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31.
Brick Johnstone Michael Pinkowski Janet Farmer Kristofer J. Hagglund 《Journal of clinical psychology in medical settings》1994,1(4):375-386
Outcome following traumatic brain injury (TBI) has been frequently evaluated for adults, although there has been minimal research on adolescents with TBI. It has been argued that TBI sequelae may be more difficult for adolescents to adjust to given developmental changes in physical (puberty), interpersonal (self-concept), and environmental domains (transition to college). In addition, it is commonly acknowledged that moderator variables such as psychiatric history, family functioning, substance use, and sexuality impact functional outcome following TBI, although it is often difficult to objectively evaluate these variables. The current study examined relationships among TBI-related deficits, moderator variables, and academic outcomes for six adolescents transitioning to college. The findings suggest that it may not be appropriate to predict functional outcome based solely on objective neuropsychological results. However, moderator variables appear to have a more direct relationship with outcome, depending on the moderator variable and the individual. 相似文献
32.
Repetition priming is a mnemonic phenomenon that has attracted considerable attention from neuropsychologists and cognitive scientists. In an attempt at elucidating the putative mechanisms of priming, the present review draws on evidence from both domains. The review is restricted to verbal priming of visually presented stimuli—an area that accounts for the majority of empirical studies of priming. A number of theoretical accounts are presented. The interim conclusion is that neither multiple systems nor unitary system-multiple process theories can adequately explain the data on priming, although both contain many valid components. An integrative model is proposed to improve the explanation of the empirical evidence. The central assertion of the proposed model is that repetition priming depends on perceptual processes that can be mapped on specific neural systems. It is postulated that individual differences in perceptual processing ability predict variability in memory performance. It is proposed that data-driven priming of verbal stimuli critically depends on the activity of primary and secondary visual cortices in the right hemisphere, whereas conceptually-driven priming is hypothesized to rely on the activities of higher order tertiary association cortices in language areas and more anterior neocortical areas. 相似文献
33.
Eli Vakil 《Neuropsychology review》1994,4(4):271-278
The development of the field of neuropsychology in Israel is primarily the result of the development of rehabilitation services for traumatic brain-injured patients. The responsibility to care for and help disabled veterans has always been an important motivation for the establishment of rehabilitation services. Israel is probably one of the first countries in the world to develop community-based services specifically designed to address the needs of young patients with severe traumatic brain injury. The fairly extensive therapeutic and community services available today for both military and civilian brain-injured persons in Israel are the result of initiatives and funding by the Israel Ministry of Defense's Department of Rehabilitation. There are two principles that characterize most of the programs in Israel: (1) multidimensional remedial intervention and (2) life-time commitment to provide support. The accessibility of patients in a small country enables professionals to conduct follow-up studies in order to evaluate the long-term effects of brain injury. Current developments in neuropsychology are in three directions. First, formal training programs in neuropsychology are being set up. Second, the involvement of neuropsychologists is being extended beyond the treatment of young patients suffering from traumatic brain injury to include the treatment of different brain pathologies in children and the elderly. Third, sophisticated neuroimaging techniques are being applied to studies in cognitive neuropsychology. 相似文献
34.
Abstract: Do memories change as we acquire new information? Recent research on memory distortion using implicit tests along with research using confidence is reviewed and new studies are presented. Two new studies asked misinformed subjects to provide reasons for their answers. In each study 15% to 27% of subjects said they remembered seeing items they had only read about. In another study subjects were asked to identify the source of misleading items they had seen in slides or read in misleading questions. Subjects were more likely to say they had seen in slides something they read about in the questions than they were to confuse information from two nearly identical sets of slides. Recent work shows that, not only is it possible to distort memory for events, it is possible to implant an entire memory for something that never happened. The evidence is now clear that we can become mentally tricked into making large as well as small changes in the way we recall the past. 相似文献
35.
