Correction to smith, hood, and gilchrist (2010)

Reports an error in "Probabilistic cuing in large-scale environmental search" by Alastair D. Smith, Bruce M. Hood and Iain D. Gilchrist (Journal of Experimental Psychology: Learning, Memory, and Cognition, 2010[May], Vol 36[3], 605-618). This article contained typographical errors in the first paragraph under Experiment 2, Results. The first Analysis of Variance conducted on reaction time data reported incorrect degrees of freedom. This does not affect the interpretation of the article. The corrected paragraph is as follows. "Search times (see Figure 3) were significantly faster for targets in the rich side of the display (mean difference 6.57 s, SD 4.22), F(1, 17) 42.9, p .001. There was also a main effect of block, F(1, 17) 5.73, p .05, and a Probability X Block interaction, F(1, 17) 11.0, p .005, reflecting the slower overall search times for sparse trials in the second block and indicating a larger cuing effect in Block 2 (mean difference 8.10 s, SD 4.93) than Block 1 (mean difference 5.05 s, SD 4.31)." (The following abstract of the original article appeared in record 2010-08037-004.) Finding an object in our environment is an important human ability that also represents a critical component of human foraging behavior. One type of information that aids efficient large-scale search is the likelihood of the object being in one location over another. In this study we investigated the conditions under which individuals respond to this likelihood, and the reference frames in which this information is coded, using a novel, large-scale environmental search paradigm. Participants searched an array of locations, on the floor of a room, for a hidden target by pressing switches at each location. We manipulated the probability of the target being at a particular set of locations. Participants reliably learned target likelihoods when the possible search locations were kept constant throughout the experiment and the starting location was fixed. There was no evidence of such learning when room-based and body-based reference frames were dissociated. However, when this was combined with a more salient perceptual landmark, an allocentric cuing effect was observed. These data suggest that the encoding of this type of statistical contingency depends on the combination of spatial cues. (PsycINFO Database Record (c) 2012 APA, all rights reserved).     

Best friends: children use mutual gaze to identify friendships in others

This study examined children's ability to use mutual eye gaze as a cue to friendships in others. In Experiment 1, following a discussion about friendship, 4-, 5-, and 6-year-olds were shown animations in which three cartoon children looked at one another, and were told that one target character had a best friend. Although all age groups accurately detected the mutual gaze between the target and another character, only 5- and 6-year-olds used this cue to infer friendship. Experiment 2 replicated the effect with 5- and 6-year-olds when the target character was not explicitly identified. Finally, in Experiment 3, where the attribution of friendship could only be based on synchronized mutual gaze, 6-year-olds made this attribution, while 4- and 5-year-olds did not. Children occasionally referred to mutual eye gaze when asked to justify their responses in Experiments 2 and 3, but it was only by the age of 6 that reference to these cues correlated with the use of mutual gaze in judgements of affiliation. Although younger children detected mutual gaze, it was not until 6 years of age that children reliably detected and justified mutual gaze as a cue to friendship.     

EEG theta phase coupling during executive control of visual working memory investigated in individuals with schizophrenia and in healthy controls

In healthy humans, it has been shown that executive functions are associated with increased frontal-midline EEG theta activity and theta phase coupling between frontal and posterior brain regions. In individuals with schizophrenia, central executive functions are supposed to be heavily impaired. Given that theta phase coupling is causally involved in central executive functions, one would expect that patients with an executive function deficit should display abnormal EEG theta synchronization. We therefore investigated executive functioning in 21 healthy controls and 21 individuals with schizophrenia while they performed a visuospatial delayed match to sample task. The task required either high executive demands (manipulation of content in working memory [WM]) or low executive demands (retention of WM content). In addition, WM load (one vs. three items) was varied. Results indicated higher frontal theta activity for manipulation processes than for retention processes in patients with schizophrenia, as compared with healthy controls, independently of WM load. Furthermore, individuals with schizophrenia revealed a reduction in theta phase coupling during early stages of the delay period for retention, as well as for manipulation processes at high-WM loads. Deviations in theta phase coupling in individuals with schizophrenia were mainly characterized by aberrant fronto-posterior connections, but also by attenuated posterior connections during manipulation of high-WM load. To conclude, fronto-parietal theta coupling seems to be substantially involved in executive control, whereas frontal theta activity seems to reflect general task demands, such as deployment of attentional resources during WM.     

Falsche Geständnisse

Although false confessions would seem to run counter to their own interests, innocent suspects do occasionally admit to having committed even serious crimes. This article describes individual differences in susceptibility to interrogative influence and mechanisms through which interrogation tactics can induce false confessions. It will also show that there is no simple way of distinguishing false from true confessions, which is partly due to the lack of verbatim records of interviews with suspects. In some cases false confessions can even negatively impact on the gathering and evaluation of further evidence and in turn this seemingly independent evidence seems to validate the false confession if this is later retracted. Psychological expertise may well help to clarify individual cases; however, any uncritical transfer of the credibility assessment developed to evaluate witness testimony, without taking the specific conditions of interviews with suspects into account, may well lead to false results.     

