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51.
Luke Clark Rui Liu Rebecca McKavanagh Alice Garrett Barnaby D. Dunn Michael R. F. Aitken 《决策行为杂志》2013,26(5):442-450
Gambling near‐misses are non‐rewarded events that resemble a winning configuration. Past research using slot machines has shown that moderate rates of near‐misses increase gambling persistence, but the mechanisms supporting this persistence are unclear. One hypothesis is that near‐misses are mistakenly interpreted as signals of skill acquisition, supporting learning and fuelling the ‘illusion of control’. A slot machine simulation was administered to 60 volunteers, with ratings of the perceived chances of winning, pleasure and motivation to play following particular outcomes. Psychophysiological measures (electrodermal activity and heart rate) were taken, and gambling persistence was measured after 30 trials. Near‐misses were similar to full‐miss outcomes in that they were regarded as unpleasant. However, near‐misses were akin to win outcomes in that they increased motivations to play and electrodermal activity. Learning was evidenced by the expectancy of winning increasing following wins and decreasing after losses. Although there was no overall change in expectancy of winning after near‐misses across all participants, those subjects reporting a greater increase in the expectancy of winning following a near‐miss showed more persistent play, consistent with the learning hypothesis. Greater heart rate acceleration following near‐misses was also associated with persistence. We also observed differential effects of near‐misses where the reel stopped either side of the winning position (‘payline’): motivational effects were restricted to near‐misses stopping before the payline, whereas near‐misses that stopped after the payline were primarily aversive. The payline effects are not predicted by the learning hypothesis and may indicate an affective component to near‐misses, possibly linked to counterfactual processing. Copyright © 2012 John Wiley & Sons, Ltd. 相似文献
52.
Pitch is derived by the auditory system through complex spectrotemporal processing. Pitch extraction is thought to depend on both spectral cues arising from lower harmonics that are resolved by cochlear filters in the inner ear, and on temporal cues arising from the pattern of action potentials contained in the cochlear output. Adults are capable of extracting pitch in the absence of robust spectral cues, taking advantage of the temporal cues that remain. However, recent behavioral evidence suggests that infants have difficulty discriminating between stimuli with different pitches when resolvable spectral cues are absent. In the current experiments, we used the mismatch negativity (MMN) component of the event related potential derived from electroencephalographic (EEG) recordings to examine a cortical representation of pitch discrimination for iterated rippled noise (IRN) stimuli in 4- and 8-month-old infants. IRN stimuli are pitch-evoking sounds generated by repeatedly adding a segment of white noise to itself at a constant delay. We created IRN stimuli (delays of 5 and 6 ms creating pitch percepts of 200 and 167 Hz) and high-pass filtered them to remove all resolvable spectral pitch cues. In experiment 1, we did not find EEG evidence that infants could detect the change in the pitch of these IRN stimuli. However, in Experiment 2, after a brief period of pitch-priming during which we added a sine wave component to the IRN stimulus at its perceived pitch, infants did show significant MMN in response to pitch changes in the IRN stimuli with sine waves removed. This suggests that (1) infants can use temporal cues to process pitch, although such processing is not mature and (2) that a short amount of pitch-priming experience can alter pitch representations in auditory cortex during infancy. 相似文献
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54.
Charissa Andreotti Jennifer E. Thigpen Madeleine J. Dunn Kelly Watson Jennifer Potts Michelle M. Reising 《Anxiety, stress, and coping》2013,26(1):20-35
Abstract The current study examined the relations of measures of cognitive reappraisal and secondary control coping with working memory abilities, positive and negative affect, and symptoms of anxiety and depression in young adults (N=124). Results indicate significant relations between working memory abilities and reports of secondary control coping and between reports of secondary control coping and cognitive reappraisal. Associations were also found between measures of secondary control coping and cognitive reappraisal and positive and negative affect and symptoms of depression and anxiety. Further, the findings suggest that reports of cognitive reappraisal may be more strongly predictive of positive affect whereas secondary control coping may be more strongly predictive of negative affect and symptoms of depression and anxiety. Overall, the results suggest that current measures of secondary control coping and cognitive reappraisal capture related but distinct constructs and suggest that the assessment of working memory may be more strongly related to secondary control coping in predicting individual differences in distress. 相似文献
55.
We report data from two left hemisphere stroke patients with moderate‐to‐severe ideomotor apraxia who exhibited deficits in positioning their hands to use ‘conflict’ objects (objects grasped and used with different hand postures) relative to controls and patients with mild apraxia. These novel data support the claim that actions to common objects are subject to interference between multiple responses, and suggest that errors in apraxia may be attributed to deficient resolution of competition between appropriate and inappropriate actions. 相似文献
56.
James M. Flournoy Steven Prentice‐Dunn Mark R. Klinger 《Journal of applied social psychology》2002,32(2):406-423
Inman and Baron (1996) found that African Americans and Whites possess prototypes for racist behavior that involve Whites oppressing African Americans. However, prototypical content may be more detailed and specific for African Americans because of differing cultural experiences. In the present experiment, undergraduates read stories about interpersonal encounters representing prototypical and nonprototypical situations. Actor race ambiguity was manipulated by the presence or absence of photographs. As expected, Whites tended to make equal ratings of prejudiced behavior for prototypical and nonprototypical situations. However, African Americans perceived more prejudice in prototypical vignettes than in nonprototypical vignettes. They also perceived stronger prejudicial displays and more dispositional motivation for targets in prototypical vignettes. The results suggest that African Americans have heightened sensitivity to prejudice in specific situations, a factor that may contribute to racial confrontations and misunderstandings. 相似文献
57.
Psychological constructs can only be measured indirectly in terms overt behavior, often by means of changes in the level of performance on tasks they are presumed to affect. However, the exact relationship between constructs and the tasks they are presumed to affect is usually not known, which often requires non-essential auxiliary assumptions to be added to a psychological model to allow it to contact the data. Signed difference analysis is a method of deriving testable consequences from psychological models under the general assumption that the relationship between task performance and the constructs or combinations of constructs postulated by the model is at least monotonic. The predictions derived using signed difference analysis do not depend upon estimation of either model parameters or explicit functional relationships. In the present paper, the mathematical theory of signed difference analysis is presented and applied to illustrative problems drawn from research in memory, spatial attention, and reading. The relationships between signed difference analysis and related inferential procedures such as conjoint measurement, state-trace analysis, and double dissociation are discussed. 相似文献
58.
Morris J. Paulson Anne B. Savino Anne B. Chaleff R. Wyman Sanders Florence Frisch Richard Dunn 《Suicide & life-threatening behavior》1974,4(1):18-31
ABSTRACT: This paper reports the demographic findings and the experience of a three-year, multidisciplinary group psychotherapy program, with 31 child-abusing families. No predictive demographic characteristics were identified. The abuse of children ranged from mild bruising to severe brain damage and multiple fractures. Group therapy as an intervention procedure had its successes and failures. The dynamics of male-female co-therapists, the peer group sharing, and the capacity to ultimately verbalize inadequacies in the parenting role were crucial factors in therapy. As an experiential encounter the study gives a poignant insight into the personal and family pathology of parents who abuse their children. 相似文献
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Knowledge, Technology &; Policy - 相似文献
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