共查询到19条相似文献,搜索用时 250 毫秒
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不同认知作业年老化特点的比较研究 总被引:3,自引:1,他引:2
本工作应用自行设计的软件程序和微机人机对话方式,完成六项认知作业的年老化特点的比较研究,被试506人,46—75岁。研究结果表明:1)“心算”和“符号数字”两项作业完成速度随年老迅速减慢,但测验成绩随年老缓慢降低,速度变化是该两项作业年老化过程的主要特点;2)“数字鉴别”和“计数”两项作业完成速度随年老减慢较缓;3)“双位数字顺序回忆”和“无意义图形再认”两项作业测验成绩随年老下降迅速,但前者更为明显;4)速度和成绩两项指标的个体差异均随年老有增大趋向。 相似文献
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被试操作任务(SPT)编码后的记忆成绩通常优于语词任务(VT)编码后的记忆成绩,此类现象被称为SPT效应。本研究考察动作与物体之间已有的联结程度对联结再认的SPT效应的影响。学习阶段,被试使用SPT与VT编码识记日常动作短语(动作与物体配对,如“切西瓜”)和怪异动作短语(如“种锤子”);测试阶段,要求被试区分“旧”、“重组合”和“新”短语。结果发现,当识记日常动作短语时,SPT条件的联结再认成绩显著高于VT条件的成绩,但是,当识记怪异动作短语时,SPT条件与VT条件的联结再认成绩无显著差异。此外,仅在VT而非SPT条件,怪异动作短语的联结再认成绩显著高于日常动作短语的成绩。研究结果表明,动作操作和刺激材料的怪异性均可促进动作与物体的联结记忆,但是两者不能对联结记忆产生叠加的促进作用。 相似文献
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青年人和老年人的元记忆与记忆能力关系的比较研究 总被引:2,自引:0,他引:2
采用自编“元记忆简短问卷”和“成人元记忆问卷”,对90例被试(分为青年、老年和老老年组)进行元记忆及其与记忆关系的比较研究。结果表明:(1)预测记词对数和记图数随增龄而减少,年龄差异明显。评估准确性未显示年龄差异。训练后,预测成绩明显提高,但评估准确性未见提高。测后自评与预测情况相似,但其准确性高于预测,元记忆可能通过记忆过程而有提高;(2)自信程度和使用方法数均随增龄而减少,可能这是影响记忆成绩的重要因素;(3)联想学习和图象自由回忆成绩均与“元记忆简短问卷”和“成人元记忆问卷”的各项自评有不同程度的相关,表明元记忆与记忆关系密切。 相似文献
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通过调查得到个体对日常情境中前瞻记忆失败的6种归因,在此基础上,编制12个日常生活中前瞻记忆失败的情境故事,让124名大学生被试进行归因,以确定事件重要性、人际关系和过错者身份对日常情境中前瞻记忆失败归因的影响。结果表明,被试对不重要事件的前瞻记忆失败归因为“主观无意”,重要事件归因为“主观故意”;在对事件后果和过错者人品判断时具有“对己严格”和“对人宽容”的归因特点;对包含亲子关系的前瞻记忆失败者进行责任较轻的归因与后果判断,在重要事件情境中,对包含朋友关系的前瞻记忆失败者进行责任较重的归因与后果判断。 相似文献
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该研究采用实验室实验法,被试自我报告分析及调查访问法,以三个年龄(10岁、14岁、18岁)组学生及专项运动员为实验对象,揭示短时动作记忆的容量和精确度及其与动作学习指数的关系。结果表明:(1)被试的短时动作记忆容量为“5±2”,短时动作记忆的容量与动作学习的练习次数相联系;短时动作记忆的精确度与第一次动作练习的准确度相联系。(2)短时动作记忆的容量有随年龄增长而递增的趋势。(3)运动员与非运动员被试对于同类动作学习的练习次数存在显著性差异。 相似文献
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短时动作记忆的容量和精确度与动作学习的关系 总被引:3,自引:0,他引:3
该研究采用实验室实验法,被试自我报告分析及调查访问法,以三个年龄(10岁、14岁、18岁)组学生及专项运动员为实验对象,揭示短时动作记忆的容量和精确度及其与动作学习指数的关系。结果表明:(1)被试的短时动作记忆容量为“5±2”,短时动作记忆的容量与动作学习的练习次数相联系;短时动作记忆的精确度与第一次动作练习的准确度相联系。(2)短时动作记忆的容量有随年龄增长而递增的趋势。(3)运动员与非运动员被试对于同类动作学习的练习次数存在显著性差异。 相似文献
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《Quarterly journal of experimental psychology (2006)》2013,66(4):646-652
Previous research has identified “the age–prospective memory paradox”—that adult ageing results in reliably poorer performance on laboratory-based tasks of prospective memory (PM), but improved performance on such tasks carried out in real-life settings. We hypothesized that even in their everyday environment, older adults might be worse at PM tasks that are triggered during an experimenter-generated ongoing activity. The present study used a task that captured the key features of the classic laboratory paradigm, but which was completed in a setting that met key criteria to be considered naturalistic. In their everyday setting, participants' PM was assessed, with the cue to remember occurring either (a) during their day-to-day activities, or (b) during an experimenter-generated ongoing task. The results confirmed previous naturalistic findings, in showing that older adults (n = 28) exhibited better PM than their younger counterparts (n = 65) when prompted during their everyday activities. However, older adults were also then subsequently less likely to show effective PM during experimenter-generated ongoing activity. Reproducing the paradox within a single dataset, these data indicate that older adults can effectively act on intentions during everyday activities, but have difficulty in prospective remembering during experimenter-generated ongoing tasks. 相似文献
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Do interindividual differences in prospective memory task performance reflect individual differences in personality and lifestyle? Do the cognitive abilities known to change with age retain their power to predict episodic prospective memory task performance after controlling for personality and lifestyle variables, and do personality and lifestyle variables offer predictive power apart from that provided by cognitive ability measures? To answer these questions, we conducted a study with community‐living healthy individuals (n= 141) between 18 and 81 years of age. They completed three different episodic prospective memory tasks – two laboratory tasks and one