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Individual differences in nonhuman primates : personality and its relationship to social interactions, socio-emotional perception, and well-beingWilson, Vanessa Amy Davina January 2016 (has links)
In recent years there have been efforts to assess associations between personality, longevity and well-being in nonhuman primates. Currently, findings indicate that, as in humans, personality traits such as extraversion are associated with both higher well-being (in monkeys and apes) and longevity (in gorillas). Why certain traits seem to have a protective effect is not yet well understood. One hypothesis is that more extraverted individuals rely on the company of others to alleviate stress, and thus mediate physiological stressors, increasing potential life span. Individual differences in social behaviour are therefore an important consideration for increasing our understanding of the protective effects of personality traits. The role of personality in social interactions and well-being is the main focus of this thesis. In Chapter 2, I assess personality and well-being in two species of New World monkey - common (Saimiri sciureus) and Bolivian squirrel monkeys (Saimiri boliviensis) - for which these associations have not previously been studied. I assess differences in personality trait structure between the two species, and compare them to a close relative, Sapajus apella (brown capuchins). I also correlate personality with well-being. Results show that both squirrel monkey species are similar in personality structure, but Bolivian squirrel monkeys share more similar traits with brown capuchins than common squirrel monkeys do. Well-being is associated with low Neuroticism and high Openness. These comparisons inform our understanding of the phylogeny of personality traits, as well as the ancestral links between personality and well-being. In Chapter 3 I focus on examining individual differences in chimpanzee (Pan troglodytes) traits, through the use of previously collected personality data, which may reflect something akin to autism in nonhuman primates. In Chapter 4 I examine behavioural correlates of these traits, and assess personality in relation to behaviour. Results indicate that personality is a stronger predictor of individual differences in social behaviour than the scale measuring autism-like traits. Continuing with a focus in chimpanzees, in Chapter 5 I examine whether personality predicts how individual chimpanzees perceive emotion in conspecifics, using both behavioural and experimental data. Findings show that individuals differ in their attention and arousal in response to emotions in others, and that personality plays a role in these responses. I also report different ‘levels’ of response indicative of separate arousal and attention based processes. This is an understudied but important area of research that might help to elucidate differences in coping with stressful situations in a group environment. In Chapter 6 I shift from a focus of personality as a predictor of response, to potential signals of personality, by examining personality correlates of facial morphology in brown capuchins, Sapajus apella. Results indicate that face width is associated with higher Assertiveness, whilst lower face height is associated with higher Neuroticism/lower Attentiveness. To assess the theory that these associations may act as social cues, such as signals of status or mate quality, in Chapter 7 I assess whether capuchins perceive differences in face width of conspecifics by measuring response to facial images. Results suggest that capuchins do not differ between wide and narrow faces. I discuss the possibility that perception of these associations may be dependent on other variables such as age or knowledge of the signal receiver. Overall, this thesis takes a broad approach to understanding personality, by examining its role in social interactions, perception of others and well-being. These findings are discussed in light of both evolutionary theory and potential benefits to welfare.
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Arbetsterapeuters erfarenhet av hur miljön används i interventioner vid rehabilitering av personer med utmattningssyndromMöller Björö, Carina January 2008 (has links)
<p>Validerat; 20101217 (root)</p>
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Understanding social behaviour : macaque behaviour in coordination and cooperation games and the encoding of inequity in striatumvan Coeverden, Charlotte Ramona January 2017 (has links)
Social behaviours have been widely studied in behavioural economics and psychology. However, the origins of these behaviours in the brain are poorly understood. In this dissertation I will discuss two main avenues of study which constituted separate projects during my PhD candidacy. The first section contains experiments in which I collaborated with Dr Raymundo Báez-Mendoza on the topic of inequity. The second part includes a study on coordination and cooperation behaviour in macaques. Inequity is a concept ubiquitous in daily life. It is the difference between one’s own reward and that of another. There have been several studies that have suggested inequity affects brain activity. However, few studies have touched upon how this parameter is incorporated in neuronal activity. In the experiments that will be described here, monkeys (Macaca mulatta) performed actions to obtain rewards for both themselves and another. The level of inequity in these rewards was manipulated by varying the magnitude of own and other’s rewards. We then proceeded to study neuronal activity by means of single neuron recordings in the striatum of two macaques. We found that inequity modulated task related activity in about 32% of recorded striatal neurons. In addition to this study on inequity we also recorded some sessions in which one of the animals made choices with varying rewards for self and other. From these results, I attempted to characterise behaviour with regards to own reward and inequity in choice situations. Inequity has been considered a contributing factor in explaining cooperation behaviour. Coordination and cooperation are important and frequently observed behaviours. To study coordination and cooperation, I designed an experiment in which the combination of two monkeys’ choices determined the rewards for both animals. In this dissertation I attempt to address how the animals perform combined choices (playing together vs. alone) as well as the nature of their behaviour (e.g. pro-social vs. self-interested). The aim of this work was to characterise what type of information the animals use to solve these tasks. This is vital if one is to study these concepts in the brain using macaques as a model. In summary, this work contributes to a better understanding of social behaviour and provides an example of how this social behaviour is computed in the brain.
