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思维与语言的关系:来自认知神经科学的证据 总被引:1,自引:0,他引:1
在有关人类心智的研究中,思维与语言的关系始终是一个复杂而重要的课题。借助于新的技术手段和研究思路,当代认知神经科学从新的角度探讨了这个古老而神秘的课题。其研究的基本逻辑是:如果某种特定的思维过程(比如简单的算术运算或者三段论推理)在本质上是“语言的”,那么,在进行这种思维活动时,大脑中负责语言信息处理的区域就会参与;反之,如果某种思维过程在本质上是“空间的”,则大脑中负责空间信息处理的区域就会参与其中。结合来自直观的脑功能图谱证据与其它的跨领域证据(如来自行为实验和脑损伤研究的证据),能够帮助我们更加深入地认识和理解思维与语言的关系问题。 相似文献
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语言转换情境是否影响非熟练双语者的认知控制存在争议。实验1和实验2分别采用不同的实验范式探讨语言转换对非熟练双语者的认知控制是否会有即时的影响, 以及对不同认知控制成分的影响是否会有不同。结果表明, 语言转换情境能够即时地促进反应抑制, 阻碍干扰抑制, 但对认知灵活性没有影响, 同时说明了反应抑制、干扰抑制和认知灵活性属于3种不同的认知成分, 其内在作用机制不同。此外, 研究结果还进一步说明了双语者的认知控制优势是双语者长期双语使用的结果, 为双语优势的内在机制提供了实验支持。 相似文献
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本研究考察了情境线索对社会目标不同内容维度之间的推断的影响。研究一发现,缺乏情境线索时,两个基本维度热情和能力之间呈一种正向推断。研究二发现,当情境线索明确指向高能力时,高热情描述会导致低能力推断,同时也引发了消极的行为倾向。研究三进一步考察了热情的两个子维度社交性和道德性之间的推断,结果发现描述社交性职业的社交性信息或者描述道德性职业的道德性信息时,对目标对象的整体评价和行为意愿都更为积极。本研究表明,情境的预期性线索为社会认知内容的推断提供了基本的认知框架,当信息呈现与情境预期相匹配时,更容易产生积极推断。 相似文献
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基于5162名老年被试,探究社会隔离对老年人认知功能的影响、孤独感和抑郁的中介作用以及认知储备的调节作用。研究发现:(1)社会隔离显著负向预测认知功能,朋友隔离的预测作用较家庭隔离突出;(2)抑郁在其间发挥独立中介作用,孤独感和抑郁在其间发挥链式中介作用;(3)认知储备显著调节社会隔离、孤独感和抑郁对认知功能的影响,低认知储备是孤独感独立中介作用成立的条件,且低认知储备下抑郁的独立中介作用以及孤独感和抑郁的链式中介作用更强。研究结论对于老年人认知功能的保护工作具有积极意义。 相似文献
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本研究考察了情境线索对社会目标不同内容维度之间的推断的影响。研究一发现,缺乏情境线索时,两个基本维度热情和能力之间呈一种正向推断。研究二发现,当情境线索明确指向高能力时,高热情描述会导致低能力推断,同时也引发了消极的行为倾向。研究三进一步考察了热情的两个子维度社交性和道德性之间的推断,结果发现描述社交性职业的社交性信息或者描述道德性职业的道德性信息时,对目标对象的整体评价和行为意愿都更为积极。本研究表明,情境的预期性线索为社会认知内容的推断提供了基本的认知框架,当信息呈现与情境预期相匹配时,更容易产生积极推断。 相似文献
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场依存性认知方式对问题表征及表征转换的影响 总被引:3,自引:0,他引:3
从238名初一学生被试中筛选出场依存组和场独立组各64名,对两组被试在线索提示前后解决表述明确问题、隐含信息问题、含误导信息问题进行比较.结果显示:隐含和误导信息会导致被试问题表征错误增加,线索提示可从总体上改善被试的信息提取与识别,但其对问题表征及表征转换的促进效应均受到被试场依存性认知方式的影响.场独立性者不善于接受提示,场依存性者能在线索提示下更有效地识别与纠正问题表征错误.在有误导信息时,场依存性者对表征错误的识别与纠正存在困难. 相似文献
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ABSTRACT The phonological loop plays an important role in task switching. Until now, however, it has been unclear whether it is the maintenance of the task sequence or the retrieval of the task goal that requires phonological processing. In the present study, 60 participants (20 children, 20 adolescents, 20 young adults) performed three phonological working-memory tests before they switched between two tasks in a cue-present condition (random task sequence) and in a cue-absent condition (predictable task sequence). Results revealed that better phonological and central-executive working-memory performance predicted lower switch costs. In line with age-differentiation of cognitive abilities switching was less coupled with working memory in adults compared to children and adolescents. Interestingly, however, relations were only demonstrated in the cue-present but not in the cue-absent condition, indicating that it is more the retrieval of the task goal than the maintenance of the task sequence that requires the involvement of phonological processing. 相似文献
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《Quarterly journal of experimental psychology (2006)》2013,66(2):358-376
There is increasing evidence that task rules help shield the response against distractor interference. Here, the authors investigate the cognitive mechanisms underlying this assumed shielding function of task rules and how it is adjusted to changing task demands. In two experiments, participants switched between a noun categorization and an adjective categorization task. Target words were superimposed on distractor pictures. These pictures were always irrelevant and depicted either objects also used as target words in the noun task (noun distractors) or objects that were not part of the noun target-set but could be categorized according to the noun task (noun-related distractors). Results show that (a) on task repetitions shielding prevents interference from any distractors associated with a competing task; this is indicated by the lack of interference on adjective task repetitions; and (b) shielding is reduced on task switches. In the noun task, this reduction resulted in attenuated interference by noun-related distractors. In the adjective task, spatial distractors did not interfere despite the reduction. This result suggests that shielding is supported by a processing advantage for task-related information and not by distractor suppression. 相似文献
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《Quarterly journal of experimental psychology (2006)》2013,66(11):2247-2259
