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1.
The QT interval of the electrocardiogram, although often coordinated in an inverse relationship to heart rate, appears from the existing evidence to be regulated by mechanisms separate from those that govern heart rate. The purpose of this inquiry was to explore further the relationship of the two and to test other factors that may contribute to the regulation of QT. Heart rate and QT duration were measured in healthy human subjects during postural change and exercise. The data showed that, while coordinated in an inverse relationship under some circumstances, under others heart rate and QT were discordant, leading to the inference that there is no fixed linkage between the two. Previous work by the authors and other published studies have suggested that ventricular contractility may have more predictable association with QT shortening than do increases in heart rate. Observations of force of ventricular contraction (HI and IJ velocity) as reflected in ballisto-cardiographic tracings were made using each of 12 human subjects as the authors’ own control. The data revealed a highly significant correlation between the velocity measures and QT duration (p<0.01) but not heart rate. These findings led to the conclusion that there is clearly not a fixed relationship between heart rate and QT interval and to the hypothesis that QT may more closely reflect the degree of cardiac contractility.  相似文献   

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This essay first situates the development of self psychology within the culture of North American individualism, then delves into its relevance for understanding Asians, and comes full circle in reassessing what is universal or culturally variable in the current formulation of self psychology. The Asian self is compared with the North American one, and Asian familial hierarchical relationships with American egalitarian ones, resulting in a different cultural structuring of selfobject relationships, including the psychoanalytic one. A comparative psychology of idealizing selfobject relationships is then developed. Intercultural encounters between Asians and North Americans in the United States reveal problems in the interface because of the different culturally influenced selfobject relationships.  相似文献   

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The notion that differences in national culture influence international buyer‐seller relationships (and, indeed, all aspects of international management) is not only held as true but also axiomatic. This study questions the degree to which cultural differences impact upon buyer‐seller relations for seven key dimensions using Hofstede's indices of culture. Via two stages of data collection using two methodological approaches (seven interviews and 322 useable responses from a mail survey), the impact of culture on international buyer‐seller relationships was examined. The study's findings identified little evidence to support the popular idea that culture exerts a significant influence on international business relationships. Instead, the findings suggest that some managers perceived factors such as communication/language barriers, political barriers, geographic distance, economic factors, industry barriers, time differences, technology barriers, legal differences and infrastructure barriers as being more likely to have a greater impact on cross‐national relationships. Copyright © 2003 Henry Stewart Publications.  相似文献   

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Individuals with obesity in Western societies often face weight-related stigmatization and social exclusion. Recurrent exposure to prejudice and negative social feedback alters one’s behavior in future social interactions. In this study, we aimed to investigate autonomic nervous system and affective responses to social interactions in individuals with obesity. Women and men with (n = 56) and without (n = 56) obesity participated in episodes of social inclusion and social exclusion using a virtual ball-tossing game. During the experiment, heart rate was measured and parasympathetic activity (overall high-frequency power and event-related cardiac slowing) was analyzed. Our results show that in novel social interactions, women with obesity, relative to the other groups, exhibited the strongest increase in parasympathetic activity. Furthermore, parasympathetic activity was related to a more negative body image in individuals with obesity, but not in lean individuals. Additionally, women with obesity reported a stronger decrease in mood after social exclusion than did the other participants. Our results demonstrate influences of objective and subjective bodily characteristics on parasympathetic cardio-regulation during social interactions. In particular, they show behavioral and physiological alterations during social interactions in women with obesity.  相似文献   

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Subjects pointed to a target viewed through a laterally displacing wedge prism that gradually varied in strength from 0 to 20 diopters over a series of 42 trials. Trials were administered under conditions of massed or distributed practice. The aftereffect that resulted was measured immediately after exposure to the prism and at intervals of 2, 4, 6, 8, 10, and 15 min. Distributed practice led to a gradual decrease in the aftereffect following prism exposure, whereas the massed practice condition produced a rapid decrease followed by a slight increase in the aftereffect.  相似文献   

