The posterior hypothalamic nucleus (PH) stimulates autonomic stress responses. However, the role of the PH in behavioral correlates of psychiatric illness, such as social and anxiety-like behavior, is largely unexplored, as is the neurochemistry of PH connectivity with limbic and neuroendocrine systems. Thus, the current study tested the hypothesis that GABAergic signaling within the PH is a critical link between forebrain behavior-regulatory nuclei and the neuroendocrine hypothalamus, integrating social and anxiety-related behaviors with physiological stress reactivity. To address this hypothesis, GABAA receptor pharmacology was used to locally inhibit or disinhibit the PH immediately before behavioral measures of social and anxiety-like behavior in rats. Limbic connectivity of the PH was then established by simultaneous co-injection of anterograde and retrograde tracers. Further, the role of PH GABAergic signaling in neuroendocrine stress responses was tested via inhibition/disinhibition of the PH. These studies determined a prominent role for the PH in the expression of anxiety-related behaviors and social withdrawal. Histological analyses revealed divergent stress-activated limbic input to the PH, emanating predominantly from the prefrontal cortex, lateral septum, and amygdala. PH projections also targeted both parvicellular and magnocellular peptidergic neurons in the paraventricular and supraoptic hypothalamus. Further, GABAA receptor pharmacology determined an excitatory effect of the PH on neuroendocrine responses to stress. These data indicate that the PH represents an important stress-integrative center, regulating behavioral processes and connecting the limbic forebrain with neuroendocrine systems. Moreover, the PH appears to be uniquely situated to have a role in stress-related pathologies associated with limbic-hypothalamic dysfunction.
Asian Americans have historically been subjected to foreigner objectification, a form of racial discrimination rooted in the "perpetual foreigner" stereotype. Foreigner objectification is related to multiple indicators of negative psychological adjustment and may be particularly salient for U.S.-born Asian Americans. This study examined whether cultural asset profiles (composed of ethnic-racial identity, American identity, and ethnic socialization) moderate the relationship between foreigner objectification and psychological adjustment among U.S.-born Asian American college students (N ϭ 468). Using person-centered cluster analytic methods, four cultural asset profiles were derived (Multiple High Assets, Multiple Low Assets, High American Assets, Moderate Ethnic-Racial Assets). Foreigner objectification was significantly associated with lower subjective well-being, and this association was not moderated by cultural asset profiles. Foreigner objectification was also significantly related to higher psychological distress, but this relationship was moderated by cultural asset profiles. The results suggest that moderate levels of ethnic-racial assets may be more protective in the context of the foreigner objectificationdistress association. What is the public significance of this article?This study tested whether different cultural asset profiles of ethnic-racial identity, American identity, and ethnic socialization protect U.S.-born Asian Americans from being treated as a perpetual foreigner. Treatment as a foreigner was related to negative psychological adjustment for all, but this relation was stronger for individuals with patterns of either higher or lower overall levels of cultural assets, compared with those with moderate levels.
The parenting practices of both transracially adopted Korean American adults and multiracial families are often overlooked in developmental science, yet are important to address given that the majority of Korean adoptees are now adults with families of their own and given rapid increases in the multiracial population. This qualitative study examined the cultural socialization beliefs and practices among transracially adopted Korean Americans who are parents of multiracial Asian-White children. Drawing upon interviews with 31 Korean adoptee parents (29 female; Mage = 41.26), we identified four themes that capture parents' understanding of their children's multiracial identities, how that understanding subsequently shapes their cultural socialization practices, and how parents' socialization beliefs and practices vary by developmental stage. These themes described the ways that parents' cultural socialization practices were shaped by their children's phenotypes, parents' understanding of their children's multiracial identities, geographic location, and the multiracial family context. This study also demonstrated how multiracial couples in our sample engaged in cultural socialization together. Results suggest that Korean adoptee parents largely acknowledged their children's multiracial identities through labels, but primarily socialized children as monoracial minorities.
The purpose of this study was to develop a measure of familial support of Multiracial individuals’ unique racial experiences to advance the field’s understanding of how familial processes influence Multiracial development. A sample of 422 Multiracial college students (77.7% female, Mage = 20.05) from three different regions of the United States completed the survey. Exploratory factor analysis results suggested a two-factor measure. Multiracial Conscious Support, a 15-item subscale, represented support strategies unique to Multiracial individuals’ experiences of discrimination and identity exploration. The second 7-item subscale, Multiple Heritage Validation, represented validation of membership in multiple racial groups. The factor structure was supported by confirmatory factor analysis findings with a separate sample. Support was found for the reliability and validity of each subscale. This study provides evidence validating the first measure of familial support of Multiracial experiences, highlighting two themes of support addressing unique experiences of being Multiracial, and validating multiple racial group memberships.
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