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421.
Semantic categorization and event-related potentials 总被引:1,自引:0,他引:1
John Polich 《Brain and language》1985,26(2):304-321
The N400 component of the event-related brain potential (ERP) was examined by presenting subjects with a series of words belonging to the same category and a series of declarative sentences. Half of the word series ended with a semantically unrelated word, while half of the sentences ended with a semantically inappropriate word. In the first experiment, subjects were instructed to read the word series and sentences, while in the second experiment they were instructed to indicate whether the word series or sentences ended appropriately or not with a button-press response. Word series and sentences with semantically incongruous endings produced a robust negative component at 400 msec followed by a positive-going wave for both the reading and decision tasks. When the subjects were required to categorize the word series and sentences endings, the negative component was followed by a robust P3 in both conditions. Analysis of scalp amplitude distributions for each task taken in conjunction with previous findings suggests that the semantically induced N400 component is most likely a "generic" N2. The relationship between the N2, N400, and P3 is discussed. 相似文献
422.
Marvin C. Shaw 《Zygon》1987,22(1):7-19
Abstract. An important issue in the development of the American school of philosophy known as critical naturalism was whether the naturalistic vision implied a humanistic or a theistic interpretation of religion. Is the divine a creativity within nature but more than human effort, or is it the human vision of ideal possibilities and the effort to realize them? This issue is clarified through a study of the concept of the divine developed by the leading naturalist John Dewey in A Common Faith, the misunderstanding of this book by Henry Nelson Wieman, and the discussion of this misunderstanding in the pages of Christian Century. The essay concludes that Wieman's misunderstanding of Dewey is instructive in that it reveals unintended possibilities in Dewey's thought. 相似文献
423.
Elizabeth Hoppes Aylward 《Brain and language》1984,22(2):221-231
It has been proposed that in examining hemispheric dominance in dyslexics, investigators must make a distinction between subtypes of the disorder. Using the Denver Reading and Spelling Test, 72 dyslexics were divided into three groups: dysphonetics, dyseidetics, and nonspecifics. Three measures of hemispheric dominance were administered: a dichotic listening test, a hemiretinal test with linguistic stimuli, and a hemiretinal test with spatial stimuli. Results indicated that the three subgroups of dyslexics did not differ from one another on measures of hemispheric dominance. Dyslexics, taken as a group, tended to show an exaggerated right ear advantage on the dichotic listening test, in comparison with that of controls. It was proposed that the dichotic listening test may be confounded by attentional deficits in the dyslexics. 相似文献
424.
Conditioning of the rabbit nictitating membrane response was found to be inversely related to the number (0, 50, 200, 350) and intensity, (0, 1, 3, 5 mA) of preacquisition UCS exposures and directly related to the interval between preexposure and acquisition (0 or 24 hr). The results were discussed in terms of sensory adaptation, habituation, blocking, and emotional reactivity. 相似文献
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Pliskoff SS 《Journal of the experimental analysis of behavior》1977,28(2):185-187
The history of the stellar magnitude scale is briefly traced from the second century b.c. until the middle of the nineteenth century. It becomes clear that astronomers formulated "Fechner's Law" by about 1850. While Fechner is credited with the grander view of things, the contention is made that the astronomers John Herschel, W. R. Dawes, and N. R. Pogson have not been given their due by historians of psychology. 相似文献
430.
Anatomical and theoretical considerations, as well as experimental findings, have yielded conflicting points of view regarding the abilities of the right hemisphere in man to accomplish cross-modal transfer of information. Auditory—visual cross-modal matching (CMM) and association (CMA) abilities of the left and right hemisphere (LH and RH) were tested, using the Wada intracarotid sodium amytal technique. It was found that the RH performed slightly better on these tasks than the LH. These findings contrast with results of other techniques which indicate that the RH cannot perform CMM and CMA. 相似文献