What Physiological Changes and Cerebral Traces Tell Us about Adhesion to Fiction During Theater-Watching?

Live theater is typically designed to alter the state of mind of the audience. Indeed, the perceptual inputs issuing from a live theatrical performance are intended to represent something else, and the actions, emphasized by the writing and staging, are the key prompting the adhesion of viewers to fiction, i.e., their belief that it is real. This phenomenon raises the issue of the cognitive processes governing access to a fictional reality during live theater and of their cerebral underpinnings. To get insight into the physiological substrates of adhesion we recreated the peculiar context of watching live drama in a functional magnetic resonance imaging (fMRI) experiment, with simultaneous recording of heart activity. The instants of adhesion were defined as the co-occurrence of theatrical events determined a priori by the stage director and the spectators’ offline reports of moments when fiction acted as reality. These data served to specify, for each spectator, individual fMRI time-series, used in a random-effect group analysis to define the pattern of brain response to theatrical events. The changes in this pattern related to subjects’ adhesion to fiction, were investigated using a region of interest analysis. The results showed that adhesion to theatrical events correlated with increased activity in the left BA47 and posterior superior temporal sulcus, together with a decrease in dynamic heart rate variability, leading us to discuss the hypothesis of subtle changes in the subjects’ state of awareness, enabling them to mentally dissociate physical and mental (drama-viewing) experiences, to account for the phenomenon of adhesion to dramatic fiction

Digital participation in traumatic brain injury: scoping review about assessment tools for computer-mediated communication

BackgroundIndividuals with chronic traumatic brain injury (TBI) are often affected by communication disorders which might have an impact on their social participation. Due to possible cognitive and communicative disabilities, as well as impairments of social cognitive skills, individuals with TBI have been observed to exhibit difficulties in maintaining and establishing social relationships, resulting in a greater risk of social isolation. This applies to both in-person as well as computer-mediated communication (CMC), which is considered an integral part of everyday life. Research on digital participation in the TBI population has focused on the possible challenges and barriers, but also on the benefits of CMC for social interactions. Guidelines from professional societies recommend questionnaires and checklists for assessing restrictions of communicative participation (e.g., ASHA, INCOG). However, there is no overview of whether the available instruments can capture digital aspects of participation or social media use in TBI.AimIn this scoping review, following the PRISMA criteria, we aimed to provide an overview over currently available instruments that help assess CMC use as a measure of digital participation in the TBI population.MethodThe databases Web of Science Core Collection, Ovid, PsycInfo and Psyndex were screened for publications between the years 2013 and 2023 with relevant search terms referring to social participation, assessment tools, CMC and the target group, in order to find suitable tools to assess digital participation in individuals with TBI. In a multistage selection process following the PRISMA criteria, the instruments found were examined in terms of items that assess digital participation. The outcome of the review is an overview of the status quo of potentially available instruments that capture aspects of CMC.ResultsFollowing a screening on title/abstract and full-text level, a total of 10 studies could be identified that present assessment tools that evaluate CMC use as a measure of digital participation in the TBI population. Said studies were analyzed and compared in terms of content according to the selected parameters.ConclusionDigital participation is an important aspect of everyday lives for individuals with TBI. Therefore, CMC should be an integral part of rehabilitation. The existing appropriate questionnaires uncovered in the current study should therefore be applied routinely to detect impairments in CMC and digital participation. Overall, however, there is still a great need for research in the field of CMC, both regarding methods for measuring digital participation disorders as well as resources.Systematic Review Registrationhttps://www.germanistik.uni-muenchen.de/forschung/proj_gl/review_participation_tbi.pdf

Leave Me Alone With Your Symptoms! Social Exclusion at the Workplace Mediates the Relationship of Employee's Mental Illness and Sick Leave

Although a substantial part of employees suffers from a mental illness, the work situation of this population still is understudied. Previous research suggests that people with a mental illness experience discrimination in the workplace, which is known to have detrimental effects on health. Building on the stereotype content model and allostatic load theory, the present study investigated whether employees with a mental illness become socially excluded at the workplace and therefore show more days of sick leave. Overall, 86 employees diagnosed with a mental disorder were interviewed and completed online-surveys. Path analyses supported the hypotheses, yielding a serial mediation: The interview-rated severity of the mental disorder had an indirect effect on the days of sick leave, mediated by the symptomatic burden and the social exclusion at the workplace. In the light of the costs associated with absenteeism the present paper highlights the harmfulness of discrimination. Organizations and especially supervisors need to be attentive for signs of exclusion within their teams and try to counteract as early as possible

Design and Measurement of a Class EF2 Power Oscillator

International audienceA class EF2 power oscillator designed in standard 130 nm CMOS at 2.5 GHz frequency is presented. The oscillator relies on a direct path based on a power amplifier and a feedback path based on passive elements and an MOS varactor. Class EF2 is used to reduce voltage stress across the switch, enabling a higher output power for modern transistors with low breakdown voltage. The measurement on a class EF2 power oscillator at radio frequency (RF) is presented for the first time. The circuit achieves 17.65 dBm output power from a 2.5 V supply voltage with 27.1% DC-RF efficiency and presents a 150 MHz tuning range. The measured phase noise is −101.6 dBc/Hz at 1 MHz offset. The circuit was implemented in standard 130 nm CMOS technology and consumed a total area of 1.95 mm2. To the authors' knowledge this class EF2 power circuit has never been presented either at RF frequencies or in an integrated technology

Design and Measurement of a 2.5GHz Switched-Mode CMOS Power Amplifier with Reliability Enhancement

International audienceDesign and measurement results of an integrated class EF2 power amplifier on CMOS technology are presented. The class EF2 power amplifier presents lower voltage stress than its class E counterpart due to waveform engineering. The presented circuit was designed in standard ST Microelectronics CMOS 130nm and is able to deliver 19dBm RF output power from a 2V supply voltage with 35% drain efficiency and 32% PAE at 2.5GHz. The output power spectrum presents 33dB power difference between the fundamental frequency and the strongest upper harmonic. A discussion about ground impedance is made and a PCB is used to reduce low ground inductance and DC decoupling