Using resting-state DMN effective connectivity to characterize the neurofunctional architecture of empathy

Neuroimaging studies in social neuroscience have largely relied on functional connectivity (FC) methods to characterize the functional integration between different brain regions. However, these methods have limited utility in social-cognitive studies that aim to understand the directed information flow among brain areas that underlies complex psychological processes. In this study we combined functional and effective connectivity approaches to characterize the functional integration within the Default Mode Network (DMN) and its role in self-perceived empathy. Forty-two participants underwent a resting state fMRI scan and completed a questionnaire of dyadic empathy. Independent Component Analysis (ICA) showed that higher empathy scores were associated with an increased contribution of the medial prefrontal cortex (mPFC) to the DMN spatial mode. Dynamic causal modelling (DCM) combined with Canonical Variance Analysis (CVA) revealed that this association was mediated indirectly by the posterior cingulate cortex (PCC) via the right inferior parietal lobule (IPL). More specifically, in participants with higher scores in empathy, the PCC had a greater effect on bilateral IPL and the right IPL had a greater influence on mPFC. These results highlight the importance of using analytic approaches that address directed and hierarchical connectivity within networks, when studying complex psychological phenomena, such as empathy.- This study was funded by BIAL Foundation (Grant number 87/12); by the Portuguese Foundation for Science and Technology and the Portuguese Ministry of Education and Science through national funds and co-financed by FEDER through COMPETE2020 under the PT2020 Partnership Agreement (POCI-01-0145-FEDER-007653); by the postdoctoral scholarship UMINHO/BPD/18/2017 and by the Portuguese Foundation for Science Doctoral scholarship (PD/BD/105963/2014). This work was conducted at Psychology Research Centre (UID/PSI/01662/2013), University of Minho

perception of COVID-19 and psychological wellbeing

We will investigate the association between distress tolerance and psychological wellbeing during the first quarantine due to the COVID-19 pandemic in Canada (April 27, 2020 to July 30, 2020). We will also investigate whether perceptions of the COVID-19 illness mediate the association between distress tolerance and psychological wellbeing. We will further investigate whether perceived social support moderates the indirect effect of distress tolerance on psychological wellbeing through perceptions of COVID-19 (specifically, whether social support moderates the path from perceptions of COVID-19 to outcome variables). Finally, we will examine whether the interaction between social support and perceptions of COVID-19 predicts psychological wellbeing

Regard sur l'hôtellerie

Fait plutôt rare dans les annales des publications dédiées à l’industrie touristique, la revue Téoros se démarque avec ce dossier consacré spécialement au secteur hôtelier. Les contributeursde ce dossier ont voulu mettre en lumière un ensem ble de thèmes visant, d’une part, à illustrer l’intégration des établissements hôteliers au sein del’industrie touristique et, d’autre part, à refléter des préoccupations de gestion contemporaines rattachées plus spécifiquement au contexte de l’hôte llerie

Regard sur l'hôtellerie

Fait plutôt rare dans les annales des publications dédiées à l’industrie touristique, la revue Téoros se démarque avec ce dossier consacré spécialement au secteur hôtelier. Les contributeursde ce dossier ont voulu mettre en lumière un ensem ble de thèmes visant, d’une part, à illustrer l’intégration des établissements hôteliers au sein del’industrie touristique et, d’autre part, à refléter des préoccupations de gestion contemporaines rattachées plus spécifiquement au contexte de l’hôte llerie