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241.
Amaya M. Singh 《Journal of motor behavior》2013,45(4):328-339
ABSTRACT. The effect of aerobic exercise on primary motor cortical excitability is a relevant area of interest for both motor learning and motor rehabilitation. Transient excitability changes that may follow an exercise session are a necessary precursor to more lasting neuroplastic changes. While the number of studies is limited, research suggests that a session of aerobic exercise can create an ideal environment for the early induction of plasticity. Potential mechanisms include the upregulation of neurotransmitter activity, altered cerebral metabolism and cortisol levels, and increases in brain-derived neurotrophic factor. While there is considerable evidence that chronic physical activity positively impacts brain health and function, studies examining cortical excitability changes and motor performance after a single session of exercise are lacking. Further research is required to determine the clinical utility and feasibility of aerobic exercise. 相似文献
242.
Madeleine S. C. Wallien Lena C. Quilty Thomas D. Steensma Devita Singh Susan L. Lambert Annie Leroux 《Journal of personality assessment》2013,95(6):545-552
We administered the Gender Identity Interview for Children, a 12-item child-informant measure, to children referred clinically for gender identity problems in Toronto, Ontario, Canada (N = 329) and Amsterdam, The Netherlands (N = 228) and 173 control children. Confirmatory factor analysis identified a Cognitive Gender Confusion factor (4 items) and an Affective Gender Confusion factor (8 items). Patients from both clinics had a significantly higher deviant total score than the controls, and the Dutch patients had a significantly higher deviant score than the Toronto patients. In this cross-national study, we are the first to report on the validity of this measure to discriminate children with gender identity disorder from controls outside of North America. 相似文献
243.
Elena L. Grigorenko Colin G. DeYoung Maria Eastman Marya Getchell Gerald J. Haeffel Britt af Klinteberg Roman A. Koposov Lars Oreland Andrew J. Pakstis Oleg A. Ponomarev Vladislav V. Ruchkin Jay P. Singh Carolyn M. Yrigollen 《Aggressive behavior》2010,36(3):158-176
A number of dopamine‐related genes have been implicated in the etiology of violent behavior and conduct problems. Of these genes, the ones that code for the enzymes that influence the turnover of dopamine (DA) have received the most attention. In this study, we investigated 12 genetic polymorphisms in four genes involved with DA functioning (COMT, MAOA and MAOB, and DβH) in 179 incarcerated male Russian adolescents and two groups of matched controls: boys without criminal records referred to by their teachers as (a) “troubled‐behavior‐free” boys, n=182; and (b) “troubled‐behavior” boys, n=60. The participants were classified as (1) being incarcerated or not, (2) having the DSM‐IV diagnosis of conduct disorder (CD) or not, and (3) having committed violent or nonviolent crimes (for the incarcerated individuals only). The findings indicate that, although no single genetic variant in any of the four genes differentiated individuals in the investigated groups, various linear combinations (i.e., haplotypes) and nonlinear combinations (i.e., interactions between variants within and across genes) of genetic variants resulted in informative and robust classifications for two of the three groupings. These combinations of genetic variants differentiated individuals in incarceration vs. nonincarcerated and CD vs. no‐CD groups; no informative combinations were established consistently for the grouping by crime within the incarcerated individuals. This study underscores the importance of considering multiple rather than single markers within candidate genes and their additive and interactive combinations, both with themselves and with nongenetic indicators, while attempting to understand the genetic background of such complex behaviors as serious conduct problems. Aggr. Behav. 36:158–176, 2010. © 2010 Wiley‐Liss, Inc. 相似文献
244.
Angela D. Adkins Ashvind N. Singh Alan S. W. Winton Gerald F. McKeegan Judy Singh 《Journal of child and family studies》2010,19(2):175-183
Maladaptive behaviors, such as aggressive and disruptive behaviors, are a significant risk factor for maintaining community
placement by individuals with intellectual disabilities. When experienced researchers provide training to individuals with
intellectual disabilities on a mindfulness-based strategy, Meditation on the Soles of the Feet, the individuals are able to effectively self-manage their maladaptive behaviors. We investigated whether similar effectiveness
would be found if community-based therapists provided the training to similar individuals living in the community. Three adults
with mild intellectual disabilities and mental illness living in the community were taught by a community-based therapist
to use this strategy to control maladaptive behaviors that included verbal aggression, disruptive behavior and physical aggression.
They were taught to shift the focus of their attention from the negative emotions that triggered their maladaptive behavior
to a neutral stimulus, the soles of their feet. All three individuals were able to reduce their maladaptive behaviors to near-zero
levels and maintain their community placement that they had been at risk for losing, due to their maladaptive behavior. Subjective
measures of various psychological symptoms showed a reduction in two of the individuals. Our study suggests that the demonstrated
effectiveness of Meditation on the Soles of the Feet can be achieved by a community-based therapist. 相似文献
245.
246.
The Moderating Impact of Social Networks on the Relationships Among Core Values,Partisanship, and Candidate Evaluations
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Social networks are increasingly becoming recognized as a source of influence on political attitudes and behavior. In this study, we examine the moderating impact of social networks on the relationship among several attitudes. We argue that those who regularly interact with individuals with different views from their own will be more likely to think of themselves in nonpartisan terms. It is therefore hypothesized that an individual's discussion network influences the relationship between one's support for various core values and one's partisanship. As a corollary, we argue that disagreement in discussion networks reduces individuals' reliance on partisanship when forming subsequent attitudes. To test these propositions, we employ data asking respondents to list individuals with whom they discuss politics on a regular basis and who such individuals supported in a recent election to create a measure of network disagreement. Empirical tests provide strong support for our hypotheses. 相似文献
247.
Jakeet Singh 《希帕蒂亚:女权主义哲学杂志》2015,30(4):657-674
This article probes the relative absence of religion within discussions of intersectionality, and begins to address this absence by bringing intersectionality studies into conversation with another significant field within feminist theory: the study of religious women's agency. Although feminist literatures on intersectionality and religious women's agency have garnered a great deal of scholarly attention, these two bodies of work have rarely been engaged together. After surveying both fields, I argue that research on religious women's agency not only exposes an ambiguity at the heart of intersectionality between identity and oppression, but also challenges several aspects of intersectionality studies, especially as recent theorists increasingly turn away from identity politics in favor of a structural critique of power. These aspects of intersectionality include its often unsituated critique of power, as well as its reliance on a negatively defined consensus on anti‐oppression. 相似文献
248.
Journal of Indian Council of Philosophical Research - The present paper is an attempt to develop late Professor K. Satchidananda Murty’s quest to articulate Immanent and Transcendent in his... 相似文献
249.
250.
The current study examined developmental differences from the age of 5 to 18 in the creation process of own- and other-race facial composites. In addition, it considered how differences in the creation process affect similarity ratings. Participants created two composites (one own- and one other-race) from memory. The complexity of the composite creation process was recorded during Phase One. In Phase Two, a separate group of participants rated the composites for similarity to the corresponding target face. Results support the cross-race effect, developmental differences (based on composite creators) in similarity ratings, and the importance of the creation process for own- and other-race facial composites. Together, these findings suggest that as children get older the process through which they create facial composites becomes more complex and their ability to create facial composites improves. Increased complexity resulted in higher rated composites. Results are discussed from a psycho-legal perspective. 相似文献