field task – as well as various measures of personality, lifestyle, and cognitive ability. The results indicated that personality and lifestyle reliably predicted who will succeed and who will fail on all three episodic prospective memory tasks. Conscientiousness predicted performance on two of the prospective memory tasks; socially prescribed perfectionism and neuroticism each predicted performance on one of the prospective memory tasks. Cognitive ability predicted performance on one of the laboratory prospective memory tasks but not on the other two prospective memory tasks. After we controlled for individual differences in personality and lifestyle variables, cognitive ability was no longer able to predict performance on the laboratory prospective memory task. By contrast, controlling for cognitive ability had no influence on the predictive power of the personality and lifestyle variables. 相似文献
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Selma Lugtmeijer Edward H. F. de Haan Roy P. C. Kessels 《Neuropsychology, development, and cognition. Section B, Aging, neuropsychology and cognition》2019,26(3):387-406
Working memory and episodic memory decline with age. However, as they are typically studied separately, it is largely unknown whether age-associated differences are similar. A task design was developed in which visual working memory and episodic memory performances were measured using the same stimuli, with both tasks involving context binding. A 2-back working memory task was followed by a surprise subsequent recognition memory task that assessed incidental encoding of object locations of the 2-back task. The study compared performance of younger (N=30; Mage=23.5, SDage=2.9, range=20-29) and older adults (N=29; Mage=72.1, SDage=6.8, range=62-90). Older adults performed worse than younger adults, without an interaction effect. In younger, but not in older adults, performance on the two tasks was related. We conclude that although age differences (Young>Older) are similar in the working memory and incidental associative memory tasks, the relationship between the two memory systems differs as a function of age group. 相似文献
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David M. Lane 《Journal of experimental child psychology》1979,28(1):16-29
The ability to efficiently allocate attention between two tasks differing in payoff was investigated developmentally. Ten subjects from each of three grade levels (second, fourth, and college) performed an auditory and a visual memory task simultaneously. Modality of the primary task, difficulty of the primary task, and difficulty of the secondary task were varied factorially within subjects. The difference between primary and secondary performances increased with age: All college students, about half of the fourth graders, and none of the second graders showed a meaningful degree of differentiation between primary and secondary tasks. 相似文献
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《Quarterly journal of experimental psychology (2006)》2013,66(5):864-875
Research on ageing and prospective memory—remembering to do something in the future—has resulted in paradoxical findings, whereby older adults are often impaired in the laboratory but perform significantly better than younger adults in naturalistic settings. Nevertheless, there are very few studies that have examined prospective memory both in and outside the laboratory using the same sample of young and old participants. Moreover, most naturalistic studies have used time-based tasks, and it is unclear whether the prospective memory and ageing paradox extends to event-based tasks. In this study, 72 young (18–30 years), 79 young-old (61–70 years), and 72 old-old (71–80 years) participants completed several event-based tasks in and outside the laboratory. Results showed that the ageing paradox does exist for event-based tasks but manifests itself differently from that in time-based tasks. Thus, younger adults outperformed old-old participants in two laboratory event-based tasks, but there were no age effects for a naturalistic task completed at home (remembering to write the date and time in the upper left corner of a questionnaire). The young and old-old also did not differ in remembering to retrieve a wristwatch from a pocket at the end of the laboratory session. This indicates that the paradox may be due to differences in ongoing task demands in the lab and everyday life, rather than the location per se. The findings call for a concentrated effort towards a theory of cognitive ageing that identifies the variables that do, or do not, account for this paradox. 相似文献
