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We investigated the right-left prevalence effect in spatial compatibility tasks by assessing subjects' performance on a two-dimensional task in which both the horizontal and vertical spatial dimensions were task relevant. Two experiments were performed, in which stimulus-response mappings were one-dimensional (Experiment 1) and two-dimensional (Experiment 2). The subjects responded by using either horizontal or vertical effectors to stimuli appearing in four possible locations. With the one-dimensional mapping, the spatial compatibility effect was present only in the dimension relevant to the mapping. With the two-dimensional mapping, the horizontal compatibility effect was always present, whereas the vertical compatibility effect was present only when vertical effectors were used. This pattern of results indicates that horizontal coding takes place with either horizontal or vertical effectors, whereas vertical coding takes place only when vertical effectors are used. 相似文献
544.
This paper presents preliminary results of pre- and post-treatment error analysis from an aphasic patient with anomia. The Interactive Activation (IA) model of word production (Dell, Schwartz, Martin, Saffran, & Gagnon, 1997) is utilized to make predictions about the anticipated changes on a picture naming task and to explain emerging patterns. Error patterns are viewed in light of two putative mechanisms within the IA network, connection strength, and rate of decay. The results suggest that while these mechanisms can successfully account for the magnitude and order of specific errors (e.g., predominance of semantic paraphasias and nonwords followed by formal paraphasias under the conditions of weak connections), the treatment may have influenced the occurrence/absence of some error types. 相似文献
545.
546.
Audio-visual crossmodal interactions in environmental perception: an fMRI investigation 总被引:1,自引:1,他引:0
547.
Preparing for perception and action (I): the role of grouping in the response-cuing paradigm 总被引:3,自引:0,他引:3
Human skilled behavior requires preparatory processes that selectively make sensory and motor systems more efficient for perceiving the upcoming stimulus and performing the correct action. We review the literature concerning these preparatory processes as studied by response-cuing paradigm, and propose a model that accounts for the major findings. According to the Grouping Model, advance or precue information directs a dynamic process of subgroup making-that is, a process of stimulus- and response-set reconfiguration-whereby the internal representation of the task is simplified. The Grouping Model assigns a critical role to the unit of selection, with Gestalt factors and interresponse dependencies mediating the formation and strength of stimulus and response subgroups. In a series of five experiments, we manipulated perceptual and motoric grouping factors, and studied their independent and interactive effects on the pattern of precuing benefits. Generally, the results were consistent with the Grouping Model's account of response-cuing effects. 相似文献
548.
Reconceptualizing Quantitative and Qualitative Methods: A Case Study Dealing with Place as an Exemplar 总被引:1,自引:0,他引:1
Langhout RD 《American journal of community psychology》2003,32(3-4):229-244
A useful framework for understanding methods is to think of them as being on a continuum of holistic and pattern focused to particularistic and specific. This paper argues for this conceptualization rather than thinking of quantitative and qualitative methods as oppositional and potentially contradictory. A case study provides an example of using both quantitative and qualitative methods in a holistic and pattern-focused study, while also attending to the values and goals of community psychology. The substantive research goal is to understand a child's experience of places related to school. Methods include ethnographic long-term participation and observation, interviews, multidimensional scaling, and social network analysis. Most quantitative method variables are generated from study participants; no outside structure is imposed. The quantitative methods extend and inform the qualitative methods, just as the qualitative methods extend and inform the quantitative methods. The quantitative and qualitative methods work reciprocally to extend and inform each other. 相似文献
549.
Borgo F Giovannini L Moro R Semenza C Arcicasa M Zaramella M 《Brain and cognition》2003,53(2):197-201
A large debate has recently focused on the componential nature of the working-memory system (), as evidenced by functional-imaging studies and by using more sophisticated experimental paradigms. The present work aims at further disentangling the role and effects of central executive (CE) and of phonological loop (PL). It is suggested that maintaining active verbal information mostly relates to an intact PL, while the inhibition of interfering information preponderantly involves the CE. To distinguish these effects, two groups of brain damaged patients were administered with an updating task. Frontal lobe patients showed major difficulties in inhibiting interfering information, an ability requiring an involvement of the CE component. In contrast, Alzheimer's dementia patients evidenced a relative impairment in maintaining relevant information, requiring the intervention of the PL. 相似文献
550.
Although her work was greatly respected by scholars from both psychology and biology, such as Wolfgang K?hler, Max Wertheimer, and Karl von Frisch, the life and work of the German sensory physiologist and comparative psychologist Mathilde Hearz (1891-1975) have remained relatively obscure until recently. Her research represented a combination of biological principles fused with a psychological-phenomenological perspective. After a prolific career within a short time span, Hertz's career came to an abrupt end in 1933, despite the intervention efforts of Max Planck. Hertz's personal and professional fates are in many ways representative of the field of comparative psychology in Germany prior to the middle of the 20th century, both of its history and its demise. 相似文献