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181.
182.
The effects of blocked versus serial feedback (FB) on the learning of a complex motor skill-the production of slalom-type movements on a ski-simulator-were examined. FB was given about force onset, which is considered to be a measure of movement efficiency; relatively late force onsets characterize expert performance. One group of participants (blocked FB; n = 10) received FB about 1 foot per day; for example, for the right foot on Days 1 and 3 and for the left foot on Days 2 and 4. For another group (serial FB; n = 10), the foot about which FB was received was switched on consecutive trials on each of 4 days of practice. Learning was assessed on no-FB trials at the beginning of Days 2, 3, and 4, and on Day 5. Even though there were no differences between groups in force onset, the blocked FB group produced significantly larger movement amplitudes and higher movement frequencies than the serial FB group on the retention test on Day 5. Thus, contrary to the learning of more simple skills (e.g., T. D. Lee & H. Carnahan, 1990), constantly changing the movement component that FB is provided about did not seem to be beneficial for the learning of more complex skills. The findings add to the increasing evidence showing that practice variables that have been shown to enhance the learning of simple skills can actually be detrimental to the learning of complex skills. 相似文献
183.
Jochen Müsseler Monika Nisslein Asher Koriat 《Revue canadienne de psychologie expérimentale》2005,59(3):143-158
The missing-letter effect refers to the phenomenon that letters are more difficult to detect in common function words (such as the) than in content words. Assuming that the missing-letter effect is diagnostic of the extraction of text structure, we exploited a special feature of German--the convention to capitalize the initial letter of nouns. Given the great flexibility of word order in German, it was proposed that this convention might help readers specify the structure of the sentence. Therefore orthographic variations that violate the capitalization rules should disrupt structure extraction and should result in a reduced missing-letter effect. The results indicated that: 1) capitalization of function words eliminated the missing-letter effect, but not at the beginning of a sentence; 2) A missing-letter effect occurred when the capitalization of the first letter was correct, but was followed by typecase alternation, and also when the size of the initial letters was relatively large for function words, but relatively small for content words. The results were discussed with respect to the possible contributions of visual familiarity, structural role, and processing time to the missing-letter effect, taking into account that a capitalized initial letter conveys significant information about the word class for German readers. Thus, the present results indicate that readers take advantage not only of function words but of any other information (here the capitalization of nouns) that helps to extract the structure of a sentence. 相似文献
184.
The enactment effect, the stable finding that memory for action phrases is enhanced in a subject-performed compared to a verbal task (SPT; VT), has repeatedly been demonstrated. The question remains whether the enactment effect has to do with specific characteristics of the SPT-retrieval process. Experiment 1 tested younger and older adults in a within-subjects design with two direct free recall tests. Thorough analyses of the recall process showed that the benefit from self-performing the items becomes apparent early into the retrieval phase for both age groups. Experiment 2 tested the same age groups with a retention phase of 30 minutes. The same general results pattern emerged. The acceleration of the recall process in SPTs is indicative of a heightened accessibility of the actively encoded material, making it less susceptible to forgetting. This property of SPTs must be taken into account when trying to determine the origins of the enactment effect. 相似文献
185.
An increasing number of people have difficulties in limiting private PC/internet use. Especially, MMORP games (massively multiplayer online role-playing games) like ?World of Warcraft“, action games (?Ego-shooters“) like ?Counterstrike“, surfing and chatting are very time-consuming and for some people can reach a pathological level. When real life disappears from a person’s sight and he is almost permanently focusing on the virtual world, we speak about ?pathological PC/internet use“. The great amount of time spent online for non-work or non-school related purposes is one major symptom. In the AHG clinic Münchwies an in-patient program for pathological PC/internet users has been developed. which focuses on group therapy and is based on integrative cognitive behavioural therapy. Difficulties with motivation, compliance, interaction, attachment organisation and self-structuring of those patients are addressed in addition to the core symptoms. A major goal is to centre the patient’s activities and interests back towards real life in order to establish functioning social-interactive relationships again and to reduce the PC/internet use strictly to professional and necessary private activities. 相似文献
186.
