Statistical analysis of timing errors.

Human rhythmic activities are variable. Cycle-to-cycle fluctuations form the behavioral observable. Traditional analysis focuses on statistical measures such as mean and variance. In this article we show that, by treating the fluctuations as a time series, one can apply techniques such as power spectra and rescaled range analysis to gain insight into the mechanisms underlying the remarkable abilities of humans to perform a variety of rhythmic movements, from maintaining memorized temporal patterns to anticipating and timing their movements to predictable sensory stimuli.     

When negative evidence increases confidence: change in belief after hearing two sides of a dispute

Four experiments examined change in confidence after hearing two sides of a dispute. The results showed that a case independently judged to weakly support one side often increased confidence that the opposing side was correct. Furthermore, the stronger the first case, the more likely a subsequent weak case had a reverse impact. Traditional belief‐updating models, which tend to focus on change in belief after individual pieces of evidence rather than entire cases, cannot account for these results, and a model that can account for them is introduced. In the new model, case strength is evaluated with respect to a relatively demanding (and malleable) reference point. A weak case can fall below this demanding reference point, resulting in a reverse impact on confidence. Cases must exceed relatively high strength thresholds in order to have their intended impact because they are expected to be biased summaries of evidence. When it is clear that a weak case is unbiased, it affects confidence in the intended direction. Copyright © 2002 John Wiley & Sons, Ltd.     

The ‘Platforms’ for Comparing Incommensurable Taxonomies: A Cognitive-Historical Analysis

This paper examines taxonomy comparison from a cognitive perspective. Arguments are developed by drawing on the results of cognitive psychology, which reveal the cognitive mechanisms behind the practice of taxonomy comparison. The taxonomic change in 19th-century ornithology is also used to uncover the historical practice that ornithologists employed in the revision of the classification of birds. On the basis of cognitive and historical analyses, I argue that incommensurable taxonomies can be compared rationally. Using a frame model to represent taxonomy, I show how rational comparisons were achieved in the historical case through compatible contrast sets and attribute lists. Through analyzing the cognitive processes of classification and concept representation, I further explain how rival taxonomies in the historical case could be rationally compared on ‘platforms’ rooted in such cognitive mechanisms as relational assumptions and preferences for body parts in conceptual processing. This revised version was published online in August 2006 with corrections to the Cover Date.     

Technological Knowledge among Non-Literate Ethiopian Adults in Israel

Ethiopian Jewish immigrants in Israel are one of the most ancient communities in the world, one that has been detached from the known Jewish world for about 2,500 years. Throughout this very long period of isolation, the Ethiopian Jewish community maintained Jewish tradition and dreamed over the centuries to unite with the rest of the Jewish world and immigrate to the Jewish state—Israel. But this transition occurred within a short time from an agrarian society in Ethiopia (traditional culture) with an oral culture to a knowledge society in Israel (modern culture) with a written culture. Most studies that examine cultural transition focus on anthropological, sociological, and cultural aspects; but there are nearly no studies that examine the technological knowledge of non-literate populations. The purpose of this study is to examine and characterize technological knowledge among this population—the case of Ethiopian non-literate immigrants in Israel. The study involved in-depth interviews to examine technological knowledge through using technological appliances in their everyday life, assembly of two simple technological systems, and a home technology profile compared to the general population in Israel. Participants included 50 non-literate Ethiopian immigrants between the ages of 40–60. The results of our study are surprising in that we have shown that non-literate immigrants adapt to a technology-rich environment at an average degree with respect to the general population in Israel. Also, comparing technological knowledge between traditional and modern cultures shows participants’ wide range of knowledge without ability to read and write. Illiteracy does not preclude the development of knowledge in general, technological knowledge particularly, and does not prevent non-literate populations from acquiring knowledge in a new environment.     

文化模式中的宗教

伴随文化学、人类学、民俗学、宗教学、宗教社会学、宗教历史学等新兴交叉学科的诞生,对宗教的研究和把握已经走出原有的神学和宗教哲学视域,人们开始自觉地把宗教现象置于人的文化世界和现实生活世界之中加以把握,并积累了大量有价值的宗教问题的研究成果,这些理论成果为我们揭开许多历史之谜和破解各种关于宗教的神话提供了有益的启示.但是,宗教作为一种极为重要的文化形式在人类生活的自觉文化模式中究竟扮演着什么样的角色还不甚清晰,需要从理论上加以探讨.本文力求从人的生存活动和人的本性等维度探讨宗教的地位和价值,进而探讨宗教在文化模式的作用机制.     

