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61.
The present paper argues that category learning is both a data-driven and a knowledge-driven process. This is described in a generic model that distinguishes between categorical knowledge, conceptual knowledge, and implicit cognitive theories. The model assumes that each of these knowledge aspects may affect the process of category learning by affecting the way similarities between objects are perceived. This central assumption of the model is tested in two experiments. The first experiment shows that the presence or absence of prior categorical and conceptual knowledge affects the psychological stimulus space by changing the saliency of the stimulus dimensions. The second experiment uses these weights to predict the distribution of errors over the stimuli and the number of trials to criterion in category learning by other participants under the same knowledge conditions. We conclude that prior categorical and conceptual knowledge affect category learning by mediation of similarity perception, and discuss the implications of these results. 相似文献
62.
Marchand A Coutu MF Dupuis G Fleet R Borgeat F Todorov C Mainguy N 《Cognitive behaviour therapy》2008,37(3):146-159
Few randomized controlled trials have included panic disorder patients with moderate to severe agoraphobia. Therefore, this population was studied using pharmacotherapy as well as psychotherapy. At the time of the study, imipramine was widely used as a pharmacological treatment. Also, current practice guidelines for patients with panic disorder find selective serotonin reuptake inhibitors and tricyclic antidepressants roughly comparable in terms of efficacy. Therefore, the main objective of this study is to compare four psychosocial treatments-cognitive and graded in vivo exposure treatments, graded in vivo exposure, cognitive treatment, and supportive therapy-to evaluate the benefits of combining cognitive therapy with exposure in vivo. These treatments were combined with imipramine or placebo for a total of eight experimental conditions. Participants presented moderate to severe agoraphobia. The method involved a randomized, double-blind, placebo-controlled trial with 137 participants who completed a 14-session protocol involving the treatments just mentioned. Measures were taken at baseline and posttreatment and at 3-, 6-, and 12-month follow-up. All treatment conditions were statistically and clinically effective in reducing self-reported panic-agoraphobia symptoms over the 1-year follow-up. No statistical differences were observed between imipramine and placebo conditions. This study found that all treatment modalities helped reduce panic and agoraphobic symptomatology over a 1-year follow-up period. These surprising results support the need to document the relations among the various components of an intervention. This would make it possible to assess the relative efficacy of the treatment components rather than of the intervention as a whole. 相似文献
63.
Andre Almeida Emery Schubert John Smith Joe Wolfe 《Attention, perception & psychophysics》2017,79(7):1892-1896
Brightness is an attribute often used by musicians when describing timbral characteristics. It is related to the spectral distribution of energy, as is sharpness, studied by Zwicker (Psychoacoustics: Facts and Models, 1990). In the current work, subjects adjusted the spectral slope and thus the spectral centroid (SC) of one of a pair of sounds to make it twice as bright as the other, so as to build a perceptual scale. The ratio of SC required to double brightness is a little less than 2 and decreases as the SC of the tones increases. For these tones, the ratio of brightness is statistically different from the ratio of sharpness calculated from published models. 相似文献
64.
Andre Marquis Kathryn Z. Douthit Ari J. Elliot 《Journal of counseling and development : JCD》2011,89(4):397-405
Substantial controversy has surrounded the concept of best practices (BPs) in counseling; in particular, the consequences of deriving practice guidelines from empirically supported treatments (ESTs). Criticisms of EST methodology, assumptions, and findings are summarized, and implications for core counseling values, including multiculturalism, are discussed. The authors further elaborate an inclusive view of BP that can facilitate the use of research to inform and enhance counseling services while rectifying problems associated with methodological and theoretical bias. 相似文献
65.
