Higher order balance control: Distinct effects between cognitive task and manual steadiness constraint on automatic postural responses

In the present experiment, we aimed to evaluate the interactive effect of performing a cognitive task simultaneously with a manual task requiring either high or low steadiness on APRs. Young volunteers performed the task of recovering upright balance following a mechanical perturbation provoked by unanticipatedly releasing a load pulling the participant’s body backwards. The postural task was performed while holding a cylinder steadily on a tray. One group performed that task under high (cylinder’ round side down) and another one under low (cylinder’ flat side down) manual steadiness constraint. Those tasks were evaluated in the conditions of performing concurrently a cognitive numeric subtraction task and under no cognitive task. Analysis showed that performance of the cognitive task led to increased body and tray displacement, associated with higher displacement at the hip and upper trunk, and lower magnitude of activation of the GM muscle in response to the perturbation. Conversely, high manual steadiness constraint led to reduced tray velocity in association with lower values of trunk displacement, and decreased rotation amplitude at the ankle and hip joints. We found no interactions between the effects of the cognitive and manual tasks on APRs, suggesting that they were processed in parallel in the generation of responses for balance recovery. Modulation of postural responses from the manual and cognitive tasks indicates participation of higher order neural structures in the generation of APRs, with postural responses being affected by multiple mental processes occurring in parallel.     

Relationships among Chinese college students’ defensive pessimism,cultural values,and psychological health

This study examined defensive pessimism, viewed as a self-regulatory strategy in Western cultures, in China among college students, and explored its relationship with Chinese cultural values and students’ psychological health operationalized as adult hope and personal growth initiative. Two-hundred and thirty Chinese students from a comprehensive university in Beijing, China, participated in the study. Data were analyzed by using structural equation modeling. The results showed that all the measures used in the study were valid for our sample. The inferential modeling demonstrated that reflectivity, but not pessimism, subscale of defensive pessimism correlated with Chinese cultural values. Additionally, pessimism and reflectivity predicted psychological health in opposite directions. Reflectivity contributed to hope and positive growth initiative, but pessimism decreased these psychological health indicators. The results seemed to suggest that reflectivity, but not pessimism, captured the essence of defensive pessimism for Chinese college students. Limitations and directions for future research were discussed.     

Trait predictors of placebo responses in itch

This study investigated trait predictors of placebo responses in the context of inflammatory skin reactions. This was a randomized, cross-over, experimental study using a deceptive placebo protocol. A healthy sample of volunteers (N = 48) completed online personality measures, then attended two laboratory sessions in which short-term inflammatory skin reactions were induced. One was a control session and the other the ‘treatment’ session in which a placebo cream was administered with the suggestion of a reduced skin reaction. A placebo response was defined as smaller skin reactions in control vs. treatment sessions. The traits ego resiliency and neuroticism were selected as possible predictors of placebo responses. Traits were selected in consideration of the two-faceted transactional model of placebo responsiveness and in light of empirical and psychometric considerations ego resiliency emerged as a consistent predictor of placebo responses in itch (p < .05). This is the first study to identify trait predictors of placebo responses in inflammatory skin reactions. Ego resiliency may typify greater placebo responsiveness; however, this may only be in certain contexts. Matching treatment approaches to bio-behavioural response tendencies may be useful clinically if the placebo component of traditional treatments can be enhanced.     

How do cynical employees serve their customers? A multi-method study

In this multi-method study, we investigate how social job demands (i.e., social interruptions) and resources (i.e., colleague support) in the service context influence employee (negative) (re)actions to customers through cynicism towards the job. In addition, we investigate why customers are less satisfied with the provided service when employees endorse a cynical attitude. To test the hypothesized process, we used observer ratings of the employee–customer interactions regarding the number of interruptions and employee negative (re)actions during service encounters, employee self-reports of overall colleague support and daily cynicism, and customer-ratings of service quality. Participants were 48 service employees and 141 customers. Results of multi-level structural equation modelling analyses showed that whereas the number of observed social interruptions during service encounters related positively to cynicism, social support related negatively. Cynical employees exhibited more negative (re)actions towards their customers (e.g., expressed tension, were unfriendly). Consequently, the more negative (re)actions employees showed towards their customers, the less satisfied customers were with the service quality. The study contributes to the literature by explaining what makes service employees cynical about their work, and why cynical employees provide low-quality services.     