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The present investigation is dedicated to the effects of the Medical Resonance Therapy Music® (MRT-Music) on basic haemodynamic parameter in children with transient arterial hypertension due to disturbances of the autonomic nervous system with different degrees of initial sympatheticotonia. After the nuclear accident at Chernobyl many children developed blood pressure too high for their age norm. Having already observed a decrease in high blood pressure in pregnant women during Medical Resonance Therapy Music (Gerasimovich, Einysh, 1999; Gerasimovich, Sidorenko, 1995; Sidorenko, Tetiorkina, Korotkov, 1997) we studied the effects of the Medical Resonance Therapy Music® (MRT-Music) on such children—with very positive results: the treatment with the music preparations demonstrated a clear sympatholythic effect and led the disturbed haemodynamic state back to its healthy age norm.  相似文献   

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This study examined whether an alteration in the effort–reward relationship, a theoretical framework based on cognitive neuroscience, could explain cognitive fatigue. Forty persons with MS and 40 healthy age- and education-matched cognitively healthy controls (HC) participated in a computerized switching task with orthogonal high- and low-demand (effort) and reward manipulations. We used the Visual Analog Scale of Fatigue (VAS-F) to assess subjective state fatigue before and after each condition during the task. We used mixed-effects models to estimate the association and interaction between effort and reward and their relationship to subjective fatigue and task performance. We found the high-demand condition was associated with increased VAS-F scores (p < .001), longer response times (RT) (p < .001) and lower accuracy (p < .001). The high-reward condition was associated with faster RT (p = .006) and higher accuracy (p = .03). There was no interaction effect between effort and reward on VAS-F scores or performance. Participants with MS reported higher VAS-F scores (p = .02). Across all conditions, participants with MS were slower (p < .001) and slower as a function of condition demand compared with HC (p < .001). This behavioural study did not find evidence that an effort–reward interaction is associated with cognitive fatigue. However, our findings support the role of effort in subjective cognitive fatigue and both effort and reward on task performance. In future studies, more salient reward manipulations could be necessary to identify effort–reward interactions on subjective cognitive fatigue.  相似文献   

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The article draws from a personal clinical experience of two suicides, not far removed from each other in time. The first patient was a 33-year-old intellectual suffering from depression with narcissistic traits but no psychotic elements, while the second patient was a 21-year-old student with a manifest psychotic episode behind him and with characteristics of post-psychotic depression at the time of suicide. The two suicides had very different impacts on the therapist: the first left open some “space” for reflection, communication, and working-through, while the second closed such a “space,” leaving only a tiny door to the existential roots of human beings and suffering. The therapist was able to find some “shelter” by talking to supervisors, colleagues, and friends in the first case; in the second, the only possible “shelter” was glimpsed in the philosophy of groundlessness (Ungrund) of the Russian existentialist Nicolai Berdyaev. The personal experiences of the therapist, along with some theoretical interpretations of the after-effects of both suicides, are presented using a psychodynamic and existential–phenomenological understanding of the therapeutic relationship with a psychotic and a non-psychotic patient. The main dilemmas exposed by a patient’s suicide, especially if the patient suffers from psychosis, are difficult to deal with in the usual clinical settings and call for resources beyond it. The authors propose that these can be found in philosophical and theological insights.  相似文献   

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The positive effect of perspective taking on favorable attitudes towards stigmatized individuals and outgroups is well established (Batson et al., 1997). We draw on the ingroup projection model (Mummendey & Wenzel, 1999) to better understand the processes underlying this effect. Based on their egocentric perspective, ingroup and outgroup members have different representations of the superordinate group (perspective divergence) so that the ingroup is perceived as more relatively prototypical of the superordinate group, leading to negative outgroup evaluation. We hypothesize that the positive effect of perspective taking on outgroup attitudes is due to a reduction of relative ingroup prototypicality. Across three studies with different manipulations of perspective taking, we found that participants who were taking the perspective of an outgroup member evaluated the outgroup more positively and were less inclined to perceive their ingroup as more relatively prototypical. The effect of perspective taking on outgroup attitudes was mediated by relative ingroup prototypicality.  相似文献   

