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Virtual reality (VR) is thought of as a promising educational medium, especially for learning actions, as it enables learning by enactment. Learning by enactment is associated with the enactment effect which describes a superior memory for enacted actions compared to actions which have not been enacted. To date, however, little is known about whether the enactment effect across different conditions of action learning can be found in VR which sets the stage for our first research question. Additionally, as a second research question, this study explores the extent to which the memory performance of learning by enactment in VR corresponds to learning by enactment in physical reality. We conducted a VR between subjects experiment with four groups (N = 112) that differed in terms of condition or environment. Participants were asked to remember short action phrases for a subsequent memory test. The results indicate that learning by enactment in VR outperforms learning by reading in VR but does not exceed observational learning in VR. Furthermore, the results demonstrate that the memory performance of learning by enactment in VR is similar to that in physical reality. These findings are highly relevant as they demonstrate the potential of VR as a new educational medium supporting learning by enactment.

Empirical research increasingly challenges the suggested central role of value congruence for commitment. The present study aimed to provide detailed insights into whether and how value levels and value congruence influence commitment. Specifically, this study investigated the effects of value levels and value congruence on commitment, while differentiating between seven value dimensions and between perceived values from and commitment to the organization, supervisor, and team as separate targets. This differentiated approach provides more extensive insights into relationships between values and commitment by demonstrating consistencies and differences across targets and value dimensions. Data from a cross-organizational sample of 1000 employees were analyzed using polynomial regressions with response surface analyses. Results showed that perceived target values most consistently demonstrated strong effects on commitment to that target. Their effects were mostly independent of employee values. Value congruence only contributed to commitment for values concerning performance expectations toward employees. Across targets, people-centered values were most strongly linked to commitment. Accordingly, perceived values of commitment targets, and especially people-centered values, seem to play the key role in value–commitment associations, whereas value congruence has limited practical relevance for commitment. Therefore, practitioners should foster strongly perceived positive values, especially people-centered values, from key commitment targets within organizations, rather than aim for value congruence. This study advances the debate on value congruence’s role for commitment by showing that congruence effects are restricted to certain values, whereas perceived target values are consistently linked to commitment, hence recommending a shift of focus in value–commitment research.

Music is organised both spectrally and temporally, determining musical structures such as musical scale, harmony, and sequential rules in chord progressions. A number of human neuroimaging studies investigated neural processes associated with emotional responses to music investigating the influence of musical valence (pleasantness/unpleasantness) comparing the response to music and unpleasantly manipulated counterparts where harmony and sequential rules were varied. Interactions between the previously applied alterations to harmony and sequential rules of the music in terms of emotional experience and corresponding neural activities have not been systematically studied although such interactions are at the core of how music affects the listener. The current study investigates the interaction between such alterations in harmony and sequential rules by using data sets from two functional magnetic resonance imaging (fMRI) experiments. While replicating the previous findings, we found a significant interaction between the spectral and temporal alterations in the fronto-limbic system, including the ventromedial prefrontal cortex (vmPFC), nucleus accumbens, caudate nucleus, and putamen. We further revealed that the functional connectivity between the vmPFC and the right inferior frontal gyrus (IFG) was reduced when listening to excerpts with alterations in both domains compared to the original music. As it has been suggested that the vmPFC operates as a pivotal point that mediates between the limbic system and the frontal cortex in reward-related processing, we propose that this fronto-limbic interaction might be related to the involvement of cognitive processes in the emotional appreciation of music.

Many studies have demonstrated attenuated verbal working memory (WM) under articulatory suppression. However, performance is not completely abolished, suggesting a less efficient, non-articulatory mechanism for the maintenance of verbal information. The neural causes for the reduced efficiency of such a putative complementary maintenance system have not yet been addressed. The present study was conducted to fill this gap. Subjects performed a Sternberg task (a) under articulatory maintenance at low, high, and supracapacity set sizes and (b) under non-articulatory maintenance at low and high set sizes. With functional magnetic resonance imaging, set-size related increases in activity were compared between subvocal articulatory rehearsal and non-articulatory maintenance. First, the results replicate previous findings showing different networks underlying these two maintenance strategies. Second, activation of all key nodes of the articulatory maintenance network increased with the amount of memorized information, showing no plateau at high set sizes. In contrast, for non-articulatory maintenance, there was evidence for a plateau at high set sizes in all relevant areas of the network. Third, for articulatory maintenance, the non-articulatory maintenance network was additionally recruited at supracapacity set sizes, presumably to assist processing in this highly demanding condition. This is the first demonstration of differential neural bottlenecks for articulatory and non-articulatory maintenance. This study adds to our understanding of the performance differences between these two strategies supporting verbal WM.

