Knowing failably and Moorean assertions

Knowledge-fallibilism is a species of a genus that I call knowledge-failabilism. Each is a theory of knowledge's nature. One apparent challenge to knowledge-failabilism's truth is the prima facie absurdity of Moorean assertions like ‘It's raining but I do not believe that it is.’ Does each such assertion convey an implicit and unfortunate contrast, even a contradiction? I argue that this Untenable Contrast analysis fails: no such contrast is present within the speaker's perspective at the pertinent time.     

唤醒定义探析及其认知神经生理基础

唤醒是衡量机体清醒程度和做出反应前准备程度的指标, 其水平可从睡眠到觉醒的连续体上变化, 具有独特的生理机制与神经回路。由于唤醒与情绪关联密切, 唤醒度这个概念常被认为等同于情绪强度, 但情绪强度实际上是唤醒和效价的和向量。受到Lazarus提出的“刺激”定义情绪思想的启发, 对唤醒的内含和心理机制进行了探析, 发现对不符合预期刺激出现的紧急准备是唤醒系统的主要功能, 预期性相关机制是唤醒的重要认知加工机制。其它因素(刺激属性、个体差异等)可能存在以下影响唤醒的原因：改变处理刺激时所需的资源量、影响预期机制。未来研究可从心理唤醒与生理唤醒的关系、唤醒的测量方法、唤醒度与情绪强度的关系、人类临床精神疾病的唤醒特征等角度推动唤醒的基础和应用研究。     

Quality of life

This article gives an overview of the field of psychotherapy in relation to other relevant fields such as body-therapy and spiritual counselling. It is shown how psychotherapy defines itself in isolation from or in comparison with its sister disciplines. Political boundaries between professions are described. The field of transformation is shown to be encompassing not only the health professions, the psychotherapy professions, and the professions dealing with spiritual emergency, but it can also be seen to contain intra-personal, interpersonal and extra-personal (social) dimensions.     

Children's Representation of Long Duration: When Memory and Attention Meet in Processing Time

The concepts of the memory and attentional models were examined in children's and adults’ time perception in a long duration. One hundred twenty-one children in preschool through Grade 2 and 29 adults for Study 1 and 93 second-, fourth-, and sixth-grade students and 40 adults for Study 2 judged durations of tasks that varied in interest levels and cognitive demands. In Study 1, children overestimated but adults underestimated the movie that they found to be interesting. However, in Study 2, both children and adults consistently overestimated the duration of puzzles they found to be interesting. In a long duration, the findings were more in line with the memory model than with the attention model. A qualitative change also emerged in middle childhood in the way children kept track of time; this difference may influence the developing perception of long duration in children's representation. Implications of the findings are further discussed in examining the perception of long duration.     

主观时间流逝速度调节情绪效价的特异性

本研究在中国情绪图片系统中随机选取200张情绪图片,并在不同的主观时间流逝速度下,对其进行效价和唤醒度评分,探讨主观时间流逝速度对不同的情绪维度(效价和唤醒度)以及情绪的不同水平的调节效应是否一致。研究结果表明,主观时间流逝速度增加时,人们对中性和正性情绪图片的评价更加积极,但主观时间流逝速度不能调节人们对负性情绪图片的评价,也不能调节人们的唤醒水平。结果提示"时间飞逝时,我更快乐"效应具有效价特异性。     

Public and private heart rate feedback in social phobia: a manipulation of anxiety visibility

According to cognitive behavioural models of social phobia, bodily symptoms are the main source of information concerning social evaluation for social phobics. Experience and perception of bodily symptoms therefore play an important role in social anxiety. In this study we evaluated the effects of anxiety visibility on patients and controls using feedback of veridical heart sounds. A total of 32 social phobics and 32 controls were asked twice to sit in a chair and appear relaxed while being evaluated. Half of the participants heard their heart sounds first via headphones and then via loudspeakers which were also audible to observers. The presentation order of the heart sound was reversed for the other half of the subjects. Social phobics reported substantially more anxiety than controls. Both groups showed habituation in heart rate from the first to the second presentation, and both groups reported perception of a higher heart rate, but only social phobics reported significantly more anxiety and were more worried about their heart rates in the public than in the private condition. These effects were in excess of actual heart rate differences. In conclusion, social phobics worried about the broadcast of a bodily anxiety symptom, whereas controls did not. Information about arousal made public has a strong potential to increase anxiety levels in social phobics.     

Scared stiff: The influence of anxiety on the perception of action capabilities

Influences on the perception of affordances (i.e., opportunities for actions) have been primarily studied by manipulating the functional morphology of the body. However, affordances are not just determined by the functional morphology of the perceiver, but also by the physiological state of the perceiver. States of anxiety have been shown to lead to marked changes in individuals’ physiological state and their behaviour. To assess the influence of emotional state on affordance perception, the perception of action capabilities in near space was examined after participants completed an anxiety-provoking task. Anxiety was induced immediately prior to tasks that assessed participants' perceived reaching ability in Experiment 1, grasping ability in Experiment 2, and the ability to pass their hands through apertures in Experiment 3. Results indicated that those participants who experienced changes in anxiety underestimated their reaching, grasping, and passing ability compared to non-anxious participants. In other words, anxious participants were more conservative in their estimations of their action capabilities. These results suggest that anxiety influences the perception for affordances in near space and are consistent with the notion that anxiety induces withdrawal behaviours.     

语言的群体间偏差研究

个体在用语言来描述他人的行为时,会因为描述对象的群体种类不同而有偏差,具体表现为在描述群体内成员的积极行为和群体外成员的负向行为时,会使用较高抽象水平的词;在描述群体外成员的积极行为和群体内成员的负向行为时,会使用较低抽象水平的词。这种抽象水平的差异由语言范畴模型来具体表明。Maass等人把这种描述上的偏差命名为语言的群体间偏差。并认为在这一现象下有两种机制：动机机制和认知机制,研究表明认知机制能解释大部分语言的群体间偏差现象,而动机机制会在群体内形象受到威胁时发挥作用。