错觉研究:从狭义到广义的演进

心理学家对错觉现象的关注由来已久,以往的错觉研究大部分关注与知觉过程相联系的错觉。近十几年来,当代错觉研究呈现出新的热点,并从狭义向广义演进。这一研究对象扩展的基础,是错觉现象的本质特征,即认知过程的一致性偏差。广义错觉研究的对象涉及知觉、记忆、思维、推理等各种心理过程。     

The Average Fuel‐Efficiency Fallacy: Overestimation of Average Fuel Efficiency and How It Can Lead to Biased Decisions

People falsely believe that equal increases in vehicles' fuel efficiency (e.g., miles per gallon (MPG)) will result in equal fuel savings. Whereas previous research on this “MPG illusion” has focused on people's biased choices of upgrading vehicle models, it has not examined a more common situation, namely, estimating a given vehicle's fuel efficiency based on the average of two efficiency values (e.g., in the city and on highways). In such situations, we find an additional bias in people's judgment and choice, the average fuel‐efficiency fallacy, in which people falsely believe that the combined fuel efficiency (e.g., of city and highway MPG) is a simple—instead of a harmonic—mean of the two values. Owing to the curvilinear relationship between fuel efficiency and fuel consumption, the combined fuel‐efficiency value would always be lower than the simple average, resulting in consistent overestimations of the actual fuel efficiency. In a series of studies, we demonstrate how this fallacy of overestimating combined fuel efficiency leads to suboptimal choices between vehicles. In addition, we find that the solution prescribed for the MPG illusion—using gallons per 100 miles—does reduce, but not eliminate, the average fuel‐efficiency fallacy, and that comprehension of the gallons per 100 miles measure is a precursory condition for this nudge to have any effect. Copyright © 2016 John Wiley & Sons, Ltd.     

Zollner错觉的阈限测定

该研究选取大学生为被试,采用最小变化法,分别测量了干扰线对数、干扰线与主线之间的间隔、主线之间的间隔等三个变量导致Z?llner错觉产生的绝对阈限。每个变量中主线与水平面的夹角分为45°和90°两种条件。结果发现,若要产生Z?llner错觉：1）干扰线对数的阈限分别为5对、7对;2）干扰线与主线之间的间隔阈限分别为6.58像素、4.48像素,3）干扰线之间的间隔阈限分别为124.44像素、131.73像素。此外还发现：4）在Z?llner错觉形成的影响因素中,从大到小依次是：干扰线对数、主线之间的间隔、干扰线与主线之间的间隔;5）45°情况下比90°情况下更容易产生错觉;6）在Z?llner错觉知觉中,期望误差严重。     

积极幻想研究述评

积极幻想是当代积极心理学的一个研究主题, 它是指个体在生活中或在面临威胁性情境、压力性事件时所做出的一种积极心理适应。积极幻想的内涵较为丰富, 其三种主要表现形式分别为：不切实际的自我积极看法、夸大个人对现实生活的控制感、对未来的盲目乐观。积极幻想的研究方法主要有问卷法和实验法, 目前心理学界对积极幻想的研究主要涉及心理健康、心理资源、恋爱关系以及跨文化等领域。     

Inverse effectiveness, multisensory integration, and the bodily self: Some statistical considerations

A recent report in Consciousness and Cognition provided evidence from a study of the rubber hand illusion (RHI) that supports the multisensory principle of inverse effectiveness (PoIE). I describe two methods of assessing the principle of inverse effectiveness (‘a priori’ and ‘post-hoc’), and discuss how the post-hoc method is affected by the statistical artefact of ‘regression towards the mean’. I identify several cases where this artefact may have affected particular conclusions about the PoIE, and relate these to the historical origins of ‘regression towards the mean’. Although the conclusions of the recent report may not have been grossly affected, some of the inferential statistics were almost certainly biased by the methods used. I conclude that, unless such artefacts are fully dealt with in the future, and unless the statistical methods for assessing the PoIE evolve, strong evidence in support of the PoIE will remain lacking.     

ALTERING RESPONSE CHAINS IN PATHOLOGICAL GAMBLERS USING A RESPONSE‐COST PROCEDURE

Two pathological gamblers could choose between emitting or having the dealer emit the response options when playing each of three casino games. A response‐cost procedure was introduced in a multiple baseline design across games in which the participant had to pay to perform the responses himself, which was somewhat effective at reducing many of the initial irrational choices made by each participant.     

The man who lost his body: Suboptimal multisensory integration yields body awareness problems after a right temporoparietal brain tumour

Reports on patients who lack ownership over their entire body are extremely rare. Here, we present patient SA who suffered from complete body disownership after a tumour resection in the right temporoparietal cortex. Neuropsychological assessment disclosed selective bilateral ownership problems, despite intact primary visual and somatosensory senses. SA's disownership seems to stem from a suboptimal multimodal integration, as shown by the rubber hand illusion and the beneficial effect during and after simple exercises aiming at multisensory recalibration.     

Mirrors and Misleading Appearances

Although philosophers have often insisted that specular perception is illusory or erroneous in nature, few have stressed the reliability and indispensability of mirrors as optical instruments. The main goal of this paper is to explain how mirrors can contribute to knowledge and at the same time be a source of systematic errors and misleading appearances. To resolve this apparent paradox, I argue that mirrors do not generate perceptual illusions or misperceptions, by defending a view of mirrors as transparent and invisible visual media. I then consider the reasons for which mirrors are said to be misleading. Contrary to the illusory account, I defend a nonperceptual approach to the errors attributable to mirrors, which analyses the kind of errors generated by the use of mirrors in terms of false judgments. I further show that a nonperceptual view of errors extends to all of the cases in which a sensorimotor adaptation is required, such as perception through magnifying or inversing lenses.     

积极错觉:基于进化论和社会互动的视角

积极错觉是积极心理学的一个重要研究领域,对于维持个体的身心健康至关重要。本文主要从进化论和社会互动论的视角对积极错觉进行阐述。从进化论的视角看,积极错觉有助于身心健康和认知适应; 从社会互动论视角看,积极错觉有助于维持良好的社会关系。未来的研究需要深化积极错觉的跨文化研究,重视对特殊群体积极错觉的研究,并加强积极错觉的应用研究和脑机制研究。     

赌博游戏中的near-miss效应

near-miss效应是指在赌博中, 与一般的输钱和赢钱相比, “几乎赢(near-miss)”的输钱会诱发个体更高的生理唤醒和更强的赌博动机, 从而导致个体持续赌博的一种现象, 是导致赌博成瘾的主要诱因之一。针对这种现象的研究范式大致有三种：老虎机/类老虎机任务、轮盘任务和刮刮乐彩票任务。这种现象的理论解释目前主要有认知曲解假说、控制幻觉理论和受挫假说。near-miss效应的脑机制和病理研究才刚刚起步, 所涉及到的脑功能区域主要包括脑岛、腹侧纹状体等。未来的研究应在near-miss效应发生机制的理论模型建构、研究范式多样化、研究技术多模态化、病理机制和临床干预等方面进一步展开。