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141.
A case of acquired phonological dyslexia is described (P.M.). The patient was encouraged to read nonwords by analogy with real words, i.e., by changing phonemes in real words to produce pronounceable nonwords. P.M. was able to perform this task suggesting that he retained some ability to use grapheme-phoneme conversion rules. On the basis of P.M.'s performance an additional connection in Morton's logogen model is postulated. 相似文献
142.
It is argued that conservation judgements are based on a particular combination of logical necessity and empirical belief. The empirical belief is that a given transformation will not alter a particular quantity (Elkind's conservation of identity). The logical aspect is a transitive deductive argument containing an initial equivalence of two quantities and the conservation of identity belief as premises which lead to the conclusion of maintained equivalence (Elkind's conservation of equivalence). In two experiments, it is shown that conservation of identity beliefs can be manipulated in subjects who have long since developed the capacity for transitive deductive inference. Untrained 10 year olds were unaware of how sublimation acts to alter certain quantities over particular transformations of shape. And untrained adults incorrectly believed that both the area and perimeter of a closed figure would be conserved over transformations which elongated the figure. Both groups of subjects could be trained in the correct conservation of identity beliefs and this affected their conservation of equivalence judgements in predicted ways. It is suggested that the locical aspect of conservation is developmentally stable and that the empirical aspect varies widely across problems and individuals because of its dependence on relevant experience. 相似文献
143.
144.
Two studies assessed the effects of interagent, inconsistent discipline on aggression in young boys. One agent responded to hitting behavior with verbal disapproval while another agent responded with verbal approval. In Experiment 1, the frequencies of hitting responses of first- and second-grade boys were examined under four schedules of adult reactions: (1) consistent disapproval; (2) consistent ignoring: (3) consistent approval; and (4) inconsistent discipline (approval from one agent and disapproval from the other). Aggressive responding was least frequent when met with consistent disapproval whereas the frequency of hitting responses in the inconsistent discipline condition was not different than that in the consistent approval and ignore conditions. In Experiment 2, the frequencies of hitting responses were examined under a schedule of consistent disapproval following a brief schedule of either: (1) inconsistent discipline; (2) consistent approval; or (3) consistent ignoring. Hitting behavior during consistent disapproval was greatest following a period of inconsistent discipline and least frequent following a history of consistent ignoring. These findings replicate the results of correlational field studies of the relation between inconsistent discipline and aggression in boys. In addition, these experimental studies demonstrate a causal link and the direction of effects between these variables. 相似文献
145.
146.
In three experiments using delayed-matching tasks with 5-year-old children (one of which also included 7-year-olds) no support was found for the hypothesis that children code for line orientation using a match-mismatch strategy. The hypothesis that errors in discrimination of obliques can be attributed mainly to confusion over the left-right direction of tilt was rejected in a fourth experiment. It was concluded that young children do not spontaneously encode orientation in relation to a matching environmental cue and that there is no evidence that memory for the direction of obliquity is inferior to memory for the degree of obliquity. 相似文献
147.
Peter Mosenthal 《Journal of experimental child psychology》1979,27(1):129-142
Children, ranging in ages from 7.3 to 9.6 years, were identified according to the type of schemata structure they used to recall picture sequence events. These children were then required to recall several written text passages representing four different conditions: (1) theme first paragraphs, (2) theme final paragraphs, (3) paragraphs with no theme but having thematic structure, and (4) paragraphs with no theme and no thematic structure. It was found that the manner and the amount of the child's recall were a function of how the child's schemata structure interacted with a given paragraph structure. The implications of these findings are discussed in terms of the generally unquestioned assumption that only one “ideal” text grammar is needed to describe children's schemata for processing test. 相似文献
148.
Experiment 1 studied the effect of several Pavlovian appetitive conditioning procedures on rats' headpoking into a food tray (goal tracking). The procedures included forward delay conditioning, CS-alone extinction, differential conditioning, and simultaneous compound conditioned inhibition training. In general, the headpoke behaved in all of these treatments much like a Pavlovian CR; however, one could also say that the headpoke behaved like an adventitiously reinforced operant for which the CS was an SD. Experiment 2, therefore, used the differential-nondifferential technique (E. Gamzu & D. R. Williams, Science, 1971, 171, 923–925), and Experiment 3 used an omission technique (F. D. Sheffield, in W. F. Prokasy, Ed., Classical conditioning, New York: Appleton-Century-Crofts, 1965; D. R. Williams & H. Williams, Journal of the Experimental Analysis of Behavior, 1969, 12, 511–520), to try to separate the role of stimulus-reinforcer and response-reinforcer relations in controlling the headpoke. These techniques proved inadequate. The results of Experiment 2 could be given either operant or Pavlovian interpretations. Those of Experiment 3 showed that headpoking is dominated by response-reinforcer, rather than by stimulus-reinforcer, relations when the two compete but forced no conclusion about which dominates when the two act together as in acquisition. Implications for pigeon autoshaping are discussed. 相似文献
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150.
Six adult, human female volunteers participated in a study to determine the consistency of their pattern of sexual arousal to two erotic films over two experimental sessions. Sexual arousal was assessed objectively by means of continuous measurement of temperature changes of the labia minora and subjectively by periodic self-ratings. Each subject developed increases in labial temperature to both film presentations that ranged from about 0.10°C to 1.36°C above basal levels. The amount of temperature change in a subject's labia minora during the first film presentation was significantly correlated with that during the second film, and there was a reasonable degree of consistency across the two sessions with regard to the rate at which the subject's labial temperature subsided towards basal levels after the cessation of erotic stimulation. Labial temperature changes and subjective ratings were also significantly correlated during each of the two film presentations. 相似文献