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251.
Lucia M. Vaina Elif M. Sikoglu Sergei Soloviev Marjorie LeMay Salvatore Squatrito Gabriella Pandiani Alan Cowey 《Journal of Neuropsychology》2010,4(2):121-145
We used six psychophysical tasks to measure sensitivity to different types of global motion in 45 healthy adults and in 57 stroke patients who had recovered from the initial results of the stroke, but a large subset of them had enduring deficits on selective visual motion perception tasks. The patients were divided into four groups on the basis of the location of their cortical lesion: occipito-temporal, occipito-parietal, rostro-dorsal parietal, or frontal-prefrontal. The six tasks were: direction discrimination, speed discrimination, motion coherence, motion discontinuity, two-dimensional form-from-motion, and motion coherence – radial. We found both qualitative and quantitative differences among the motion impairments in the four groups: patients with frontal lesions or occipito-temporal lesions were not impaired on any task. The other two groups had substantial impairments, most severe in the group with occipito-parietal damage. We also tested eight healthy control subjects on the same tasks while they were scanned by functional magnetic resonance imaging. The BOLD signal provoked by the different tasks correlated well with the locus of the lesions that led to impairments among the different tasks. The results highlight the advantage of using psychophysical techniques and a variety of visual tasks with neurological patients to tease apart the contribution of different cortical areas to motion processing. 相似文献
252.
Marjorie Rhodes Michael T. Rizzo Emily Foster-Hanson Kelsey Moty Rachel A. Leshin Michelle Wang 《Journal of cognition and development》2020,21(4):477-493
ABSTRACT This article introduces an accessible approach to implementing unmoderated remote research in developmental science – research in which children and families participate in studies remotely and independently, without directly interacting with researchers. Unmoderated remote research has the potential to strengthen developmental science by: (1) facilitating the implementation of studies that are easily replicable, (2) allowing for new approaches to longitudinal studies and studies of parent-child interaction, and (3) including families from more diverse backgrounds and children growing up in more diverse environments in research. We describe an approach we have used to design and implement unmoderated remote research that is accessible to researchers with limited programming expertise, and we describe the resources we have made available on a new website (discoveriesonline.org) to help researchers get started with implementing this approach. We discuss the potential of this method for developmental science and highlight some challenges still to be overcome to harness the power of unmoderated remote research for advancing the field. 相似文献
253.
Marjorie K. Morray 《Reading Psychology》2013,34(1):7-16
ABSTRACT The purpose of the following study was to investigate the extent to which phoneme and grapheme‐phoneme contrasts between English and Spanish are associated with word‐decoding problems in Spanish‐speaking adults who are early readers of English. To test whether such a co‐occurrence exists, word‐decoding exercises were administered to four groups of Spanish‐speaking subjects. The groups were organized on the basis of English‐language proficiency. Significant differences in word‐decoding performance appeared between words containing letter‐sounds found in both Spanish and English and those with letter‐sounds not found in Spanish. 相似文献
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This multiple case study describes the experiences of reentry women in psychology doctoral programs at a major Midwestern research university and illustrates the usefulness of the qualitative case-study method in exploring women's experiences. Semistructured interviews were conducted with four women who were purposefully selected as information-rich participants. Observations and informal interviews were also conducted over a period of up to 2½ years. Eight themes emerged from the data and have been labeled: the decision to return, expectations versus reality, measuring up, frustrations and difficulties, changing family relationships, the necessity of organization, "do it and get on with life," and rewards. This article illustrates that case-study research can be a powerful tool for feminist researchers to document women's experiences. 相似文献
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Morris LeMay 《Journal of counseling and development : JCD》1970,48(10):822-822
259.
Emily Foster-Hanson Kelsey Moty Amanda Cardarelli John Daryl Ocampo Marjorie Rhodes 《Cognitive Science》2020,44(5):e12837
How do people gather samples of evidence to learn about the world? Adults often prefer to sample evidence from diverse sources—for example, choosing to test a robin and a turkey to find out if something is true of birds in general. Children below age 9, however, often do not consider sample diversity, instead treating non-diverse samples (e.g., two robins) and diverse samples as equivalently informative. The current study (N = 247) found that this discontinuity stems from developmental changes in standards for evaluating evidence—younger children chose to learn from samples that best approximate idealized views of what category members are supposed to be like (e.g., the fastest cheetahs), with a gradual shift across age toward samples that cover more within-category variation (e.g., cheetahs of varying speeds). These findings have implications for the relation between conceptual structure and inductive reasoning, and for the mechanisms underlying inductive reasoning more generally. 相似文献
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