“激将法”会激发还是打击员工?感知能力不被领导信任的“双刃剑”效应

感知能力不被领导信任是信任研究的重要内容。已有研究普遍认为感知不被领导信任会对员工的自我产生不利影响。相反, 传统领导方式“激将法”则认为领导的不信任可以刺激员工展现更好的自我。为了解释上述矛盾, 本研究基于自我评价理论和心理逆反理论, 采用实验研究和多源多时间点问卷调查研究方法, 探讨了感知能力不被领导信任对员工自我的“双刃剑”效应及边界条件。研究结果表明, 当员工感知领导能力较强时, 感知能力不被领导信任会通过降低员工的工作效能感削弱员工的工作努力和绩效表现; 当员工感知领导能力较弱时, 感知能力不被领导信任会通过增强员工证明自我能力动机提升员工的工作努力和绩效表现。     

真实物体搜索中的视角依赖效应:来自眼动的证据

已有研究发现物体识别存在视角依赖效应,那么在真实物体搜索中是否也存在视角依赖效应呢?本研究采用物体阵列搜索任务,通过眼动技术探讨真实物体搜索中的视角依赖效应及其来源。结果发现:(1)图片提示的搜索绩效优于名称提示;(2)以名称提示时,常规视角的搜索绩效高于新异视角,与新异视角相比,以常规视角呈现的目标物体在扫描和确认阶段的注视点数较少且持续时间较短,表现出视角依赖效应;(3)以图片为提示时,搜索绩效与视角无关。由此可见,在以名称提示的物体搜索中,常规视角比新异视角条件下的注意引导更高效,对目标物体的确认也更快,扫描和确认阶段均存在视角依赖效应,支持目标模板的双功能理论。     

语言的隐喻视角下人类认知框架建构

随着以计算机隐喻为核心的第一代认知科学的弊端日益凸显,强调感知体验为认知构建核心作为主流思想的第二代认知科学在近几年获得了迅速发展。语言作为人类联结自身体验和外界事物的桥梁,在个体认知框架建构中意义重大。而人类语言的隐喻认知能力是构成认知系统的核心要素,也是人类思维活动反映抽象概念的重要方式。文章通过对语言的隐喻认知视角下人类认知框架建构机制的探讨,在指出当前研究中存在的缺陷和不足的基础上为将来研究提供相关思路。     

Relationship between job burnout and personal wellness in mental health professionals

This study aimed to determine the nature of the relationship between job burnout and personal wellness among mental health professionals. The authors performed intercorrelations and multivariate multiple regression analyses to identify the relationship between subscales of job burnout and personal wellness. Results showed that all subscales of job burnout, except for the Negative Work Environment subscale, significantly predicted a large amount of the variance in the collective personal wellness subscales. Implications for mental health professionals’ clinical practice, training, and supervision and limitations and prospects for future studies are discussed.     

An archer's perceived form scales the "hitableness" of archery targets

For skills that involve hitting a target, subsequent judgments of target size correlate with prior success in hitting that target. We used an archery context to examine the judgment-success relationship with varied target sizes in the absence of explicit knowledge of results. Competitive archers shot at targets 50 m away that varied in size among five diameters. Immediately after the arrow's release, its flight and landing were occluded and archers chose which of 18 miniature targets looked most like the distal target. Greater apparent size correlated with higher accuracy. In a second experiment, nonarchers merely aimed the bow (without an arrow) at varied targets. Apparent size was larger when the bow arm was stabilized than when it was not. Archery is seemingly an instance of affordance-based control: For an archer, the affordance of the target is the "hitableness" of its central regions, a property inclusive of his or her momentary, and perceptible, archery form. (PsycINFO Database Record (c) 2012 APA, all rights reserved).     

