价值观的稳定性与可变性

价值观是人们区分好坏、善恶、美丑、损益、是非的信念系统,通常是充满情感的。价值观具有稳定性与可变性的特点。价值观的稳定性表现为:基本价值观具有跨时间的稳定性和跨情境的一致性; 特别是保护性价值观和人生价值观具有较强的稳定性。个人的发展、经历重大事件以及实验干预可导致价值观的改变,可变性主要表现为价值观的重要性发生变化。从我国的实际出发,探讨个人的核心价值观问题、以及价值观研究中国化、价值观研究对价值观教育的启示,乃是我们今后研究的关注点。     

自尊稳定性的认知神经机制

自尊稳定性(自尊在短期内波动的幅度)是一种具有重要心理功能的人格特质, 它既不同于自尊水平, 也区别于情境性自尊, 但在理论和测量上却与后两者具有密不可分的联系。然而, 由于目前人们对于自尊稳定性的认知神经机制知之甚少, 所以并不清楚它与自尊水平在生理机制上的关系是什么, 更不了解它会如何调节情境性自尊。鉴于此, 本研究计划将自尊稳定性、自尊水平和情境性自尊置于整合的认知神经加工模型(神经内分泌-脑-行为)之中, 通过融合心理测量、脑成像与应激诱发等多种技术指标, 力争全方位、多角度揭示自尊稳定性的认知神经机制, 及其与自尊水平、情境性自尊间的区别和联系。     

价值观的神经机制:另一种研究视角

神经机制分析是价值观研究的一种新视角.内稳态机制和情绪反应的固有模式可能体现出价值观的神经生物原型.社会认知神经科学试图从子价值观、价值取向、价值观结构等方面寻找价值观的神经实体证据,也对价值评价、价值决策等相关过程进行了神经活动分析.初步发现了个体价值观与部分脑区活动的相关关系,涉及前额叶-顶叶-颞叶神经网络带的众多大脑结构.未来研究可沿循静态的价值观结构和动态的价值观加工过程两条线路,整合和完善现有分散的神经生理研究,将有助于更系统地理解价值观的神经机制.     

国外自杀素质及其认知神经机制的研究概况

以自杀素质及其认知神经机制为线索,回顾与总结了国外自杀的心理学研究概况,自杀素质主要体现在悲观主义倾向和冲动/攻击特质上,而自杀的认知神经机制主要包括归因模式的改变、情绪和认知调节能力的降低以及自杀行为的实施三个方面,最后提出了对国内研究的启示.     

神经美学：探索审美与大脑的关系

神经美学采用神经科学的技术手段来探索审美的神经机制。本文从审美认知加工过程的角度来探讨审美的心理学原理及其神经机制。回顾了近年来神经美学取得的主要成果, 研究发现与审美加工相关的脑区主要涉及感知觉、运动、情绪以及奖赏等机能系统。神经美学的三个重要研究主题是真与美、离身认知与具身认知以及认知与情绪。未来研究应从时间维度来探讨审美体验的动态性, 从跨艺术形式以及跨文化的视角来探讨审美神经机制的普遍性。     

心理剧中的替身概念:具身模拟的视角

替身技巧是心理剧治疗的核心技巧之一,主张通过对主角的身体模仿来理解主角。具身模拟理论认为,理解是基于镜像神经机制的心理模拟。文章梳理、分析了替身技巧和具身模拟的概念和内含,并将二者相结合,在神经生理的层面上揭示了替身技巧的治疗机制与操作原理,以期通过认知神经研究来考察和解释替身技巧的效能。     

拖延的认知神经机制与基因:行为-脑-基因的多角度研究

拖延是一种普遍存在,具有跨时间和跨情景稳定性的问题行为,严重的拖延甚至会危害到人们的工作、学习及身心健康。鉴于目前对于拖延的认知神经机制仍不清楚,研究模态较为单一,本研究拟从行为-脑-基因的系统研究思路出发,以多模态MRI(Task、Resting、VBM和DTI)为主要技术手段,将HTR2B基因多态性作为突破口,系统考察拖延的认知机制、神经基础和遗传基础,并试图制定拖延的应对与干预方案。研究分为4个部分:(1)从行为上,结合预期恐惧范式和跨期选择范式探索其拖延决策的机制;(2)在神经层面上,采用MRI多模态技术系统考察拖延行为的神经基础;(3)在基因层面上,采用分子遗传学方法,将HTR2B设定为靶基因以深入研究拖延的遗传基础,并考察脑结构和脑功能在基因与行为间的中介作用;(4)最后从行为干预与脑的可塑性的角度,设计拖延的干预方法来改善拖延行为并验证拖延的神经机制。     

