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301.
In this study we investigated the effects of state and trait aspects of self-focused attention on genital and subjective sexual arousal of sexually functional, healthy women during presentation of audiovisual erotic stimuli. Psychophysiological sexual response was measured as vaginal pulse amplitude using a vaginal photoplethysmograph. Experiential aspects of sexual arousal were measured both during stimulus presentation and retrospectively after stimulus offset. Trait level of sexual self-focus was measured with the Sexual Self-Consciousness Scale. State self-focus was induced by switching on a TV camera that pointed at the participant's face and upper torso. A manipulation check revealed that both groups experienced equally elevated levels of self-focused attention of their physical appearance. Induction of state self-focus per se did not affect genital responses, but an interaction effect of self-focus and participants' level of trait sexual self-focus was revealed. Compared with women with low scores on this trait, women with high scores exhibited smaller genital responses when state self-focus was induced. Both groups did not differ when no self-focus was induced. Increase of state self-focus did not affect subjective sexual arousal, but participants with a high level of trait sexual self-focus reported stronger subjective arousal, compared with those with low trait level. The results were discussed with reference to previous work in this field. Some implications for treatment of sexual arousal disorder were discussed. 相似文献
302.
Several studies have suggested that children with developmental coordination disorder (DCD) have difficulties in the fine-tuning of manual force. However, parameterization of the generated force per se is hard to test under normal circumstances as movement planning and execution are also involved. In the present study, an isometric force production task was used to test the hypothesis that children with DCD have a decreased ability to scale force to a required force level and to maintain steady low to submaximal forces. We also tested if the developmental trends were different between the children with DCD and typically developing (TD) children. Twenty-four children with DCD and 24 matched TD children, divided over three age groups (7-9-11 years) participated in this study. Analysis of the data showed that DCD and TD children are equally able to adapt their generated force to the required levels, however DCD children produced a less steady force, even more variable than in the youngest TD children. These results suggest that problems in force control in children with DCD are caused by a higher level of inherent noise of the output system. Since younger DCD children are much more affected than older ones it is suggested that these children are able to learn a strategy to cope with their increased stochastic variability, especially at higher force levels. 相似文献
303.
An important topic in the evolution of language is the kinds of grammars that can be computed by humans and other animals. Fitch and Hauser (F&H; 2004) approached this question by assessing the ability of different species to learn 2 grammars, (AB)(n) and A(n) B(n) . A(n) B(n) was taken to indicate a phrase structure grammar, eliciting a center-embedded pattern. (AB)(n) indicates a grammar whose strings entail only local relations between the categories of constituents. F&H's data suggest that humans, but not tamarin monkeys, learn an A(n) B(n) grammar, whereas both learn a simpler (AB)(n) grammar (Fitch & Hauser, 2004). In their experiments, the A constituents were syllables pronounced by a female voice, whereas the B constituents were syllables pronounced by a male voice. This study proposes that what characterizes the A(n) B(n) exemplars is the distributional regularities of the syllables pronounced by either a male or a female rather than the underlying, more abstract patterns. This article replicates F&H's data and reports new controls using either categories similar to those in F&H or less salient ones. This article shows that distributional regularities explain the data better than grammar learning. Indeed, when familiarized with A(n) B(n) exemplars, participants failed to discriminate A(3) B(2) and A(2) B(3) from A(n) B(n) items, missing the crucial feature that the number of As must equal the number of Bs. Therefore, contrary to F&H, this study concludes that no syntactic rules implementing embedded nonadjacent dependencies were learned in these experiments. The difference between human linguistic abilities and the putative precursors in monkeys deserves further exploration. 相似文献
304.
Dorval M Bouchard K Maunsell E Plante M Chiquette J Camden S Dugas MJ Simard J;INHERIT BRCAs 《Journal of genetic counseling》2008,17(4):314-326
The study objective was to compare breast cancer screening practices, lifestyle behaviors and psychological distress among 640 women initiating BRCA1/2 testing to those among 9,498 similarly-aged women from the general population. Health behaviors and psychological distress were reported in a self-administered questionnaire at pre-test genetic counseling. Regression analyses indicate that high-risk women were more frequently performing breast cancer screening and, in the case of those previously diagnosed with cancer, were more likely to be non-smokers and physically active than women from general population. However, women initiating BRCA1/2 testing were significantly more distressed than controls. Globally, high-risk women seemed to be well informed about recommendations for women who are at high risk and to have access to screening adapted to their risk level. Given their significant psychological distress, providing minimal psychosocial support to all women undergoing BRCA1/2 testing at pre-test genetic counseling is relevant. 相似文献
305.