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Attracting Donations : How Iranian Charity Organizations Promote to Attract Donation?Dadkhah, Hooman, Samari, Maryam January 2016 (has links)
Non-Profit Organizations (NPO), also called the third sector, are organizations that do not aim to generate revenue and, as the name suggests, profit making is not their goal. However, like any other organization, they have expenses to cover in order to reach their goals. Thus, these organizations have to focus on fund-raising besides the main goals of the organizations. In order to make money, these organizations have to conduct marketing communications. Hence, NPOs marketing communication involves objectives and tools. Iranian NPOs have been active in the last couple of years and they used fund-raising activities in order to attract public funds. They majorly focus on public and social problems and their main aim is to increase public awareness and help people of the society in particular ways. After reviewing the previous studies in the marketing communication, we have come up with the topic, which focuses on the marketing communications of NPOs in Iran. The main goal of this study is to find out the marketing communication objectives and tools of NPOs in Iran. We have used a case study approach in our qualitative research method and our study was conducted on two major NPOs in Iran. After analyzing the collected data, we have come up with the final conclusions. Our study reveals that NPOs main objective is fund-raising and variety marketing communication tools are used by NPOs in order to attract funds. To do so, the NPOs use both digital and traditional marketing communication tools. / <p>Validerat; 20160607 (marikav)</p>
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Employment turnover from the perspective of managers in 5 Star Hotels in Tehran : Front DeskFakheri, Shirin, Nikpour, Maryam January 2016 (has links)
The hospitality and tourism industry is a progressively important part of the all countries because of its effect on economy. One of the important factors regarding this industry is the importance of employees’ impact on service quality, raising income and satisfying guests. Also this industry is known for its high rate of turnover. In hotels guests interact directly with hotel staff and usually it starts from reservation and front desk departments, so that the front office personnel play an important role of making the first picture of hotel in guests' mind. The purpose of this study is to find the factors, which lead an employee to make a decision of leaving a hotel front desk. The data in this study is collected in qualitative format, using semi-structured interviews to gather information. Since the purpose of this study is to understand managers’ point of view, all the interviews were taken from managers. General managers, human resource managers and front desk managers were selected from all 5 star hotels in Tehran to be interviewed. The finding of this thesis indicates that all eight presented factors in frame of reference are true in 5 star hotels in Tehran. Also there are other indicators such as marriage, different work shift schedule, not having related academic background, immigration and starting family business. / <p>Validerat; 20160607 (marikav)</p>
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Exaggerated impulsivity : a cause or a consequence of adolescent repeated ethanol withdrawal?Sanchez-Roige, Sandra January 2014 (has links)
Binge alcohol drinking is a major public health concern world wide and its occurrence is rising among young adults. Using animal and human subjects, this thesis evaluates the impact of binge drinking during a time of neurodevelopment on aspects of impulse control, and studies the potential of addressing a molecular target, the μ-opioid receptor, to alleviate elevated impulsive-like behaviour. First, the nature of impulsivity is described in a review paper. We demonstrate the suitability of the Five-Choice Serial Reaction Time Task (5-CSRTT) for measuring one facet of impulsivity, waiting impulsivity, in mice. Bridging the animal and human laboratories, we developed a novel human analogue of the 5-CSRTT (paper 2). Elevated impulsive behaviour was detected in both young human binge drinkers and in an ethanol-preferring strain of mice, suggesting impulsivity to occur as a prelude to heavy alcohol use. In a second approach (paper 3), we studied the long term effects of intermittent alcohol exposure using a mouse model of adolescent binge drinking. We revealed disrupted impulsive behaviour in adulthood in two different inbred strains, which differ in baseline impulsivity and ethanol drinking patterns, indicating that impulsivity is also a consequence of ethanol exposure. In paper 4 we studied the ability of an opioid antagonist to improve top-down control of impulsive behaviour. Consilience between species and paradigms will need to be further addressed in future studies, but antagonising μ-opioid systems may aid in preventing binge drinking by facilitating inhibitory control mechanisms. Collectively, from animal and human evidence, this thesis will argue that exaggerated impulsivity may result from repeated ethanol withdrawal in adolescence as well as being a pre-existing endophenotype contributing to adolescent binge drinking. Disentangling such a relationship may help delineate new lines of intervention for at-risk individuals.
