a White or Native doll, a white or brown rabbit, and a white or brown cup. The escape hypothesis suggests that both types of Ss would choose the White doll and that the Natives would show ethnic misidentification. J. E. Williams's (Williams and J. K. Morland, 1976) notion of a pro-light/anti-dark bias suggests that Ss of both races would choose the lighter of 2 objects. A 3rd hypothesis suggests that Ss of both races would choose a doll of the same race as the E; there would be no pattern regarding rabbits or cups. 30 White 5–7 yr olds and 35 Native 5–6 yr olds served as Ss. Results show that Ss of both races chose the lighter of 2 objects, consistent with Williams's hypothesis. Such responses, however, were influenced by both S's race and race of the E. Results also indicate that when choosing the doll that looked more like themselves, Ss of both races chose the White doll more frequently with a White than a Native E, a finding consistent with the E bias hypothesis. The notion that minority group Ss were attempting to escape a minority group label by identifying with objects associated with the majority group was not supported. (French abstract) (15 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Human mixed somatotrophic and lactotrophic pituitary adenomas

Six patients with acromegaly at examination were found to have pituitary adenomas composed of cells that secreted GH and PRL. This was demonstrated by the elevated serum hormone concentrations, by immunoperoxidase staining of 5 specimens, and by electron microscopic examination of 4. Ultrastructural characteristics, described in detail, suggest that these adenomas were mixed adenomas consisting of 2 well-defined, distinct cell types, each secreting one hormone. By immunoperoxidase staining some cells were found to contain immunoreactive growth hormone, other cells immunoreactive prolactin. No cells were detected exhibiting immunostaining for both growth hormone and prolactin. Eelctron microscopy, consistent with the results of immunostaining, revealed the presence of two distinct cell types, distinguishable from each other by their characteristic fine structural features. No intermediate forms were noted. Thus there was no evidence to suggest that one cell type might transform to the other. Present findings seem to indicate that mixed adenomas secreting growth hormone as well as prolactin and consisting of somatotrophs as well as lactotrophs do occur in the human pituitary gland. Although all the results obtained so far suggest that these tumors are composed of two distinct cell types and thus can be interpreted as representing real mixed adenomas, further work is required to establish whether or not they derive from one common progenitor.