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81.
Richard A. Winett Eileen S. Anderson Laurie L. Desiderato Laura J. Solomon Melissa Perry Jeffrey A. Kelly Kathleen J. Sikkema Roger A. Roffman Ann D. Norman David N. Lombard Tamara N. Lombard 《Applied and Preventive Psychology》1995,4(4):233-245
Social diffusion theory has recently been recognized as a promising approach for large-scale disease prevention and health promotion efforts. This paper describes how principles and tactics from social cognitive theory, operant psychology, social psychology, social marketing, and the overarching stages of change model can be used to further develop the conceptual and strategic (technological) bases of social diffusion theory. Within an integrative framework, we discuss in detail more effective ways to train peer mediators of behavior change as one example of how social diffusion theory can benefit from this conceptual and strategic reformulation. We then further illustrate the use of peer mediators of change in human immunodeficiency virus (HIV) and cancer prevention intervention studies with both interventions training peer mediators to diffuse information, norms, and risk reduction strategies. Although the results of these studies showed reductions in high-risk behaviors across population segments, more closely following the framework discussed in this article should further increase the behavior change potential of future interventions based on social diffusion theory. 相似文献
82.
Cerebral blood flow in 5‐ to 8‐month‐olds: Regional tissue maturity is associated with infant affect
M. Catalina Camacho Lucy S. King Amar Ojha Cheyenne M. Garcia Lucinda M. Sisk Anna C. Cichocki Kathryn L. Humphreys Ian H. Gotlib 《Developmental science》2020,23(5)
Infancy is marked by rapid neural and emotional development. The relation between brain function and emotion in infancy, however, is not well understood. Methods for measuring brain function predominantly rely on the BOLD signal; however, interpretation of the BOLD signal in infancy is challenging because the neuronal‐hemodynamic relation is immature. Regional cerebral blood flow (rCBF) provides a context for the infant BOLD signal and can yield insight into the developmental maturity of brain regions that may support affective behaviors. This study aims to elucidate the relations among rCBF, age, and emotion in infancy. One hundred and seven mothers reported their infants' (infant age M ± SD = 6.14 ± 0.51 months) temperament. A subsample of infants completed MRI scans, 38 of whom produced usable perfusion MRI during natural sleep to quantify rCBF. Mother‐infant dyads completed the repeated Still‐Face Paradigm, from which infant affect reactivity and recovery to stress were quantified. We tested associations of infant age at scan, temperament factor scores, and observed affect reactivity and recovery with voxel‐wise rCBF. Infant age was positively associated with CBF in nearly all voxels, with peaks located in sensory cortices and the ventral prefrontal cortex, supporting the formulation that rCBF is an indicator of tissue maturity. Temperamental Negative Affect and recovery of positive affect following a stressor were positively associated with rCBF in several cortical and subcortical limbic regions, including the orbitofrontal cortex and inferior frontal gyrus. This finding yields insight into the nature of affective neurodevelopment during infancy. Specifically, infants with relatively increased prefrontal cortex maturity may evidence a disposition toward greater negative affect and negative reactivity in their daily lives yet show better recovery of positive affect following a social stressor. 相似文献
83.
Phenomenology and the Cognitive Sciences - The internet provides us with a multitude of ways of interacting with one another. In discussions about how technological innovations impact and shape our... 相似文献
84.
This paper outlines the concept of social citizenship, which was first theorized in the late 1940s alongside the creation of the UK welfare state and concerns citizens' rights to a basic income and standard of living. It suggests that social citizenship—particularly welfare provision—is a useful and important topic for social psychological research, albeit one that has been largely overlooked. We provide an overview of key developments in social citizenship and consider the impact of 30‐plus years of neoliberal governance in Western democracies, which has resulted in ongoing changes to how welfare rights and responsibilities are configured, such as policies that make social citizenship rights contingent on conduct. We outline social scientific work that examines these shifting ideas of citizenship, personhood, welfare, and conditionality and make the case for a critical discursive psychological approach, which we illustrate with a brief empirical example. We suggest that critical discursive social psychology is particularly well‐placed to examine how psychological assumptions are built into both policy and lay discourse and how these can legitimate interventions designed to work on the conduct of the unemployed, such as therapeutic and behavior change initiatives. Finally, we argue that psychology is faced with a choice; while there are opportunities for the discipline to contribute to the design and implementation of such initiatives, to do so requires accepting the basic values of the underpinning neoliberal agenda. Instead, it is vital to place these assumptions under the critical microscope and explore how they work to obscure structural disadvantage. 相似文献
85.
Anderson Ross Warren Narelle Misajon RoseAnne DPsych Stuart Lee 《Applied research in quality of life》2020,15(4):1183-1202
Applied Research in Quality of Life - This article explores the discussions of 21 young Australians (aged 12–25) with vision impairment regarding their lived experiences and what it meant for... 相似文献
86.
87.
Stimulus repetition usually benefits performance. A notable exception is repetition blindness (RB), in which subjects fail to report a repeated stimulus in a rapid serial visual presentation. Theories differ in attributing RB to either perceptual encoding or memory retrieval and to impaired discrimination versus response bias. In the present study, subjects judged whether one or two letters were imbedded in sequences of digits. Unlike previous studies, false guesses of two unrepeated letters were distinguished from false guesses of two repeated letters. When repeated- and unrepeated-letter trials were randomly intermixed (Experiment 1), RB was entirely attributable to response bias. However, when they were separately blocked (Experiments 2 and 3), RB was manifested in discriminability (d'). The results support perceptual-encoding accounts of RB but indicate that effects on discriminability depend on subjects' processing strategies. 相似文献
88.
In constructing the percept of transparency, the visual system must decompose the light intensity at each image location into two components one for the partially transmissivc surface, the other for the underlying surface seen through it. Theories of perceptual transparency have typically assumed that this decomposition is defined quantitatively in terms of the inverse of some physical model (typically, Metelli's 'episcotister model'). In previous work, we demonstrated that the visual system uses Michelson contrast as a critical image variable in assigning transmittance to transparent surfaces not luminance differences as predicted by Metelli's model [F Metelli, 1974 Scientific American 230(4) 90 98]. In this paper, we study the contribution of another variable in determining perceived transmittance, namely, the image blur introduced by the light-scattering properties of translucent surfaces and materials. Experiment 1 demonstrates that increasing the degree of blur in the region of transparency leads to a lowering in perceived transmittance, even if Michelson contrast remains constant in this region. Experiment 2 tests how this addition of blur affects apparent contrast in the absence of perceived transparency. The results demonstrate that, although introducing blur leads to a lowering in apparent contrast, the magnitude of this decrease is relatively small, and not sufficient to explain the decrease in perceived transmittance observed in experiment 1. The visual system thus takes the presence of blur in the region of transparency as an additional image cue in assigning transmittance to partially transmissive surfaces. 相似文献
89.
We studied aspects of clock cognition that might underlie the sensitivity of the CDT in screening for dementia of the Alzheimer type (DAT). Two groups, 15 patients with mild-moderate DAT and 15 controls, were assessed with the CDT and specially designed tests of clock-related cognition. Patients were impaired on the CDT, but they did not differ from controls in copying a clock face or selecting the correct representation of a given time. Patients were worse than controls at distinguishing between clock and nonclock objects, detecting anomalies in clocks, and in setting time irrespective of response format. These findings suggest that semantic-conceptual aspects of clock-related cognition are important in discriminating between patients with DAT and controls. 相似文献
90.
Theoretical Medicine and Bioethics - The practice of paying research subjects for participating inclinical trials has yet to receive an adequate moral analysis.Dickert and Grady argue for a wage... 相似文献