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121.
This study evaluated whether a concurrent group teaching procedure, in which all students respond simultaneously, could be used for persons with moderate or severe mental retardation. The teaching procedure used was the Task Demonstration Model, a program based on stimulus-control research and the fading techniques of behavioral psychology. Three teachers and three groups of students participated. Results showed that the teachers increased their rates of questions and instructions, positive feedback, and use of functional materials, but they reduced their rate of prompts to almost zero. Students increased their percentage and rate of correct responding as well as their engaged time. In addition, maladaptive responding, for which there were never any direct consequences, decreased from 45% to 10% for 8 of the 14 students. Results are discussed primarily in two areas: (a) changing stimulus control from teacher prompts to critical elements of the items being taught, and (b) reasons for the reduction of maladaptive behavior for 8 of the subjects. 相似文献
122.
The use of an analogy from a semantically distant domain to guide the problemsolving process was investigated. The representation of analogy in memory and processes involved in the use of analogies were discussed theoretically and explored in five experiments. In Experiment I oral protocols were used to examine the processes involved in solving a problem by analogy. In all experiments subjects who first read a story about a military problem and its solution tended to generate analogous solutions to a medical problem (Duncker's “radiation problem”), provided they were given a hint to use the story to help solve the problem. Transfer frequency was reduced when the problem presented in the military story was substantially disanalogous to the radiation problem, even though the solution illustrated in the story corresponded to an effective radiation solution (Experiment II). Subjects in Experiment III tended to generate analogous solutions to the radiation problem after providing their own solutions to the military problem. Subjects were able to retrieve the story from memory and use it to generate an analogous solution, even when the critical story had been memorized in the context of two distractor stories (Experiment IV). However, when no hint to consider the story was given, frequency of analogous solutions decreased markedly. This decrease in transfer occurred when the story analogy was presented in a recall task along with distractor stories (Experiment IV), when it was presented alone, and when it was presented in between two attempts to solve the problem (Experiment V). Component processes and strategic variations in analogical problem solving were discussed. Issues related to noticing analogies and accessing them in memory were also examined, as was the relationship of analogical reasoning to other cognitive tasks. 相似文献
123.
A. Glass 《Psychological research》1967,30(3):250-272
Summary Changes in prevalence of alpha activity (defined as from 8 to 13 c.p.s.) immediately before and during the solution of twenty arithmetical tasks (multiplications and additions in Hard and Easy categories) by 61 normal subjects, with closed eyes, have been measured above a preset threshold voltage over noise level by a percent time alpha computer. An average prevalence of alpha activity of 64.75% before calculation reduced to an average prevalence of 49.01% during calculations. The prevalence of alpha activity during calculation was significantly increased by repetition of similar arithmetical tasks whereas the prevalence of alpha activity before calculation declined from the beginning to the end of the experiment, thus showing an opposite trend. Prevalence of alpha activity was not related to duration of calculations, but, in contrast, low prevalences of alpha activity during calculation were significantly associated with more numerous errors, particularly in additions. It was found that as the information content of a task increased so the prevalence of alpha activity during its solution declined, especially in additions and Easy multiplications. Calculation times and errors were strongly correlated with information content. These results are evaluated in terms of their possible behavioural significance and of the neurophysiological mechanisms underlying attenuation of alpha activity, although the precise theoretical context in which they should be viewed; whether they should be related to habituation, learning, fatigue or solely calculation, may require further clarification.
Zusammenfassung Veränderungen in der Dominanz (Prävalenz) der Alpha-Aktivität (als 8–13 c.p.s. definiert) wurden kurz vor und während der Lösung von 20 arithmetischen Aufgaben (Multiplikation und Addition in Leichten und Schweren Serien) bei 61 normalen Personen, welche die Augen geschlossen hielten, studiert. Die Messung wurde bei einer festgesetzten (preset) Schwellenspannung über dem Geräuschniveau mit einem Alpha-Zeit-Computer ausgeführt. Dabei ergab sich eine Reduzierung der Alpha-Aktivität von 64,75% vor dem Rechnen auf 49,01% während des Rechnens. Die Alpha-Dominanz während des Rechnens wurde statistisch durch Wiederholung von ähnlichen Aufgaben erhöht; im Gegensatz dazu ging die Alpha-Dominanz vor dem Rechnen progressiv vom Anfang bis zum Ende des Experiments zurück.Die Alpha-Dominanz hatte keine Beziehung zur Dauer des Rechnens; andererseits waren niedrige Frequenzen von Alpha-Aktivität während des Rechnens mit Häufigkeit von Fehlern, vor allem beim Addieren, verbunden. Wenn sich der Informations-inhalt einer Aufgabe erhöhte, so verminderte sich die Alpha-Dominanz während ihrer Lösung, vor allem beim Addieren und bei leichten Multiplikationen. Sowohl Rechen-Zeit wie Fehler waren stark mit dem Informations-inhalt korreliert.Diese Ergebnisse werden hinsichtlich ihrer möglichen Beziehungen zum psychischen Verhaltens-Zustand (Behaviour) und zu den mit Abschwächung der Alpha-Aktivität verbundenen neuro-physiologischen Prozessen analysiert. Eine Klärung des präzisen theoretischen Zusammenhanges, in dem die Resultate gesehen werden sollten, sowie ihre Beziehungen zu Gewöhnung, Lernen, Ermüdung oder zum Rechnen allein, erfordert weiteres Studium.相似文献
124.
