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121.
《Journal of Cognitive Psychology》2013,25(7):789-795
This study was aimed at investigating the role of stimulus distinctiveness on the retrieval of semantic and episodic information from familiar faces and voices. Distinctiveness of famous faces and voices was manipulated in order to assess its role as a potential underlying factor of face superiority. In line with previous findings, more semantic and episodic information was retrieved from faces than from voices. Semantic information was better retrieved from distinctive than from typical stimuli. Nevertheless, distinctiveness seemed to impact less than stimulus domain on the recall of semantic details. Indeed, more semantic information was retrieved from typical faces than from distinctive voices. The consistency of these results with current models of person recognition is discussed. 相似文献
122.
声旁类型与频率在汉字和部件识别中的交互作用 总被引:1,自引:0,他引:1
用识别整字和识别部件两种任务探讨两种声旁频率——组字频率和使用频率的作用。结果发现:在局部识别中声旁使用频率的影响和部件类型有交互作用。声旁使用频率对识别汉字单部件声旁有易化作用。声旁组字频率的影响和部件类型有交互作用。声旁组字频率对识别汉字多部件组合声旁有易化作用。在整字识别中,声旁的使用频率有易化作用;声旁的组字频率的作用受到部件类型的影响,多部件组合声旁的组字频率对识别整字有易化作用。 相似文献
123.
再认中意识和无意识的贡献大小--兼论内隐记忆的抗老化现象 总被引:5,自引:1,他引:4
本研究以探索记忆中意识和无意识贡献大小为目的,采用年龄和材料两个自变量,年龄分中青年和老年两组,被试均为23人,材料分文字和非文字两种。实验通过PDP的包含和排除测验计算意识和无意识的贡献大小。结果发现:(1)意识在不同年龄和不同材料的记忆中所起作用的差异极为显著;(2)无意识在文字材料的记忆中所起作用的差异极为显著;(3)无意识在非文字材料和不同年龄的记忆中所起的作用的差异均不显著。由此推论,老年人记忆中无意识贡献并未下降。这似说明,老年人内隐记忆并未老化。 相似文献
124.
Episodic memory and the hippocampus: it's about time 总被引:2,自引:0,他引:2
Several recent studies have sought to develop animal models of episodic memory, the capacity to recollect unique personal experiences. However, these studies have not yet provided unambiguous evidence that this capacity is based on recollection of the learning episodes. A recent study that examined memory for the ordering of events within unique experiences, and demonstrated a critical and selective role for the hippocampus, suggests a new and promising model for neurobiological analyses of episodic memory. 相似文献
125.
Giorgia Cona Gianvito Laera Nicola Edelstyn Patrizia S. Bisiacchi 《Journal of Neuropsychology》2019,13(3):398-416
Identifying the neurocognitive mechanisms that lead individuals remembering to execute an intention at the right moment (prospective memory, PM) and how such mechanisms are influenced by the features of that intention is a fundamental theoretical challenge. In particular, the functional contribution of subcortical regions to PM is still unknown. This study was aimed at investigating the role of the medial subdivision of the mediodorsal thalamic nucleus (mMDT) in PM, with particular focus on the processes that are mediated by the projections from/to this structure. We analysed the performance of a patient (OG) with a right-sided lesion involving the mMDT in a series of PM tasks that varied for focality (i.e., overlapping of processes for the PM and ongoing tasks) and emotional valence of the stimuli, comparing the patient's performance with that of a control group. We found that the mMDT damage led to deficits in PM that were modulated by focality and emotional valence. OG indeed showed: a greater cost in the ongoing performance when a non-focal PM task was added; a slowing down in retrieving the intentions, in particular when these were associated with focal PM cues; an abnormal performance in the task with positive PM cues. Our findings provide evidence of a contribution of mMDT to PM and suggest a modulation of prefrontal-dependent strategic monitoring and a possible interaction with the limbic structures in the integration of emotion and PM processes. They also give support to the still controversial idea that connections with the perirhinal cortex mediate familiarity-based recognition. 相似文献
126.
127.
汉字属性匹配与大脑两半球协同活动 总被引:7,自引:0,他引:7
在识别汉字时,大脑两半球同时加工的作业成绩是否随加工阶段的增加而显出优势。本研究用汉字形、音、义三种属性分别相匹配的方法用用指定指定提取法,所得实验结果一致表明,形似材料双侧视野同时识别与单侧视野识别成绩无显著差别,而同音与近义材料则表现出双侧呈现显著优于单侧呈现的作业成绩。最后结合脑功能成像研究,对加工阶段影脑半球佃同活动的原因进行了讨论。 相似文献
128.
Event-Related Potentials (ERPs) were collected concurrently with stimulus presentation during a source monitoring task. Younger adults were less likely than older adults to make source monitoring errors and their ERP records showed far greater discrimination between target stimuli and familiar but nontarget foils. Older adults not only made more source errors but produced high amplitude late positivities to the nontarget foils even when these foils were correctly rejected. Under divided attention conditions, younger adults performance was similar to that of the older adults both behaviorally and electrophysiologically. These data illustrate the role that attentional resources play in the ability to inhibit response tendencies and suggest that age differences in source monitoring may be more related to attentional control than inefficiencies in the encoding of contextual information. As well, they suggest that the ERP late positivity may represent a more general response to item salience rather than serve as an index of recollection as is the current view. 相似文献
129.
汉字识别中部件的频率效应 总被引:19,自引:0,他引:19
用整字识别、整合识别和部件识别任务探讨部件频率在汉字显示识别中的作用.实验一发现第一部件频率促进低频两部件合体字识别;实验二先后呈现合体字两组成部件并识别整字,第二部件频率有干扰作用;实验三识别合体字中的部件,部件频率有易化作用.部件在汉字识别中的易化和干扰作用受整字频率和结构类型的影响. 相似文献
130.
What makes people infer that two continuous-valued entities are functionally related? Involving factors influencing human confidence in the existence of a functional link between two supposed variables has not so far been discussed in function learning literature. By examining this problem and based on relevant results from cognitive psychology, I propose a hypothesis according to which human confidence in a link between cue and criterion is affected by three factors: The difficulty of functions, the level of noise in observed data, and the sample size. Here, the formalization of this hypothesis forms a novel mathematical model of function learning which can also be used for predictions; so the resulting model receives cue-criterion pairs of a supposed relation and produces two outputs: Confidence and predicting function. In an experiment, the performance of a computational implementation of the model is compared with human data. The results show that the model is successful in tracking changes in human confidence. A close correspondence between the predictions of the model and humans was also achieved. 相似文献