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11.
Domestic dogs (Canis familiaris) and the radial arm maze: Spatial memory and serial position effects
M Craig J Rand R Mesch M Shyan-Norwalt J Morton E Flickinger 《Journal of comparative psychology (Washington, D.C. : 1983)》2012,126(3):233-242
The present study investigated spatial memory in domestic dogs (Canis familiaris) through the use of a radial arm maze. The study consisted of a total of three separate experiments. In the first two experiments, the ability of the dogs to successfully remember previously unentered arms was evaluated. The third experiment was similar to the first two, but also examined the nature of the serial position effect. Performance in all three experiments was better than expected solely by random choices. Dogs showed a much better memory for spatial locations presented earlier in a spatial list compared with those presented in the middle. Based on the present results, we suggest that the radial arm maze assesses canine spatial memory and that dogs show a primacy effect. (PsycINFO Database Record (c) 2012 APA, all rights reserved). 相似文献
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Cribbie RA Fiksenbaum L Keselman HJ Wilcox RR 《The British journal of mathematical and statistical psychology》2012,65(1):56-73
The data obtained from one‐way independent groups designs is typically non‐normal in form and rarely equally variable across treatment populations (i.e. population variances are heterogeneous). Consequently, the classical test statistic that is used to assess statistical significance (i.e. the analysis of variance F test) typically provides invalid results (e.g. too many Type I errors, reduced power). For this reason, there has been considerable interest in finding a test statistic that is appropriate under conditions of non‐normality and variance heterogeneity. Previously recommended procedures for analysing such data include the James test, the Welch test applied either to the usual least squares estimators of central tendency and variability, or the Welch test with robust estimators (i.e. trimmed means and Winsorized variances). A new statistic proposed by Krishnamoorthy, Lu, and Mathew, intended to deal with heterogeneous variances, though not non‐normality, uses a parametric bootstrap procedure. In their investigation of the parametric bootstrap test, the authors examined its operating characteristics under limited conditions and did not compare it to the Welch test based on robust estimators. Thus, we investigated how the parametric bootstrap procedure and a modified parametric bootstrap procedure based on trimmed means perform relative to previously recommended procedures when data are non‐normal and heterogeneous. The results indicated that the tests based on trimmed means offer the best Type I error control and power when variances are unequal and at least some of the distribution shapes are non‐normal. 相似文献
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Sarah H. Creem-Regehr Brandon S. Payne Kristina M. Rand Grace Hansen 《Psychonomic bulletin & review》2014,21(2):398-405
How do body representations influence decisions about action? We developed a novel paradigm using the mirror illusion (Holmes, Crozier, & Spence, in Cognitive, Affective, & Behavioral Neuroscience, 4, 193–200, 2004) to examine two ways of evoking body plasticity—extension of body capabilities and visual capture—and its influence on perceived affordances. In two experiments, we manipulated the action capabilities of a seen left hand by lengthening the arm with a rod (Exp. 1) or enlarging the hand with a glove (Exp. 2). The right hand was unaltered physically and was occluded by placement in a mirror box. We induced visual capture through synchronous finger movements of both hands. Right-hand estimates of reaching and of fitting through apertures increased relative to actual capabilities during visual capture, supporting the claim that visual capture can induce the incorporation of an apparent body extension into action decisions. The results suggest that both perceptual and cognitive influences on bodily awareness underlie perceived affordances. 相似文献
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Sebastian Rand 《European Journal of Philosophy》2015,23(1):68-86
In his Logic, Hegel argues that evaluative judgments are comparisons between the reality of an individual object and the standard for that reality found in the object's own concept. Understood in this way, an object is bad (ugly, etc.) insofar as it fails to be what it is according to its concept. In his recent Life and Action, Michael Thompson has suggested that we can understand various kinds of natural defect (i.e., defects in living things) in a similar way, and that if we do, we can helpfully see intellectual and moral badness—irrationality and vice—as themselves varieties of natural defect. In this paper, I argue that Hegel's position on animal individuality denies the claim that irrationality and vice are forms of natural defect. Hegel's account of the individuality proper to the animal organism in the Philosophy of Nature clearly disallows evaluative judgments about animals and thereby establishes a well‐defined conceptual distinction between natural defect and intellectual or ethical—i.e., broadly spiritual or geistliche—defect. Hegel thus provides a way of maintaining the difference between nature and spirit within his broader commitment to a post‐Kantian conception of substantial form. 相似文献
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Kevin S. Masters David S. Shearer Benjamin M. Ogles Rand L. Schleusener 《Journal of clinical psychology in medical settings》2003,10(4):279-288
The primary purpose of this study was to examine whether empirically derived cluster profiles based on scores from the Minnesota Multiphasic Personality Inventory-2 (MMPI-2) predicted outcomes of surgery at 1 year for patients with low-back pain. On the basis of hierarchical cluster analysis of presurgery MMPI-2 scores for 60 patients, three interpretable and significant subgroups were formed. These consisted of a pathological/neurotic type, a double V-code type, and a normal type. The patents in the normal type were significantly more likely to report beneficial outcomes of surgery in terms of disability and pain than those in the other 2 types. These findings extend previous research and suggest (1) low-back surgery candidates are heterogeneous in their psychological profiles, and (2) MMPI-2 profiles are predictive of low-back surgery outcome. Future research should focus on identifying physiological substrates for these distinct profiles and investigating the effectiveness of presurgical psychological interventions based on profile type. 相似文献
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Leonard P. Rand 《Journal of counseling and development : JCD》1968,47(1):34-39
The purpose of this study was to test the currently held theory of homogeneous matching of a student to a college and its effect on college choice satisfaction. Measures of scholastic potential, personality, and interest, and subcultural orientation on 7,257 freshmen enrolled in 28 colleges were related to their expressions of satisfaction with their choice of college. The contention that students most similar or dissimilar to students at their chosen school would be most satisfied or dissatisfied was not supported. The relationship between satisfaction and matching is minimal and quite complex and casts serious doubt on this form of placing students in college. 相似文献
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Recent work using decontextualized economic games suggests that cooperation is a dynamic decision‐making process: Automatic responses typically support cooperation on average, while deliberation leads to increased selfishness. Here, we performed two studies examining how these temporal effects generalize to games with richer social context cues. Study 1 found that time pressure increased cooperation to a similar extent in games played with in‐group members and out‐group members. Study 2 found that time pressure increased cooperation to a similar extent in games described as competitions and games described as collaborations. These results show that previous positive effects of time pressure on cooperation are not unique to neutrally framed games devoid of social context and are not driven by implicit assumptions of shared group membership or cooperative norms. In doing so, our findings provide further insight into the cognitive underpinnings of cooperative decision making. Copyright © 2014 John Wiley & Sons, Ltd. 相似文献
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