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11.
Prediction Consistency: A Test of the Equivalence Assumption Across Different Indicators of the Same Construct. 下载免费PDF全文
Prominent theoretical constructs such as the Big Five personality factors often inspire the development and use of different inventories. This practice rests on the vital assumption that different indicators equivalently assess the same construct—otherwise, it would often be inappropriate to draw conclusions on the construct level. In comparison to the evidence typically relied on to support this equivalence assumption, we argue that a direct test of prediction consistency will provide further insights: prediction consistency is a necessary condition for the equivalence assumption that indicators from different inventories predict an external criterion to the same extent. Here, we outline guidelines how to design studies to establish prediction consistency and illustrate this approach in an experiment testing the prediction consistency of the Agreeableness indicators from three prominent Big Five inventories. Specifically, we considered prediction consistency with respect to honesty (vs. cheating) as the behavioral criterion for which a specific a priori hypothesis can be derived on theoretical grounds. Results contradicted predictions consistency and thus the equivalence assumption by showing qualitatively different relations to behavioral honesty, thereby also emphasizing that the interchangeability of inventories should generally be subjected to a strict test, rather than assumed. Copyright © 2016 European Association of Personality Psychology 相似文献
12.
Ingo Brigandt 《Erkenntnis》2010,73(3):295-311
The paper works towards an account of explanatory integration in biology, using as a case study explanations of the evolutionary
origin of novelties—a problem requiring the integration of several biological fields and approaches. In contrast to the idea
that fields studying lower level phenomena are always more fundamental in explanations, I argue that the particular combination
of disciplines and theoretical approaches needed to address a complex biological problem and which among them is explanatorily
more fundamental varies with the problem pursued. Solving a complex problem need not require theoretical unification or the
stable synthesis of different biological fields, as items of knowledge from traditional disciplines can be related solely
for the purposes of a specific problem. Apart from the development of genuine interfield theories, successful integration
can be effected by smaller epistemic units (concepts, methods, explanations) being linked. Unification or integration is not
an aim in itself, but needed for the aim of solving a particular scientific problem, where the problem’s nature determines
the kind of intellectual integration required. 相似文献
13.
Ingo Spitczok von Brisinski 《Behavior research methods》1994,26(3):335-336
Tachistoscopic examinations, determinations of reaction times after visual stimuli, and latency measurements of visual evoked potentials require well-defined and often very fast display buildup on the monitor. Display buildup takes at least 14 msec when a VGA board is used in standard video modes. This time can be reduced to 4 msec or less by reprogramming some registers of the display adapter. 相似文献
14.
Hecht K Cornélissen G Fietze I Katinas G Herold M Halberg F 《Perceptual and motor skills》2002,95(1):258-266
This study aimed to describe quantitatively some changes in sleep behavior. During 70 consecutive nights, 28 women and 3 men, 30 to 40 years of age and presumably clinically healthy, recorded the time of each awakening. Time of falling asleep were estimated from markings at 10-min. intervals from the times of lying down to sleep as an indication that the subject had not yet fallen asleep. Sleep duration and an index of effective sleep derived therefrom were analyzed by rhythmometric methods. On a group basis, anticipated components with periods of 1 and 0.5 wk., synchronized with the social schedule, were detected with statistical significance. Until long-term polysomnographic monitoring can readily cover the week automatically rather than only one or a few daily sleep spans, the self-monitoring of sleep behavior, yielding the circaseptan endpoints derived herein, may serve as a cost-effective tool in sleep research. By virtue of their relative simplicity, they could be part of a protocol designed to assess pharmacologic or nonpharmacologic interventions of sleep disturbance aimed at restoring undisturbed sleep. 相似文献
15.
