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901.
James A Wall 《Journal of experimental social psychology》1977,13(5):431-440
This study investigated the effects of a bargaining strategy that rewards the opponent's concessions. The first of four experiments revealed that a negotiator's utilization of this reward strategy resulted in large concessions by and quick agreement with the opponent. The second experiment demonstrated that the large concessions continue after the rewards cease and the third, that two previously rewarded negotiatiors subsequently make large concessions to each other and reach quick agreements. Finally, the fourth experiment added strength to a reinforcement explanation of the results by eliminating an interpretation based upon a reciprocity effect. 相似文献
902.
E L Du Brul 《Brain and language》1977,4(3):365-381
Renewed enthusiasm has produced provocative speculations in recent literature on the origin of speech. The purpose of the present investigation is to expose the adaptive renovations underlying the emergence of a “Vocal Tract” and from this to define its anatomical substrate which governs the biomechanics of speech production. The vocal tract is a double resonator tube coupled in series and composed of oral and pharyngeal cavities. Analysis is made of the crucial structural elements of this complex from detailed dissections in modern man and the study of modern and fossil hominid crania. The study focuses on relations of the skull base, jaw, hyoid bone and the contained tongue, pharynx and valvular devices, calling into question recent reconstructions built on classical Neanderthal skulls. 相似文献
903.
Jerry S. Carlson 《Intelligence》1977,1(4):335-342
The purpose of the study was to investigate the relationships between modes of information integration and performance on a variety of Piagetian concrete operational tasks. The sample consisted of 180 6- to 8-year-olds. Factor analysis of the Piaget tests revealed five interpretable factors: conversation of substance—equality, conservation of substance— inequality, conservation of number, class inclusion, and matrices. Factor analysis of the marker tests for information integration revealed two factors: simultaneous and successive. All the Piaget measures, with the exception of class inclusion, were related to the simultaneous factor. Class inclusion was weakly related to the successive factor. 相似文献
904.
This paper examines our understanding of the decomposition of immediate acts when structuring decision problems. Seven different types of uncertainties are identified, and four of these are shown to be taken explicitly into account in models within the province of decision theory, described in terms of four interlocking systems interfaced with semantic memory (a core act-event system, and systems buffering utilities, probabilities and events, respectively). Requisite decision modeling is shown to require that the remaining three types of uncertainty (procedural uncertainty; how the decision maker will feel about subsequent acts; agency for changing subsequent states of the world) are also resolved. Methods for ‘fixing’ structure are discussed in terms of aiming at a common understanding about the ‘small world’ in which a decision problem is located. Difficulties in resolving uncertainties in doing this are described. An alternative approach, common in studies invoking ‘behavioural decision theory’ is contrasted: imposing structure, assuming common understanding. The latter approach is shown to involve (i) the ‘naturalisation’ of the small world in which the decision problem is located, and (ii) the utilisation of normative models as ‘ideal types’, leading to the use of the ‘bias’ argument in discussing subjects' performance in decision tasks. Using this argument reflexively, the operation of the ‘bias heuristic’ is identified in a survey of published papers referencing this approach to the study of decision making. Effects identified are: availability of tasks, subjects and explanations; representativeness of findings; and anchoring and adjustment of explanations. Implications for practice are discussed throughout the paper. 相似文献
905.
906.
907.
As a parallel to the dual decoding concept for processing of written language we proposed that phonological encoding does not necessarily occur in writing and that the phonemic and graphemic subsystems can be independent on the one-word level. This hypothesis was tested by comparing oral and written performance in a picture-naming task in Broca's and Wernicke's aphasics. In addition, the residual tacit knowledge of the orthographic properties of the names of the pictures was examined with a multiple-choice recognition task. The principal finding is that Broca's aphasics who were better in written than in oral naming showed more graphemically and semantically motivated errors than aphasics who were better in oral than in written naming, the latter producing more phonemically motivated errors. This result supports the dual encoding concept for writing on the singleword level, implying a direct route from the mental lexicon to the graphemic system in parallel with a route mediated by the phonemic system. Multiple-choice recognition was found to be superior to both oral and written performance in both Broca's and Wernicke's aphasics. 相似文献
908.
Harvey S. Levin Robert G. Grossman Mohammad Sarwar Christina A. Meyers 《Brain and language》1981,12(2):360-374
Recovery from acute aphasia after closed head injury was studied in 21 young adults at least 6 months after injury. Three profiles of scores were found using standardized language tests. Persistent expressive and receptive impairment was present in 6 patients who sustained severe diffuse brain injury resulting in global cognitive deficit. Residual expressive impairment, primarily of naming, was associated with mild diffuse brain injury though focal left-hemisphere injury was present in 3 of 6 cases. Patients who recovered to normal levels on all language tests generally had acute neurologic findings consistent with mild diffuse brain injury. Cranial computed tomography at the time of followup frequently disclosed ventricular enlargement. 相似文献
909.
In a sample of 105 children (aged 6 to 12), a stylistic preference for a verbal approach to problem-solving correlated positively with reading ability (independently of age) and degree of right-ear advantage in the report of dichotic stop consonant-vowel syllables (but not with verbal intelligence or hand preference). Verbal strategic preference may: (1) foster the acquisition of reading skill, and (2) bias attention toward input from the right by generating differential left-hemisphere activation. 相似文献
910.
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