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421.
To secure information on which aspects of linguistic functioning might be mediated by the nondominant hemisphere, a test battery assessing sensitivity to narrational and humorous materials was administered to a population of right-hemisphere-damaged patients, as well as relevant control groups of normal, aging, and aphasic individuals. While elementary linguistic functioning was adequate, the right-hemisphere-injured groups exhibited consistent difficulties in respecting the boundaries of a fictive entity, assessing the plausibility of elements within a story or joke, selecting the appropriate punch line for a joke, and integrating elements of a story into a coherent narrative. Certain elements—specifically emotional content and noncanonical facts injected into a narrative—also posed characteristic difficulties for these patients. The results suggest that, in contrast to the other populations, right-hemisphere patients exhibit special difficulties in processing complex linguistic entities and in utilizing the surrounding context as they assess linguistic messages. 相似文献
422.
The present study investigated the comprehension of aphasic subjects as to locative prepositions “in,” “on,” and “under.” Patients had to locate a movable object with reference to a stationary referential object in order to achieve the spatial relations requested under oral instructions. The influence of two types of contextual relations between the objects in each stimulus pair on the subjects' performances was examined. Spatial relations were biased by the conventional knowledge of the most normal relationship between the two elements in everyday life in Experiment 1; in Experiment 2, perceptivomotor constraints constituted the contextual bias. Analyzing the patients' responses in the light of developmental strategies did not lend support to the regression hypothesis. Broca's aphasics were sensitive to the two contextual factors investigated; Wernickes' performances were affected only by the perceptivomotor contextual bias. The results are discussed with reference to earlier studies on the differential syntactical comprehension skills of Broca's and Wernicke's aphasics in sentence-picture matching tasks and production tasks. 相似文献
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425.
Three experiments on conditioned suppression in rats examined the extent to which preexposure to the CS, the US, or uncorrelated presentations of both interfere with future conditioning. Experiment 1 suggested that the interference caused by preexposure to the US alone may result from blocking by contextual cues: signaling the US during preexposure attenuated the interference. Experiment 2 demonstrated that signaling the US by another stimulus did not attenuate the interference caused by exposure to uncorrelated presentations of CS and US. Experiment 3 replicated the results of Experiments 1 and 2 and directly compared the magnitude of these deficits. The results of these experiments imply that the effects of exposure to uncorrelated presentations of CS and US are not reducible to the sum of the effects of exposure to CS or US alone. 相似文献
426.
Nicholas P. Spanos David Mullens Stephen M. Rivers 《Journal of research in personality》1979,13(1):59-70
Hypnotic and task-motivated subjects were given both auditory and visual hallucination suggestions that were either Brief, Long, or provided an imaginary Context. The Long and Context suggestions were equated for length. Task-motivated subjects scored higher than hypnotic subjects on both auditory and visual hallucination suggestions. Suggestion-type (Brief, Long, Context) affected response to the auditory but not the visual suggestion. Hypnotic and task-motivated hallucinators were equally likely to describe their images as being transparent. Theoretical implications are discussed. 相似文献
427.
Dean Delis Nancy S. Foldi Suzanne Hamby Howard Gardner Edgar Zurif 《Brain and language》1979,8(3):350-354
The initiation of the spontaneous gestures of Wernicke's aphasics was analyzed in relation to shifts in semantic content between the syntactic boundaries of main clauses and embedded clauses. Gestures proved more likely to arise at the initial boundaries of embedded clauses when these were semantically discontinuous with the main clause than when these were semantically related to the main clause. Spontaneous gestures may signal underlying shifts in semantic intention, thereby reflecting the difficulties encountered by Wernicke's aphasics in maintaining a coherent stream of thought across syntactic boundaries. 相似文献
428.
G.B. Wells 《Journal of Fluency Disorders》1979,4(2):123-129
The elicited speech of 20 adult male stutterers was analyzed to determine the effect of the number, type, and location of relative clause structures on the frequency of stuttering. The selected structures were identified on the basis of transformational grammar. The findings indicate that the frequency of stuttering increases significantly with an increase in the number of relative clauses included in a matrix sentence structure. The results also indicate that the more severe the stuttering is, the more the stutterer is likely to be affected by this variable. Trends toward more frequent stuttering in the postverbal relative clause and the adjectival form of the relative clause were observed. 相似文献
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N Stemmer 《Journal of the experimental analysis of behavior》1990,54(3):307-315
Skinner's Verbal Behavior (1957) is a comprehensive treatise that deals with most aspects of verbal behavior. However, its treatment of the learning of grammatical behavior has been challenged repeatedly (e.g., Chomsky, 1959). The present paper will attempt to show that the learning of grammar and syntax can be dealt with adequately within a behavior-analytic framework. There is no need to adopt mentalist (or cognitivist) positions or to add mentalist elements to behaviorist theories. 相似文献