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71.
Facilitation of memory extinction by manipulation of the endocannabinoid (eCB) system has been recently studied in several paradigms. Our previous results pointed to facilitation of contextual fear memory extinction by a low dose of a cannabinoid agonist, with a suggestion of short-term effects. The aim of the present study was to further investigate the effects of cannabinoid drugs in the short- and long-term extinction of conditioned fear using an extended extinction protocol. Male Wistar rats were placed in a conditioning chamber and after 3 min received a footshock (1.5 mA, 1 s). On the next day, they received i.p. drug treatment (WIN55212-2 0.25 mg/kg, AM404 10 mg/kg, SR141716 A 1 mg/kg) and were re-exposed to the conditioning chamber for 30 min (extinction training). No-Extinction groups received the same drug treatment, but were exposed for 3 min to the conditioning chamber. A drug-free test of contextual memory (3 min) was performed 7 days later. The cannabinoid agonist WI55212-2 and the inhibitor of eCB metabolism/uptake AM404 facilitated short-term extinction. In addition, long-term effects induced by treatments with WIN55212 and AM404 were completely divergent to those of SR141716A treatment. The present results confirm and extend previous findings showing that the eCB system modulates short-term fear memory extinction with long-lasting consequences. 相似文献
72.
The self in cyberspace 总被引:1,自引:0,他引:1
Christian Roesler 《The Journal of analytical psychology》2008,53(3):421-436
Abstract: Jung's concept of the Self is compared with current theories of identity formation in post‐modern society concerning the question: is the self constituted through experience and cultural influences—as it is argued by current theories in the social sciences—or is it already preformed inside the person, as Jung argues? The impact of communication media on the formation of identity in today's societies is discussed with a focus on internet communication and virtual realities. The resulting types of identities are conceptualized as polycentric which has surprising parallels to Jung's idea of the Self. The epistemology of constructivism and parallels in Jung's thought are demonstrated. Jung's work in this respect often appears contradictory in itself but this can be dealt with by a postmodern approach which accepts a plurality of truths. 相似文献
73.
Tabea Roesler 《Dialog》2006,45(1):63-73
Abstract: Influenced by feminist process theology, this article offers a difference‐oriented reconstruction of Paul Tillich's anthropology. The first section analyzes Tillich's anthropological reductionism at the “basis”(Grund ) of his unity‐oriented binary ontology and epistemology. The second section discloses Tillich's “reverse‐dynamics,” co‐present beside and despite of his anthropological “basis.” This concept of reverse‐dynamics prepares a new, pneumatologically and christologically deepened, “ground”(Grund ) for personhood and life as multidimensional. 相似文献
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75.
Carlos Cornejo Franco Simonetti Agustín Ibáñez Nerea Aldunate Francisco Ceric Vladimir López Rafael E. Núñez 《Brain and cognition》2009
In recent years, studies have suggested that gestures influence comprehension of linguistic expressions, for example, eliciting an N400 component in response to a speech/gesture mismatch. In this paper, we investigate the role of gestural information in the understanding of metaphors. Event related potentials (ERPs) were recorded while participants viewed video clips of an actor uttering metaphorical expressions and producing bodily gestures that were congruent or incongruent with the metaphorical meaning of such expressions. This modality of stimuli presentation allows a more ecological approach to meaning integration. When ERPs were calculated using gesture stroke as time-lock event, gesture incongruity with metaphorical expression modulated the amplitude of the N400 and of the late positive complex (LPC). This suggests that gestural and speech information are combined online to make sense of the interlocutor’s linguistic production in an early stage of metaphor comprehension. Our data favor the idea that meaning construction is globally integrative and highly context-sensitive. 相似文献
76.
H. Theresa Chang Rafael Klorman Sally E. Shaywitz Jack M. Fletcher Karen E. Marchione John M. Holahan Karla K. Stuebing Joan T. Brumaghim Bennett A. Shaywitz 《Journal of abnormal child psychology》1999,27(3):237-245
A paired-associate learning (PAL) test was administered to 22 community volunteers without disruptive disorders and 197 children (7.5–13.5 years-old) presenting with the inattentive and combined subtypes of attention-deficit/hyperactivity disorder (ADHD) either in combination with or without oppositional defiant disorder (ODD). Participants were screened for learning disorders. In comparison to non-ADHD participants, children with ADHD achieved worse PAL and made errors rated as more acoustically and less semantically similar to the correct paired associates. These deficits were not related to hyperactivity–impulsivity or comorbid ODD. These results suggest that ADHD children are less competent at PAL and use less efficient learning strategies than their non-ADHD peers. 相似文献
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78.
The transactive memory system (TMS) construct is one of the most extended theoretical approaches to understand the role of cognitive processes at group level in the effectiveness of work teams. This study examined the relationships among TMS, performance, satisfaction and functional communication in decision-making teams. 40 four-person teams were asked to suppose they were expert consulting teams advising a fictitious organization on how to solve a problem with their employees. Results showed a mediating effect of TMS on the relationships between functional communication, perceived team performance and satisfaction. Contrary to our expectations, TMSs were not related to performance as evaluated by external raters. These findings suggest the importance of team communication in the formation of TMSs, as well as their implications for the effectiveness of decision-making teams. 相似文献
79.
Many proposals from the analysis of social networks focused on the study of scientific collaboration have been made recently. The Small Worlds theory seems to be the most efficient to study the inner features of the scientific community. Those researches have demonstrated that small communities are based on some key individuals who connect some groups which, on the contrary, would be disconnected. One of the disadvantages from the perspective of the analysis of networks is the lack of researches of particular nodes. With the implementation of a pseudocode algorithm of Floyd, we try to avoid this. To study how a small community is formed and, as a research of one case, we observe the invisible college which is formed when connecting the fifteen most productive authors of the Journal of Personality and Social Psychology . 相似文献
80.
The aim of this study was to analyze sexual behaviors and attitudes of children 9-14 years old in Spain. In this article we present data from 470 children of which 52% are boys and 48% girls. In order to evaluate the sample, Information, Attitudes and Behaviors related to Health Questionnaire (CIACS-II) was used. Results evidence that boys 9 years old already show behaviors that evidence their interest towards sexuality. 8% have sometimes masturbated and 9% have used pornography for becoming excited. 14% of children 11-12 years old have already had sexual relations and 38% state to have sexual fantasies. Girls start to masturbate and to have sexual relations later than boys and show a prevalence of sexual fantasies and use of pornography very lower. It is necessary sexual education programs to be implanted since early ages in schools. 相似文献