Match performance and physical capacity of players in the top three competitive standards of English professional soccer

The aim of this study was to compare the match performance and physical capacity of players in the top three competitive standards of English soccer. Match performance data were collected from players in the FA Premier League (n = 190), Championship (n = 155) and League 1 (n = 366) using a multiple-camera system. In addition, a selection of players from the Premier League (n = 56), Championship (n = 61) and League 1 (n = 32) performed the Yo-Yo intermittent endurance test level 2 (Yo-Yo IE2) to determine physical capacity. Players in League 1 and the Championship performed more (p < .01) high-intensity running than those in the Premier League (Effect Size [ES]: 0.4–1.0). Technical indicators such as pass completion, frequency of forward and total passes, balls received and average touches per possession were 4–39% higher (p < .01) in the Premier League compared to lower standards (ES: 0.3–0.6). Players also covered more (p < .05) high-intensity running when moving down (n = 20) from the Premier League to the Championship (ES: 0.4) but not when players moved up (n = 18) standards (ES: 0.2). Similar Yo-Yo IE2 test performances were observed in Premier League, Championship and League 1 players (ES: 0.2–0.3). Large magnitude relationships (p < .05) were observed between Yo-Yo IE2 test performances and the total and high-intensity running distance covered in both Championship (r = .56 and .64) and Premier League matches (r = .61 and .54). The data demonstrate that high-intensity running distance was greater in players at lower compared to higher competitive standards despite a similar physical capacity in a subsample of players in each standard. These findings could be associated with technical characteristics inherent to lower standards that require players to tax their physical capacity to a greater extent but additional research is still required to confirm these findings.     

Anxiety mediates the effect of acute stress on working memory performance when cortisol levels are high: a moderated mediation analysis

Background: Anxiety is an aversive emotional state characterized by perceived uncontrollability and hypervigilance to threat that can frequently cause disruptions in higher-order cognitive processes like working memory. The attentional control theory (ACT) predicts that anxiety negatively affects the working memory system. Design: This study tested the association between anxiety and working memory after the addition of stress and measured the glucocorticoid, cortisol. To better understand this relationship, we utilized a moderated mediation model. Methods: Undergraduate students from a public university (N = 103) self-reported their anxiety levels. Participants first completed a short-term memory test. During and after a forehead cold pressor task (stress vs. control procedure) participants completed a working memory test. Salivary cortisol was taken at baseline and after the last working memory test. Results: Overall, acute stress had no effect on working memory. However, we found that anxiety levels mediated the influence of condition (stressed vs. control) on working memory, but only among those individuals who had high cortisol levels after exposure to acute stress, supporting a moderated mediation model. Conclusions: These results imply that activation of the hypothalamic–pituitary–adrenal axis was necessary for working memory impairment in anxious individuals. These results provide support for the ACT.     

Stress Among African American Emerging Adults: The Role of Family and Cultural Factors

The aim of this study was to examine the effects of family and cultural variables on stress among African American emerging adults. Data from this study was collected as part of a larger study that examined cultural, family, and contextual factors and smoking among African American youth in 5th, 8th, and 12th grades. Data were collected from high school seniors at the end of their 12th grade year and 6 months post high school. Multiple regression analyses were conducted to determine whether racial identity, family cohesion, and parental monitoring influence students’ perceived frequency of stress. Higher levels of racial identity were associated with more perceived stress. There were no significant main effects for either parental monitoring or family cohesion on stress. There were significant interactions between racial identity and parental monitoring and between parental monitoring and family cohesion. Study implications are discussed regarding the importance of stress reduction programs for African American emerging adults and for parents of these adults.     

Testing a calling model of psychological career success in Australian young adults: A longitudinal study

Theory-based longitudinal research on career calling is sparse. In a two-wave, cross-lagged panel design we assessed Hall and Chandler's (2005) calling model of psychological career success using 216 young adults (M age = 20.44 years, SD = 2.54). We tested if changes in career calling over time were associated with changes in goal-directed effort (work effort and career strategies) and psychological career success (life meaning and career adaptability) over time, and if goal-directed effort mediated between career calling and psychological career success over time. The standard causal model showed a better fit over the base, reverse, and reciprocal causation models. T1 career calling predicted T2 work effort, career strategies, life meaning, and career adaptability. Only career strategies mediated between T1 career calling and T2 life meaning and T2 career adaptability. Limitations and future directions are discussed.     

Look into my eyes: Gaze direction and person memory

The current research considered the effects of gaze direction on a fundamental aspect of social cogition: person memory. It was anticipated that a person's direction of gaze (i.e., direct or averted) would impact his or her subsequent memorability, such that recognition would be enhanced for targets previously displaying direct gaze. In Experiment 1, participants were presented with faces displaying either direct or averted gaze in a person‐classification (i.e., conceptual) task. Then, in a surprise memory test, they were required to report whether a presented face had been seen before. As expected, a recognition advantage was observed for targets displaying direct gaze during the initial classification task. This finding was replicated and extended in a second experiment in which participants initially reported the spatial location (i.e., perceptual task) of each face. We consider the implications of these findings for basic aspects of social‐cognitive functioning and person perception.     

Quality of management by objectives,task-related stressors,and non-task-related stressors as predictors of stress and job satisfaction among teleworkers

This study examined the effects of management behaviour together with jobrelated and non-job-related stressors on stress experience and job satisfaction among teleworkers. Fifty-four participants were full- or part-time teleworkers, and eighteen participants were members of a nonteleworking control group with comparable working tasks recruited from the same companies. Self-report measures of quality of MBO, task-related stressors, and non-job-related stressors (predictors) were collected, together with measures of participants' stress experience and job satisfaction (criteria). The three predictor variables represented rather independent stress factors. Consistent with expectations, non-job-related stressors were higher for teleworkers working predominantly at home compared to office-centred teleworkers and nonteleworking controls. Moreover, regression analyses indicated significant effects of quality of MBO and non-job-related stressors on teleworkers' stress experience and job satisfaction. Occupational health and management implications of these results for preventive and prospective aspects of telework design are discussed.