The current study assessed the effect that unexpected task constraint, following self-generated task choice, has on task switching performance. Participants performed a modified double-registration voluntary task switching procedure in which participants specified the task they wanted to perform, were presented with a cue that, on the majority of trials, confirmed the choice, and then performed the cued task. On a small portion of trials, participants were cued to perform a task that did not match their choice. Trials on which cues unexpectedly failed to match the chosen task were associated with costs. These costs were particularly large when participants chose to switch tasks but had to unexpectedly repeat the previous task. The results suggest that when participants choose to switch tasks, they prepare for that switch in anticipation of the stimulus, and the preparation is durable such that it cannot be readily undone. 相似文献
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《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
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以汉字义符和英文词后缀为对象,考察了汉-英双语者语码切换的机制及切换代价的来源。结果表明:(1)在亚词汇水平上,汉字义符和英文词后缀影响字词认知的过程,但对语码切换代价的影响不显著,支持语码切换与任务转换的发生机制相同的观点。(2)语言熟练程度是影响语码切换代价及切换代价不对称性的主要原因。整个研究表明,在亚词汇水平上,语码切换与任务转换的实质相同。参考任务转换中切换代价的来源,归纳了语码切换代价的可能来源。 相似文献
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Magali Kreutzfeldt Denise N. Stephan Klaus Willmes Iring Koch 《Journal of Cognitive Psychology》2017,29(5):607-617
In the current study, we addressed modality-specificity of the flexibility of cognitive control. We compared performance in single-task and mixed-tasks blocks between blocked auditory and visual stimuli assessing alternation costs (single vs. mixed). Mixed blocks comprised task switches only. The tasks consisted of numerical parity, magnitude, and distance judgments about numbers between one and nine without five. A cue indicated the relevant task. The cue–stimulus interval was varied (short vs. long interval) to examine preparation effects. The results indicated higher response times (RTs) and error rates (ERs) in mixed- vs. single-tasks blocks. The alternation costs in ERs were larger for auditory compared to visual stimulus presentation. Moreover, the reduction of RT alternation costs based on increased preparation time was more pronounced for the auditory modality compared to the visual modality. These results suggest a modality-specific influence on processes involved in maintaining and updating task sets in working memory. 相似文献
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In 5 studies, the authors investigated the effects of comparison with an individual versus comparison with the statistical average on self-evaluations of performance and ability. In Studies 1 and 2, participants took a test of lie detection ability and were provided with the average score and the score of an individual coactor. Both types of feedback significantly affected self-evaluations of performance, but only comparison with the coactor significantly affected self-evaluations of ability. Studies 3 and 4 demonstrated that the presence of a coactor moderated the effect of aggregate social comparison on self-evaluations of ability. The results provide preliminary support for the contention that minimizing the impact of comparison with the average is a self-serving strategy that is facilitated by the presence of others. 相似文献
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ELLEN HARTMANN TURID JOHANNE ERI ANNE HELENE SKINSTAD 《Scandinavian journal of psychology》1989,30(1):52-63
Three months before school entrance a sample of 29 children and their mothers was tested for degree of decentred child educability and degree of decentred maternal teaching. Mother and child were tested in two different situations, thus preventing interdependency between the measures of mother and child. Four months after school entrance, teacher judgements of school performance were obtained. A strong correspondence between degree of decentred child educability and degree of decentred maternal teaching was demonstrated. Degree of decentred maternal teaching and degree of decentred child educability were found to be good predictors of school performance, accounting for respectively 45 and 33% of the variance in school performance. In contrast a test of school readiness only accounted for 2% of the variance. A test of intelligence given after the teacher judgement accounted for 31% of the variance. The fact that the mother seems to be a better predictor of her child's school performance than the child himself, supports the assumption that parents, particularly mothers, are important mediators between the child and the outer world. 相似文献