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951.
As a historical contribution to the current cognition-emotion debate in psychology, this article seeks (a) to bring to the readers' attention the largely ignored tradition of cognitive emotion theory within introspective psychology by reviewing what is probably the most clearly formulated cognitive emotion theory of this period, that proposed by Carl Stumpf, and (b) to point out the relevance of Stumpf's contributions to the psychology of emotions for the contemporary cognition-emotion discussion. It is suggested that Stumpf's version of a cognitive-evaluative theory of emotion deserves the serious attention of contemporary investigators and that several of his objections to noncognitive theories of emotion retain their force against modern versions of these theories.  相似文献   
952.
The basis of our physical world is electrical. The unified Electromagnetic field can appear to us as particles, i.e., matter, at certain densities of wavelengths. A close interrelation therefore exists between matter and electric energy. This knowledge is extensively utilized in technology. Various tools and instruments are electrically powered, utilizing the exceedingly important principle of closed electric circuits. Corresponding closed electric circuits and functions also exist in biology but are more sophisticated and complex. Unfortunately, these aspects are almost unrecognized. The principle of Biologically Closed Electric Circuits (BCEC) and some of their structural and functional effects are described. The Vascular-Interstitial Closed Circuit (VICC) is one specific BCEC system. It functions as a circulatory system in addition to the mechanical circulation. Its efficiency partly depends on its capacity to provide bidirectional transport of ions. The VICC is an in vivo electrophoretic-dielectrophoretic system that is powered by metabolic energy or injury currents. A VICC activation leads to transports of metabolites, new structuring and healing of an injured tissue. Examples are also presented of the process of healing. An abnormal, e.g., prolonged activation of VICC may also induce pathology. Neoplastic formation of cells and tissue can also be healed by the use of artificially applied electrophoresis or an artificially applied electric field as will be described. Our world once developed from electrical energy. This is probably the reason why the BCEC systems make primary differences between nonbiological and biological matter.  相似文献   
953.
Disruption of synaptic activity of a number of cerebral structures (e.g., neostriatum, amygdala, and thalamus) produces marked deficits in retention of instrumentally conditioned behaviors. When animals are given a relatively high number of training trials or high intensities of footshock during learning, however, such disruption is considerably less effective. Since there is a close anatomical and functional relationship between the neostriatum and the substantia nigra, it was of interest to determine whether enhanced training with a high level of footshock would prevent the reported amnesic state induced by injections of GABA antagonists into the latter structure. Rats were trained in a one-trial inhibitory task, using 0.2 or 0.4 mA, and then injected with microgram quantities of picrotoxin or bicuculline into the substantia nigra and posterior region of the zona incerta; retention was measured 24 h later. Only those groups that had been injected into the nigra and trained with 0.2 mA showed amnesia. These results support the hypotheses that (a) the normal activity of a set of structures is essential for the development of memory consolidation and (b) after an enhanced learning experience these structures may participate in memory consolidation, but are not necessary for the occurrence of this process.  相似文献   
954.
中学生科技创造力和课外科技活动关系的测查研究   总被引:3,自引:1,他引:2  
运用创造性能力测验与中学生课外科技活动调查表,对初中预备班,初二及高二年级学生共275名作测查,结果表明:中学生的科技创造力和课外科技活动存在很显著的相关;中学生的科技创造力水平受学校、年级、性别的影响:重点中学优于非重点中学,高二优于初中预备班及初二,男优于女。  相似文献   
955.
规则多边图形的离散度与图形信号认知绩效的关系   总被引:1,自引:0,他引:1  
用实验方法研究规则多边图形的离散度与图形信号认知绩效的关系。实验的自变量是图形的离散度参数,因变量是单位时间图形信号的视觉通道信息传递量。实验的刺激材料是25个离散度为0.3~0.7的规则多边图形。刺激材料的呈现与被试的反应记录都由计算机控制。结果表明:离散度适中(0.5左右)及偏小的图形信号认知绩效较高,离散度从0.5增大到0.6,认知绩效迅速下降,离散度继续增大,认知绩效仍有下降,但趋势平缓。  相似文献   
956.
