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551.
Saulo G. Tractenberg Thiago W. Viola Carlos F. A. Gomes Luis Eduardo Wearick-Silva Christian H. Kristensen Lilian M. Stein 《Memory (Hove, England)》2013,21(7):955-971
Exposure to adversities during sensitive periods of neurodevelopment is associated with the subsequent development of substance dependence and exerts harmful, long-lasting effects upon memory functioning. In this study, we investigated the relationship between childhood neglect (CN) and memory using a dual-process model that quantifies recollective and non-recollective retrieval processes in crack cocaine dependents. Eighty-four female crack cocaine–dependent inpatients who did (N = 32) or did not (N = 52) report a history of CN received multiple opportunities to study and recall a short list composed of familiar and concrete words and then received a delayed-recall test. Crack cocaine dependents with a history of CN showed worse performance on free-recall tests than did dependents without a history of CN; this finding was associated with declines in recollective retrieval (direct access) rather than non-recollective retrieval. In addition, we found no evidence of group differences in forgetting rates between immediate- and delayed-recall tests. The results support developmental models of traumatology and suggest that neglect of crack cocaine dependents in early life disrupts the adult memory processes that support the retrieval of detailed representations of events from the past. 相似文献
552.
Maria C. D’Angelo Bruce Milliken Luis Jiménez Juan Lupiáñez 《Consciousness and cognition》2013,22(1):64-81
Attention is often dichotomized into controlled vs. automatic processing, where controlled processing is slow, flexible, and intentional, and automatic processing is fast, inflexible, and unintentional. In contrast to this strict dichotomy, there is mounting evidence for context-specific processes that are engaged rapidly yet are also flexible. In the present study we extend this idea to the domain of implicit learning to examine whether flexibility in automatic processes can be implemented through the reliance on contextual features. Across three experiments we show that participants can learn implicitly two complementary sequences that are associated with distinct contexts, and that transfer of learning when the two contexts are randomly intermixed depends on the distinctiveness of the two contexts. Our results point to the role of context-specific processes in the acquisition and expression of implicit sequence knowledge, and also suggest that episodic details can be represented in sequence knowledge. 相似文献
553.
Luis A. Curral Rosalind H. Forrester Jeremy F. Dawson Michael A. West 《European Journal of Work and Organizational Psychology》2013,22(2):187-204
This article describes a study of the relationships between team inputs (task type and team size) and team processes in 87 cross industry Portuguese teams, some of which had high and some low requirements to innovate. Team processes were measured using the Team Climate Inventory (TCI), which focuses on clarity of and commitment to team objectives, levels of participation, support for innovation, and quality emphases. Three hypotheses were tested. The first proposed that teams carrying out tasks with a high innovation requirement would have high scores on a measure of team processes. This was supported insofar as such teams reported higher levels of participation and support for innovation. The second hypothesis proposed that large teams would have poorer team processes. This hypothesis was confirmed. The third hypothesis concerned the interaction between size and innovation. The results suggested that large teams operating under a relatively high pressure to innovate have poorer team processes than large teams that do not have a high requirement to innovate. 相似文献
554.
Fole A González-Martín C Huarte C Alguacil LF Ambrosio E Del Olmo N 《Neurobiology of learning and memory》2011,95(4):491-497
Lewis and Fischer-344 rats have been proposed as an addiction model because of their differences in addiction behaviour. It has been suggested that drug addiction is related to learning and memory processes and depends on individual genetic background. We have evaluated learning performance using the eight-arm radial maze (RAM) in Lewis and Fischer-344 adult rats undergoing a chronic treatment with cocaine. In order to study whether morphological alterations were involved in the possible changes in learning after chronic cocaine treatment, we counted the spine density in hippocampal CA1 neurons from animals after the RAM protocol. Our results showed that Fischer-344 rats significantly took more time to carry out test acquisition and made a greater number of errors than Lewis animals. Nevertheless, cocaine treatment did not induce changes in learning and memory processes in both strains of rats. These facts indicate that there are genetic differences in spatial learning and memory that are not modified by the chronic treatment with cocaine. Moreover, hippocampal spine density is cocaine-modulated in both strains of rats. In conclusion, cocaine induces similar changes in hippocampal neurons morphology that are not related to genetic differences in spatial learning in the RAM protocol used here. 相似文献
555.
