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排序方式: 共有149条查询结果,搜索用时 31 毫秒
81.
AbstractThe relationship between music training and cognitive performance has been much explored over the last decades. A variety of evidence shows a different neurological and cognitive processing in the population who have undergone instrumental music training compared to people who have not. A review of the literature shows the many advantages in cognitive skills musicians have gained from musical training, such as benefits to their executive functions and other aspects of cognition, in children as well as adults and the elderly. This study investigates in greater depth certain cognitive aspects associated with musical training in the adult population. Specifically, it explores its relationship with inhibition, working memory (verbal and visual-spatial), flexibility, processing speed, fluid intelligence and divided attention. Our results suggest that there is indeed a relationship between musical training and improvements in cognitive performance, both in executive functions and in other areas of cognition. 相似文献
82.
Laurence Claes Fernando Fernández-Aranda Susana Jimenez-Murcia Cristina Botella Felipe F. Casanueva Rafael de la Torre José M. Fernández-Real Gema Frühbeck Francisco J. Tinahones Nuria Vilarrasa Mónica Montserrat-Gil de Bernabé Roser Granero Zaida Agüera Carolina Sancho Jennifer Muehlenkamp José M. Menchón 《Personality and individual differences》2013
The aims of the present study were to determine the prevalence of non-suicidal self-injury (NSSI) in different eating disorder (ED) groups and morbid obesity, and to investigate whether NSSI in different ED/obesity groups co-occur with impulsivity. We assessed 535 individuals (365 ED and 170 obese patients) by means of a single item assessing lifetime NSSI and the Barratt Impulsivity Scale, which measures different dimensions of impulsivity. The results showed that 19.1% of the ED patients engaged in at least one act of NSSI during their life-time. NSSI was more prevalent in Bulimia Nervosa, Binge Eating Disorder, Eating Disorder Not Otherwise Specified compared to Anorexia Nervosa, Restrictive type and morbid obesity. Finally, ED/obese patients who engaged in NSSI scored significantly higher on the attentional, motor and non-planning subscales than patients without NSSI. The implications of these findings for the treatment of NSSI in binge/purging ED patients are discussed. 相似文献
83.
Achievement goals, social goals, and motivational regulations in physical education settings 总被引:1,自引:0,他引:1
Cecchini Estrada JA González González-Mesa C Méndez-Giménez A Fernández-Río J 《Psicothema》2011,23(1):51-57
This study examined the relationship between achievement and social goals, and explored how both goals affect students' level of informed self-determination in Physical Education. Participants were 395 high school students. Three scales were used to assess achievement, social goals, and motivation. Several hierarchical regression analyses revealed that mastery-approach goals were the greatest contributors to the individuals' levels of self-determination. Achievement and social goals were found to be separate predictors of students' levels of self-determination, and this highlights the importance of separating mastery and performance goals into avoidance and approach profiles. Girls reported significantly higher values than boys on responsibility, relationship, and mastery-avoidance goals, whereas boys scored higher on performance-approach goals. Researchers could use achievement and social goals to study students' motivation and achievement in Physical Education settings. 相似文献
84.
Naeser MA Martin PI Theoret H Kobayashi M Fregni F Nicholas M Tormos JM Steven MS Baker EH Pascual-Leone A 《Brain and language》2011,119(3):206-213
This study sought to discover if an optimum 1 cm2 area in the non-damaged right hemisphere (RH) was present, which could temporarily improve naming in chronic, nonfluent aphasia patients when suppressed with repetitive transcranial magnetic stimulation (rTMS). Ten minutes of slow, 1 Hz rTMS was applied to suppress different RH ROIs in eight aphasia cases. Picture naming and response time (RT) were examined before, and immediately after rTMS. In aphasia patients, suppression of right pars triangularis (PTr) led to significant increase in pictures named, and significant decrease in RT. Suppression of right pars opercularis (POp), however, led to significant increase in RT, but no change in number of pictures named. Eight normals named all pictures correctly; similar to aphasia patients, RT significantly decreased following rTMS to suppress right PTr, versus right POp. Differential effects following suppression of right PTr versus right POp suggest different functional roles for these regions. 相似文献
85.
Schiffino FL Murawski NJ Rosen JB Stanton ME 《Neurobiology of learning and memory》2011,95(2):190-198
Contextual fear conditioning emerges around post-natal day (PD) 23 in the rat. This is thought to reflect hippocampus-dependent conjunctive learning, which binds the individual features of the context into a unified representation (Rudy, 1993). However, context conditioning can also be supported by hippocampus-independent, feature-based simple associations (Rudy, 2009) and these may operate at PD 23-24 (Pugh & Rudy, 1996). To address this issue, we studied the ontogeny of a variant of contextual fear conditioning, termed the context-preexposure-facilitation-effect (CPFE), in which exposure to context and (immediate) foot shock occur on successive occasions. This variant requires conjunctive as opposed to feature-based simple associations (Rudy, 2009). We tested PD 17, 24, and 31 rats on the CPFE vs. conventional context conditioning (Exp. 1) and on the CPFE with stronger reinforcement (Exp. 2). The CPFE emerged on PD 24 regardless of reinforcer strength and in parallel with context conditioning. Infusions of the NMDA-receptor antagonist, MK-801, into the dorsal hippocampus just before pre-exposure on PD 24 eliminated the CPFE, whereas infusions occurring after pre-exposure had no effect (Exp. 3). These findings demonstrate a role of hippocampal NMDA receptors in the CPFE as early as PD 24 and implicate conjunctive learning mechanisms in the ontogeny of contextual fear conditioning. 相似文献
86.