ABSTRACT— We examined visual search for color singleton targets, whose shape was discriminated. Critically, we varied the reward priority of singleton colors (correct fast performance was worth more bonus points for red singletons than for green singletons, or vice versa) to test whether event-related potential signatures of visual selection can be affected by distinct reward priorities for different target types, even when every target has to be selected for report. The N2pc component was earlier and larger for high- than for low-reward targets. This influence of reward on the N2pc correlated with the subject-by-subject impact of reward level on efficiency of behavioral performance. Later postselection processing was also affected by reward level. These results demonstrate that visual selection of task-relevant items is rapidly modulated by reward-related priorities, even when every target has to be selected for response. 相似文献
187.
Grzesiak-Feldman M 《Psychological reports》2007,100(1):199-202
The relationships among conspiracy thinking and state and trait anxiety were examined with 118 high school students who were assessed using the Conspiracy Beliefs Scale and the State-Trait Anxiety Inventory. Among boys there was a positive correlation between scores on A-Trait and the conspiracy thinking (r = .39) whereas among girls there was a negative correlation between these scores (r = -.32). 相似文献
188.
Smith AD Gilchrist ID Butler SH Muir K Bone I Reeves I Harvey M 《Brain and cognition》2007,64(2):150-157
Spatially lateralised deficits that typically define the hemispatial neglect syndrome have been shown to co-occur with other non-lateralised deficits of attention, memory, and drawing. However even a simple graphic task involves multiple planning components, including the specification of drawing start position and drawing direction. In order to investigate the influence of these factors in neglect we presented patients with a circle-copying task, and specified the drawing start point. The ability to draw from the instructed location was strongly related to tests that measure constructional abilities, but not related to start point laterality. In contrast, the direction in which patients drew the circle was affected by start point laterality: patients with neglect were less likely to draw in a typical direction when the cue was on the affected side of space and this was strongly related to severity of the neglect. Patients with neglect consistently produced circles that were smaller than the model; however, the scaling was not affected by the laterality of the start point, nor was the proportion of drawings correctly started at the cue. These findings demonstrate the complex relationship between neglect and even the simplest test for the syndrome. 相似文献
189.
Monika A. Dargis Alexandra C. Mattern Joseph P. Newman 《Journal of psychopathology and behavioral assessment》2017,39(2):209-219
Psychopathic individuals display characteristic deficits in processing emotion cues, the abstract meaning of words, and peripheral inhibitory cues, that have been linked to deficits in self-regulation and antisocial behavior. One view, supported by recent research, is that psychopathic individuals have difficulty processing set-incongruent information and that their difficulty may be ameliorated using task manipulations that establish a set-relevant focus of attention. We evaluated this characterization of the psychopathic deficit using a lexical decision (i.e., word recognition) task and priming manipulation that caused target stimuli to be set-congruent or set-incongruent. As predicted, low-anxious (i.e., primary) psychopathic participants displayed a significantly greater priming effect than low anxious non-psychopathic participants. The results highlight the potential value of priming relevant cognitive sets to overcome the costly information processing deficits associated with psychopathy. Treatment efforts emphasizing a balance of attention between primary and peripheral information may prove especially effective for reducing maladaptive behavior in psychopathic individuals. 相似文献
190.
The aim of this study was to examine action memory as a form of episodic memory among school-aged subjects. Most research on action memory has focused on memory changes in adult populations. This study explored the action memory of children over time. A total of 410 school-aged child participants, comprising 201 girls and 208 boys in four age groups (8, 10, 12, and 14), were included in this study. We studied two forms of action encoding, subject-performed tasks (SPTs) and experimenter-performed tasks (EPTs), which were compared with one verbal encoding task as a control condition. At retrieval, we used three memory tests (free recall, cued recall, and recognition). We observed significant differences in memory performance in children aged 8–14 years with respect to free recall and cued recall but not recognition. The largest memory enhancement was observed for the SPTs in the 8–14-year-old participants under all test conditions. Participants performed equally well on the free recall of SPTs and EPTs, whereas they displayed better performances on the cued recall and recognition of SPTs compared to EPTs. The strategic nature of SPTs and the distinction between item-specific information and relational information are discussed. 相似文献