Detecting a nonevent: Delayed presence-versus-absence discrimination in pigeons 总被引:1,自引:1,他引:0 下载免费PDF全文
Eight pigeons were trained on a delayed presence-versus-absence discrimination paradigm in which a sample stimulus was presented on some trials but not on others. If a sample was presented, then a response to one choice key produced food. If no sample was presented, a response to the other choice key produced food. The basic finding was that performance remained constant and well above 50% correct on no-sample trials as the retention interval increased, whereas performance dropped precipitously (to below 50% correct) on sample trials. In the second phase of the experiment, all of the trials were no-sample trials, and reinforcers were delivered probabilistically for one group of pigeons and according to time-based schedules for the other group. The exact reinforcement probabilities used in Phase 2 were those calculated to be in effect on no-sample trials in Phase 1 (according to a discrete-state model of performance). Subjects did not show exclusive preference for the richer alternative on no-sample trials in the first phase, but those in the probabilistic group developed near-exclusive preference for the richer alternative during the second phase. These data are inconsistent with the predictions of the discrete-state model, but are easily accommodated by an account based on signal detection theory, which also can be applied effectively to discrimination of event duration and the “subjective shortening” effect. 相似文献
36.
Two experiments explored whether the magnitude of the enactment effect in action memory (i. e., higher recall with motor than with non-motor encoding) may depend upon the use of individual or group testing procedures. Nonmotor encoding instructions, requiring the subjects to listen to orally presented action items, were compared to instructions which also required enactment. With encoding treated as a within-subject factor, the observations failed to reveal any significant difference between individual and group testing. With encoding treated as a between-subject factor, the results showed an interaction between test and encoding conditions, such that an enactment effect was found only with group testing. Different support value for auditory cues in group and individual test situations was assumed to account for this difference. In a third experiment the indicative and imperative verb forms were compared. An interaction was observed, showing that in Norwegian, enacted verbs were remembered better when presented in the indicative than in the imperative. No corresponding difference was found under non-enactment conditions. For this finding, a social interaction interpretation was offered. 相似文献
37.
关联性记忆错觉的产生与保持 总被引:5,自引:1,他引:4
两项实验对关联性记忆错觉的产生与保持进行了考察。实验结果表明,关联性记忆错觉接近学过词的回忆水平,但它的产生不随年龄的变化而变化;时间变量对关联性记忆错觉的影响不显著。此外,关联性记忆错觉不同于学过的词,在延迟加快时没有系列位置效应的产生。 相似文献
38.
语义联系类型和强度对预期推理生成的制约作用 总被引:3,自引:2,他引:1
首先采用开放式问卷实验方法,由被试生成日常生活中的事件以及组成这些事件的各种活动和活动的参加者。然后,对这些事件熟悉性、对活动的典型性和可区分性三个维度进行主观评价,形成事件以及每个事件活动序列,并据此编制实验材料。实验主要考察活动的典型性和可区分性对于熟悉性高的事件的预期推理的影响,以及不同工作记忆能力的被试进行事件预期推理时的加工模式。实验结果表明:(1)高工艺记忆能力的被试对事件的预期量小于 相似文献
39.
系列范畴词表时序记忆和项目记忆研究 总被引:3,自引:1,他引:2
该项研究探讨系列范畴词表的时序长时记忆和项目长时记忆,实验设计的系列范畴词表将记忆项目分为词表内范畴相同项和词表间范畴相同项,时序记记测量方法是词表辨认,项目记忆测量方法是自由回忆。实验一发现:2分钟延缓测试词表内范畴相同项时序记忆和项目记忆优于词表间范畴相同项;6分钟以及10分钟延缓测试时序记忆仍是词表内范畴相同项好。实验二发现:以范畴线索提取,两类项目记忆没有显著差异;以词表线索提取,两类项目 相似文献
40.
阅读理解中的预期推理 总被引:17,自引:1,他引:16
从工作记忆能力的个体差异的角度,探讨阅读描述日常生活事件的段落时预期推理过程的资源分配特点,及其与阅读焦点转移的关系。结果表明,(1)预期推理可以维持较长时间。(2)工作记忆能力强的被试进行预期推理的范围较广;而工作记忆能力较弱的被试推理范围较小。(3)工作记忆能力较弱者对每一个项目的激活量较大。(4)对于非常熟悉的事件,预期推理不受焦点转移的影响。 相似文献