宽恕心理的行为测量及认知神经机制

宽恕是一个复杂的心理过程,被认为是对冒犯者的亲社会化转变的过程,包括认知、情绪、动机和行为上的改变。本文回顾了国内外宽恕心理的行为测量范式和认知神经机制研究相关的成果,发现宽恕心理的行为测量范式能够揭示宽恕相关的心理过程;认知神经机制的研究发现宽恕心理过程主要涉及负责社会认知、共情和认知控制等功能的脑区。未来的研究应关注宽恕心理行为测量范式的有效性和揭示内容的一致性、宽恕心理的认知和脑神经基础。     

拖延行为的认知神经模型及干预

拖延是一种普遍存在, 具有跨时间和跨情景稳定性的问题行为, 它会危害到人们的学习、工作和身心健康。然而目前拖延行为的认知神经机制仍不清晰, 且缺乏因果证据, 本项目拟从拖延的时间决策模型和三重神经结构网络模型出发, 构建拖延的认知神经模型, 并利用认知干预和神经调控技术, 检验和完善拖延行为的认知神经模型, 进而试图制定拖延的精准化干预方案。本项目分为3部分：(1)从记录与关联研究的视角出发, 利用多模态神经影像方法系统考察拖延行为的认知神经机制; (2)从因果/近因果研究视角出发, 利用认知干预和神经调控技术, 验证并完善拖延的认知神经模型; (3)从临床应用的视角出发, 建立拖延行为障碍的临床筛查-诊断体系, 并制定精准化治疗方案。本项目的开展对于探明拖延产生的核心认知神经机制具有十分重要的理论贡献, 同时对于拖延行为的有效预防和精准治疗具有重要的现实意义。     

重复经颅磁刺激对轻度认知障碍的干预效果

轻度认知障碍(mild cognitive impairment, MCI)是介于正常认知老化和老年痴呆的中间状态, 目前尚无有效的药物治疗方案。重复经颅磁刺激(repetitive transcranial magnetic stimulation, rTMS)可通过诱导突触可塑性的改变来改善大脑的认知功能。对rTMS干预MCI认知功能的有效性及神经机制进行分析。未来研究应优化定位手段, 延长对干预效果的随访评估, 考察不同刺激参数和刺激靶区对干预有效性的影响, 以及结合脑成像技术来探索rTMS的干预机制。     

Neural and cognitive plasticity: from maps to minds

Some species and individuals are able to learn cognitive skills more flexibly than others. Learning experiences and cortical function are known to contribute to such differences, but the specific factors that determine an organism's intellectual capacities remain unclear. Here, an integrative framework is presented suggesting that variability in cognitive plasticity reflects neural constraints on the precision and extent of an organism's stimulus representations. Specifically, it is hypothesized that cognitive plasticity depends on the number and diversity of cortical modules that an organism has available as well as the brain's capacity to flexibly reconfigure and customize networks of these modules. The author relates this framework to past proposals on the neural mechanisms of intelligence, including (a) the relationship between brain size and intellectual capacity; (b) the role of prefrontal cortex in cognitive control and the maintenance of stimulus representations; and (c) the impact of neural plasticity and efficiency on the acquisition and performance of cognitive skills. The proposed framework provides a unified account of variability in cognitive plasticity as a function of species, age, and individual, and it makes specific predictions about how manipulations of cortical structure and function will impact intellectual capacity.     

Epistemic values and the value of learning

In addition to purely practical values, there are cognitive values which figure in scientific deliberations. One way of introducing cognitive values is to consider the cognitive value that accrues to the act of accepting a hypothesis. Although such values may have a role to play in the matter of theory acceptance, this does not exhaust their significance in scientific decision-making. This paper makes a plea for the consideration of epistemic value??cognitive value that attaches to a state of belief. I defend the notion of cognitive epistemic value against criticisms that have been raised against it. A stability requirement for epistemic value-functions is argued for on the basis of considerations of diachronic coherence. This requirement is sufficient for proving the Value of Learning Theorem, which says that the expected utility of cost-free learning cannot be negative. Under the assumption of stability, the expected cognitive epistemic value of undergoing a learning experience must also be non-negative.     

The neural correlates of visual self-recognition

This paper presents a review of studies that were aimed at determining which brain regions are recruited during visual self-recognition, with a particular focus on self-face recognition. A complex bilateral network, involving frontal, parietal and occipital areas, appears to be associated with self-face recognition, with a particularly high implication of the right hemisphere. Results indicate that it remains difficult to determine which specific cognitive operation is reflected by each recruited brain area, in part due to the variability of used control stimuli and experimental tasks. A synthesis of the interpretations provided by previous studies is presented. The relevance of using self-recognition as an indicator of self-awareness is discussed. We argue that a major aim of future research in the field should be to identify more clearly the cognitive operations induced by the perception of the self-face, and search for dissociations between neural correlates and cognitive components.     

Computational explorations of the influence of structured knowledge on age-related cognitive decline

Experience in a domain can sometimes offset cognitive declines that occur with aging. Using a series of neural network simulations of learning chess opening positions, the authors investigated how structured knowledge in a distributed representation may influence age-related declines. Aging manipulations implemented as modulations of neural noise showed increased knowledge as being protective of performance on a chess memory span task, whereas changes in neural plasticity and neural loss lead to main effects without interactions and steeper declines for the initially more able. The models could also simulate the increase in variability in older groups.     

