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41.
Haddad JM Rietdyk S Ryu JH Seaman JM Silver TA Kalish JA Hughes CM 《Journal of motor behavior》2011,43(4):345-355
The authors examined postural asymmetries during quiet stance and while holding evenly or unevenly distributed loads. Right-hand dominant subjects preferentially loaded their right lower limb when holding no load or a load evenly distributed in both hands, but no differences in center of pressure (CoP) were observed between the left and right limbs. However, longer CoP displacement was observed under the preferentially loaded limb, which may reflect a functional asymmetry that allows quick movement of one limb in response to a potential perturbation. When a load was held only in the nondominant hand, sample entropy decreased in the left (loaded) limb but increased in the right (unloaded) limb, suggesting the unloaded foot compensated for a loss of control flexibility in the loaded foot. 相似文献
42.
This study uses Bandura's Multidimensional Scales of Perceived Self-Efficacy (MSPSE; Bandura, 1990) and Harter's Self-Perception Profile for Adolescents (SPPA; Harter, 1988) to examine the extent to which self-efficacy and competency-related elements of the self-concept are independent constructs. Factor analysis of data provided by 778 high school students revealed that when measured using domain-general measures such as the MSPSE and SPPA, self-efficacy and competency self-concept do not represent totally separate, distinct constructs. Overlap of dimensions occurs at both the first- and second-order levels of analysis. The practical and theoretical implications of these findings are discussed. 相似文献
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In two experiments, we examined the impact of the degree of match between sequential auditory perceptual organization processes
and the demands of a short-term memory task (memory for order vs. item information). When a spoken sequence of digits was
presented so as to promote its perceptual partitioning into two distinct streams by conveying it in alternating female (F)
and male (M) voices (FMFMFMFM)—thereby disturbing the perception of true temporal order—recall of item order was greatly impaired
(as compared to recall of item identity). Moreover, an order error type consistent with the formation of voice-based streams
was committed more quickly in the alternating-voice condition (Exp. 1). In contrast, when the perceptual organization of the
sequence mapped well onto an optimal two-group serial rehearsal strategy—by presenting the two voices in discrete clusters
(FFFFMMMM)—order, but not item, recall was enhanced (Exp. 2). The results are consistent with the view that the degree of
compatibility between perceptual and deliberate sequencing processes is a key determinant of serial short-term memory performance.
Alternative accounts of talker variability effects in short-term memory, based on the concept of a dedicated phonological
short-term store and a capacity-limited focus of attention, are also reviewed. 相似文献
45.
Gondan M Blurton SP Hughes F Greenlee MW 《Journal of experimental psychology. Human perception and performance》2011,37(6):1887-1897
When participants respond to auditory and visual stimuli, responses to audiovisual stimuli are substantially faster than to unimodal stimuli (redundant signals effect, RSE). In such tasks, the RSE is usually higher than probability summation predicts, suggestive of specific integration mechanisms underlying the RSE. We investigated the role of spatial and selective attention on the RSE in audiovisual redundant signals tasks. In Experiment 1, stimuli were presented either centrally (narrow attentional focus) or at 1 of 3 unpredictable locations (wide focus). The RSE was accurately described by a coactivation model assuming linear superposition of modality-specific activation. Effects of spatial attention were explained by a shift of the evidence criterion. In Experiment 2, stimuli were presented at 3 locations; participants had to respond either to all signals regardless of location (simple response task) or to central stimuli only (selective attention task). The RSE was consistent with task-specific coactivation models; accumulation of evidence, however, differed between the 2 tasks. 相似文献
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Gallagher Christopher M. Hughes Ian M. Keith Melissa G. 《Journal of business and psychology》2022,37(4):675-694
Journal of Business and Psychology - Receiving social support is widely considered a positive workplace phenomenon, but what about the employees from whom the support is being sought? Following... 相似文献
48.
Some researchers have recently argued that humans may be unusual among primates in preferring to use landmark information when reasoning about some kinds of spatial problems. Some have explained this phenomenon by positing that our species’ tendency to prefer landmarks stems from a human-unique trait: language. Here, we test this hypothesis—that preferring to use landmarks to solve such tasks is related to language ability—by exploring landmark use in a spatial task in one non-human primate, the brown capuchin monkey (Cebus apella). We presented our subjects with the rotational displacement task, in which subjects attempt to relocate a reward hidden within an array of hiding locations which are subsequently rotated to a new position. Over several experiments, we varied the availability and the salience of a landmark cue within the array. Specifically, we varied (1) visual access to the array during rotation, (2) the type of landmark, (3) the consistency of the landmark qualities, and (4) the amount of exposure to the landmark. Across Experiments 1 through 4, capuchins did not successfully use landmarks cues, suggesting that non-linguistic primates may not spontaneously use landmarks to solve some spatial problems, as in this case of a small-scale dynamic spatial task. Importantly, we also observed that capuchins demonstrated some capacity to learn to use landmarks in Experiment 4, suggesting that non-linguistic creatures may be able to use some landmarks cues in similar spatial tasks with extensive training. 相似文献
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Marcie?LechtenbergEmail author Sandra?Stith Kyle?Horst Marcos?Mendez James?Minner Maria?Dominguez Vivian?Hughes Eric?McCollum 《Contemporary Family Therapy》2015,37(2):89-100
Evidence suggests that conjoint treatment can be effective for certain violent couples in certain situations (Finkel in Rev Gen Psychol 11:193–207, 2007; LaTaillade et al. in J Cogn Psychother 20:393–410, 2006; Fals-Stewart et al. in J Consult Clin Psych 73:239–248, 2005; Stith et al. in J Marital Fam Ther 29(3):407–426, 2003). However, not as much is known about which aspects of conjoint treatment make a difference, nor if male and female participants experience these elements of treatment differently. Knowing which components of couples’ treatment clients perceive as helpful—and whether their perceptions differ by gender—will allow us to redefine models with an eye toward making them more effective. In this study we used qualitative methods to examine the aspects of a particular couples’ treatment program (Stith and McCollum in Aggress Violent Beh 16(4):312–318, 2011) that clients found useful while also considering the differences between men’s and women’s responses. Fourteen couples, in which the male had been identified as the primary aggressor, were interviewed multiple times to gain their perspectives about components of the program they found helpful and their suggestions for program improvement. Themes are analyzed by gender. Implications for treatment and future research are provided. 相似文献