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391.
392.
Karin H. James Susan S. Jones Shelley Swain Alfredo Pereira Linda B. Smith 《Developmental science》2014,17(3):338-351
How objects are held determines how they are seen, and may thereby play an important developmental role in building visual object representations. Previous research suggests that toddlers, like adults, show themselves a disproportionate number of planar object views – that is, views in which the objects' axes of elongation are perpendicular or parallel to the line of sight. Here, three experiments address three explanations of this bias: (1) that the locations of interesting features of objects determine how they are held and thus how they are viewed; (2) that ease of holding determines object views; and (3) that there is a visual bias for planar views that exists independently of holding and of interesting surface properties. Children 18 to 24 months of age manually and visually explored novel objects (1) with interesting features centered in planar or ¾ views; (2) positioned inside Plexiglas boxes so that holding biased either planar or non‐planar views; and (3) positioned inside Plexiglas spheres, so that no object properties directly influenced holding. Results indicate a visual bias for planar views that is influenced by interesting surface properties and ease of holding, but that continues to exist even when these factors push for alternative views. 相似文献
393.
The role of working memory (WM) and inhibition in mental set shifting was examined from an individual difference perspective in children aged 5–14 years (N = 117). Using the Hearts and Flowers task the rationale of the present study was to directly test the theoretical assumption that mental set shifiting in childhood primarily builds on WM and inhibitory processes. Theoretical predictions about WM and inhibitory demands in the congruent and incongruent conditions of the Hearts and Flowers task were also considered because these blocks underlie relevant measures of set shifting. The findings show that both WM and inhibition (extracted as factors in confirmatory factor analysis) are important for set shifting but that this general association is driven by the link between these executive functions (EFs) and the goal‐representation aspect (i.e. global switch costs) of shifting, rather than to the actual switch‐implementation process (i.e. local switch costs). In addition, our findings are novel in showing that, despite a substantial correlation between the two EF components, it was the variance specific to WM and inhibition that was important for mental set shifting. Copyright © 2014 John Wiley & Sons, Ltd. 相似文献
394.
Embodiment theories emphasize the role played by sensory and motor processes in psychological states, such as social information processing. Motivated by this idea, we examined how whole-body postural behaviors couple to social affective cues, viz., pictures of smiling and angry faces. We adopted a Simon-like paradigm, whereby healthy female volunteers were asked to select and initiate a forward or backward step on a force plate in response to the gender of the poser (male/female), regardless of emotion. Detailed analysis of the spatiotemporal unfolding of the body center of pressure during the steps revealed that task-irrelevant emotion had no effect on the initiation times of the steps, i.e., there was no evidence of an affective Simon effect. An unexpected finding was that steps were initiated relatively slow in response to female angry faces. This Stroop-like effect suggests that postural behavior is influenced by whether certain stimulus features match or mismatch. 相似文献
395.
Effects of Early Maternal Separation on Subsequent Reproductive and Behavioral Outcomes in Male Rats
Karin J. Bodensteiner Nina Christianson Aldis Siltumens Julie Krzykowski 《The Journal of general psychology》2014,141(3):228-246
To investigate effects of maternal separation on reproductive and behavioral outcomes, male Wistar rats were separated from their mothers daily for 3 hr (maternal separation; MS) or 0 hr (control) from postnatal day (PND) 1 to 14. Timing of puberty, reproductive parameters, hormone levels, and aggressive behaviors in juvenile and adult rats were examined. Contrary to expectations, there was no effect of maternal separation on any measure of aggression. However, maternal separation altered peripubertal testosterone secretion and increased mean day of preputial separation. In addition, adult MS males demonstrated less total sexual behavior. There was no difference in sperm counts or testosterone levels at necropsy on PND 56 or in adulthood, but seminal vesicle weights were increased in adult MS rats. These results suggest that early life stress may influence hypothalamic-pituitary-gonadal axis development in males, at least during peripuberty. 相似文献
396.
Partial Least Squares as applied to models with latent variables, measured indirectly by indicators, is well-known to be inconsistent. The linear compounds of indicators that PLS substitutes for the latent variables do not obey the equations that the latter satisfy. We propose simple, non-iterative corrections leading to consistent and asymptotically normal (CAN)-estimators for the loadings and for the correlations between the latent variables. Moreover, we show how to obtain CAN-estimators for the parameters of structural recursive systems of equations, containing linear and interaction terms, without the need to specify a particular joint distribution. If quadratic and higher order terms are included, the approach will produce CAN-estimators as well when predictor variables and error terms are jointly normal. We compare the adjusted PLS, denoted by PLSc, with Latent Moderated Structural Equations (LMS), using Monte Carlo studies and an empirical application. 相似文献
397.
Daily hassles,their antecedents and outcomes among professional first responders: A systematic literature review 下载免费PDF全文
Gerry Larsson Anna Karin Berglund Alicia Ohlsson 《Scandinavian journal of psychology》2016,57(4):359-367
Occupational groups such as firefighters, military officers, paramedics and police officers are exposed to a combination of acute, severe and accumulated everyday stress. Drawing on the daily hassles perspective on stress, the aim was to synthesize existing research on daily hassles in professional first responder settings into a theoretical model. A systematic mixed studies review with an integrated design was undertaken. The selection process resulted in 40 articles meeting the inclusion criteria. The selected papers represented two literature reviews, one qualitative study, eight longitudinal studies and 29 cross‐sectional studies. Five superior categories emerged in the analysis: Individual antecedent and continuously framing factors, Environmental antecedent and continuously framing factors, Appraisal and coping processes, Daily hassles and Outcome. Suggestions for future research are presented. 相似文献
398.
Motivation and Emotion - Identifying causes of healthy behaviors is important for harnessing health benefits. A growing body of experience sampling research suggests that positive emotion may drive... 相似文献
399.
Kayrouz Rony Karin Eyal Ghanem Carawan Choudhury Nafisa Malas Ahmad 《Journal of child and family studies》2022,31(10):2837-2848
Journal of Child and Family Studies - This study explores the risk of developing clinically significant social, emotional, and behavioural problems among Muslim adolescents living in Australia... 相似文献
400.
Bizzi Fabiola Charpentier-Mora Simone Cavanna Donatella Borelli Jessica L. Ensink Karin 《Journal of child and family studies》2022,31(1):114-127
Journal of Child and Family Studies - Beginning with Ensink’s seminal study (2015), the field entered a new era in which we were able to measure mentalizing in school-aged children. The goal... 相似文献