Incidental regulation of attraction: The neural basis of the derogation of attractive alternatives in romantic relationships

Although a great deal of research addresses the neural basis of deliberate and intentional emotion-regulation strategies, less attention has been paid to the neural mechanisms involved in implicit forms of emotion regulation. Behavioural research suggests that romantically involved participants implicitly derogate the attractiveness of alternative partners, and the present study sought to examine the neural basis of this effect. Romantically committed participants in the present study were scanned with functional magnetic resonance imaging (fMRI) while indicating whether they would consider each of a series of attractive (or unattractive) opposite-sex others as a hypothetical dating partner both while under cognitive load and no cognitive load. Successful derogation of attractive others during the no cognitive load compared to the cognitive load trials corresponded with increased activation in the ventrolateral prefrontal cortex (VLPFC) and posterior dorsomedial prefrontal cortex (pDMPFC), and decreased activation in the ventral striatum, a pattern similar to those reported in deliberate emotion-regulation studies. Activation in the VLPFC and pDMPFC was not significant in the cognitive load condition, indicating that while the derogation effect may be implicit, it nonetheless requires cognitive resources. Additionally, activation in the right VLPFC correlated with participants' level of relationship investment. These findings suggest that the RVLPFC may play a particularly important role in implicitly regulating the emotions that threaten the stability of a romantic relationship.     

Incidental regulation of attraction: the neural basis of the derogation of attractive alternatives in romantic relationships

Although a great deal of research addresses the neural basis of deliberate and intentional emotion-regulation strategies, less attention has been paid to the neural mechanisms involved in implicit forms of emotion regulation. Behavioural research suggests that romantically involved participants implicitly derogate the attractiveness of alternative partners, and the present study sought to examine the neural basis of this effect. Romantically committed participants in the present study were scanned with functional magnetic resonance imaging (fMRI) while indicating whether they would consider each of a series of attractive (or unattractive) opposite-sex others as a hypothetical dating partner both while under cognitive load and no cognitive load. Successful derogation of attractive others during the no cognitive load compared to the cognitive load trials corresponded with increased activation in the ventrolateral prefrontal cortex (VLPFC) and posterior dorsomedial prefrontal cortex (pDMPFC), and decreased activation in the ventral striatum, a pattern similar to those reported in deliberate emotion-regulation studies. Activation in the VLPFC and pDMPFC was not significant in the cognitive load condition, indicating that while the derogation effect may be implicit, it nonetheless requires cognitive resources. Additionally, activation in the right VLPFC correlated with participants' level of relationship investment. These findings suggest that the RVLPFC may play a particularly important role in implicitly regulating the emotions that threaten the stability of a romantic relationship.     

Functional magnetic resonance imaging: basic principles of and application to developmental science

Functional magnetic resonance imaging (fMRI) has quickly become the preferred technique for imaging normal brain activity, especially in the typically developing child. This technique takes advantage of specific magnetic properties and physiological processes to generate images of brain activity. These images can be interpreted as a function of group or individual based differences to explore developmental patterns and/or cognitive abilities. In this paper we present an overview of the basic principles of fMRI and a discussion of what is currently known about the physiological bases of the resulting signal. We also report findings from developmental fMRI studies that examine the development of cognitive and neural systems underlying attention and memory. Behavioral performance and age‐related neural changes are examined independently in an attempt to disentangle developmental differences from individual variability in performance.     

文化差异视角下个体合作行为的产生、影响机制建构及认知神经基础

合作行为是指个体或群体之间为了实现共同的目标和利益而进行的协同行为或意向。本文基于行为-认知-大脑的三重映射关系,对合作行为的文化差异性进行了深入阐释,并在此基础上构建了文化影响合作行为的社会认知中介模型;未来研究可从实证视角对合作行为文化差异的社会认知内容、认知神经机制等方面进行验证、挖掘和改善。     

Sorting food labels and describing properties of categories: stability of results between and within subjects

The purpose of this research is to improve understanding of the consistency of the categorization process in cognitive psychology. To investigate the temporal stability of the categorization process between and within subjects, 100 participants (M = 22.1 yr., SD = 2.1) were required to sort 65 food labels into groups and to explain their grouping. The sorting and property generation of food labels were compared by conducting two sessions (with a 15-day interval) to assess within-subject variability. Two groups of participants were compared to assess between-subjects variability. The results from the sorting task showed excellent stability between and within subjects. Conversely, the property generation task showed high variability. It is concluded that the tasks involved different types of knowledge. The sorting task appeared to generate good agreement and to involve more stable knowledge. The task of producing properties may involve other mechanisms. This paper discusses the results in light of cognitive and pragmatic theories.