The Cognitive-Vestibular Compensation Hypothesis: How Cognitive Impairments Might Be the Cost of Coping With Compensation

Previous research in vestibular cognition has clearly demonstrated a link between the vestibular system and several cognitive and emotional functions. However, the most coherent results supporting this link come from rodent models and healthy human participants artificial stimulation models. Human research with vestibular-damaged patients shows much more variability in the observed results, mostly because of the heterogeneity of vestibular loss (VL), and the interindividual differences in the natural vestibular compensation process. The link between the physiological consequences of VL (such as postural difficulties), and specific cognitive or emotional dysfunction is not clear yet. We suggest that a neuropsychological model, based on Kahneman’s Capacity Model of Attention, could contribute to the understanding of the vestibular compensation process, and partially explain the variability of results observed in vestibular-damaged patients. Several findings in the literature support the idea of a limited quantity of cognitive resources that can be allocated to cognitive tasks during the compensation stages. This basic mechanism of attentional limitations may lead to different compensation profiles in patients, with or without cognitive dysfunction, depending on the compensation stage. We suggest several objective and subjective measures to evaluate this cognitive-vestibular compensation hypothesis.

The Influence of Media Exposure on Anxiety and Working Memory during Lockdown Period in Italy

The rapid spread of the coronavirus pandemic has caused anxiety around the world. During lockdown, the media became a point of reference for people seeking information. However, little is known on the relationships between anxiety resulting from persistent media exposure to coronavirus-related programs and the effects produced on working memory. In this work, a total of 101 Italian citizens (53.7% female) aged between 18 and 45 years old, who were from 14 provinces in Italy, participated in an online survey. Participants were presented with media exposure and anxiety questionnaires and they were instructed to carry out working memory tasks (visual and auditory n-back). The results showed that media exposure is related to anxiety. It was also found that high levels of anxiety have a negative influence on the performance of both visual and auditory working memory tasks in terms of increased reaction times of responses and decreased accuracy. The results were critically discussed in the light of the Social Compensation Hypothesis.

Government Size and Openness: Insights Based on Country Classifications

This study investigates the nexus between government size and openness by paying special attention to country classification. The main results of our empirical investigations show that (i) there are two government size trends meaning two different country groups exist; (ii) there is a positive relationship between trade openness and government size for the first country group, which validates the compensation hypothesis; (iii) a negative relationship between financial openness and government size is found for the second country group, which confirms the efficiency hypothesis; (iv) the effect of financial openness is nearly ten times higher than trade openness; (v) an endogenous country classification process yields better results to understand the linkages between openness and government size. In this regard our study incorporates both hypotheses and provides a uniform explanation.

Heterogeneity in Risk-Taking During the COVID-19 Pandemic: Evidence From the UK Lockdown

In two pre-registered online studies during the COVID-19 pandemic and the early 2020 lockdown (one of which with a UK representative sample) we elicit risk-tolerance for 1,254 UK residents using four of the most widely applied risk-taking tasks in behavioral economics and psychology. Specifically, participants completed the incentive-compatible Balloon Analog Risk Task (BART) and the Binswanger-Eckel-Grossman (BEG) multiple lotteries task, as well as the Domain-Specific Risk-Taking Task (DOSPERT) and the self-reported questions for risk-taking used in the German Socio-economic Panel (SOEP) study. In addition, participants in the UK representative sample answered a range of questions about COVID-19-related risky behaviors selected from the UCL COVID-19 Social Survey and the ICL-YouGov survey on COVID-19 behaviors. Consistently with pre-COVID-19 times, we find that risk tolerance during the UK lockdown (i) was higher in men than in women and (ii) decreased with age. Undocumented in pre-COVID-19 times, we find some evidence for healthier participants displaying significantly higher risk-tolerance for self-reported risk measures. We find no systematic nor robust patterns of association between the COVID-19 risky behaviors and the four risk-taking tasks in our study. Moreover, we find no evidence in support of the so-called “risk compensation” hypothesis. If anything, it appears that participants who took greater risk in real-life COVID-19-relevant risky behaviors (e.g., isolating or taking precautions) also exhibited higher risk-tolerance in our experimental and self-reported risk-taking measures.