Multiagent systems: Milestones and new horizons   总被引:1,自引:0,他引:1  
Research in multiagent systems (MAS), or distributed artificial intelligence (DAI), dates back to the late 1970s. Initial work in the area focused on distributed interpretation of sensor data, organizational structuring and generic negotiation protocols. But several recent developments have helped reshape the focus of the field. Like the rest of Al, the field has matured from being largely exploratory in nature to focusing on formal theories of negotiation, distributed reasoning, multiagent learning and communication languages. The field is also maturing to the point of developing its first few fielded applications. The recent widespread interest in the Internet, the World Wide Web, and intelligent agent applications have further fueled the need for techniques and mechanisms by which agents representing users can interact effectively with other agents in open, dynamic environments. The development of several new international workshops and conferences has helped focus research in the area. The field is poised at a critical juncture, with stimulating problems and challenges promising some very exciting developments in the next few years.  相似文献   
957.
用实验方法研究了图形离散度与图形信号传信绩效的关系。实验的自变量为图形的离散度参数,取值范围为0.3-0.7,应变量为通道容量,实验的刺激信号为25个矩形组合图形。结果表明,矩形组合图形的离散度与传信绩效的关系为一种非线性函数关系,离散度适中(0.5左右)的图形信号传信绩效较高。增大增减小图形的离散度均不利于信息的有效传递。  相似文献   
958.
The psychophysical features of the transition from the pure heat to the heat pain range were studied in 25 healthy subjects (mean age 28.8 years). Thirty short heat stimuli from -1.6 degrees C to +1.6 degrees C relative to the pain threshold were applied to the thenar of the left hand with an apparatus containing a Peltier thermode (nine different temperatures at 0.4 degrees C intervals). The subjects rated the sensation intensity on a visual analogue scale. The resulting stimulus/sensation intensity relations could be explained equally well (same goodness of fit) by a model with a power function (PF) and by a model with two linear regression lines (TLR), one for stimulus intensities below and one for those above the pain threshold and intersecting at the pain threshold. The slopes of the TLR model were significantly larger above the pain threshold than below it. The PF model produced exponents between 1.8 and 1.9. We conclude that to describe the transition area, it is sufficient to use simple linear models for both the pure heat and the heat pain ranges.  相似文献   
959.
This research examined the developmental trends in the contribution of evaluations by significant others (mother, father, teacher, and friend) to the self-esteem of adolescents. The sample consisted of 399 adolescents divided into three age groups (mean age: 13.4, 15.5, and 17.5 years). Semantic-differential scales were used. An analysis of variance revealed that adolescents differed in their self-esteem with regard to sex and age: girls evaluated themselves more positively than did boys and younger adolescents more positively than the older ones. The hypothesis that the contribution of significant others becomes less important with increased age was not completely confirmed. The relative contribution of significant others' evaluations differed depending on age and sex of adolescent.  相似文献   
960.
We investigated the nature of the relationship between experiences of transcendental consciousness and psychological health. In Study 1, three groups with different levels of experience in transcendental meditation (TM) and in the TM-Sidhi program (techniques that have been shown to produce experiences of transcendental consciousness) were studied, using the self-investigation method of Hermans (1976). We employed blind interviewers and raters with various attitudes toward TM to minimize the possible impact of a variety of artifacts. Cross-sectionally, experience with TM and the TM-Sidhi program was positively related to a general measure of psychological health (p = .002); longitudinally, the meditating groups improved more than the control group on the psychological health measure (p less than .03). In Study 2, two contrast groups of long-term participants were similar on several confounding variables but differed on physiological indicators of experiences of transcendental consciousness. The groups with the positive physiological indicators showed a trend toward higher scores on the psychological health factor (p = .092), indicating that psychological health may be developed through the systematic cultivation of transcendental meditation and the TM-Sidhi program.  相似文献   
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