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61.
The joint effects of social setting and loud noise on task performance are examined. In a modified version of the Bakan vigilance
task subjects were required to detect a sequence of two identical even digits and to report the two digits preceding the signal.
Two types of acoustic environment were compared: loud noise at 90 dBC and quiet noise at 60 dBC. Two types of social setting
were employed: “pair” where two subjects worked in the same room on similar tasks, and “single” where a subject performed
the task alone. The effects of noise and the presence of another did not interact. Loud noise increased the speed of responses
to signals early in the task. This effect is attributed to noise-induced arousal. There was a higher incidence of recall errors
in pre-signal digits when subjects were in pairs. This effect is attributed to distraction.
This research was part of a series of studies sponsored by the Social Science Research Council (Grant HR 5563 awarded to Dr.
A.J. Chapman and Dr. D.M. Jones). 相似文献
62.
Typically, serial recall performance can be disrupted by the presence of an irrelevant stream of background auditory stimulation, but only if the background stream changes over time (the auditory changing-state effect). It was hypothesized that segmentation of the auditory stream is necessary for changing state to be signified. In Experiment 1, continuous random pitch glides failed to disrupt serial recall, but glides interrupted regularly by silence brought about the usual auditory changing-state effect. In Experiment 2, a physically continuous stream of synthesized vowel sounds was found to have disruptive effects. In Experiment 3, the technique of auditory induction showed that preattentive organization rather than critical features of the sound could account for the disruption by glides. With pitch glides, silence plays a preeminent role in the temporal segmentation of the sound stream, but speech contains corr-elated-time-varying changes in frequency and amplitude that make silent intervals superfluous. 相似文献
63.
Jones DM Marsh JE Hughes RW 《Journal of experimental psychology. Learning, memory, and cognition》2012,38(4):905-922
We show that retrieval from semantic memory is vulnerable even to the mere presence of speech. Irrelevant speech impairs semantic fluency--namely, lexical retrieval cued by a semantic category name--but only if it is meaningful (forward speech compared to reversed speech or words compared to nonwords). Moreover, speech related semantically to the retrieval category is more disruptive than unrelated speech. That phonemic fluency--in which participants are cued with the first letter of words they are to report--was not disrupted by the mere presence of meaningful speech, only by speech in a related phonemic category, suggests that distraction is not mediated by executive processing load. The pattern of sensitivity to different properties of sound as a function of the type of retrieval cue is in line with an interference-by-process approach to auditory distraction. 相似文献
64.
Vachon F Hughes RW Jones DM 《Journal of experimental psychology. Learning, memory, and cognition》2012,38(1):164-177
The role of memory in behavioral distraction by auditory attentional capture was investigated: We examined whether capture is a product of the novelty of the capturing event (i.e., the absence of a recent memory for the event) or its violation of learned expectancies on the basis of a memory for an event structure. Attentional capture-indicated by disruption of a focal visually presented serial recall task-was found when the voice conveying a concurrent irrelevant auditory sequence changed every 5 recall trials (from male to female or vice versa). There was no evidence of attentional capture when the irrelevant sequence was first encountered and hence novel; capture occurred only when an expectation for a particular voice had been learned and then violated. Furthermore, with the increasing predictability of (and hence expectancy for) the voice changes across the experimental session, the capture response diminished only to be reinstated when that session-wide expectation was itself violated by a break in the change-every-5-trials pattern. The results highlight the critical role of learned expectations, as opposed to novelty detection, in behavioral auditory attentional capture. 相似文献
65.
AbstractIn this article, we provide a novel view of mathematics learning disability (MLD) by studying a student with an MLD (Dylan) who had compensated so effectively that she was able to major in statistics. We push back on the dominant deficit model used in studies of MLD, and consider issues of access and compensation from a Vygotskian theoretical frame. Through 8 videotaped interview sessions, we identified that Dylan’s primary difficulties were with mathematical notation and number sense, which resulted in issues accessing standard mathematical forms. Analysis revealed 8 compensatory strategies that Dylan used to address these issues of access. We frame our approach as emancipatory research. Dylan was involved in all phases of the study’s design, implementation, analysis, and dissemination, and is the second author. This work acknowledges that individuals with disabilities have research agendas of their own and have critical insight to share about the lived experience of their disability. 相似文献
66.
