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101.
Microinfusions of flumazenil into the basolateral but not the central nucleus of the amygdala enhance memory consolidation in rats. 总被引:3,自引:0,他引:3
C Da Cunha B Roozendaal A Vazdarjanova J L McGaugh 《Neurobiology of learning and memory》1999,72(1):1-7
Extensive evidence indicates that benzodiazepine receptors in the amygdala are involved in regulating memory consolidation. Recent findings indicate that many other drugs and hormones influence memory through selective activation of the basolateral amygdala nucleus (BLA). This experiment examined whether the memory-modulatory effect of flumazenil, a benzodiazepine receptor antagonist, selectively involves the BLA. Bilateral microinfusions of flumazenil (12 nmol in 0.2 microl) into the BLA of rats administered immediately after training in an inhibitory avoidance task significantly enhanced 48-h retention performance whereas infusions into the central nucleus were ineffective. These findings indicate that the BLA is selectively involved in mediating flumazenil's influence on memory storage and are thus consistent with extensive evidence indicating that the BLA is involved in regulating memory consolidation. 相似文献
102.
Sara Albuquerque Luana Cunha Ferreira Isabel Narciso Marco Pereira 《Journal of child and family studies》2017,26(7):1817-1830
Despite the challenging context of grieving for the death of a child, evidence shows that it is possible for parents to manage and preserve their relationship. The aim of this study was to examine parents’ perceptions of positive interpersonal coping processes that helped their relationship after the death of their child. Individual semi-structured interviews with 17 bereaved maritally committed parents were conducted. The interview guide included questions covering themes such as parents’ coping together, relationship strengths and mutual support. Data were analyzed through constructivist grounded theory methods. Three main themes were identified: search for meaning (reframing of partners’ different coping processes and the changes/difficulties in the relationship, and development of shared beliefs); communication with the partner (direct and indirect feedback, and mutual learning); and care-in-relation (caring for the partner and the relationship). Dyad-level interventions should aim at promoting mutual empathy, development of shared appraisals, and the identification and consideration of each other’s boundaries. 相似文献
103.
Salvatore?PisuEmail author Giovanni?CaocciEmail author Ernesto?d’Aloja Fabio?Efficace Adriana?Vacca Eugenia?Piras Maria?Grazia?Orofino Carmen?Addari Michela?Pintor Roberto?Demontis Federica?Demuru Maria?Rita?Pittau Gary?S?Collins Giorgio?La Nasa 《Philosophy, ethics, and humanities in medicine : PEHM》2014,9(1):13
104.
Is there a trade-off between having large networks of social connections on social networking sites such as Facebook and the development of intimacy and social support among today's generation of emerging adults? To understand the socialization context of Facebook during the transition to adulthood, an online survey was distributed to college students at a large urban university; participants answered questions about their relationships by systematically sampling their Facebook contacts while viewing their Facebook profiles online. Results confirmed that Facebook facilitates expansive social networks that grow disproportionately through distant kinds of relationship (acquaintances and activity connections), while also expanding the number of close relationships and stranger relationships, albeit at slower rates. Those with larger networks estimated that larger numbers of contacts in their networks were observing their status updates, a form of public communication to one's entire contact list. The major function of status updates was emotional disclosure, the key feature of intimacy. This finding indicates the transformation of the nature of intimacy in the environment of a social network site. In addition, larger networks and larger estimated audiences predicted higher levels of life satisfaction and perceived social support on Facebook. These findings emphasize the psychological importance of audience in the Facebook environment. Findings also suggest that social networking sites help youth to satisfy enduring human psychosocial needs for permanent relations in a geographically mobile world--college students with higher proportions of maintained contacts from the past (primarily high school friends) perceived Facebook as a more useful tool for procuring social support. 相似文献
105.
A growing body of literature has shown that being victimized online is associated with poor mental health. Little is known about the factors that protect youth from the negative outcomes that may result from these victimization experiences, particularly those related to race. Using a risk and resilience framework, this study examined the protective function of ethnic identity and self-esteem among African Americans who experience online racial discrimination. For the sample of 125 adolescents, hierarchical regression results revealed that higher levels of ethnic identity and self-esteem significantly moderated the negative impact of online racial discrimination on anxiety levels. These findings show that ethnic identity and self-esteem can buffer the negative mental health outcomes associated with online racial discrimination, at least with respect to adolescents' anxiety. Findings from the current study have significant implications for adolescent adjustment given the increased time youth spend doing online activities. 相似文献
106.