The present study describes the psychometric properties of the Portuguese version of the Mental Health Inventory-5 for use with young adolescents. A sample of 367 Portuguese students (aged 10-15 years) completed the Portuguese-language versions of Mental Health Inventory-5 (MHI-5; Berwick et al., 1991), Children's Hope Scale (CHS; Snyder et al., 1997), Students' Life Satisfaction Scale (SLSS; Huebner, 1991a), and Global Self-Worth Sub-scale (Harter, 1985). Analysis of readability, reliability (internal consistency and 1-year stability), factor structure, and criterion-related validity suggested that the MHI-5 can be appropriately used in this age group. Implications of the findings are discussed. 相似文献
556.
It has been widely demonstrated that the differential outcomes procedure (DOP) facilitates both the learning of conditional relationships and the memory for the conditional stimuli in animal subjects. For conditional discriminations in humans, the DOP also produces an increase in the speed of acquisition and/or final accuracy. However, the potential facilitative effects of differential outcomes in human memory have not been fully assessed. In the present study, we aimed to test whether this procedure improves performance on a recognition memory task in healthy adults. Participants showed significantly better delayed face recognition when differential outcomes were used. This novel finding is discussed in the light of other studies on the differential outcomes effect (DOE) in both animals and humans, and implications for future research are presented. 相似文献
557.
Martín Cabré LJ 《American journal of psychoanalysis》2011,71(4):321-328
Here we try to offer a panoramic view on the evolution of the concept of introjection in Ferenczi's thinking, until its culmination in the last annotation of Notes and Fragments on December 26, 1932. In this final note, Ferenczi invented the neologism intropression in which he tried to articulate the notion of introjections with the devastating effects of violence and parental repression, and a definite way to conceive the analytical practice. 相似文献
558.
Chunk learning (the process by which a sequence is learned and retrieved from memory in smaller, decomposed units of information) has been postulated as the main learning mechanism underlying sequence learning (Perruchet & Pacton, 2006). However, the evidence for chunk formation has been elusive in the continuous serial reaction-time task, whereas other continuous, statistical processes of learning account well for the results observed in this task. This article proposes a new index to capture segmentation in learning, based on the variance of responding to different parts of a sequence. We assess the validity of this measure by comparing performance in a control group with that of another group in which color codes were used to induce a uniform segmentation. Results showed that evidence of chunking was obtained when the color codes were consistently coupled to responses, but that chunking was not maintained after the colors were removed. 相似文献
559.
Felix E Hernández LA Bravo M Ramirez R Cabiya J Canino G 《Journal of abnormal child psychology》2011,39(4):589-600
We examined the persistence of psychiatric disorders at approximately 18 and 30 months after a hurricane among a random sample
of the child and adolescent population (4–17 years) of Puerto Rico. Data were obtained from caretaker-child dyads (N = 1,886) through in person interviews with primary caretakers (all children) and youth (11–17 years) using the Diagnostic
Interview Schedule for Children IV in Spanish. Logistic regressions, controlling for sociodemographic variables, were used
to study the relation between disaster exposure and internalizing, externalizing, or any disorder. Children’s disaster-related
distress manifested as internalizing disorders, rather than as externalizing disorders at 18 months post-disaster. At 30 months,
there was no longer a significant difference in rates of disorder between hurricane-exposed and non-exposed youth. Results
were similar across age ranges. Rates of specific internalizing disorders between exposed and unexposed children are provided.
Research and clinical implications are discussed. 相似文献
560.
Relations between voting choice and similarity in traits between voters and political candidates are examined in two studies. The first study was conducted in Spain, where the personalities of Mariano Rajoy and José Luis Rodríguez Zapatero were assessed. The second study was conducted in Italy, where the politicians assessed were Walter Veltroni and Silvio Berlusconi. Results show in both cases a similarity between voters' self-reported personality and their appraisals of the leaders of the party for which they voted. Similarity is generally higher with respect to traits that are the most distinctive for each platform and its leader. The findings show a higher similarity between voters and their leaders on the markers of agreeableness, such as "loyal" and "sincere." Findings hold across countries and political figures, demonstrating the role that personal characteristics of both voters and candidates play in orienting political preference. 相似文献