Synchrony effects in automatic and controlled retrieval

Using a speeded retrieval procedure, we investigated time-of-day effects in automatic and controlled retrieval. Morning-type adults were tested at either peak (early morning) or off-peak (late afternoon) times on a speeded implicit (Experiment 1) or explicit (Experiment 2) stem completion task. In Experiment 1, retrieval strategies were identified by changes in response speed between a practice phase with rapid retrieval and an implicit memory test phase. Performance based on controlled retrieval (shown by slowdown participants) showed more priming at peak than at off-peak times of day, a finding confirmed in Experiment 2, in which the participants were given intentional retrieval instructions when the materials switched. In contrast, performance based on automatic retrieval (shown by nonslowdown participants) did not differ across peak and off-peak times. The finding suggests a robust synchrony effect in controlled retrieval, but not in automatic retrieval, which does not appear to vary across the day.     

早期儒家与"民之父母"

历代儒者引经据典,从"民之父母"的角度出发,对统治者提出了亲民、爱民、保民、富民等要求.但是,近现代以来的思想史研究者,对于古代社会君民关系的这一基本理论似乎未着笔墨.本文集中讨论了孔子、曾子、子思、孟子、荀子等早期儒家学派关于"民之父母"的思想,归纳出其中至少包含了"民之父母"需要符合"必达于礼乐之原"、"使民富且寿"、"同于民之好恶"、"顺而教之"、"有父之尊,有母之亲"等原则.孟子则借用"民之父母"的理论痛斥当政者"以政杀人"、"率兽食人"、"使老稚转乎沟壑".荀子指出当天下的最高统治者堕落为"民之怨贼"的地步,统治阶级内部其他符合"民之父母"标准的领袖可以以"革命"方式取而代之.在今人看来是"乌托邦"的这种构想,在儒家看来是应该而且能够实现的蓝图.儒家之外,<管子>提出,"法"才是"民之父母",在"法"的层面,即使是有所过错,也可以有办法弥补,不至于酿成大患,可以看成是儒家思想的重要补充.     

Touch screen assays of behavioural flexibility and error characteristics in Eastern grey squirrels (<Emphasis Type="Italic">Sciurus carolinensis</Emphasis>)

Behavioural flexibility allows animals to adjust their behaviours according to changing environmental demands. Such flexibility is frequently assessed by the discrimination–reversal learning task. We examined grey squirrels’ behavioural flexibility, using a simultaneous colour discrimination–reversal learning task on a touch screen. Squirrels were trained to select their non-preferred colour in the discrimination phase, and their preferred colour was rewarded in a subsequent reversal phase. We used error rates to divide learning in each phase into three stages (perseveration, chance level and ‘learned’) and examined response inhibition and head-switching during each stage. We found consistent behavioural patterns were associated with each learning stage: in the perseveration stage, at the beginning of each training phase, squirrels showed comparable response latencies to correct and incorrect stimuli, along with a low level of head-switching. They quickly overcame perseveration, typically in one to three training blocks. In the chance-level stage, response latencies to both stimuli were low, but during initial discrimination squirrels showed more head-switches than in the previous stage. This suggests that squirrels were learning the current reward contingency by responding rapidly to a stimulus, but with increased attention to both stimuli. In the learned stage, response latencies to the correct stimulus and the number of head-switches were at their highest, whereas incorrect response latencies were at their lowest, and differed significantly from correct response latencies. These results suggest increased response inhibition and attention allowed the squirrels to minimise errors. They also suggest that errors in the ‘learned’ stage were related to impulsive emission of the pre-potent or previously learned responses.     

工作记忆广度：资源限制、记忆消退还是转换机制？

为了检验工作记忆广度有限性的3种假说,即资源限制假说、记忆消退假说和转换机制假说,实验要求被试首先完成一项转换效率任务,然后完成工作记忆广度任务。结果发现,加工负荷对工作记忆广度具有重要影响,保持时间不影响工作记忆广度,转换效率与工作记忆广度也没有显著相关。实验结果支持工作记忆广度受认知资源限制的观点     

How do Mandarin speakers conceptualize time? Beyond the horizontal and vertical dimensions

Cognitive Processing - Mandarin speakers, similar to speakers of most other languages around the world, tend to conceptualize time in terms of space. However, it has been supposed that Mandarin...     