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Factors affecting movement patterns of mule deer (<i>Odocoileus hemionus</i>) in southern Saskatchewan : implications for chronic wasting disease spreadSilbernagel, Erin Rae 08 April 2010
Chronic wasting disease (CWD) has been a known threat to Saskatchewans wild cervid populations for more than a decade. As host movements can affect the spread of a disease across the landscape, disease models and management strategies should incorporate information regarding movement patterns of the host population in question. I used radio telemetry to study mule deer (<i>Odocoileus hemionus</i>) captured between 2006 and 2008 in a CWD-endemic region of southern Saskatchewan. Using location data from 152 individuals, I investigated home range size and patterns of direct and indirect contact (measured using proximity and shared space use) in relation to sex, habitat, and landscape structure.
<p>Home ranges (95% fixed kernel) of GPS-collared deer in this study averaged 21.4 km² (n = 94). Male home ranges (mean = 29.5 km², n = 56) were larger than those of females (mean = 16.1 km², n = 38), which could have implications for CWD prevalence differences between sexes. Of the landscape variables tested, topographic ruggedness was inversely related to home range size and Shannons diversity (a measure of both habitat richness and evenness) was positively related to home range size.
<p>Potential direct contact events were identified when two deer were located within 25 m of each other at the same point in time. These events occurred more often between February and April, agreeing with the tendency of mule deer to aggregate into large groups during the late winter months, and suggesting that this may be an important time period for disease transmission. Contact also occurred more than expected in cropland, whereas areas of shared use occurred more than expected in grassland, shrub/wood habitat, and rugged terrain. Smaller home ranges and greater degree of shared space use within areas of rough topography may lead to greater risk of environmental contamination with the infectious CWD agent in these areas. In contrast, the relationship between cropland and probability of direct contact may imply greater risk of direct CWD transmission between deer occupying this habitat.
<p>These results identify connections between particular landscape factors and risk of CWD transmission and will be used, in combination with results of related studies, to develop a model of CWD spread in Saskatchewan. This will in turn aid management agencies in developing methods to more effectively manage the disease and control its movement outside of affected regions.
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Factors affecting movement patterns of mule deer (<i>Odocoileus hemionus</i>) in southern Saskatchewan : implications for chronic wasting disease spreadSilbernagel, Erin Rae 08 April 2010 (has links)
Chronic wasting disease (CWD) has been a known threat to Saskatchewans wild cervid populations for more than a decade. As host movements can affect the spread of a disease across the landscape, disease models and management strategies should incorporate information regarding movement patterns of the host population in question. I used radio telemetry to study mule deer (<i>Odocoileus hemionus</i>) captured between 2006 and 2008 in a CWD-endemic region of southern Saskatchewan. Using location data from 152 individuals, I investigated home range size and patterns of direct and indirect contact (measured using proximity and shared space use) in relation to sex, habitat, and landscape structure.
