Engagement and arousal effects in predicting the increase of cognitive functioning following a neuromodulation program

Research in the field of Brain-Computer Interfaces (BCIs) has increased exponentially over the past few years, demonstrating their effectiveness and application in several areas. The main purpose of the present paper was to explore the relevance of user engagement during interaction with a BCI prototype (Neuro-Upper, NU), which aimed at brainwave synchronization through audio-visual entrainment, in the improvement of cognitive performance

Detecting emotions during a memory training assisted by a social robot for individuals with Mild Cognitive Impairment (MCI)

The attention towards robot-assisted therapies (RAT) had grown steadily in recent years particularly for patients with dementia. However, rehabilitation practice using humanoid robots for individuals with Mild Cognitive Impairment (MCI) is still a novel method for which the adherence mechanisms, indications and outcomes remain unclear. An effective computing represents a wide range of technological opportunities towards the employment of emotions to improve human-computer interaction. Therefore, the present study addresses the effectiveness of a system in automatically decode facial expression from video-recorded sessions of a robot-assisted memory training lasted two months involving twenty-one participants. We explored the robot’s potential to engage participants in the intervention and its effects on their emotional state. Our analysis revealed that the system is able to recognize facial expressions from robot-assisted group therapy sessions handling partially occluded faces. Results indicated reliable facial expressiveness recognition for the proposed software adding new evidence base to factors involved in Human-Robot Interaction (HRI). The use of a humanoid robot as a mediating tool appeared to promote the engagement of participants in the training program. Our findings showed positive emotional responses for females. Tasks affects differentially affective involvement. Further studies should investigate the training components and robot responsiveness

The Role of Life Meaning in Psychological Distress and Post-traumatic Growth Among Italian First-Aid Volunteers During the COVID-19 Outbreak

The coronavirus disease 2019 (COVID-19) pandemic has been a sudden and disruptive event that has produced lots of deaths, overload of the healthcare system, interruption of social habits, and change in life prospective. The study aimed to explore the relationships between meaning of life, psychological distress, and post-traumatic growth in volunteers from the first-aid associations operating in Italy belonging to the areas most affected by the pandemic (Bergamo, Brescia, and Parma). Our hypothesis anticipated that the meaning of life can mediate the relationship between psychological distress and post-traumatic growth. We, also, expected that this effect could vary with the role played in the rescue team, the increased shifts’ amount, and the monetary incentive. Using a cross-sectional design, a convenience sample of 268 consenting participants completed Depression, Anxiety and Stress Scale (DASS-21), Post-Traumatic Growth Inventory (PTGI), and Personal Meaningful Profile-Brief (PMP-B). Findings yielded a positive relationship between psychological distress and post-traumatic growth (r =.284). Regarding the meaning of life, Spearman’s correlation revealed that the two dimensions of “Self-Transcendence” and “Religion” are moderately involved in the post-traumatic change (specifically, “New Possibilities” ρ =.237, “Personal Strength” ρ =.252, and “Spiritual Change” ρ =.373). Logistic regression failed to show any effect concerning role, shifts’ amount, and distress level. Finally, the monetary incentive appeared to not influence the altruism’s propension. Even though our findings should be interpreted with caution, this study provides evidence for the relevance of meaning of life to understanding of resilience and promoting the well-being of workforce following traumatic experiences

The Ljapunov-Schmidt reduction for some critical problems

This is a survey about the application of the Ljapunov-Schmidt reduction for some critical problems

Mild Cognitive Impairment, la sfida da affrontare. Interventi cognitivi e riabilitativi per migliorare il funzionamento cognitivo

Increases in life expectancy have been followed by an upsurge of age-associated changes and pathologies. This brings important challenges to society. A central issue concerns the growth of the incidence of age-associated cognitive decline. As people grow older, the structural and functional changes that occur in their brain lead to an overall deterioration of cognitive functioning, potentially compromising quality of life and social interaction. There has been an upsurge of attention in exploring non-pharmacological strategies to prevent or delay the impact of mild cognitive impairment. The paper aims to discuss different interventions approaches particularly cognitive training or rehabilitation interventions evaluating their effects to improve cognitive function among individuals with MCI. Several interventions proposed and implemented to slow or reverse these cognitive impairments show promise, but future studies should consider also how overcome barriers to the prompt diagnosis of MCI in individuals and physician’s perceptions in order to successfully promote healthy aging and prevent or slow down age-associated cognitive decline

Post-Traumatic Outcomes among Survivors of the Earthquake in Central Italy of August 24, 2016. A Study on PTSD Risk and Vulnerability Factors

