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91.
Mirella Díaz-Santos Samantha Mauro Bo Cao Arash Yazdanbakhsh Sandy Neargarder 《Neuropsychology, development, and cognition. Section B, Aging, neuropsychology and cognition》2017,24(2):115-134
The effects of age on the ability to resolve perceptual ambiguity are unknown, though it depends on frontoparietal attentional networks known to change with age. We presented the bistable Necker cube to 24 middle-aged and OAs (older adults; 56–78 years) and 20 YAs (younger adults; 18–24 years) under passive-viewing and volitional control conditions: Hold one cube percept and Switch between cube percepts. During passive viewing, OAs had longer dominance durations (time spent on each percept) than YAs. In the Hold condition, OAs were less able than YAs to increase dominance durations. In the Switch condition, OAs and YAs did not differ in performance. Dominance durations in either condition correlated with performance on tests of executive function mediated by the frontal lobes. Eye movements (fixation deviations) did not differ between groups. These results suggest that OAs’ reduced ability to hold a percept may arise from reduced selective attention. The lack of correlation of performance between Hold and executive-function measures suggests at least a partial segregation of underlying mechanisms. 相似文献
92.
93.
Fernando Cuetos Noemí Arce Carmen Martínez Andrew W. Ellis 《Journal of Neuropsychology》2017,11(1):26-39
Impairments of word recognition in Alzheimer's disease (AD) have been less widely investigated than impairments affecting word retrieval and production. In particular, we know little about what makes individual words easier or harder for patients with AD to recognize. We used a lexical selection task in which participants were shown sets of four items, each set consisting of one word and three non‐words. The task was simply to point to the word on each trial. Forty patients with mild‐to‐moderate AD were significantly impaired on this task relative to matched controls who made very few errors. The number of patients with AD able to recognize each word correctly was predicted by the frequency, age of acquisition, and imageability of the words, but not by their length or number of orthographic neighbours. Patient Mini‐Mental State Examination and phonological fluency scores also predicted the number of words recognized. We propose that progressive degradation of central semantic representations in AD differentially affects the ability to recognize low‐imageability, low‐frequency, late‐acquired words, with the same factors affecting word recognition as affecting word retrieval. 相似文献
94.
《Frontiers of Philosophy in China》2017,(3):429-449
At the end of the twentieth century,there was a trend in Chinese literature towards characterizing Chinese culture as the "unity of Tian (Heaven) and humanity天人合一.” Rather than arguing against such a view,I present in this paper a series of debates over the paradoxes within the concept of unity as well as various notions of love,hoping to demonstrate the depth and complexity of this seemingly simple and dogmatic dictum so that those who cite it can be alert to its potential intricacies.I will discuss three elements which threaten to render the pursuit of oneness an impossible project:(1) the relation between naming and the named,which makes any conceptual attempt to attain oneness an infinite regress,as can be seen in Zhuangzi's莊子 argument against Hui Shi's惠施 oneness;(2) the gap between contemplation and practice,as can be seen in the contrast between Zhang Zai's張載 contemplative oneness and Cheng Hao's程顥 perceptual oneness;and (3) the self-bifurcating attentive acts of the heart-mind,which render any conscious endeavor to attain oneness a self-defeating project.Unlike Cheng Hao's emphasis on the subjective experience of perceptual oneness,his followers posit its underlying metaphysical substance as qi or xing (nature) and believe that moral self-cultivation should start from a metaphysical insight into this substance.Zhu Xi 朱熹 rejects the approach of grounding ethics on metaphysics and argues that love is not based on the notion of unity in terms of qi.He sees the ultimate comprehension of unity rather as a "metaphysical promise," a goal to be attained by following the Confucian Way of selfcultivation,which starts simply from reflection and practice on things near at hand. 相似文献
95.
Aleksandar Aksentijevic Mark A. Elliott 《Quarterly journal of experimental psychology (2006)》2017,70(8):1535-1548
Dynamic distortion of the visual field has been shown to affect perceptual judgment of visual dimensions such as size, length, and distance. Here, we report four experiments demonstrating that the different aspects of a triangle differently influence judgments of distance. Specifically, when the base of the triangle faces the centre of the display, participants consistently underestimate and overestimate the distance of a small dot from the unmarked centre of the display relative to conditions in which the vertex of the triangle faces the centre. When the dot is close to the figure, the distance of the dot to the centre is underestimated. Conversely, when the dot is close to the figure, the distance to the centre is overestimated. The effect is replicated when the internal distances are equalized and when ellipses are used instead of triangles. These results support a ripple model of spatial distortion in which local curvature acts to attract or repel objects. In conclusion, we suggest some implications of our findings for theories of perceptual organization. 相似文献
96.