Given the common practice of using employee attitude surveys as a group-level intervention, this study used a group-level approach to examine the relationship between group satisfaction and group nonresponse. Samples from four large organizations enabled job satisfaction scores to be aggregated to the work group level and correlated with group-level response rates. Additional regression analysis was conducted to control for a number of confounding variables at the group level. Aggregate job satisfaction showed significant associations with group-level response rates across each of the samples examined. Work groups with higher aggregate job satisfaction had significantly higher response rates. Regression analyses showed that, in addition to job satisfaction, work group size, heterogeneity in tenure, and heterogeneity in gender composition all had significant effects on response rates. Social influence processes may operate at the group level to increase homogeneity of job-relevant attitudes and similarity in survey response behavior. Future research should be designed to investigate the effects of group-level variables on nonresponse. The current study adds to the literature by demonstrating that work group variables may play an important role in explaining nonresponse in employee attitude surveys. Because the processes underlying survey response are likely to be different at different levels of analysis, the investigation of nonresponse as a group-level phenomenon creates new opportunities for research and practice.

In the present study, we sought to investigate the effects of online survey implementation strategies on perceived anonymity and employee response behavior in organizational surveys. A field experiment was conducted to compare two commonly used online survey implementation strategies (N = 815). One group of employees received a personalized invitation to the survey and a log-in password, while the other group received a general invitation and did not have to provide a password. The results showed that the applied implementation strategies had no substantial effects on perceived anonymity. Moreover, there were no significant effects on nonresponse or the responses of survey participants to closed-ended and open-ended survey questions. The present study supposes that online surveys are not a uniform phenomenon and that differences in the implementation of online surveys need to be considered. However, the findings indicate that the use of specified-personalized implementation strategies does not necessarily lead to a substantial decrease in perceived anonymity or automatically result in reduced data quality. Thus, in many cases, the investigated online survey implementation strategies are unlikely to cause serious reductions in perceptions of anonymity and quality of responses to organizational online surveys. In spite of the frequent use of online surveys in organizations, little is known about the consequences of online implementation strategies for perceptions of anonymity and response behavior. This study is one of the few empirical examinations of the psychological consequences of different online implementation strategies frequently used in organizational surveying.

Functional connectivity analysis of resting-state functional magnetic resonance imaging data (fcrs-fMRI) has been shown to be a robust non-invasive method for localization of functional networks (without using specific tasks) and to be promising for presurgical planning. However, in order to transfer the approach to everyday clinical practice, fcrs-fMRI needs to be further validated and made easily accessible to neurosurgeons. This paper addresses the latter by presenting a software tool designed for neurosurgeons for analyzing and visualizing fcrs-fMRI data. A prototypical interactive visualization tool was developed to enable neurosurgeons to explore functional connectivity data and evaluate its usability. The implementation builds upon LIPSIA, an established software package for the assessment of functional neuroimaging data, and integrates the selection of a region-of-interest with the computation and visualization of functionally connected areas. The tool was used to explore data from a healthy participant and eight brain lesion patients. The usability of the software was evaluated with four neurosurgeons previously unacquainted with the methodology, who were asked to identify prominent, large-scale cortical networks. With this novel tool, previously published findings, such as tumor displacement of the sensorimotor cortex and other disturbances of functional networks, were reproduced. The neurosurgeons were able to consistently obtain results similar to the results of an expert, with the exception of the language network. Immediate feedback helped to pinpoint functional networks quickly and intuitively, with even inexperienced users requiring less than 3 min per network. Although fcrs-fMRI is a nascent method still undergoing evaluation with respect to established standards, the interactive software is nonetheless a promising tool for non-invasive exploration of individual functional connectivity networks in neurosurgical practice, both for well-known networks and for those less typically addressed.

There is growing evidence that obesity represents a risk for enhanced gray matter (GM) density changes comparable to those demonstrated for mild cognitive impairment in the elderly. However, it is not clear what mechanisms underlie this apparent alteration in brain structure of overweight subjects and to what extent these changes can already occur in the adolescent human brain. In the present volumetric magnetic resonance imaging study, we investigated GM changes and serum levels of neuron-specific enolase (NSE), a marker for neuronal injury, in a set of overweight/obese subjects and controls. We report a negative correlation for overweight and obese subjects between serum NSE and GM density in hippocampal and cerebellar regions. To validate our neuroimaging findings, we complement these data with NSE gene expression information obtained from the Allen Brain atlas. GM density changes were localized in brain areas that mediate cognitive function—the hippocampus associated with memory performance, and the cognitive cerebellum (lateral posterior lobes) associated with executive, spatial and linguistic processing. The data of our present study highlight the importance of extending current research on cognitive function and brain plasticity in the elderly in the context of obesity to young adult subjects and include serum biomarkers to validate imaging findings generally.