Central Italy suffered from the earthquake of 2016 resulting in great damage to the community. The purpose of the present study was to determine the long-term traumatic outcomes among the population. A preliminary study aimed at obtaining the Italian translation of the first 16 item of HTQ IV part [1] which was administered, 20 months after the disaster, at 281 survivors. In backward stepwise logistic regressions models, we estimated among the respondent’s characteristics and event-related variables the best predictors of Post-Traumatic Stress Disorder (PTSD). A Confirmatory Factor Analysis (CFA) revealed a HTQ five-factors solution as best model, with satisfactory indexes of fit. HTQ held a positive correlation with both the SQD-P (r =.65, p <.05) and SQD-D subscales (r =.47, p <.05). ROC analysis suggested an area of.951 (95% CI =.917–.985) for the PTSD prediction. Basing on sensibility (.963) and specificity (.189), the best cut-off of 2.0 allowed discriminating for PTSD positive cases. After 20 months of the earthquake, the estimate prevalence of PTSD among the survivors is of 21.71% with a consistent and graded association between exposure variables and vulnerability factors (gender, age, exposure to death and home damage) and PTSD symptoms

Influence of flow confinement on the drag force on a static cylinder

The influence of confinement on the drag force $F$ on a static cylinder in a viscous flow inside a rectangular slit of aperture $h_0$ has been investigated from experimental measurements and numerical simulations. At low enough Reynolds numbers, $F$ varies linearly with the mean velocity and the viscosity, allowing for the precise determination of drag coefficients $\lambda_{||}$ and $\lambda_{\bot}$ corresponding respectively to a mean flow parallel and perpendicular to the cylinder length $L$. In the parallel configuration, the variation of $\lambda_{||}$ with the normalized diameter $\beta = d/h_0$ of the cylinder is close to that for a 2D flow invariant in the direction of the cylinder axis and does not diverge when $\beta = 1$. The variation of $\lambda_{||}$ with the distance from the midplane of the model reflects the parabolic Poiseuille profile between the plates for $\beta \ll 1$ while it remains almost constant for $\beta \sim 1$. In the perpendicular configuration, the value of $\lambda_{\bot}$ is close to that corresponding to a 2D system only if $\beta \ll 1$ and/or if the clearance between the ends of the cylinder and the side walls is very small: in that latter case, $\lambda_{\bot}$ diverges as $\beta \to 1$ due to the blockage of the flow. In other cases, the side flow between the ends of the cylinder and the side walls plays an important part to reduce $\lambda_{\bot}$: a full 3D description of the flow is needed to account for these effects

Interpersonal affect in groupwork: A comparative case study of two small groups with contrasting group dynamics outcomes

Teamwork capabilities are essential for 21st century life, with groupwork emerging as a fruitful context to develop these skills. Case studies that explore interpersonal affect dynamics in authentic higher education groupwork settings can highlight collaborative skills development needs. This comparative case-study traced the sociodynamic evolution of two groups of first-year university students to investigate the high collaborative variance outcomes of the two groups, which reported starkly contrasting group dynamics (negative and dysfunctional or positive and collaborative). Mixed-methods (video-recorded observations of five groupwork labs over one semester, and group interviews) provided interpersonal affect data as real-time visible behaviours, and the felt experiences and perceptions of participants. The study traced interpersonal affect dynamics in the natural fluctuation of not just task-focused (on-task), but also explicitly relational (off-task) interactions, which revealed their function in both task participation and group dynamics. Findings illustrate visible interpersonal affect behaviours that manifested and evolved over time as interactive patterns, and group dynamics outcomes. Fine-grained analysis of interactions unveiled interpersonal affect as a collective, evolving process, and the mechanism through which one group started and stayed highly positive and collaborative over the semester. The other group showed a tendency towards splitting to undertake tasks early, leading to low group-level interpersonal attentiveness, and over time, subgroups emerged through interactions both off-task and on-task. The study made visible the pervasive nature of interpersonal affect as enacted through seemingly inconsequential everyday behaviours that supported the relational and task-based needs of groupwork, and those behaviours which impeded collaboration

Social robots in cognitive interventions. Advances, problems and perspectives

Social Assistive Robots are being used in therapeutic interventions for elderly people affected by cognitive impairments. The present paper reports our research lines aiming at investigating the role of a social robot in aiding therapists during cognitive stimulation sessions for elders with Mild Cognitive Impairment and Mild Dementia. We review our studies whose results show that social robots have been positively accepted by the seniors in different experiments. Participants were very attentive and involved in the sessions’ tasks and their experience was mainly positive. Our data suggest that this technology can be a valid tool to support psychotherapists in cognitive stimulation interventions emphasizing the need of multidisciplinary approaches combining assessment of behavior and robotics