de Lima MN Presti-Torres J Dornelles A Scalco FS Roesler R Garcia VA Schröder N 《Neurobiology of learning and memory》2011,95(3):305-310
The role of dopamine receptors in regulating the formation of recognition memory remains poorly understood. Here we show the effects of systemic administration of dopamine receptor agonists and antagonists on the formation of memory for novel object recognition in rats. In Experiment I, rats received an intraperitoneal (i.p.) injection of vehicle, the selective D1 receptor agonist SKF38393 (1.0 and 5.0mg/kg), or the D2 receptor agonist quinpirole (1.0 and 5.0mg/kg) immediately after training. In Experiment II, rats received an injection of vehicle, the dopamine receptor antagonist SCH23390 (0.1 and 0.05 mg/kg), or the D2 receptor antagonist raclopride (0.5 and 0.1mg/kg) before training, followed by an injection of vehicle or the nonselective dopamine receptor agonist apomorphine (0.05 mg/kg) immediately after training. SKF38393 at 5mg/kg produced an enhancement of novel object recognition memory measured at both 24 and 72 h after training, whereas the dose of 10mg/kg impaired 24-h retention. Posttraining administration of quinpirole did not affect 24-h retention. Apomorphine enhanced memory in rats given pretraining raclopride, suggesting that the effect was mediated by selective activation of D1 receptors. The results indicate that activation of D1 receptors can enhance recognition memory consolidation. Importantly, pharmacological activation of D1 receptors enhanced novel object recognition memory even under conditions in which control rats showed significant retention. 相似文献
87.
The aim of this paper is to examine specific features of modern individualistic societies that contribute to "emotions" and "cognitions" becoming a matter of privacy. Although some behavior analysts identify emotions and cognitions as "private events," we argue with Skinner (1945) that cognitions and emotions are relations among events and that their origin is in public events in the contingencies of reinforcement maintained by other people. Guided by Elias (1939/1996), we suggest that the shift from feudal economies to market economies involved the increasing individualization of society's members. This individualizing process includes the socially maintained contingencies that bring some verbal responses under control of private stimulation and reduce the magnitude of some verbal responses to a covert level. Behavioral relations in which either stimuli or responses (or both) cannot be observed by others set the stage for a concept of "privacy." Changes in societal contingencies that gave rise to individualization and the attribution of privacy to cognitions and emotions are suggested to include the following: (a) increasing frequency of individual consequences that have no apparent or direct relevance to the group; (b) increasing numbers of concurrent contingencies and choice requirements; (c) conflicts between immediate and delayed consequences for the individual; and (d) conflicts between consequences for the individual and for the group. 相似文献
88.
Religious beliefs have had a key role in shaping local responses to HIV and AIDS. As the world's largest Catholic country, Brazil is no exception. Yet little research has been conducted to document how the religious doctrine is enacted in practice among its lay leaders and followers. In this article, we present ethnographic research from Recife, Brazil, conducted to understand the way in which religious doctrines are interpreted on a local level. Contextualized within the sociology of contemporary Brazilian Catholicism, we draw on interviews with clergy members, lay leaders and parishioners in order to discuss how the Catholic Church's vision of sexuality translates into the everyday lives of its followers by. We explore the disjuncture between the Catholic ideals of fidelity and delaying sex until marriage with the everyday reality of the Church's followers, highlighting the role that gender plays in defining sexual roles and expectations. We conclude posing questions for future research and HIV prevention strategies considering the formal institutional response of the Brazilian Catholic Church to AIDS on one hand, and the social and cultural contexts in which Catholics live their daily lives on the other. 相似文献
89.
Mikael Hans Sodergren Felipe Orihuela-Espina James Clark Ara Darzi Guang-Zhong Yang 《Cognitive processing》2010,11(3):275-283
Natural Orifice Translumenal Endoscopic Surgery (NOTES) represents a new paradigm in minimally invasive surgery whereby an
operator uses a flexible instrument to navigate within an anatomical space. The flexible instrument is introduced via a natural
body orifice such as the mouth to perform an operative intervention controlled by the surgeon without making incisions in
the anterior abdominal wall. It differs from laparoscopic (traditional keyhole) surgery in two main ways: (1) the instruments
used in NOTES are not rigid as in laparoscopic surgery and not specifically designed for this application; and (2) there are
no incisions in the anterior abdominal wall. Disorientation during NOTES is a significant problem because as in laparoscopic
surgery the operator typically uses a 2D camera-monitor interface for visualisation by the camera at the site of the operation.
Furthermore, the positional cue offered by the external component (outside the body) of the camera is absent, and camera navigation
is more cumbersome. When the operator is disorientated, it is important to be able to re-orientate quickly to minimise potential
surgical errors. It is hypothesised that when surgeons become disorientated, there exist discrete patterns in psychophysical
behaviour which are associated with effective re-orientation, and that these patterns are recognisable. In this study, we
examine visual re-orientation behaviour in 18 subjects using eye-tracker data in a model comprised of selective image manipulation
of everyday objects in a box trainer. We characterise effective behaviour using a fixation sequence similarity-based hidden
Markov model. We show that the output of this algorithm is reliable in differentiating visual behavioural sequences, and that
there are specific behavioural patterns and strategies associated with successful re-orientation in this model. Good re-orientation
strategy appears to rely on identification and focus on a central object within the scene and judging position of its surrounding
peripheral objects, suggesting integration of both geometric and feature information in a systematic way. Using selective,
inconsistent feature cues for re-orientation were associated with less effective performance. 相似文献
90.