Andre Archie 《The Southern journal of philosophy》2006,44(3):365-380
This essay discusses Socrates' use of hypothetical choices as an early version of what was to become in the twentieth century the discipline of decision theory as expressed by one of its prominent proponents, F. P. Ramsey. Socrates' use of hypothetical choices and thought experiments in the dialogues is a way of reassuring himself of an interlocutor's philosophical potential. For example, to assess just how far Alcibiades is willing to go to attain his goal of being a great Athenian leader, we employ Ramsey's concept of Mathematical Expectation. Mathematical Expectation operates on the assumption that it is not enough to measure probability; we must also measure our belief to apportion our belief to the probability. In other words, it illustrates how strongly or to what degree a person holds a particular belief. If a person's belief in X lacks enough doubts to cancel the belief out, the probability of his acting on this belief is higher than if his belief in X was plagued by a greater number of doubts. 相似文献
66.
Claudio A. Policastro Andre C.P.L.F. Carvalho Alexandre C.B. Delbem 《Journal of Applied Logic》2006,4(1):26-38
When Case Based Reasoning systems are applied to real-world problems, the retrieved solutions usually require adaptations in order to be used on new contexts. Therefore, case adaptation is a desirable capability. However, case adaptation is still a challenge for this research area. In general, the acquisition of knowledge for case adaptation is harder than the acquisition of cases. This paper explores the automatic learning of adaptation knowledge and explores the use of a hybrid committee approach for automatic case adaptation. 相似文献
67.
Exposure is a highly effective treatment for pathological fear and anxiety, but rarely used in routine care. Issues of practicability and lack of therapists in rural areas are main barriers for the dissemination of exposure. Smartglass devices may enable therapists to guide exposure from their own office via real-time feedback and may thereby increase practicability. The present study explored the technological usability and clinical feasibility of Smartglass-guided exposure in a behavioral approach test in spider-fearful individuals (N = 40).Fearful individuals were asked to start the Smartglass themselves and established a connection to a therapist, who guided the exposure test from afar. Clinical severity of spider fear was assessed via questionnaire. Technological usability was assessed with established measures of usability, user experience, and user acceptance. Exploratory, individual characteristics of exposure were collected (e.g., within-session fear reduction, duration, safety behavior).Overall, fearful individuals (94.9%) and therapists (100%) were able to establish a connection. Usability of Smartglass-guided exposure was evaluated as positive. Within-session fear reduction was large (d = 1.91). Adverse events were minimal. There were, however, some associations between exposure characteristics and usability evaluation (e.g., lower user-friendliness and exposure duration). Two case examples further highlight chances and risks of Smartglass-guided exposure.These findings provide first evidence that Smartglass-guided exposure could be useful in exposure therapy. Smartglass-guided exposure may ultimately help to increase practicability of exposure and increase dissemination, also in rural areas. These findings are promising for future research on the long-term outcome of evidence-based exposure in treatment seeking patients. 相似文献
68.
Wade Mark Plamondon Andre Jenkins Jennifer M. 《Journal of abnormal child psychology》2021,49(6):831-831
Research on Child and Adolescent Psychopathology - A correction to this paper has been published: https://doi.org/10.1007/s10802-021-00812-1 相似文献
69.
Marjaterttu Pajulo Elina Savonlahti Andre Sourander Jorma Piha Hans Helenius 《Infant mental health journal》2001,22(5):529-544
The aim of the study was to explore differences in the content of prenatal mental representations between a risk group (n = 84) and a low‐risk group (n = 296) of pregnant women, enrolled from maternity care centers in southwestern Finland. The method used was semantic differentials of IRMAG (Interview of Maternal Representations During Pregnancy). The risk group was defined by means of questionnaire screens that concerned chemical dependency, depression, difficulties in social environment, and low social support. The ratings on all target subjects, i.e., child, self, partner, self‐as‐mother and own mother‐as‐mother, were significantly more negative in the risk group. The representation profiles of the groups differed: especially the ratings of partner and own mother‐as‐mother were more consistently and strongly negative among the risk mothers. © 2001 Michigan Association for Infant Mental Health. 相似文献
70.