<p>Home ranges (95% fixed kernel) of GPS-collared deer in this study averaged 21.4 km² (n = 94). Male home ranges (mean = 29.5 km², n = 56) were larger than those of females (mean = 16.1 km², n = 38), which could have implications for CWD prevalence differences between sexes. Of the landscape variables tested, topographic ruggedness was inversely related to home range size and Shannons diversity (a measure of both habitat richness and evenness) was positively related to home range size.
<p>Potential direct contact events were identified when two deer were located within 25 m of each other at the same point in time. These events occurred more often between February and April, agreeing with the tendency of mule deer to aggregate into large groups during the late winter months, and suggesting that this may be an important time period for disease transmission. Contact also occurred more than expected in cropland, whereas areas of shared use occurred more than expected in grassland, shrub/wood habitat, and rugged terrain. Smaller home ranges and greater degree of shared space use within areas of rough topography may lead to greater risk of environmental contamination with the infectious CWD agent in these areas. In contrast, the relationship between cropland and probability of direct contact may imply greater risk of direct CWD transmission between deer occupying this habitat.
<p>These results identify connections between particular landscape factors and risk of CWD transmission and will be used, in combination with results of related studies, to develop a model of CWD spread in Saskatchewan. This will in turn aid management agencies in developing methods to more effectively manage the disease and control its movement outside of affected regions.
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Effects of domestication on social support in chickens (Gallus gallus)Katajamaa, Rebecca January 2012 (has links)
Social support is thought to give animals benefits from social partners, such as improved coping with challenges. The aim of this study was to investigate differences in social support in the red junglefowl (RJF) and a domestic layer strain, the White Leghorn (WL). A runway test consisting of two compartments with unfamiliar and familiar stimulus animals was used to measure social motivation before and after a stressful experience. Total number of test animals was 56 divided into four groups; male and female WL as well as male and female RJF. Results showed that females preferred to stay close to familiar conspecifics after stress treatment. Before stress treatment there was little difference between either sex of WL while RJF males and females chose different zones. Females preferred familiar conspecifics, indicating that they rely more on familiar social stimuli for social support. Males of the two breeds behaved differently towards stimulus animals. WL males showed aggression towards familiar stimulus animals while RJF males directed aggression towards unfamiliar stimulus animals. Indication of sexual behavioural dimorphism was supported while further research is needed in domestication effects on social support in chickens.
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Factors affecting movement patterns of mule deer (Odocoileus hemionus) in southern Saskatchewan : implications for chronic wasting disease spread04 1900 (has links)
Chronic wasting disease (CWD) has been a known threat to Saskatchewan’s wild cervid populations for more than a decade. As host movements can affect the spread of a disease across the landscape, disease models and management strategies should incorporate information regarding movement patterns of the host population in question. I used radio telemetry to study mule deer (Odocoileus hemionus) captured between 2006 and 2008 in a CWD-endemic region of southern Saskatchewan. Using location data from 152 individuals, I investigated home range size and patterns of direct and indirect contact (measured using proximity and shared space use) in relation to sex, habitat, and landscape structure.
Home ranges (95% fixed kernel) of GPS-collared deer in this study averaged 21.4 km² (n = 94). Male home ranges (mean = 29.5 km², n = 56) were larger than those of females (mean = 16.1 km², n = 38), which could have implications for CWD prevalence differences between sexes. Of the landscape variables tested, topographic ruggedness was inversely related to home range size and Shannon’s diversity (a measure of both habitat richness and evenness) was positively related to home range size.
Potential direct contact events were identified when two deer were located within 25 m of each other at the same point in time. These events occurred more often between February and April, agreeing with the tendency of mule deer to aggregate into large groups during the late winter months, and suggesting that this may be an important time period for disease transmission. Contact also occurred more than expected in cropland, whereas areas of shared use occurred more than expected in grassland, shrub/wood habitat, and rugged terrain. Smaller home ranges and greater degree of shared space use within areas of rough topography may lead to greater risk of environmental contamination with the infectious CWD agent in these areas. In contrast, the relationship between cropland and probability of direct contact may imply greater risk of direct CWD transmission between deer occupying this habitat.
These results identify connections between particular landscape factors and risk of CWD transmission and will be used, in combination with results of related studies, to develop a model of CWD spread in Saskatchewan. This will in turn aid management agencies in developing methods to more effectively manage the disease and control its movement outside of affected regions.
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