Mitonuclear Coevolution, but Not Nuclear Compensation, Drives Evolution of OXPHOS Complexes in Bivalves

In Metazoa, 4 out of 5 complexes involved in oxidative phosphorylation (OXPHOS) are formed by subunits encoded by both the mitochondrial (mtDNA) and nuclear (nuDNA) genomes, leading to the expectation of mito-nuclear coevolution. Previous studies have supported co-adaptation of mitochondria-encoded (mtOXPHOS) and nuclear-encoded OXPHOS (nuOXPHOS) subunits, often specifically interpreted with regard to the “nuclear compensation hypothesis”, a specific form of mitonuclear coevolution where nuclear genes compensate for deleterious mitochondrial mutations owing to less efficient mitochondrial selection. In this study we analysed patterns of sequence evolution of 79 OXPHOS subunits in 31 bivalve species, a taxon showing extraordinary mtDNA variability and including species with “doubly uniparental” mtDNA inheritance. Our data showed strong and clear signals of mitonuclear coevolution. NuOXPHOS subunits had concordant topologies with mtOXPHOS subunits, contrary to previous phylogenies based on nuclear genes lacking mt interactions. Evolutionary rates between mt and nuOXPHOS subunits were also highly correlated compared to non-OXPHOS-interacting nuclear genes. Nuclear subunits of chimeric OXPHOS complexes (I, III, IV, and V) also had higher dN/dS ratios than Complex II, which is formed exclusively by nuDNA-encoded subunits. However, we did not find evidence of nuclear compensation: mitochondria-encoded subunits showed similar dN/dS ratios compared to nuclear-encoded subunits, contrary to most previously studied bilaterian animals. Moreover, no site-specific signals of compensatory positive selection were detected in nuOXPHOS genes. Our analyses extend the evidence for mitonuclear coevolution to a new taxonomic group, but we propose a reconsideration of the nuclear compensation hypothesis.

Arranged Marriage, Partner Traits and Parental Investment

Both sexes choose mates based on qualities that will enhance offspring viability and quality. In some cases individuals are forced to reproduce with less desirable mates which has been shown to result in lower quality offspring. The Reproductive Compensation Hypothesis (RCH) predicts that parents who mate under constraint will increase their reproductive effort and investment in offspring to compensate for lowered offspring viability. Evidence for the RCH has been found in several animal species; however it has not been examined in humans. One possible type of mate choice constraint in humans is that of arranged marriage in which parents or others choose mates for individuals. In order to test the RCH, I examine whether there are differences in both partner traits between women in arranged marriages and those in self-choice marriages, and differences in parental investment between women in arranged and self-choice marriages using data from the Indonesian Family Life Survey. Except for husband’s education level, no differences were found in mate characteristics between the husbands of women in self-choice marriages and those in arranged marriages. Marriage type did not significantly correlate with parental investment except for number of live births. This correlation, however, was not in the predicated direction. Results show that women in self-choice marriages had more offspring (controlling for marriage duration) than woman in arranged marriages. It is possible that arranged marriage is not a true constraint on mate choice or that parental investment measures used in this study need to be more refined.

Is Social Media Use Socially Enhancing or Compensating?

Who benefits more from the use of social media—those who are already socialable and have a wide network of friends or those who do not and so seek to make up for their deficiency by going online? The social enhancement hypothesis says that extroverts benefit more through being able to enlarge their network of friends online more than introverts. The social compensation hypothesis, on the other hand, argues that social media use benefits introverts more; shy users who avoid face-to-face communication can communicate freely online. MANOVA analysis of the survey of 1,392 college students in a western state of India who are Facebook users found evidence predominantly for the social enhancement hypothesis.

Cognitive labor shapes the desire for social and monetary compensation

When do people want something back for their mental labor? Based on equity theory, we propose that conscious experiences of success and effort—which emerge during cognitive work—shape people’s subsequent desire for social and monetary rewards. We examined this idea in a series of experiments, in which participants carried out a cognitive task, in which we manipulated task difficulty (easy vs. difficult) and performance feedback (high vs. low) within subjects. After each trial of this task, we probed people’s desire for compensation, in terms of social appreciation or money. Findings were in line with the entitlement hypothesis, which assumes that the experience of success can cause people to feel entitled to money. However, we found only indirect support for the effort compensation hypothesis, which assumes that the feeling of effort increases the subsequent desire for compensation, and no support for the intrinsic reward hypothesis, which assumes that people desire less social appreciation after already having experienced success. When considered together, our results suggest that labor-related feelings (of success and effort) shape people’s subsequent desire for money and social appreciation in several ways. These findings have potential implications for the effective use of performance feedback in work contexts.