Perception and its objects

Early modern empiricists thought that the nature of perceptual experience is given by citing the object presented to the mind in that experience. Hallucination and illusion suggest that this requires untenable mind-dependent objects. Current orthodoxy replaces the appeal to direct objects with the claim that perceptual experience is characterized instead by its representational content. This paper argues that the move to content is problematic, and reclaims the early modern empiricist insight as perfectly consistent, even in cases of illusion, with the realist contention that these direct objects of perception are the persisting mind-independent physical objects we all know and love.

Influence of object size on baseline identification, priming, and explicit memory

We investigated the influence of size on identification, priming, and explicit memory for color photos of common objects. Participants studied objects displayed in small, medium, and large sizes and memory was assessed with both implicit identification and explicit recognition tests. Overall, large objects were easier to identify than small objects and study-to-test changes in object size impeded performance on explicit but not implicit memory tests. In contrast to previous findings with line-drawings of objects but consistent with predictions from the distance-as-filtering hypothesis, we found that study-test size manipulations had large effects on old/new recognition memory test for objects displayed in large size at test but not for objects displayed small or medium at test. Our findings add to the growing body of literature showing that the findings obtained using line-drawings of objects do not necessarily generalize to color photos of common objects. We discuss implications of our findings for theories of object perception, memory, and eyewitness identification accuracy for objects.     

国外乐观研究述评

乐观是积极心理学研究中的核心概念之一。综观国外有关乐观的研究成果,认为乐观是一个与个体的未来定向密切相关的概念,是影响人的身心健康的重要因素。主要介绍了有关乐观的概念,包括乐观的期望-价值模型论,人格特质论和解释风格论;单因素、二因素、三因素和等级模型的心理结构;以及相应的测量方法。在中国文化背景下有关乐观的神经生物学基础的研究和乐观对人的身心健康的影响机制的研究是未来的研究趋向     

Psychological characteristics of women with eating disorders: Permanent or transient features?

The purpose of the study was to make a psychological profile of Danish women with Eating Disorders, who were not currently hospitalized. 75 women between the ages of 19 and 46 years participated. 22 participants suffered from a clinical eating disorder (ED). 20 women had previously suffered from a clinical ED, and 33 women had never suffered from ED. The study included sociodemographic data, problems in relation to eating and weight, exposure to stressful life events, and the following questionnaires: The Eating Disorder Inventory, the Rosenberg Self-Esteem Scale, the Coping Styles Questionnaire, the Perceived Stress Scale, the Defense Style Questionnaire, and the Trauma Symptom Checklist. Psychologically, women with ED differed significantly from women without ED by using a more primitive defense style, perceiving themselves as being more exposed to stress, using more inefficient methods of coping and having lower self-esteem. Unexpectedly, the study also showed that recovery from an ED was resulting in normalisation of both behavioral and psychological characteristics. The implications of these findings are discussed.     

初中生自我概念、应对方式及其关系的研究

以初中197名学生为被试,研究了初中生自我概念、应对方式的特点及关系.研究表明:(1)初中生在一般自我、自我价值感、身体自我方面存在性别差异,在一般自我、学业自我方面存在年级差异,在自我价值感与身体自我概念方面存在性别与年级的交互作用,女生的自我价值感、身体自我概念随年级升高而降低.(2)初中生在应对方式方面的幻想应对上存在性别差异,在求助应对、发泄应对方面存在年级差异.(3)自我概念各因子与问题解决、求助应对存在一定的显著正相关,自我概念越积极,越有可能以问题解决、寻求帮助来应对挫折和烦恼;自我概念部分因子对应对方式的部分因子存在着不同程度的显著回归效应.     

成人依恋风格在信息加工中表现出差异性的神经机制

依恋风格的神经机制研究有助于更深层次理解依恋行为与类型：N1、N200、N400和P300等脑电成份的差异反映了不同依恋风格在编码、提取及注意资源分配上的不同; 额叶皮层、扣带回皮层、颞极、杏仁核、海马等脑区可以反映不同依恋风格在信息加工性质和注意资源分配上的差异。已有研究除安全依恋和非安全依恋策略的有效性在脑成像上的研究与依恋理论一致外, 其余研究还存在争议。未来的研究可深入探究更高质量的依恋测量工具, 依恋风格对内隐刺激加工影响的认知神经机制; 细化依恋风格在信息加工不同阶段的神经活动和脑成像研究; 以及关注依恋风格对信息加工影响差异的脑机制在临床治疗中的运用。     

干预不同个体记忆内容对负性刺激诱发的情绪水平影响*

探讨记忆在情绪发生和调节中的作用,通过干预个体对负性刺激的记忆内容,研究了积极干预、消极干预和不干预三组被试在接受负性刺激后产生的情绪水平差异,以及不同认知方式个体对诱发情绪的不同反应。结果表明,干预类型对负性刺激诱发的消极情绪产生了一定影响:积极干预组和不干预组在消极情绪后测上的得分显著低于消极干预组,积极干预组与不干预组的得分差异不显著。认知方式、性别及干预顺序对诱发情绪的影响不显著。结论:干预记忆内容可影响负性刺激诱发的消极情绪水平,接受积极干预比消极干预产生的消极情绪水平更低,因此对记忆内容的积极干预可有效降低产生的消极情绪水平。     

青少年网络不道德行为与父母教养方式的关系——道德脱离、责任心、道德同一性的中介作用

研究采用问卷法,对764名青少年进行测试,用结构方程模型检验了教养方式、责任心、道德同一性、道德脱离和网络不道德行为之间的关系模型。结果表明,拒绝型教养方式通过责任心、道德同一性和道德脱离的中介来间接影响网络不道德行为。责任心可以直接作用于网络不道德行为,也可以通过道德脱离的中介来影响网络不道德行为。道德同一性只能通过道德脱离来影响不道德行为。     

中职生家长投入与子女学业投入的关系：教养风格的调节作用

中职生的家庭资源是影响其学业发展的重要因素。本研究调查了国内8个省市1185名中职生和高中生,探讨了中职生家长投入的现状特点及其与教养风格、学业投入的关系。结果发现：中职生家长投入水平显著低于高中生家长;家长教养风格（自主支持/控制）调节了家长投入对中职生学业投入的预测作用。在自主支持的教养风格条件下,家长的在家辅导、参与决策能显著预测学生学业投入的水平,而在控制的教养风格条件下则不成立。     

Habit outweighs planning in grasp selection for object manipulation

Object-directed grasping movements are adapted to intended interactions with an object. We address whether adjusting the grasp for object manipulation is controlled habitually, based on past experiences, or by goal-directed planning, based on an evaluation of the expected action outcomes. Therefore, we asked participants to grasp and rotate a dial. In such tasks, participants typically grasp the dial with an excursed, uncomfortable arm posture, which then allows to complete the dial rotation in a comfortable end-state. We extended this task by manipulating the contingency between the orientation of the grasp and the resulting end-state of the arm. A one-step (control) group rotated the dial to a single target. A two-step group rotated the dial to an initial target and then in the opposite direction. A three-step group rotated the dial to the initial target, then in the opposite direction, and then back to the initial target. During practice, the two-step and three-step groups reduced the excursion of their grasps, thus avoiding overly excursed arm postures after the second rotation. When the two-step and three-step groups were asked to execute one-step rotations, their grasps resembled those that were acquired during the two-step and three-step rotations, respectively. However, the carry-over was not complete. This suggests that adjusting grasps for forthcoming object manipulations is controlled by a mixture of habitual and goal-directed processes. In the present experiment, the former contributed approximately twice as much to grasp selection than the latter.