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191.
本研究采用图-词匹配的判断任务探讨视觉符号否定的加工机制, 设计3个实验, 分别探讨视觉符号否定在加工早期(250 ms)、中期(750 ms)及晚期(1500 ms)的心理模拟特点。结果发现, 在视觉符号否定加工的早期、中期及晚期, 与真实状态匹配的否定相关词的反应时都显著快于与被否定状态匹配的肯定相关词。该结果表明, 与文字符号否定加工的两步模拟假设不同, 在视觉符号否定的加工中, 被试在早期就模拟了事件的真实状态, 并在中期和晚期一直保持该状态的表征, 符合一步模拟假设; 此外, 被否定信息加工的抑制/保存假设得到支持。 相似文献
192.
工作记忆是当前认知心理学中的一个研究热点,而其言语子系统与视觉子系统之间的关系又是一个颇具争论性的问题。实验1、2采用双任务范式考察了言语工作记忆对视觉工作记忆的影响。结果发现,满负荷言语负载条件下的视觉记忆的成绩显著低于无言语负载条件。这表明,言语工作记忆影响了视觉工作记忆任务的完成。 相似文献
193.
在视觉工作记忆的研究中,是否可能划分出视觉空间工作记忆和视觉物体工作记忆两个子系统还没有定论.子系统划分成立的基本前提是以特征为存储单位.当前关于存储单位的理论有特征理论、客体理论和双重存储等不同观点,多数视觉信息加工与存储机制的研究支持双重存储说.注意与视觉信息的加工和存储相互影响,因此,加工及存储机制的研究就要在具体的注意水平上进行. 相似文献
194.
Coordinating cognition: the costs and benefits of shared gaze during collaborative search 总被引:1,自引:0,他引:1
Collaboration has its benefits, but coordination has its costs. We explored the potential for remotely located pairs of people to collaborate during visual search, using shared gaze and speech. Pairs of searchers wearing eyetrackers jointly performed an O-in-Qs search task alone, or in one of three collaboration conditions: shared gaze (with one searcher seeing a gaze-cursor indicating where the other was looking, and vice versa), shared-voice (by speaking to each other), and shared-gaze-plus-voice (by using both gaze-cursors and speech). Although collaborating pairs performed better than solitary searchers, search in the shared gaze condition was best of all: twice as fast and efficient as solitary search. People can successfully communicate and coordinate their searching labor using shared gaze alone. Strikingly, shared gaze search was even faster than shared-gaze-plus-voice search; speaking incurred substantial coordination costs. We conclude that shared gaze affords a highly efficient method of coordinating parallel activity in a time-critical spatial task. 相似文献
195.
Shih SI 《Cognitive psychology》2008,56(3):210-236
An attention cascade model is proposed to account for attentional blinks in rapid serial visual presentation (RSVP) of stimuli. Data were collected using single characters in a single RSVP stream at 10Hz [Shih, S., & Reeves, A. (2007). Attentional capture in rapid serial visual presentation. Spatial Vision, 20(4), 301-315], and single words, in both single and dual RSVP streams at 19Hz [Potter, M. C., Staub, A., & O'Connor, D. H. (2002). The time course of competition for attention: Attention is initially labile. Journal of Experimental Psychology: Human Perception and Performance, 28(5), 1149-1162]. The model adopts similar architecture of the cognitive accounts of attentional blinks and employs computational details from theories of attention gating. The model has elaborated working memory and attention control mechanism. Both bottom-up and top-down salience are explicit in the model. Quantitative fits are good and the model parameters have plausible values. The model handles stimulus competition, lag 1 sparing, intrusion errors, and magnitude of the dip; it also accounts for commonly observed effects such as stimulus similarities (local and global), target+1 blank, and stimulus salience. 相似文献
196.