Reevaluating the role of the medial prefrontal cortex in delay eyeblink conditioning

It has been proposed that the medial prefrontal cortex (mPFC) is not necessary for delay eyeblink conditioning (DEC). Here, we investigated the involvement of the mPFC in DEC with a soft or loud tone as the conditioned stimulus (CS) by using electrolytic lesions or muscimol inactivation of guinea pig mPFC. Interestingly, when a soft tone was used as a CS, electrolytic lesions of the mPFC significantly retarded acquisition of the conditioned response (CR), and muscimol infusions into mPFC distinctly inhibited the acquisition and expression of CR, but had no significant effect on consolidation of well-learned CR. In contrast, both electrolytic lesions and muscimol inactivation of mPFC produced no significant deficits in the CR when a loud tone was used as the CS, or in the unconditioned response (UR) when a soft or loud tone was used as the CS. These results demonstrate that the mPFC is essential for the DEC with the soft tone CS but not for the DEC with the loud tone CS.     

G(o) activation is required for both appetitive and aversive memory acquisition in Drosophila

Heterotrimeric G(o) is an abundant brain protein required for negatively reinforced short-term associative olfactory memory in Drosophila. G(o) is the only known substrate of the S1 subunit of pertussis toxin (PTX) in fly, and acute expression of PTX within the mushroom body neurons (MB) induces a reversible deficit in associative olfactory memory. We demonstrate here that the induction of PTX within the α/β and γ lobe MB neurons leads to impaired memory acquisition without affecting memory stability. The induction of PTX within these MB neurons also leads to a significant defect in an optimized positively reinforced short-term memory paradigm; however, this PTX-induced learning deficit is noticeably less severe than found with the negatively reinforced paradigm. Both negatively and positively reinforced memory phenotypes are rescued by the constitutive expression of G(o)α transgenes bearing the Cys(351)Ile mutation. Since this mutation renders the G(o) molecule insensitive to PTX, the results isolate the effect of PTX on both forms of olfactory associative learning to the inhibition of the G(o) activation.     

Violence risk: Re-defining variables from the first-person perspective

Over the past 25 years, there have been notable advances in violence risk assessment of mentally ill individuals using actuarial methods to define high versus low risk groups. A focus on readily observable risk factors, however, has led to a relative neglect of how the offender's subjective states may be valuable to consider in research on the ongoing assessment and prevention of violence. We argue for the relevance of considering idiographic features of subjective experience in the development of structured assessment methods. We then identify three heuristic groups of existing constructs related to aggressive and illegal behavior that may capture modifiable, time-varying aspects of mental functioning leading up to involvement in an act of violence. These hypothesized domains are: (i) construal of intent and cause; (ii) normative reference points; and (iii) emotion recognition and regulation. We suggest that risk state for violence can be studied in a parsimonious and direct manner through systematic research on coded speech samples. The coding method for such an assessment procedure would be almost identical to existing structured clinical judgment instruments with the difference that variables be defined from a first-person point of view. Some implications of this approach for the tertiary prevention of violence in high-risk individuals are described.     

Neural mechanisms underlying the higher levels of subjective well-being in extraverts: Pleasant bias and unpleasant resistance

The present study investigated the neural mechanisms that underlie the higher levels of subjective well-being in extraverts. The impact of extraversion on the human sensitivity to pleasant and unpleasant pictures of diverse emotional intensities was examined. We recorded event-related potentials (ERPs) for highly positive (HP), moderately positive (MP), and neutral stimuli in the pleasant session, and for highly negative (HN), moderately negative (MN), and neutral stimuli in the unpleasant session, while subjects (16 extraverts and 16 ambiverts) performed a standard/deviant categorization task, irrespective of the emotionality of the deviant stimuli. The results showed significant emotion effects for HP and MP stimuli at the P2 and P3 components in extraverts, but not in ambiverts. Despite a pronounced emotion effect for HN stimuli across the P2, N2, and P3 components in both samples, ambiverts displayed a significant emotion effect for MN stimuli at the N2 and P3 components that was absent in extraverts. The posterior cingulate cortices, which connect multiple neural regions that are important in interactions of emotion and extraversion, may mediate the extravert-specific emotion effect for pleasant stimuli. Thus, extraverts are less susceptible to unpleasant stimuli of mild intensity than are ambiverts, while extraverts have an additional enhanced sensitivity to pleasant stimuli, regardless of emotion intensity. Consequently, the decreased threshold for pleasant emotion and the increased threshold for unpleasant emotion might be essential neural mechanisms that underlie the higher levels of subjective well-being in extraverts.