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631.
Irwin W. Silverman Arthur P. Rose Diane E. Phillis 《Journal of experimental child psychology》1979,28(1):30-42
The “magic” paradigm was devised to assess conservation of number in young children. Previous results with the paradigm have suggested that children acquire the ability to conserve number by 3 years of age. Because these results indicate a very precocious development of number conservation relative to performance on the classic conservation task, a comparison of these two procedures was made. Several differences which might account for the superior performance with the magic paradigm were noted: The arrays are presented successively rather than simultaneously, the arrays are presented side by side rather than parallel to one another, and the displacement is performed surreptitiously rather than openly. In the present research the magic paradigm was modified in several steps so that these differences between procedures were removed. None of the changes had an impact on the performance of 3-year-olds. It was concluded that insofar as small numbers are concerned, young children treat displacement as irrelevant to number. In regard to the question of whether young children are capable of conserving small numbers, it was concluded that no answer can be given. Basically, the problem is that we lack sufficient information on how young children solve the magic paradigm. 相似文献
632.
Right-handed subjects were tachistoscopically presented three-letter words and nonword permutations in a single visual field for 20 msec. Although the subjects were unable to identify the stimuli at this exposure duration, their lexical decisions were better than chance, and were superior in the left visual field. When the exposure duration was increased, subjects demonstrated superior identification of the words in the right visual field. Results are discussed within an information processing framework. 相似文献
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Five experiments examined the effect of head movement on the localization of sound sources in the equatorial plane. Under most conditions, head movement produces poorer localization for sound sources in the equatorial plane. Only one condition demonstrated an improvement in localization with head movement. The sound source was located toward the side of the head and the source duration was long enough to permit reorientation of the position of the head with re-spect to the sound source. 相似文献
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637.
Depression and the frequency and strength of pleasant events: Exploration of the Staats-Heiby theory
An analysis derived from the paradigmatic behaviorism theory of depression was applied to the Pleasant Events Schedule. The PES combines measurement of frequency and intensity of pleasant events, while paradigmatic behavioral analysis indicates these involve different independent variables. Results showed that different subtypes could be isolated by differentiating these variables, subtypes that would differently predict for depression. The findings have implications for understanding, diagnosing, and treating depression. 相似文献
638.
Rose S 《The Behavioral and brain sciences》1999,22(5):871-85; discussion 885-921
There are many ways of describing and explaining the properties of living systems; causal, functional, and reductive accounts are necessary but no one account has primacy. The history of biology as a discipline has given excessive authority to reductionism, which collapses higher level accounts, such as social or behavioural ones, into molecular ones. Such reductionism becomes crudely ideological when applied to the human condition, with its claims for genes "for" everything from sexual orientation to compulsive shopping. The current enthusiasm for genetics and ultra-Darwinist accounts, with their selfish-gene metaphors for living processes, misunderstand both the phenomena of development and the interactive role that DNA and the fluid genome play in the cellular orchestra. DNA is not a blueprint, and the four dimensions of life (three of space, one of time) cannot be read off from its one-dimensional strand. Both developmental and evolutionary processes are more than merely instructive or selective; the organism constructs itself, a process known as autopoiesis, through a lifeline trajectory. Because organisms are thermodynamically open systems, living processes are homeodynamic, not homeostatic. The self-organising membrane-bound and energy-utilising metabolic web of the cell must have evolved prior to socalled naked replicators. Evolution is constrained by physics, chemistry, and structure; not all change is powered by natural selection, and not all phenotypes are adaptive. Finally, therefore, living processes are radically indeterminate; like all other living organisms, but to an even greater degree, we make our own future, though in circumstances not of our own choosing. 相似文献
639.
Two time windows of anisomycin-induced amnesia for inhibitory avoidance training in rats: protection from amnesia by pretraining but not pre-exposure to the task apparatus 总被引:11,自引:4,他引:7 下载免费PDF全文
Quevedo J Vianna MR Roesler R de-Paris F Izquierdo I Rose SP 《Learning & memory (Cold Spring Harbor, N.Y.)》1999,6(6):600-607
We have studied the effect of training conditions on hippocampal protein synthesis-dependent processes in consolidation of the inhibitory avoidance task. Adult male Wistar rats were trained and tested in a step-down inhibitory avoidance task (0.4 mA foot shock, 24 hr training–test interval). Fifteen minutes before or 0, 3, or 6 hr after training, animals received a 0.8-μl intrahippocampal infusion of the protein-synthesis inhibitor anisomycin (80 μg) or vehicle (PBS, pH 7.4). The infusion of anisomycin impaired retention test performance in animals injected 15 min before and 3 hr after the training session, but not at 0 or 6 h post-training. Pretraining with a low foot shock intensity (0.2 mA) 24 hr before training, prevented the amnestic effect of anisomycin injected at 15 min before or 3 hr after training. However, simple pre-exposure to the inhibitory avoidance apparatus did not alter the amestic effects of anisomycin. The results suggest that hippocampal protein synthesis is critical in two periods, around the time of, and 3 hr after training. A prior weak training session, however, which does not itself alter step-down latencies, is sufficient to prevent the amnestic effect of anisomycin, suggesting that even if not behaviorally detectable, weak training must be sufficient to produce some lasting cellular expression of the experience. 相似文献
640.
Wolfgang Wagner Gerard Duveen Robert Farr Sandra Jovchelovitch Fabio Lorenzi-Cioldi Ivana Marková & Diana Rose 《Asian Journal of Social Psychology》1999,2(1):95-125
This paper gives an overview of social representation theory, definitions of the key terms and of the social processes leading to a representation and to social identity. Six empirical studies are presented and details of their methods and findings are given to illustrate this social psychological approach. These studies are about the ontogenesis of gender, the public sphere in Brazil, madness on British television, images of androgyny in Switzerland, individualism and democracy in post-communist Europe and metaphorical thinking about conception. The methods are ethnography, interviews, focus-groups, content analysis of media, statistical analysis of word associations, questionnaires and experiments. Finally, social representation theory is compared to theories of attitudes, schemata and social cognition. 相似文献