306.
ABSTRACT— Aging is associated with preserved enhancement of emotional memory, as well as with age-related reductions in memory for negative stimuli, but the neural networks underlying such alterations are not clear. We used a subsequent-memory paradigm to identify brain activity predicting enhanced emotional memory in young and older adults. Activity in the amygdala predicted enhanced emotional memory, with subsequent-memory activity greater for negative stimuli than for neutral stimuli, across age groups, a finding consistent with an overall enhancement of emotional memory. However, older adults recruited greater activity in anterior regions and less activity in posterior regions in general for negative stimuli that were subsequently remembered. Functional connectivity of the amygdala with the rest of the brain was consistent with age-related reductions in memory for negative stimuli: Older adults showed decreased functional connectivity between the amygdala and the hippocampus, but increased functional connectivity between the amygdala and dorsolateral prefrontal cortices. These findings suggest that age-related differences in the enhancement of emotional memory might reflect decreased connectivity between the amygdala and typical subsequent-memory regions, as well as the engagement of regulatory processes that inhibit emotional responses. 相似文献
307.
April Ruiz Juan Carlos Gómez Jean Jacques Roeder Richard W. Byrne 《Animal cognition》2009,12(3):427-434
Although primates have often been found to co-orient visually with other individuals, members of these same species have usually failed to use co-orientation to find hidden food in object-choice experiments. This presents an evolutionary puzzle: what is the function of co-orientation if it is not used for a function as basic as locating resources? Co-orientation responses have not been systematically investigated in object-choice experiments, and requiring co-orientation with humans (as is typical in object-choice tasks) may underestimate other species’ abilities. Using an object-choice task with conspecific models depicted in photographs, we provide experimental evidence that two lemur species (Eulemur fulvus, n = 4, and Eulemur macaco, n = 2) co-orient with conspecifics. Secondly, by analysing together two measures that have traditionally been examined separately, we show that lemurs’ gaze following behaviour and ultimate choice are closely linked. Individuals were more likely to choose correctly after having looked in the same direction as the model, and thus chose objects correctly more often than chance. We propose a candidate system for the evolutionary origins of more complex gaze following: ‘gaze priming.’ 相似文献
308.
Benoît Louvet Patrick Gaudreau André Menaut Jacques Genty Pascale Deneuve 《Psychology of sport and exercise》2009,10(1):124-135
ObjectivesThis study examined the longitudinal factor invariance of problem-focused, disengagement-focused, and seeking social support coping to provide an unbiased estimation of the mean-level and differential stability of coping with longitudinal confirmatory factor analyses with mean structure. This study also examined different patterns of longitudinal coping utilization with Latent Class Growth Modeling (LCGM).MethodSoccer referees (N = 227), aged from 15 to 53 years, completed a French version of the Ways of Coping Checklist at three times over an entire season.ResultsThe structure of the coping dimensions could be assumed longitudinally invariant. The mean-level utilization of problem-focused coping did not change significantly over the season despite the presence of test–retest instability. Both disengagement and seeking support coping utilization have significantly decreased over time while displaying moderate test–retest stability. Results of LCGM revealed that, while most referees did not change their utilization of problem-focused coping, two subgroups have respectively increased and decreased their use of problem-focused coping. Two subgroups decreased significantly their use of both disengagement-oriented and seeking support coping whereas one subgroup maintained the same level of utilization.ConclusionsResults indicated that coping utilization displayed both trait-like and state-like properties, differing for distinct subgroups of referees. This research provided further evidence for the need of moving beyond the sole reliance on traditional analyses of change to recast the trait-like versus state-like debate on coping into a more idiosyncratic-nomothetic framework. 相似文献
309.
Several authors have reported that participants have a leftward bias when holding a newborn or young infant. Our study of mothers met before and after their infant's birth sought to ascertain whether particular combinations of affective symptoms (depression, anxiety) and holding positions (horizontal versus vertical) were related to holding‐side biases. Our results showed that (a) mothers displayed a significant leftward (71%) holding bias, (b) mothers with affective symptoms held their newborn on the right side and more frequently in the vertical position, and (c) hemispheric specialization for perceiving visual emotions had no significant effect on the holding‐side biases of new mothers. These results suggest that maternal affective symptoms have a dominant effect on the determination of holding‐side preferences, when associated with a particular holding position. Copyright © 2008 John Wiley & Sons, Ltd. 相似文献
310.