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The Report to the 20th National Congress of the Communist Party of China (CPC) is an action plan for the CPC to rally and lead the people to uphold and develop socialism with Chinese characteristics on the new journey of the new era. It gives a rational answer to the philosophical question of “Where is socialism with Chinese characteristics headed on the new journey of the new era” that underlies in the development course of this country, and contains strategic thinking that is forward-looking, big-picture, and pioneering. From a strategic perspective, the Report to the 20th National Congress points out a scientific path for China’s future development, clarifies phased tasks, and defines specific strategic choices, reflecting the forwardlooking strategic vision of planning the cause of socialism with Chinese characteristics. Based on the viewpoint of holistic, developing, and universal connection, it aims to achieve the unity between local and overall interests in strategic deployment, the unity between the present and the future in strategic objectives, and the unity between domestic and international development in strategic vision. It highlights the principles of scientific socialism as upholding the guidance of Marxism, the overall leadership of the CPC, and the people’s decisive role in history, pioneering a new frontier in adapting Marxism to the Chinese context and the needs of the times.  相似文献   

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Frankel's paper is related to issues in the study of multiple personality, as well as to the dilemmas of identification in psychoanalytic training. The main point raised in this discussion is that the generalization that all identification is related to fear is untenable and that a continuum should be recognized between identification with the other in a close relationship as a constructive building block of one's identity and a traumatic identification with the aggressor that results in alienation.  相似文献   

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BackgroundWith increases in life expectancy, it is important to understand the influence of aging on gait, given that this activity is related to the independence of older adults and may help in the development of health strategies that encourage successful aging in all phases of this process.Research questionTo compare gait parameters with usual and fast speeds for independent and autonomous older adults throughout the aging process (60 to 102 years old), and also to identify which of the gait variables are best for identifying differences across the different age groups.MethodsTwo hundred older adults aged between 60 and 102 years were evaluated. The sample was divided into 3 age groups: 60 to 79 years, 80 to 89 years and 90 years and over. The analyzed gait variables were: speed (meters/s), cadence (steps/min), stride time (seconds), step length (centimeters), double support (percentage of the gait cycle), swing (percentage of the gait cycle), step length variability (CoV%) and stride time variability (CoV%).ResultsGroup comparison regarding usual gait and fast gait revealed a significant difference in all gait variables. In addition, it can be seen that variables such as gait speed and step length showed greater effect sizes in intergroup comparison (usual gait: 0.48 and 0.47; fast gait: 0.36 and 0.40; respectively), possibly showing that these variables can better detect the changes observed with increasing age.ConclusionThere are differences in the gait performance of older adults from different age groups for usual and fast gait speeds, which is more evident regarding gait speed and step length variables. We recommend the use of usual gait for the identification of the effects of aging because, besides showing a higher effect size values it is more comfortable and requires less effort from older subjects.  相似文献   

15.
In Ferenczi's idea of identification with an aggressor we can distinguish two sides. One is what we might call an interactive tactic or a social strategy, which is used in upsetting or unbalanced relations of power in order to forestall lack of control, fear, and the like. This is the side that is explored in great detail by Jay Frankel. The other side consists in a intrapsychic change, which flows from severe trauma. The specific effects of the latter are described by Ferenczi as dissociation/fragmentation of the personality, sequestering of the trauma, emotional abandonment, and isolation. Elsewhere, Ferenczi refers to this as a form of psychic self-mutilation.  相似文献   

16.
Theoretically, stimuli can be related to the self as subject (“I”) or object (“ME”) of experience. This event-related brain potential (ERP) study investigated whether listening to personal and possessive pronouns elicits different modes of self-processing regarding time-course and neural sources. Going beyond previous research, first (1PP) and second person (2PP) pronouns were included to determine the specificity of self-processing. Participants listened passively to German pronouns while the electroencephalogram was recorded. Modulation of ERPs revealed a processing advantage for the 2PP personal pronoun “du” (“you”) already in early time windows. Regarding possessive pronouns, N1 amplitudes indicated increased attention orientation to the 1PP pronoun “mein” (“my”), whereas during later time windows, processing of 1PP and 2PP possessive pronouns did not differ but differed from the third person pronoun “sein” (“his”). ERP source imaging suggests that primary sensory brain regions (auditory cortex), the insula and cortical midline structures are differentially involved into these two processing modes. The results support the idea of distinct self-processing modes (“I” and “ME”) and confirm their dynamic nature. Moreover, they demonstrate that on a neural level neither “I” or “ME” are invariantly tied to the first person, in line with the hypothesis that self-processing is relational and context-dependent.  相似文献   

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