In contrast to the motive literature, motivational intensity theory predicts that the implicit achievement motive (nAch) should only exert an indirect impact on effort by limiting the impact of task difficulty. To contrast these two views, sixty-eight participants with a low or high nAch performed an easy or difficult arithmetic task. Effort was assessed using cardiac pre-ejection period (PEP). Supporting motivational intensity theory’s view, PEP response was low in both easy-task conditions but stronger in the high-nAch group than in the low-nAch group in the difficult task. These findings suggest that nAch exerts an indirect effect on effort investment by setting the maximally justified effort instead of directly determining the amount of effort that is invested to satisfy the motive. 相似文献
125.
‘Range anxiety’ is considered a barrier to market acceptance of electric vehicles (EVs), but perceptions of inadequate recharging infrastructure and limited battery range may be part of a more complex set of consumer concerns; experiences and practices of existing EV drivers – with reference to wider transport and energy systems – need to be understood in greater detail. Qualitative material from semi-structured interviews [n = 88] is used to formulate a chronological Typology of Electric Vehicle Driving which synthesises drivers’ decisions, actions and dynamic considerations before, during and after a journey. The typology outlines and tabulates spatio-temporal elements specific to driving an EV; describes adaptations and compromises in household routines and travel habits; draws out how or when drivers engage with external digital information sources – i.e. smartphone apps, social media – during journey-making; plots their intervention in behavioural changes; and could inform development of infrastructure, tools or services, policy or interventions to support EV uptake. 相似文献
126.
选取山东省某初中308名学生,采用爱荷华博弈任务,使用“效用-固着”模型对决策包含的动机、认知、反应心理过程进行认知建模分析,探究自尊水平和性别对初中生风险决策表现的影响。结果发现,初中生的风险决策表现不佳,对损失不敏感。在控制年级的影响后,分层回归分析表明:(1)自尊水平和性别对决策的动机过程的影响存在交互作用,男生无论自尊高低对收益都较为关注,女生中高自尊者更加关注收益。(2)决策成绩不存在显著的性别差异,但男生更多选择有着较高损失值的不利选项,而女生更多选择损失频率较低的有利选项。(3)自尊的影响主要体现在动机和认知过程,高自尊水平者在动机过程中更多表现出对损失的规避,在认知过程中更多地考虑维持之前的决策选择。 相似文献
127.
128.
《Quarterly journal of experimental psychology (2006)》2013,66(10):1573-1600
The coding of stimuli and responses is crucial for human behaviour. Here, we focused primarily on the response codes (or response categories). As a method, we applied a combined dual-task and task-switch paradigm with a fixed task-to-hand mapping. Usually, negative effects (i.e., costs) are observed for response category repetitions under task switching. However, in several previous studies it has been proposed that such repetition effects do not occur, if the stimulus categories (e.g., “odd” if digits have to be classified according to their parity feature) are unequivocally mapped to specific responses. Our aim was to test this hypothesis. In the present experiments, we were able to distinguish between three different types of possible response codes. The results show that the participants generally code their responses according to abstract response features (left/right, or index/middle finger). Moreover, the spatial codes were preferred over the finger-type codes even if the instructions stressed the latter. This preference, though, seemed to result from a stimulus–response feature overlap, so that the spatial response categories were primed by the respective stimulus features. If there was no such overlap, the instructions determined which type of response code was involved in response selection and inhibition. 相似文献
129.
《Quarterly journal of experimental psychology (2006)》2013,66(1):84-98
Recoding processes can influence the Implicit Association Test (IAT; Greenwald, McGhee, & Schwartz, 1998) in a way that impedes an unequivocal interpretation of the resulting compatibility effects. We present a modified version of the IAT that aims to eliminate recoding, the IAT-RF (short for “IAT–recoding free”). In the IAT-RF, compatible and incompatible assignments of categories to responses switch randomly between trials within a single experimental block. Abandoning an extended sequence of consistent category–response mappings undermines recoding processes in the IAT-RF. Two experiments reveal that the IAT-RF is capable of assessing compatibility effects between the nominally defined categories of the task and effectively prevents recoding. By enforcing a processing of the stimuli in terms of their task-relevant category membership, the IAT-RF eliminates the confounding of compatibility effects with task switch costs and becomes immune against biased selections of stimuli. 相似文献
130.
《Quarterly journal of experimental psychology (2006)》2013,66(2):370-391
When compatible and incompatible mappings of a location-relevant task are mixed, or a location-relevant task is mixed with a task for which stimulus location is irrelevant, the benefit of the compatible mapping is eliminated for physical locations and enhanced for location words. Two experiments examined the influence of presenting the location information for the mixed conditions in different stimulus modes (physical location or word). Experiment 1 showed that the effects of mixing location-relevant and location-irrelevant tasks on the spatial compatibility and Simon effects are reduced when the location information is presented in different modes for the two tasks. Experiment 2 showed, in contrast, that the mode distinction had little influence on the effects of mixed compatible and incompatible mappings for location-relevant tasks: The compatibility effect was eliminated for physical locations and enhanced for words, as when there is no mode distinction. Thus, when location is relevant for one task and colour for the other, the task-defined associations of locations to responses are mode specific, but when location is relevant for both tasks, the associations are mode independent. 相似文献