老年人社会适应性与主观幸福感的结构关系

该研究通过编制适应老年人的社会适应性与主观幸福感问卷,探讨了老年人社会适应性与主观幸福感的结构关系。结果表明,问卷具有良好的结构效度和内部一致性信度,人际交往适应性和角色转换适应性对主观幸福感各维度具有显著的预测价值,生活自理适应性对积极情感具有显著预测作用,但预测力不如人际交往适应性和角色转换适应性,而社会整体变化适应性对主观幸福感不存在预测的价值。地区差异对老年人社会适应性和主观幸福感结构预测关系存在显著的调节效应。     

Who I am and how I think: The impact of self‐construal on the roles of internal and external reference prices in price evaluations

Drawing from self-construal studies on cognitive styles as well as reference price literature, this research investigates the impact of independent versus interdependent self-construal on consumers' use of internal reference prices (IRPs) and external reference prices (ERPs) during price evaluations. Three experiments reveal that IRPs have a larger impact on price evaluations for participants who are primed with an independent (vs. interdependent) self-construal, whereas ERPs have a larger impact for participants who are primed with an interdependent (vs. independent) self-construal. The differential impact of self-construal on the use of IRPs and ERPs seems to be mediated by a generalized, perceived sense of connectedness/separateness. Implications on reference price research, self-construal and cognitive styles are discussed.     

Sensory memory consolidation observed: Increased specificity of detail over days

Memories are usually multidimensional, including contents such as sensory details, motivational state and emotional overtones. Memory contents generally change over time, most often reported as a loss in the specificity of detail. To study the temporal changes in the sensory contents of associative memory without motivational and emotional contents, we induced memory for acoustic frequency by pairing a tone with stimulation of the cholinergic nucleus basalis. Adult male rats were first tested for behavioral responses (disruption of ongoing respiration) to tones (1–15 kHz), yielding pre-training behavioral frequency generalization gradients (BFGG). They next received three days of training consisting of a conditioned stimulus (CS) tone (8.00 kHz, 70 dB, 2 s) either Paired (n = 5) or Unpaired (n = 5) with weak electrical stimulation (～48 μA) of the nucleus basalis (100 Hz, 0.2 s, co-terminating with CS offset). Testing for behavioral memory was performed by obtaining post-training BFGGs at two intervals, 24 and 96 h after training. At 24 h post-training, the Paired group exhibited associative behavioral memory manifested by significantly larger responses to tone than the Unpaired group. However, they exhibited no specificity in memory for the frequency of the tonal CS, as indexed by a flat BFGG. In contrast, after 96 h post-training the Paired group did exhibit specificity of memory as revealed by tuned BFGGs with a peak at the CS-band of frequencies. This increased detail of memory developed due to a loss of response to lower and higher frequency side-bands, without any change in the absolute magnitude of response to CS-band frequencies. These findings indicate that the sensory contents of associative memory can be revealed to become more specific, through temporal consolidation in the absence of non-sensory factors such as motivation and emotion.     

Behavioral memory induced by stimulation of the nucleus basalis: Effects of contingency reversal

Specific behavioral associative memory induced by stimulation of the cortically-projecting cholinergic nucleus basalis (NB) is dependent on intrinsic acetylcholine and shares with natural memory such features as associativity, specificity, rapid formation, consolidation and long-term retention. Herein, we examined extinction and the effects of stimulus pre-exposure. Two groups of adult male rats (n = 4 each) were first tested for behavioral responses (disruption of ongoing respiration) to tones (1–15 kHz), constituting a pre-training behavioral frequency generalization gradient (BFGG). They next received a first session of training, 200 trials of a tone (8.00 kHz, 70 dB, 2 s) either paired with electrical stimulation of the NB (100 Hz, 0.2 s, ～67 μA, NBstm) (group IP) or unpaired (group IU). Twenty-four hours later, they were tested for behavioral memory by obtaining post-training BFGGs. Then the contingencies were reversed yet another 24 h later; the IP group received tone and NBstm unpaired and the IU group received them paired. A final set of generalization gradients was obtained the next day. All stimuli were presented with subjects under state control indexed by regular respiration. Tested 24 h post-initial training, the IP group developed specific associative behavioral memory indicated by increased responses only to CS-band frequencies, while the IU group did not. After subsequent training with unpaired stimuli, the IP group exhibited experimental extinction. Furthermore, after initial exposure to the CS and NBstm unpaired, the IU group exhibited a tendency toward reduced conditioning to CS/NBstm pairing and a significant increase in latency of conditioned responses. The present findings provide additional support for the hypothesis that engagement of the NB is sufficient to induce natural associative memory and suggest that activation of the NB may be a normal component in the formation of natural associative memory.     

测验方式对内隐规则提取的影响

研究以异或规则为实验材料,在弱化相邻组块和样例相似性的条件下,采用单因素(测验任务:分类测验、再认测验和预测测验)的实验设计探讨内隐知识的内容以及测验方式对内隐规则提取的影响.结果表明:(1)异或规则的内隐学习效应发生;(2)内隐规则的提取不受测验方式的影响,在内隐规则的提取时表现出一定的稳定性和抗干扰性.