Speech perception deficits in Parkinson's disease: underestimation of time intervals compromises identification of durational phonetic contrasts 总被引:1,自引:0,他引:1
Besides motor, vegetative, and cognitive signs, patients suffering from Parkinson's disease (PD) may show distinct perceptual deficits such as underestimation of time intervals extending across several seconds. Assuming this impairment also to affect the domain of tens of milliseconds, disrupted encoding of the acoustic speech signal with respect to segment durations conveying linguistic information must be expected. To test this hypothesis, 10 PD patients and matched controls performed an identification task using a series of 10 stimuli derived from the utterance "Boten" (/bo:tn/, 'messengers'; produced with nasal plosion) by exclusive manipulation of occlusion length (110-20 ms in steps of 10 ms). Under these conditions, word-medial silence cues the voicing category of the respective stop consonant. Seven PD subjects showed normal identification curves, i.e., categorized the shortest and longest stimuli with high probability each as the minimal pair cognates "Boden" and "Boten," respectively. In contrast, the remaining three patients labeled all items across the complete range of occlusion lengths as "Boden." A subsequent experiment found a horizontal shift of the identification curves toward larger signal durations (> 120 ms) in these three subjects. Bilateral cerebellar degeneration has been found to yield a different response pattern, i.e., near-chance level of performance. Considering recent information-processing models of scalar interval timing, striatal disorders seem to slow down an oscillatory pacemaker, whereas cerebellar dysfunctions may impair comparison of measured durations with stored reference memory traces. 相似文献
16.
17.
Ingo Rentschler 《Visual cognition》2013,21(2):211-237
18.
This study investigates the temporal resolution capacities of the central-auditory system in a subject (NP) suffering from repetition conduction aphasia. More specifically, the patient was asked to detect brief gaps between two stretches of broadband noise (gap detection task) and to evaluate the duration of two biphasic (WN-3) continuous noise elements, starting with white noise (WN) followed by 3 kHz bandpass-filtered noise (duration discrimination task). During the gap detection task, the two portions of each stimulus were either identical (“intra-channel condition”) or differed (“inter-channel condition”) in the spectral characteristics of the leading and trailing acoustic segments. NP did not exhibit any deficits in the intra-channel condition of the gap detection task, indicating intact auditory temporal resolution across intervals of 1–3 ms. By contrast, the inter-channel condition yielded increased threshold values. Based upon the “multiple-looks” model of central-auditory processing, this profile points at a defective integration window operating across a few tens of milliseconds – a temporal range associated with critical features of the acoustic speech signal such as voice onset time and formant transitions. Additionally, NP was found impaired during a duration discrimination task addressing longer integration windows (ca. 150 ms). Concerning speech, this latter time domain approximately corresponds to the duration of stationary segmental units such as fricatives and long vowels. On the basis of our results we suggest, that the patient’s auditory timing deficits in non-speech tasks may account, at least partially, for his impairments in speech processing. 相似文献
19.
This report describes the case of a young man with a large calcification in the right thalamus that was first diagnosed at 9 years of age. Case history reveals specific eating rituals and other obsessive-compulsive personality traits during the patient's childhood and adolescence, fulfilling diagnostic criteria of obsessive-compulsive personality disorder. After a critical life event the patient develops anorexia nervosa. We suggest that our case and further literature provide evidence for an involvement of specific thalamic structures, such as the dorsomedial nucleus, in the development of anorexia nervosa. Furthermore, the treatment of the patient by a combined psychotherapeutic and pharmacotherapeutic approach is described. We focus on the beneficial effect of the atypical antipsychotic olanzapine, which can induce weight gain by an increase of leptin levels. 相似文献
20.
Karl Christoph Klauer Katja Ehrenberg Ingo Wegener 《Journal of experimental social psychology》2003,39(4):332-354
Based on the “Who said what?” paradigm, a new method is proposed for investigating social categorization and non-evaluative stereotype application in crossed categorization. The method is applied in 5 studies that manipulated relative context relevance of crossed age and gender categories. Social categorization is characterized by 2 indices: Relative subgroup memory assesses the amount of subgroup formation represented in memory, and relative category dominance the relative weight of each dimension of categorization. Both indices were affected by context relevance. There was strong evidence for social categorization at the subgroup level, whereas stereotype application followed a simple pattern of category dominance, in which only the context-relevant dimension exerted an effect. The results bear on current models of category-based impression formation and intergroup perception, and on category-activation cum stereotype-inhibition models. 相似文献