Dylan Brian Futter 《British Journal for the History of Philosophy》2013,21(6):1030-1051
Socratic Method in the Euthyphro can be fruitfully analysed as a method of irony interpretation. Socrates' method – the irony of irony interpretation – is to pretend that Euthyphro is an ironist in order to transform him into a self-ironist. To be a self-ironist is to ironize one's knowledge of virtue in order to bring an intuitive and unarticulated awareness of virtue to mind. The exercise of the capacity for self-irony is then a mode of striving for the good. 相似文献
67.
This study investigates the claim that the disruption of comprehension by irrelevant sound is qualitatively different from that of short-term memory for order. Both meaningful and meaningless speech disrupted the comprehensive aspect of the task, but the effect of meaningful speech was significantly greater. Both rehearsal and semantic processing, which are involved in reading comprehension, seem to be susceptible to disruption by irrelevant meaningful speech. The study provides some evidence to suggest that the presence of meaning in the irrelevant sound in creases disruption of performance in cognitive tasks that also call upon processing of meaning. 相似文献
68.
Dylan Dodd 《Australasian journal of philosophy》2013,91(4):665-685
In this paper I argue for a doctrine I call ‘infallibilism’, which I stipulate to mean that If S knows that p, then the epistemic probability of p for S is 1. Some fallibilists will claim that this doctrine should be rejected because it leads to scepticism. Though it's not obvious that infallibilism does lead to scepticism, I argue that we should be willing to accept it even if it does. Infallibilism should be preferred because it has greater explanatory power than fallibilism. In particular, I argue that an infallibilist can easily explain why assertions of ‘p, but possibly not-p’ (where the ‘possibly’ is read as referring to epistemic possibility) is infelicitous in terms of the knowledge rule of assertion. But a fallibilist cannot. Furthermore, an infallibilist can explain the infelicity of utterances of ‘p, but I don't know that p’ and ‘p might be true, but I'm not willing to say that for all I know, p is true’, and why when a speaker thinks p is epistemically possible for her, she will agree (if asked) that for all she knows, p is true. The simplest explanation of these facts entails infallibilism. Fallibilists have tried and failed to explain the infelicity of ‘p, but I don't know that p’, but have not even attempted to explain the last two facts. I close by considering two facts that seem to pose a problem for infallibilism, and argue that they don't. 相似文献
69.
Dylan Molenaar Conor V. Dolan Norman D. Verhelst 《The British journal of mathematical and statistical psychology》2010,63(2):293-317
Maximum likelihood estimation in the one‐factor model is based on the assumption of multivariate normality for the observed data. This general distributional assumption implies three specific assumptions for the parameters in the one‐factor model: the common factor has a normal distribution; the residuals are homoscedastic; and the factor loadings do not vary across the common factor scale. When any of these assumptions is violated, non‐normality arises in the observed data. In this paper, a model is presented based on marginal maximum likelihood to enable explicit tests of these assumptions. In addition, the model is suitable to incorporate the detected violations, to enable statistical modelling of these effects. Two simulation studies are reported in which the viability of the model is investigated. Finally, the model is applied to IQ data to demonstrate its practical utility as a means to investigate ability differentiation. 相似文献
70.
Examining the relationship between use of sexually explicit media and sexual risk behavior in a sample of men who have sex with men in Norway 下载免费PDF全文
Bente Træen Syed W. Noor Gert Martin Hald B. R. Simon Rosser Sonya S. Brady Darin Erickson Dylan L. Galos Jeremy A. Grey Keith J. Horvath Alex Iantaffi Gudruna Kilian J. Michael Wilkerson 《Scandinavian journal of psychology》2015,56(3):290-296
The purpose of this study was to investigate consumption patterns of gay‐oriented sexually explicit media (SEM) among men who have sex with men (MSM) in Norway, with a particular emphasis on a possible relationship between gay SEM consumption and HIV risk behavior. Participants included 529 MSM living in Norway recruited online to complete a SEM consumption and sexual risk survey. Of the 507 participants who responded to the all items measuring exposure to SEM, 19% reported unprotected anal intercourse with a casual partner (UAI) in last 90 days, and 14% reported having had sero‐discordant UAI. Among those with UAI experience, 23% reported receptive anal intercourse (R‐UAI) and 37% reported insertive anal intercourse (I‐UAI). SEM consumption was found to be significantly associated with sexual risk behaviors. Participants with increased consumption of bareback SEM reported higher odds of UAI and I‐UAI after adjusting for other factors using multivariable statistics. MSM who started using SEM at a later age reported lower odds of UAI and I‐UAI than MSM who started earlier. Future research should aim at understanding how MSM develop and maintain SEM preferences and the relationship between developmental and maintenance factors and HIV sexual risk behavior. 相似文献