NOBUYUKI KAWAI 《The Japanese psychological research》2008,50(2):100-103
Abstract: Despite previous failures to identify visual‐upon‐auditory spatial‐cuing effects, recent studies have demonstrated that the abrupt onset of a lateralized visual stimulus triggers a shift of spatial attention in response to auditory judgment. Nevertheless, whether a centrally presented visual stimulus orients auditory attention remained unclear. The present study investigated whether centrally presented gaze cues trigger a reflexive shift of attention in response to auditory judgment. Participants fixated on a schematic face in which the eyes looked left or right (the cue). A target sound was then presented to the left or right of the cue. Participants judged the direction of the target as quickly as possible. Even though participants were told that the gaze direction did not predict the direction of the target, the response time was significantly faster when the gaze was in the target direction than when it was in the non‐target direction. These findings provide initial evidence for visual‐upon‐auditory spatial‐cuing effects produced by centrally presented cues, suggesting that a reflexive crossmodal shift of attention does occur with a centrally presented visual stimulus. 相似文献
197.
Brian P. Meier Benjamin M. Wilkowski 《Journal of experimental social psychology》2008,44(5):1383-1387
Research has shown that those individuals high in agreeableness recruit helpful thoughts in hostile contexts, presumably in the service of controlling aggressive behavior. The present experiment follows from such work, but importantly does so in a manner seeking to support causal conclusions. Participants were randomly assigned to an experimental training condition, in which hostile prime words were followed by helpful target words, or to a control condition that did not involve such pairings. Those assigned to the experimental condition subsequently exhibited lower levels of aggression in a laboratory task. Additional considerations and findings support the potential involvement of self-regulation processes. In general terms, the experiment reveals that a brief cognitive manipulation targeting processes thought to underlie aggression control was in fact causally effective in reducing subsequent levels of aggressive behavior. 相似文献
198.
We conducted three studies to examine whether the four great ape species (chimpanzees, bonobos, gorillas, and orangutans)
are able to use behavioral experimenter-given cues in an object-choice task. In the subsequent experimental conditions subjects
were presented with two eggs, one of which contained food and the other did not. In Study 1 the experimenter examined both
eggs by smelling or shaking them, but only made a failed attempt to open (via biting) the egg containing food. In a control
condition, the experimenter examined and attempted to open both eggs, but in reverse order to control for stimulus enhancement.
The apes significantly preferred the egg that was first examined and then bitten, but had no preference in a baseline condition
in which there were no cues. In Study 2, we investigated whether the apes could extend this ability to cues not observed in
apes so far (i.e., attempting to pull apart the egg), as well as whether they made this discrimination based on the function
of the action the experimenter performed. Subjects significantly preferred eggs presented with this novel cue, but did not
prefer eggs presented with a novel but functionally irrelevant action. In Study 3, apes did not interpret human actions as
cues to food-location when they already knew that the eggs were empty. Thus, great apes were able to use a variety of experimenter-given
cues associated with foraging actions to locate hidden food and thereby were partially sensitive to the general purpose underlying
these actions. 相似文献
199.
进化理论认为风险行为与求偶有关。研究通过比较求偶信息(异性照片或描述异性的词语)、养育后代(孕妇照片)及奖赏信息(金牌照片等)试图进一步探讨繁衍线索对两性知觉和判断风险信息的影响。研究1中, 被试描述理想约会对象后求偶动机得到激发, 相对于描述晴朗天气的控制组, 求偶动机让两性更慢地从高风险信息(如滑雪、冲浪等)转移注意力, 且两性对风险信息的注意转移与社群性向无关。研究2显示, 相对于养育后代和奖赏信息, 求偶信息更为迅速地促使男性对高风险信息做出判断, 但求偶信息让女性比男性更慢地对高风险信息做出判断。研究结果进一步证实了自然选择理论及性选择理论对两性加工风险信息的认知机制具有预测作用。 相似文献
200.
限制饮食是为了控制体重, 长期严格地控制进食的倾向。大量研究表明相对于非限制性饮食者, 限制性饮食者对食物线索尤其是高能量或高美味食物线索存在认知偏向。这种偏向是基于一定的脑神经基础的如前额叶背内侧, 小脑等区域。未来研究应设置严格的筛选标准, 运用视觉odd-one-out和学习-再认实验范式, 重视认知神经机制的探讨, 开展中国限制性饮食者对食物线索加工的认知机制和主要影响因素模型的系统研究。 相似文献