Sleep deprivation and hallucinations. A qualitative study of military personnel

Much anecdotal evidence suggests that sleep deprivation not only impairs performance, but also brings about other extraordinary effects like hallucinations. However, knowledge about how sleep deprivation may trigger hallucinations is limited. To qualitatively describe hallucinatory experiences during sleep deprivation 12 male military officers from the Norwegian Armed Forces who all had experienced at least one sleep loss-induced hallucinatory experience were recruited. Data were collected and analyzed by semi-structured interviews and thematic analysis. This resulted in the identification of three distinct main themes: (1) Modalities, (2) circumstances/triggers and (3) reactions to hallucinations. Hallucinations were experienced in several modalities (visual, auditory and multi-modality), although visual hallucinations seemed to dominate. Typical reported circumstances/triggers were sleep loss, physical exhaustion, time-of-day, low calorie intake, mental exhaustion and lack of external stimuli (low sensory and social input, boring situations, and monotonous activity). Negative emotions were dominant during the hallucinatory episodes. Often some reasoning and checking on behalf of the officers were necessary to differentiate between real percepts and hallucinations. In some cases the hallucinations caused erroneous actions. Retrospectively, most officers viewed their hallucinatory experiences in light of positive emotions and several emphasized having learned something from them. The results are discussed in relation to the existing literature and suggestions for future studies are outlined.     

Constant vigilance: Heritage values and defensive pessimism in coping with severe acute respiratory syndrome in Singapore

The present study investigates the congruency of defensive pessimism in the Asian context and its role in coping with the severe acute respiratory syndrome (SARS) crisis in Singapore. Data collected from 174 Singaporeans supported the hypothesized relationships among Chinese values, defensive pessimism, SARS-related fears, compliance to preventive health-related behaviors and negative outcomes. Path analysis revealed that individuals' endorsement of Chinese value clusters − prudence, industry, and civic harmony − positively predicted their levels of defensive pessimism. The results also indicated that defensive pessimism had a direct positive effect on SARS-related fears and, SARS-related fears, in turn, were directly related to direct preventive health-related behaviors but not related to indirect preventive behaviors. In addition to the indirect effect of Chinese values on direct preventive health-related behaviors, Chinese values had a direct positive effect on both direct and indirect preventive health-related behaviors. Consistent with our contention that defensive pessimism has the potential for leading to particular negative outcomes, defensive pessimism was found to influence negative outcomes but this relationship was partially mediated by SARS-related fears.     

情绪即社会信息模型的理论及应用

情绪即社会信息(EmotionsasSocialInformationmodel,EASI)模型旨在阐释他人情绪如何通过情感反应和推断加工机制影响观察者的决策,以及认知动机和合适性判断在其中的调节作用。文章将EASI模型与相关理论进行了辨析,并基于对63项使用该理论的实证研究的分析,梳理归纳了EASI模型在领导力、团队、顾客服务、谈判及说服领域展开的应用,以及影响EASI模型的边界条件——信息加工程度和合适性判断的具体因素。未来研究需加强系统化验证、深化与其它理论的整合、拓展应用情境和优化测量方法。     

Personnel selection in the digital age: a review of validity and applicant reactions,and future research challenges

ABSTRACT

We present a targeted review of recent developments and advances in digital selection procedures (DSPs) with particular attention to advances in internet-based techniques. By reviewing the emergence of DSPs in selection research and practice, we highlight five main categories of methods (online applications, online psychometric testing, digital interviews, gamified assessment and social media). We discuss the evidence base for each of these DSP groups, focusing on construct and criterion validity, and applicant reactions to their use in organizations. Based on the findings of our review, we present a critique of the evidence base for DSPs in industrial, work and organizational psychology and set out an agenda for advancing research. We identify pressing gaps in our understanding of DSPs, and ten key questions to be answered. Given that DSPs are likely to depart further from traditional non-digital selection procedures in the future, a theme in this agenda is the need to establish a distinct and specific literature on DSPs, and to do so at a pace that reflects the speed of the underlying technological advancement. In concluding, we, therefore, issue a call to action for selection researchers in work and organizational psychology to commence a new and rigorous multidisciplinary programme of scientific study of DSPs.     

Better explaining the benefits why AI? Analyzing the impact of explaining the benefits of AI-supported selection on applicant responses

Despite the increasing popularity of AI-supported selection tools, knowledge about the actions that can be taken by organizations to increase AI acceptance is still in its infancy, even though multiple studies point out that applicants react negatively to the implementation of AI-supported selection tools. Therefore, this study investigates ways to alter applicant reactions to AI-supported selection. Using a scenario-based between-subject design with participants from the working population (N = 200), we varied the information provided by the organization about the reasons for using an AI-supported selection process (no additional information vs. written information vs. video information) in comparison to a human selection process. Results show that the use of AI without information and with written information decreased perceived fairness, personableness perception, and increased emotional creepiness. In turn, perceived fairness, personableness perceptions, and emotional creepiness mediated the association between an AI-supported selection process, organizational attractiveness, and the intention to further proceed with the selection process. Moreover, results did not differ for applicants who were provided video explanations of the benefits of AI-supported selection tools and those who participated in an actual human selection process. Important implications for research and practice are discussed.