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31.
Neil A. Macmillan Charles F. Moschetto Franklin M. Bialostozky Lenore Engel 《Attention, perception & psychophysics》1974,16(2):340-346
Ss judged the size of circles by the methods of magnitude estimation and magnitude production, with or without a standard figure present. The presence of the standard raised the exponent of the power law. The effect was largely independent of the position of the standard in the range of stimuli. It is argued that the standard’s effect was not mediated by a difference in apparent size between perceived and remembered standards, a change in Ss’ response strategies, a decrease in sequential dependencies, or other previously identified bias effects. 相似文献
32.
A cGMP-dependent protein kinase gene, foraging, modifies habituation-like response decrement of the giant fiber escape circuit in Drosophila 总被引:1,自引:0,他引:1 下载免费PDF全文
The Drosophila giant fiber jump-and-flight escape response is a model for genetic analysis of both the physiology and the plasticity of a sensorimotor behavioral pathway. We previously established the electrically induced giant fiber response in intact tethered flies as a model for habituation, a form of nonassociative learning. Here, we show that the rate of stimulus-dependent response decrement of this neural pathway in a habituation protocol is correlated with PKG (cGMP-Dependent Protein Kinase) activity and foraging behavior. We assayed response decrement for natural and mutant rover and sitter alleles of the foraging (for) gene that encodes a Drosophila PKG. Rover larvae and adults, which have higher PKG activities, travel significantly farther while foraging than sitters with lower PKG activities. Response decrement was most rapid in genotypes previously shown to have low PKG activities and sitter-like foraging behavior. We also found differences in spontaneous recovery (the reversal of response decrement during a rest from stimulation) and a dishabituation-like phenomenon (the reversal of response decrement evoked by a novel stimulus). This electrophysiological study in an intact animal preparation provides one of the first direct demonstrations that PKG can affect plasticity in a simple learning paradigm. It increases our understanding of the complex interplay of factors that can modulate the sensitivity of the giant fiber escape response, and it defines a new adult-stage phenotype of the foraging locus. Finally, these results show that behaviorally relevant neural plasticity in an identified circuit can be influenced by a single-locus genetic polymorphism existing in a natural population of Drosophila. 相似文献
33.
El-Khoury MY Dutton MA Goodman LA Engel L Belamaric RJ Murphy M 《Cultural diversity & ethnic minority psychology》2004,10(4):383-393
The primary goal of this study was to identify ethnic differences in battered women's use of health, mental health, and spiritual coping strategies, as well as differences in the perceived helpfulness of each strategy. The authors recruited a sample of 376 African American and Caucasian victims of interpersonal violence from various sites. In comparison with Caucasian women in the sample, African American women were significantly more likely to report using prayer as a coping strategy and significantly less likely to seek help from mental health counselors. The 2 groups did not significantly differ in terms of the extent to which they sought help from clergy or medical professionals. African American women found prayer to be more helpful than did Caucasian women. 相似文献
34.
The development of a hospital-based routine system for off-line scoring and interpreting the MMPI with a small desk-top computer (HP 9830) is described. Main features of the system include the use of optical mark reader (OMR) cards instead of ordinary answer sheets and a software monitoring system allowing operator-independent processing. In terms of flexibility, speed, and economy, the system compares favorably with other computer-based test systems. 相似文献
35.
Stephanie Kelter Rudolf Cohen Dorothea Engel Gudula List Hans Strohner 《Journal of psycholinguistic research》1977,6(4):279-303
Hierarchical and overlapping cluster methods were applied to the sortings of aphasic, nonaphasic brain-damaged, schizophrenic, and normal subjects presented with 30 pictures of animals. The hierarchical structure solutions were most diffuse for the groups of the schizophrenics and the fluent aphasics. The structure for the nonfluent aphasics showed more clarity, but was also deviant from the structures of the normals and the brain-damaged without aphasia. Fluent aphasics but not nonfluent aphasics tended to sort pictures which they could not name into smaller groups. For the nonfluent aphasics, there was a significant correlation between the commonality of the sortings and the severity of aphasic disturbances as measured by the Token Test. The relationship between conceptual disorganization and language impairment seems to be functionally different for fluent and nonfluent aphasics.This research was supported by a research grant from the Deutsche Forschungsgemeinschaft. 相似文献
36.
Emotional and behavioural self-regulation emerges during infancy and toddlerhood and is heavily influenced by parenting. Parents facilitate toddlers' behavioural regulation (e.g., compliance) by using appropriate control with warmth and managing children's emotional reactivity during situational demands. In contrast, power assertive discipline may strain children's regulatory skills, for example by evoking toddlers' negative affect. However, we have more to learn about how discipline relates to toddlers' self-regulation in the moment and whether concurrent displays of parental warmth may moderate these relations. Mother–toddler dyads (N = 74, Mage = 13.30 months) from low-to-middle income Turkish families participated in a 3-min laboratory task, in which toddlers needed to delay playing with an attractive toy. Maternal discipline, warmth, toddler's emotional reactivity, and noncompliance were coded from observations. Results showed that higher power assertive discipline was associated with more frequent emotional reactivity in toddlers whose mothers' showed warmth during the <84% of the task duration. Maternal warmth was negatively associated with child noncompliance, but warmth did not interact with power assertive discipline in relation to noncompliance. Results suggest that observed power assertive discipline is meaningfully related to toddlers' emotional reactivity and higher levels of expressed maternal warmth attenuates these relations. 相似文献
37.
Michael Schilling Jrn R. Sparfeldt Nicolas Becker Marie Engel Julie Levacher Tilman F. P. Sebastian Juliane Schfer Sarah Schwabe Cornelius J. Knig 《International Journal of Selection & Assessment》2020,28(3):264-282
Recent research has highlighted competitive worldviews as a key predictor of faking—the intentional distortion of answers by candidates in the selection context. According to theoretical assumptions, applicants’ abilities, and especially their cognitive abilities, should influence whether faking motivation, triggered by competitive worldviews, can be turned into successful faking behavior. Therefore, we examined the influence of competitive worldviews on faking in personality tests and investigated a possible moderation of this relationship by cognitive abilities in three independent high school and university student samples (N1 = 133, N2 = 137, N3 = 268). Our data showed neither an influence of the two variables nor of their interaction on faking behavior. We discuss possible reasons for these findings and give suggestions for further research. 相似文献
38.
Towards single-trial analysis in cognitive brain research 总被引:1,自引:0,他引:1
39.
School readiness and later achievement 总被引:43,自引:0,他引:43
Duncan GJ Dowsett CJ Claessens A Magnuson K Huston AC Klebanov P Pagani LS Feinstein L Engel M Brooks-Gunn J Sexton H Duckworth K Japel C 《Developmental psychology》2007,43(6):1428-1446
Using 6 longitudinal data sets, the authors estimate links between three key elements of school readiness--school-entry academic, attention, and socioemotional skills--and later school reading and math achievement. In an effort to isolate the effects of these school-entry skills, the authors ensured that most of their regression models control for cognitive, attention, and socioemotional skills measured prior to school entry, as well as a host of family background measures. Across all 6 studies, the strongest predictors of later achievement are school-entry math, reading, and attention skills. A meta-analysis of the results shows that early math skills have the greatest predictive power, followed by reading and then attention skills. By contrast, measures of socioemotional behaviors, including internalizing and externalizing problems and social skills, were generally insignificant predictors of later academic performance, even among children with relatively high levels of problem behavior. Patterns of association were similar for boys and girls and for children from high and low socioeconomic backgrounds. 相似文献
40.