《British journal of psychology (London, England : 1953)》2017,108(1):1-27
Phonological development is sometimes seen as a process of learning sounds, or forming phonological categories, and then combining sounds to build words, with the evidence taken largely from studies demonstrating ‘perceptual narrowing’ in infant speech perception over the first year of life. In contrast, studies of early word production have long provided evidence that holistic word learning may precede the formation of phonological categories. In that account, children begin by matching their existing vocal patterns to adult words, with knowledge of the phonological system emerging from the network of related word forms. Here I review evidence from production and then consider how the implicit and explicit learning mechanisms assumed by the complementary memory systems model might be understood as reconciling the two approaches. 相似文献
97.
Zahra Zargol Moradi Jie Sui Miles Hewstone Glyn William Humphreys 《European journal of social psychology》2017,47(6):763-774
Studies have shown that attention prioritizes stimuli associated with the in‐group. However, the extent to which this so‐called in‐group favoritism is driven by relevance is not clear. Here, we investigated this issue in a group of university rowers using a novel perceptual matching task based on the team label–color associations. Across three experiments, participants showed enhanced performance for the in‐group stimulus regardless of its familiarity level. These findings confirmed the role of relevance in in‐group favoritism. In a further control study, the advantage for certain stimuli was not found in an independent sample of participants who were not identified with the teams but were familiar with the label–color associations, indicating that in‐group relevance was necessary for the in‐group favoritism. Together, these findings suggest that in‐group relevance facilitates learning across existing and new associations. The consequences of these findings for understanding in‐group effects on perceptual processing are discussed. 相似文献
98.
基于经验的整体加工理论认为, 随着知觉经验的增多, 人们加工面孔的专家化能力逐渐增强。其中一种表现形式为, 在知觉面孔时更倾向于整体加工。该理论已经得到了一些实验证据的支持, 但未能解释另外一些研究的发现, 即对他族人群没有长期知觉经验的被试在加工他族面孔时也有强烈的整体加工。本研究旨在考察知觉经验对面孔整体加工的影响, 包括两个实验。实验1a通过组合面孔范式测量了中国被试在辨别本族面孔、他族面孔和种族融合面孔时的组合面孔效应(即面孔整体加工强度)。结果发现, 被试在知觉种族融合面孔时没有表现出组合面孔效应, 在知觉本族面孔和他族面孔时都表现出强烈的组合面孔效应。实验1b以灰阶图重复了实验1a。结果发现, 被试在知觉种族融合面孔时仍然没有表现出组合面孔效应, 在知觉本族面孔和他族面孔时表现出强烈的组合面孔效应。实验2通过操纵种族融合面孔的有或无, 测量5 s的知觉经验对融合面孔的组合效应的影响。结果发现, 在经过短时的知觉经验后, 被试在知觉融合面孔时也表现出强烈的组合面孔效应。上述实验结果表明, 中国被试在加工本族面孔、他族面孔和种族融合面孔时所诱发组合面孔效应有显著的、量的差别, 且这种整体加工的差异不会受到面孔肤色信息的影响。在经过短时的知觉经验后, 中国被试在加工种族融合面孔时表现出强烈的整体加工。该研究的发现提示, 不论是短时知觉经验还是长期知觉经验, 知觉经验的增加是面孔整体加工的一个关键要素。 相似文献
99.
Monin (2003) showed that the attractiveness of a face increases its perceived familiarity regardless of prior exposure, and suggested that this beautiful-is-familiar effect was due to the misattribution to familiarity of the positive affect (or “warm glow”) elicited by attractive faces. This research tests the alternative interpretation that an evaluative match between a positive stimulus (an attractive face) and a positive response (“familiar”) accounts for this effect in the absence of any misattribution. In a face recognition task, participants were led to signal their sense of familiarity with previously seen and unseen faces by selecting either a pleasant (affectively congruent) or unpleasant (affectively incongruent) image. Consistent with the warm glow heuristic, higher false alarm rates were obtained for more attractive distracters, and this effect survived (and was, if anything, stronger) when an affectively incongruent response format was used. These findings are discussed in the context of current face memory and perceptual fluency models. 相似文献
100.
Antonio L. Freitas Allen Azizian Stephanie Travers Stephen A. Berry 《Journal of experimental social psychology》2005,41(6):636-644
A fundamental question for evaluation research is whether cues can impact evaluative responses directly or only in combination with contextual information. Focusing on the experience of processing fluency, the current work tested whether manipulating this cue’s motivational context would moderate its evaluative impact. Because fluently processed stimuli can be assumed to communicate safety, owing to implicit signals of either familiarity (through processes monitoring perception-memory coordination), we reasoned that motivation to avoid negative events should heighten preferences for fluently processed stimuli. Following a motivation manipulation, prevention-focused, but not promotion-focused, participants preferred stimuli that they were able to process quickly (Experiment 2) and that were preceded by concordant primes (Experiment 1). These findings suggest that the value of fluent processing reflects its relation to contextual features, such as one’s current motivational state. 相似文献