预测加工：走出两代认知科学的历史僵局

表征-计算观与具身行动观对认知的本质几乎做了截然相反的强调。近年来,预测加工理论的发展为统一两代认知科学提供了契机。预测加工是层级预测加工与主动预测加工这两大理论部件的合称,前一部件主要继承了第一代认知科学中的层级计算加工进路,后一部件则发扬了第二代认知科学中与行动有关的理论,这两大理论部件被视为同一个统一整合理论的两个不同方面。在当代,预测加工被认为有望成为未来认知科学的新范式。     

The influence of time units on the flexibility of the spatial numerical association of response codes effect

The Spatial Numerical/Temporal Association of Response Codes (SNARC/STEARC) effects are considered evidence of the association between number or time and space, respectively. As the SNARC effect was proposed by Dehaene, Bossini, and Giraux in 1993, several studies have suggested that different tasks and cultural factors can affect the flexibility of the SNARC effect. This study explored the influence of time units on the flexibility of the SNARC effect via materials with Arabic numbers, which were suffixed with time units and subjected to magnitude comparison tasks. Experiment 1 replicated the SNARC effect for numbers and the STEARC effect for time units. Experiment 2 explored the flexibility of the SNARC effect when numbers were attached to time units, which either conflicted with the numerical magnitude or in which the time units were the same or different. Experiment 3 explored whether the SNARC effect of numbers was stable when numbers were near the transition of two adjacent time units. The results indicate that the SNARC effect was flexible when the numbers were suffixed with time units: Time units influenced the direction of the SNARC effect in a way which could not be accounted for by the mathematical differences between the time units and numbers. This suggests that the SNARC effect is not obligatory and can be easily adapted or inhibited based on the current context.     

《历世真仙体道通鉴》所见《真诰》校读记

《历世真仙体道通鉴》各卷所见《真诰》经与《正统道藏》本《真诰》对读,校正《正统道藏》本不少错讹,亦得窥见赵道一编撰之例。     

工作记忆刷新训练改善抑郁倾向大学生情绪调节能力的HRV证据

根据流调中心用抑郁量表(CES-D)和贝克抑郁量表(BDI-II-C)的得分情况招募健康被试20例, 抑郁倾向被试40例, 以自愿参加的分组方式将抑郁倾向被试分为工作记忆刷新训练组和对照组, 每组20例。对训练组进行为期20天的工作记忆刷新训练, 对照组不做处理。记录各组被试在前后测的刷新功能以及在情绪调节任务中量表的得分情况, 并收集各组被试在5种实验条件下的心率变异性(HRV)的频域指标值, 结果发现：前测时抑郁倾向个体的HF-HRV显著低于健康个体的平均水平。经过工作记忆训练, 后测的抑郁倾向训练组在情绪调节任务中的HF-HRV水平有显著的提高, 贴近健康对照组的水平, 并与抑郁倾向对照组分离。研究表明, 工作记忆刷新训练能够使抑郁倾向大学生的HRV活动更接近健康被试的HRV活动, 表明抑郁倾向大学生的情绪调节能力得到了改善。     

Holistic modeling: an objection to Weisberg’s weighted feature-matching account

Synthese - Michael Weisberg’s account of scientific models concentrates on the ways in which models are similar to their targets. He intends not merely to explain what similarity consists in,...     

Learning in honey bees with brain lesions: how partial mushroom-body ablations affect sucrose responsiveness and tactile antennal learning

Honey bees are ideal organisms for studying associative learning, because they can rapidly learn different sensory cues, even under laboratory conditions. Classical olfactory learning experiments have shown that the mushroom bodies (MBs), a prominent neuropil of the central nervous system of the bee, are involved in olfactory learning and memory formation. We tested whether the MBs are also involved in tactile antennal learning. As in olfactory learning, bees use the antennae during tactile learning to sense tactile cues. We produced specific MB ablations by applying the mitotic blocker hydroxyurea (HU). In Drosophila, HU-induced brain lesions of the MBs strongly impaired olfactory memory formation. As treatment with HU might also interfere with the processing of the reward stimulus, sucrose, we measured the responsiveness to sucrose stimuli in these bees. Treatment with HU led to partial ablations of the median MB sub-units on one or both sides of the brain. We analysed side-specific effects in double-blind tests, testing sucrose responsiveness separately for each antenna, and conditioning first one antenna and then the other in a reversal learning assay. HU-treated bees without detectable ablations were less responsive to sucrose and had a poorer learning performance than untreated controls. Partial MB ablation did not additionally affect responsiveness to sucrose or tactile antennal learning. Interestingly, bees with bilateral MB ablations did not differ from untreated controls in their learning performance during the first learning phase. During reversal learning, acquisition in these bees was significantly lower than that in untreated controls. It is concluded that HU treatment affects sucrose responsiveness and tactile learning even without detectable ablation of neuropils. The effects of MB ablations on tactile learning are not side-specific and not correlated with the volume of the ablated neuropil. Accepted after revision: 15 January 2001 ❚ Electronic Publication     

Educational and Vocational Aspirations of Minority and Female Students: A Longitudinal Study

This study examined the relative importance of school, family, personal/psychological, race, and sex variables in predicting educational and vocational aspirations. A nationally representative sample of 10th‐grade students was followed through 2 years beyond their high school. Results suggested that sex and race significantly predicted educational and vocational aspirations of students. The educational aspiration model was shown to be more robust than the occupational aspiration model. Overall, students showed increases in educational and occupational aspirations, regardless of sex and race. Compared with other groups, Asian Americans had the greatest increase in educational aspirations. Female students, on the average, had higher educational and vocational aspirations.     

古代预测文化对科学认知的负面影响

我国古代预测文化观念大多属于假言推理的预 卜学,谈不上真正意义上的预测科学。但是其预测 的文化观念深刻地影响着一部分人的社会实践活 动,使一些人当作认知事物的演算工具,试图从中 寻找自然现象和社会现象的未知迹象。由于其预测 观念不是建立在科学的知识体系基础上,不能经过 实践反复检验,只是用偶然性判断社会现象的必然 性,用单一模式去解释错综复杂的社会现象,难免