Adriana T. Kachani Silvia Brasiliano Táki A. Cordás Patrícia B. Hochgraf 《Body image》2013,10(1):127-130
This work aims to compare in patients with anorexia nervosa, bulimia nervosa, and control subjects: (a) body checking types, frequency, and parts; (b) prevalence of body avoidance and the most checked body parts; (c) body checking cognitions. Eighty-five outpatients with eating disorders (ED) and 40 controls filled out validated body checking and cognition questionnaires. ED patients, especially bulimia nervosa, check their bodies more than do the control subjects. The most checked area was the belly. The most frequent means of body checking was mirror checking, while the most avoided was weighing. The reasons that participants in the various study groups check their bodies seem to differ. Given the importance of body checking in the etiology and maintenance of EDs, it is important that clinicians consider this behavior, as well as the factors that lead to checking/avoidance in the different eating disorder subtypes, so that treatment may be more specific. 相似文献
107.
López‐Vázquez Esperanza Marván María Luisa Flores‐Espino Fabiola Peyrefitte Adriana 《Journal of applied social psychology》2008,38(12):2885-2902
The present study investigates stress levels, feelings of insecurity, and coping strategies used by people living near an active volcano in México (Popocatépetl). The sample was composed of 198 adults, who were divided into 4 groups according to the risk zones in which they live. They answered a questionnaire addressing feelings of insecurity regarding volcanic risk, a coping strategies scale, and a stress scale. A significant interaction between active and passive coping strategies and risk zone was found. Higher levels of insecurity feelings regarding volcanic risk were associated with the highest stress levels evoked by facing a volcanic risk. A possible application of this study is at the community‐service level concerning risk prevention. 相似文献
108.
María Fernanda Olarte Sierra Adriana Díaz Del Castillo Hernández 《Science as culture》2014,23(2):226-252
In Colombia, as in other Latin American countries, current population genetics research is based on the understanding that Colombians constitute a mestizo nation, given the admixture process that took place between Africans, Amerindians, and Europeans during colonial times. The mestizo is a pervasive category used by geneticists to conduct, organise, and publish research studies that deal with the continent's peopling process and the genetic makeup of its contemporary population(s). It is also the dominant imaginary for the Colombian population and a key nation-building ideology. By tracing how this category moves and is used across four Colombian genetics laboratories, it is possible to discern that despite its apparently clear-cut boundaries, the mestizo is contingent, contested, and flexible, allowing for multiple understandings and usages. This flexibility and multiplicity are visible in the quantification of genetic ancestry, the divisions of geographical location, and the understanding of gender. Such understandings allow one to think about a homogeneous nation (inclusive) that is simultaneously heterogeneous (exclusive); they provide multiple but not necessarily contradictory possibilities of being mestizo, allowing the coexistence of images of the nation that could otherwise seem contradictory; and they permit navigation around contested terms such as race, while simultaneously thinking of mixed races or racialised individuals. Finally, these flexible and multiple constructions of the mestizo (re)produce various subjects as ‘other’, whether they are women, the Indigenous, the black/dark, or the poor. 相似文献
109.
Alejandra Hurtado-de-Mendoza Felisa A. Gonzales Adriana Serrano Stacey Kaltman 《American journal of community psychology》2014,53(1-2):73-82
Research has identified numerous mechanisms through which perceived social isolation and lack of social support negatively impact health. Little research attention has been dedicated to factors that influence the development of social networks, which have the potential to decrease perceptions of social isolation and provide social support. There is mixed evidence concerning the availability of supportive social networks for Latinos in the US. This study explores trauma-exposed Latina immigrants’ experiences of social isolation in the US and its perceived causes. Twenty-eight Latina immigrant women participated in an interview about traumatic experiences. Informal help seeking and the availability of friendships in the US were also queried. Frequent comparisons between experiences in their home countries and in the US shaped the emerging themes of social isolation and lack of social support. Women reported feeling lonely, isolated, closed-in, and less free in the US due to family separation and various obstacles to developing and maintaining relationships. Socioeconomic, environmental, and psychosocial barriers were offered as explanations for their limited social networks in the US. Understanding experiences of social isolation as well as barriers to forging social networks can help inform the development of social support interventions that can contribute to improved health among Latinos. 相似文献
110.
Stephen V. Flynn Seth D. Olson Adriana D. Yellig 《Journal of counseling and development : JCD》2014,92(3):280-293
Grounded theory provided a framework for examining 25 acculturating American Indian college students, 12 relatives of acculturating American Indians, and 7 postsecondary administrators. Acculturation was defined as the transformative process resulting from the integration of tribal culture and predominately White culture. Data sources included individual interviews, focus groups, and artifact analysis. The 16 emergent themes form an acculturation theory centered on a strength‐based acculturation process affecting American Indians’ transition to predominately White postsecondary settings. 相似文献