Emotional context at learning systematically biases memory for facial information

Emotion influences memory in many ways. For example, when a mood-dependent processing shift is operative, happy moods promote global processing and sad moods direct attention to local features of complex visual stimuli. We hypothesized that an emotional context associated with to-be-learned facial stimuli could preferentially promote global or local processing. At learning, faces with neutral expressions were paired with a narrative providing either a happy or a sad context. At test, faces were presented in an upright or inverted orientation, emphasizing configural or analytical processing, respectively. A recognition advantage was found for upright faces learned in happy contexts relative to those in sad contexts, whereas recognition was better for inverted faces learned in sad contexts than for those in happy contexts. We thus infer that a positive emotional context prompted more effective storage of holistic, configural, or global facial information, whereas a negative emotional context prompted relatively more effective storage of local or feature-based facial information     

Presentism and the Notion of Existence

The aim of this paper is to make presentism a dynamic view of reality by basing it on a notion of dynamic existence, that is, on a notion of existence which has a dynamic character. The paper shows that both of the notions of existence which are used in metaphysical theories of time (in presentism and eternalism) have a static character and, while such a notion is useful for eternalists, it is useless for presentists if they want to make their view able to remain in agreement with our everyday experience and self-consistent. It is demonstrated that both empirical and theoretical arguments indicate that the presentist should replace the notion of this static existence with the notion of a dynamic existence and that this maneuver allows the presentist to treat his/her existential thesis as equivalent to the thesis that time flows. Not only does this strategy allow us to express presentism in a simple, homogenous way which remains in agreement with our experience, but also permits us to solve some of the difficult problems which presentism faces, such as, for example, the objection of triviality and the question about the rate of time passage. Moreover, such an approach to presentism allows us to solve fundamental metaphysical problems concerning time such as the problem of the openness of the future and the fixity of the past, direction of causation, and relations between presentism and persistence through time by endurance.     

The Practicality of Ancient Virtue Ethics: Greece and China

Virtue ethics has been charged with being unable to provide solutions to practical moral issues. In response, the defenders of virtue ethics argue that normative virtue ethics exists. The debate is significant on its own, yet both sides of the controversy approach the issue from the assumption that moral philosophy has to tell us what we should do. In this essay, I would like to examine the question regarding the practicality of virtue ethics in a different way. Virtue ethics is an ancient approach shared by both ancient Greek philosophers and classic Chinese Confucians, and indeed, ancient Greeks call ethics “practical science.” How, then, do the ancients themselves view the issue of practicality? This essay shows that there is a notion of practicality which is prominent in both ancient Greek and ancient Chinese virtue ethics but is neglected in today’s ethics. According to this notion, ethics is to transform one’s life. The essay also raises a prospect of the revival of this notion.     

试从民国时期穆斯林新文化运动看文明对话的意义

在民国时期穆斯林新文化运动中,穆斯林学者对中国传统文化与伊斯兰文化做了深入的分析与对比,并对它们之间的关系问题作了深刻的反思,促进了中国传统文化与伊斯兰文化的互相交流与相互理解。民国时期穆斯林学者们的探索历程是一种积极的文明对话行为,有着很强的文化自觉意识。他们的这种文化认知行为和理论解释范式不仅是时代背景下文化多元意识的需要,而且也是推动跨文明对话的精神动力和有效途径。     

Mencius’ refutation of Yang Zhu and Mozi and the theoretical implication of Confucian benevolence and love

Confucianism defined benevolence with “feelings” and “love.” “Feelings” in Confucianism can be mainly divided into three categories: feelings in general (seven kinds of feelings), love for one’s relatives, and compassion (Four Commencements). The seven kinds of feeling in which people respond to things can be summarized as “likes and dislikes.” The mind responds to things through feelings; based on the mind of benevolence and righteousness or feelings of compassion, the expression of feelings can conform to the principle of the mean and reach the integration of self and others, and of self and external things. The “relations between the seven kinds of feelings and the Four Commencements,” however, was not developed into a theoretical idea in Confucianism. After Confucius, the relationship between the universality of natural sympathies and the gradation of love for relatives gradually became an important subject in Confucian ideas of benevolence and love. By “refuting Yang Zhu and Mozi,” Mencius systematically expounded on this issue. Love had two ends: self-love and natural sympathies, between which existed the love for relatives. These two ends were not the two extremes of Yang’s self-interest and Mozi’s universal love. Love for relatives not only implied a gradation, but also contained universality and transcendence that came from self-love. Love for relatives, natural sympathies and self-love had a kind of tension and connectivity between two dynamic ends. The Confucian idea of benevolence and love hence demonstrated differences and interconnectivity. An accurate understanding of such “feelings” and “love” is important for us to grasp Confucian thoughts on benevolence and its realization.