QUANTUM AND CONSCIOUSNESS: IN SEARCH OF A NEW PARADIGM

Abstract. Two fundamental issues raised by Lothar Schäfer are considered: (1) the question of a suitable paradigm within which the findings of quantum physics can be optimally interpreted and (2) the question of the assessment of the presence and importance of mind and consciousness in the universe. In regard to the former, I contend that the ideal of science is to interpret its findings in an optimally consistent and minimally speculative framework. In this context Schäfer's assertion that certain findings in quantum physics (those that relate to virtual states) indicate the presence of mind at the quantum level implies a dualistic and hence unnecessarily speculative assumption. In regard to the assessment of mind and consciousness, a consistent and parsimonious paradigm suggests that mind and consciousness are not part of a chain of events consisting of an admixture of physical and mental events but that physical events form a single, coherent set of events, and mental events another set, with the two sets related, as Teilhard (and a number of other philosophers, including White head) affirmed, as the “within” and the “without” (or the “mental pole” and the “physical pole”) of one and the same fundamental reality. This panpsychist as contrasted with Schäfer's dualist paradigm provides a single self‐consistent framework for the interpretation of quantum (and all natural) events while recognizing the presence of mind in the universe as the least speculative realist implication of our immediate experience of consciousness.     

SOA对Stroop启动效应的影响:行为和ERP研究

在Stroop启动范式中,启动刺激是灰色的色词,目标刺激是颜色块,被试的任务是命名颜色块的颜色。本研究通过行为实验和事件相关电位(ERP)实验的方法,研究SOA(Stimulus Onset Asynchrony)对Stroop启动效应的影响。当SOA为107ms时,在行为数据(反应时)和ERP数据(N300成分)上均表现出明显的启动效应;当SOA为1040ms时,行为上和ERP上的启动效应消失。该结果提示了在Stroop启动效应中,启动刺激对目标刺激的影响很可能是发生在对目标刺激的知觉加工晚期。     

儿童青少年大脑认知功能事件相关电位P_（300）的年龄特征

从发展心理学的角度．对幼儿到大学六个年龄组的儿童青少年进行了事件相关电位Ｐ_（３００）测定．结果发现：反映大脑认知功能的事件相关电位Ｐ_（３００）各成分随着年龄增长而发展的趋势十分明显,从而进一步说明了认知发展的特点与大脑高级神经系统活动功能发展特点的密切关系。     

视觉诱发电位与老年人智力和记忆力相关性研究的多因素逐步回归分析

以年龄在55—79岁的正常人(男40人,女34人,平均年龄64.34±5.67岁)为被试,做视觉诱发电位(VEP),并测试韦氏智力测验的11项分值及智力商数、临床记忆测验的5项分测验及记忆商数、测量血压和头颅CT的脑萎缩程度,根据眼底动脉硬化表现和神经体征确定脑动脉硬化的程度.将上述资料数字化输入计算机进行多因素逐步回归分析。结果表明,智力和记忆力分别与视觉诱发电位的某些指标变量有关,与脑动脉硬化程度有关,与收缩压相关性较大,与舒张压相关性不大,与生理性脑萎缩程度关系不大。还探讨了推测老年人智力和记忆力的计算公式。     

Transfer in discrimination learning: Do children mediate more than adults?

A series of four-dimensional, discrimination-learning problems were presented to second-, sixth-, eighth-, and twelfth-grade students (ages 7, 11, 13, and 17 years, respectively). One pretraining problem, using different dimensions, preceded the four experimental problems; these employed identical dimensions and stimulus values. Solutions were selected without dimensional replacement.Blank-trial probes enabled detection of initial predictions. Results clearly indicated that (1) older subjects made dramatically fewer intradimensional predictions (utilizing the solution dimension from the preceding problem) than did younger subjects, (2) all age groups demonstrated systematic changes over problems; these reflected the specific solution sequence experienced, and (3) there were consistent developmental differences in the speed with which subjects noted and utilized regularities across problems.The pattern of data is not congruent with the expectations of mediation theory. However, it is in accord with the transfer hypothesis, which is a recent extension of hypothesis theory. The transfer hypothesis provides a theoretical framework which suggests when we should observe “mediational” behavior (i.e., intradimensional transfer) and when to expect the inverse.     

内隐自尊的ERP研究

研究使用GNAT范式对内隐自尊的ERP进行研究。结果发现：在自我-积极与自我-消极的感受性指标（d’）和反应时上存在显著差异;他人-积极与他人-消极的差异仅在d＇上;自我-积极与自我-消极的P3在潜伏期和振幅上存在显著差异;他人-积极与他人-消极的P3之间的差异仅表现在潜伏期上。     

内隐记忆和外显记忆的脑机制分离：面孔再认的ERP研究

该研究采用“学习-再认”实验范式探讨面孔领域的内隐记忆与外显记忆之间的关系。学习阶段采用选择性注意任务,让被试加工面孔上的字来控制对面孔的加工水平,再认阶段采用新旧判断,分析再认出旧面孔与新面孔(外显记忆),以及未再认旧面孔与新面孔(内隐记忆)的ERPs差异。结果表明,在单一的再认过程中,外显记忆和内隐记忆的脑机制产生了分离,外显记忆从刺激后400ms开始,主要表现在前额区和额区,而内隐记忆主要表现在刺激后300~500ms的中央区和顶区。该结果与以往在词领域研究中得到的结果极为类似,表明两种记忆类型在各个刺激领域之间存在着共同性     

Psychophysiological evidence of response conflict and strategic control of responses in affective priming

This experiment investigated the role of conflict in the response and evaluative categorization systems in the affective congruency effect using event-related brain potentials (ERPs). Participants completed a primed evaluative decision task in which the proportion of congruent to incongruent trials was manipulated. The size of the affective congruency effect increased along with the proportion of congruent trials. ERP data identified the locus of this effect in the response system: the lateralized readiness potential (LRP) showed that preferential response activation occurred in motor cortex following prime onset, and the fronto-central N2 (conflict monitoring) component indicated that conflict occurred when the response activated by the prime differed from the target response, irrespective of the affective congruency of the prime and target. The extent of this conflict covaried with strategic processing of primes, as participants directed less attention to primes that were likely to elicit conflict. These data support a response conflict account of affective congruency effects in the evaluative decision task and indicate that strategic control of attention is important in determining the extent to which conflict occurs.     

国外器官捐献评估方法介绍

器官移植已成为医学上应用越来越广泛的手段之一。器官移植中器官捐献的分析评估体系作为成熟器官移植系统不可或缺的一部分,能够对器官捐献水平和做出客观的评估,包括捐献潜力,即潜在捐献者率（Potential Donors rate,,PDr）和捐献有效力,即实际捐献者率（Actual Donors rate,ADr）（单位：per million population,pmp）。本文将介绍通过对多国器官捐献评估方法进行分析、总结得出器官捐献中供体评估的主体方法,包括流程、分析方法、适用范围及其积极意义等,希望可以利于我国研究。