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Previous research with adults found that spatial short-term and working memory tasks impose similar demands on executive resources. We administered spatial short-term and working memory tasks to 8- and 11-year-olds in three separate experiments. In Experiments 1 and 2 an executive suppression task (random number generation) was found to impair performances on a short-term memory task (Corsi blocks), a working memory task (letter rotation), and a spatial visualisation task (paper folding). In Experiment 3 an articulatory suppression task only impaired performance on the working memory task. These results suggest that short-term and working memory performances are dependent on executive resources. The degree to which the short-term memory task was dependent on executive resources was expected to be related to the amount of experience children have had with such tasks. Yet we found no significant age-related suppression effects. This was attributed to differences in employment of cognitive strategies by the older children. 相似文献
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Three experiments compared learning-disabled and skilled readers' performance on naturalistic memory measures, as well as investigated the relationship between memory performance on everyday and laboratory tasks. In Experiment 1, the laboratory task (sentence span task) and everyday memory measures were correlated moderately for both ability groups. Compared to skilled readers, disabled readers performed poorly on the sentence span task, and were less likely than skilled readers to remember information related to common objects and consequential events. Disabled readers were also less likely to rely on external prompts to help them recall everyday information. Experiment 2 extended the previous findings to older subjects and found that the majority of significant correlations between the laboratory (word span task) and everyday memory tasks were isolated to disabled readers. When compared to chronological-age-matched subjects, disabled readers were inferior in recency performance on the laboratory (word span) and natural serial recall (e.g., recall of U.S. presidents) tasks. Experiment 3 showed that under conditions that facilitate item accessibility, ability group differences in recall were comparable. Taken together, the findings indicate that disabled readers' memory deficits are pervasive across naturalistic and laboratory measures at the younger age, but these deficits diminish for older students. Further, the deficits that occur at the older age are due to problems in accessing knowledge. 相似文献
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It is not known why people move their eyes when engaged in non-visual cognition. The current study tested the hypothesis that differences in saccadic eye movement rate (EMR) during non-visual cognitive tasks reflect different requirements for searching long-term memory. Participants performed non-visual tasks requiring relatively low or high long-term memory retrieval while eye movements were recorded. In three experiments, EMR was substantially lower for low-retrieval than for high-retrieval tasks, including in an eyes closed condition in Experiment 3. Neither visual imagery nor between-task difficulty was related to EMR, although there was some evidence for a minor effect of within-task difficulty. Comparison of task-related EMRs to EMR during a no-task waiting period suggests that eye movements may be suppressed or activated depending on task requirements. We discuss a number of possible interpretations of saccadic eye movements during non-visual cognition and propose an evolutionary model that links these eye movements to memory search through an elaboration of circuitry involved in visual perception. 相似文献