Search results for "Dual"
showing 10 items of 2547 documents
Individual differences in behavioral consistency are related to sequential access to resources and body condition in a producer-scrounger game
2014
Investigating the evolution of consistent between-individual behavioral differences necessitates to explain the emergence of within-individual consistency. Relying on a recent mathematical model, we here test the prediction that the emergence of differences in within-individual consistency is related to the sequential access to resources in a frequency-dependent foraging game. To this end we used flocks of zebra finches (Taeniopygia guttata) engaged in a producer-scrounger foraging game. Tactic investment (i.e., the proportion of hops with the head down) significantly predicted successful tactic use (i.e., the proportion of seeds produced). In support of predictions, we found that individua…
Hegel and Hobbes on Institutions and Collective Actions
2004
. Georg Wilhelm Friedrich Hegel is usually, and rightly, considered the foremost representative of the organistic conception of society. It is only natural to think that his view has nothing in common with the kind of individualistic outlook that dominates our legal and political thinking, and that I myself have tried to defend. I try to show why certain insights of Hegel are potentially important even for individualistic legal and political theories. First, I explicate some of the problems he struggled with, and compare his views with those of Thomas Hobbes. Next, I try to link his views to the modern theories of institutions and of collective action. The antidemocratic ideology expressed…
Music as emotional self-regulation throughout adulthood
2010
Emotional self-regulation is acknowledged as one of the most important reasons for musical engagement at all ages. Yet there is little knowledge on how this self-regulatory use of music develops across the life span. A qualitative study was conducted to initially explore central processes and strategies of the emotional self-regulation during adulthood. The data were collected through group interviews and analyzed through qualitative content analysis. Participants were 21 interviewees with an age range of 21—70 years. The results clarified conceptual features of music-related emotional self-regulation in adulthood and revealed two main trends. First, the basic nature of regulation, includi…
Effects of conversation content on viewing dyadic conversations
2016
People typically follow conversations closely with their gaze. We asked whether this viewing is influenced by what is actually said in the conversation and by the viewer’s psychological condition. We recorded the eye movements of healthy (N = 16) and depressed (N = 25) participants while they were viewing video clips. Each video showed two people, each speaking one line of dialogue about socio-emotionally important (i.e., personal) or unimportant topics (matter-of-fact). Between the spoken lines, the viewers made more saccadic shifts between the discussants, and looked more at the second speaker, in personal vs. matter-of-fact conversations. Higher depression scores were correlated with les…
Expectation Damages and Bilateral Cooperative Investments
2012
We examine the efficiency of the standard breach remedy expectation damages in a setting where the buyer invests cooperatively and the seller invests both cooperatively and selfishly. Contracts may specify a required quality level and an upper bound to the seller's coordination costs. We find that it is optimal to write an augmented Cadillac contract in which quality is stipulated such that it cannot be met with positive probability together with a very low price. Thus, the seller becomes a residual claimant and the coordination-cost threshold can be used to balance the incentives of the buyer.
The high five: Associations of the five positive factors with the big five and well-being
2017
The study of individual differences in positive characteristics has mainly focused on moral traits. The objectives of this research were to study individual differences in positive characteristics from the point of view of the layperson, including non-moral individual characteristics, and to generate a replicable model of positive factors. Three studies based on a lexical approach were conducted. The first study generated a corpus of words which resulted in a refined list of socially shared positive characteristics. The second study produced a five-factor model of positive characteristics: erudition, peace, cheerfulness, honesty, and tenacity. The third study confirmed the model with a diff…
Cyberbullying and Empathy in the Age of Hyperconnection: An Interdisciplinary Approach
2020
Considering cyberbullying as a challenging frontier of analysis in the social sciences, we find ourselves today with the duty to analyze it within a much broader social context. Indeed, we must take into account the logic of exclusion, as a fact. Today, in the logic of how the Internet works, a thin line separates the victim from the perpetrator; this is also due to the Internet we know today, made up of a mass and a headless power. Trying to amplify this dichotomy, we can say that today we live in the era of the so-called “ban-opticon” (or the logic of prohibition). This logic ranges from simply removing Facebook friends from the list, to excluding sources of knowledge. This article has fo…
What is individual in individualised instruction? Five storylines of meeting individual needs at school
2015
Abstract The purpose of this narrative case study was to examine the meanings and practices of individualised instruction narrated by two seventh-grade Finnish pupils with mild learning difficulties, their mothers, their special education teacher and researchers. The data comprise narrative interviews and field notes. The analysis showed that the narrators had various, even conflicting, experiences of individualisation, which was narrated through five storylines: individual needs as difficulties and limitations; individualisation as the ideal principle for inclusive education; individualisation as a bureaucratic procedure; individualised instruction as making room for emotions, and individu…
Data from: Spatio-temporal dynamics of density-dependent dispersal during a population colonisation
2019
Predicting population colonisations requires understanding how spatio-temporal changes in density affect dispersal. Density can inform on fitness prospects, acting as a cue for either habitat quality, or competition over resources. However, when escaping competition, high local density should only increase emigration if lower-density patches are available elsewhere. Few empirical studies on dispersal have considered the effects of density at the local and landscape scale simultaneously. To explore this, we analyze 5 years of individual-based data from an experimental introduction of wild guppies Poecilia reticulata. Natal dispersal showed a decrease in local density dependence as density at…
Data from: The evolution of a complex trait: cuticular hydrocarbons in ants evolve independent from phylogenetic constraints
2017
Cuticular hydrocarbons (CHC) are ubiquitous and highly diverse in insects, serving as communication signal and waterproofing agent. Despite their vital function, the causes, mechanisms and constraints on CHC diversification are still poorly understood. Here, we investigated phylogenetic constraints on the evolution of CHC profiles, using a global dataset of the species-rich and chemically diverse ant genus Crematogaster. We decomposed CHC profiles into quantitative (relative abundances, chain length) and qualitative traits (presence/absence of CHC classes). A species-level phylogeny was estimated using newly generated and previously published sequences from five nuclear markers. Moreover, w…