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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
31

ON THE RELATIONSHIP BETWEEN MULTIPLE SOCIAL IDENTITIES CONFIGURATIONS AND PSYCHOLOGICAL ADJUSTMENT

PADERI, FABIO 06 April 2020 (has links)
Recentemente è cresciuto l'interesse tra i ricercatori di psicologia applicata nel misurare l'associazione tra identità sociali multiple e adattamento psicologico. Attingendo dal Social Identity Approach, dall'Intersectionality Theory e dalle teorie sull'integrazione identitaria, in questa raccolta di studi viene analizzata la relazione tra identità multiple e adattamento psicologico adottando diversi metodi. / Recently, there has been increased interest among applied psychological researchers in measuring the associations between intersecting social identities and individual psychological adjustment. Drawing upon social identity approach, intersectionality, identity integration theories and research, in this collection of studies we analyze the relationship between multiple identities and psychological outcomes adopting different methods.
32

Investigating Communication and Social Behaviour Using Wearable Sensor Technology

Finnerty, Ailbhe N. January 2015 (has links)
The behaviour that we exhibit contributes to the message that is communicated to those that we are interacting with and can have an impact on how the message is conveyed and interpreted. Nonverbal behaviour is just as important to be aware of as well as what is being said, as the subtleties of behaviour can impact the outcome of interactions. Advancements in research technologies have allowed us the chance to investigate natural human behaviour is a variety of settings outside of the laboratory, however, some gaps in the understanding of behaviour exist. The aim of this thesis is to investigate communication and social interactions in a variety of settings, paying particular attention to the methods of data collection, specifically the use of wearable sensors, to investigate phenomenon from social psychology. The thesis aims to address three specific research questions; 1) if can we predict stress using a combination of nonverbal behavioural cues along with physiological measurements, 2) understand the factors affecting happiness and productivity in the workplace from features of communication taken from wearable sensors and 3) determine the stressors that can be characterised from communication patterns assessed through Call Detail Records and smartphone sensors. The studies presented here focus on the nonverbal aspects of communication that can be measured through wearable and sensing devices. In the three types of scenarios that are detailed in the different chapters, the interactions considered are face to face meetings in a one on one interaction, co-location within a defined space in an organisation and the communications of a widely dispersed community. The interactions are recorded by wearable devices such as the Affectiva Q sensor, the Sociometric Badge, and smartphones equipped with sensing capabilities in the form of the funf and P-OWL platforms for data recording, among other forms of data collection. Each of the studies included aspects of self reported assessments that were used as a ground truth measurement of affect: these were annotations of stress, self reports of fear of negative evaluation, self perception, positive and negative affect and stress, among others. The goal was to examine how to use digital traces of behavioural expressions to have a greater understanding of these interactions and how the way in which we interact with others has an impact on the individual. The work from this thesis adds to the existing literature on these various issues by addressing the research questions from a novel perspective. The studies found support for each of the research questions and by using a mixed methods approach and digital traces from wearable sensors gained insights into how communication impacted the individual, revealing the important aspects of communication and their effect on stress, productivity and well-being.
33

(De-)mentalization and objectification processes towards minority groups: When the human-object divide fades.

Ruzzante, Daniela 27 January 2022 (has links)
While cutting-edge research has shown how – from a neural and cognitive point of view – human beings are perceived and elaborated differently from objects, in social psychology different studies demonstrated that this human-object divide fades in several circumstances. Research in social psychology is continuing to advance the knowledge on dehumanization and objectification phenomenon in which human beings are perceived and elaborated more similar to an object and less like a human being. Recently, this has been demonstrated quite literally directly comparing human stimuli with a mind and perceptually similar mindless objects (Vaes et al., 2019, 2020). Such direct comparisons allow us to demonstrate how the well-documented human-object divide tends to fade during dehumanization and objectification phenomena. Presenting five research studies, this thesis aims not only at proving how de-mentalized human stimuli are cognitively perceived as object-like (Chapter 2 and 3), but also at showing how these phenomena are influencing more subtle, un-controlled behaviour processes that impact human social interactions (Chapter 4). Specifically, in Chapter 2, two similar EEG studies aimed at exploring the timeline of the mentalization process by adapting a paradigm in which the human-object divide is investigated. By manipulating both perceptual and contextual information, ingroup and outgroup human faces together with their identity-matched doll-like avatar faces were presented while registering participants’ neural correlates. Thanks to the direct comparison between mindless and mindful targets our goal was to unravel the time course of mentalization and its underlying processes. By adapting the same paradigm, in Chapter 3 we explored the process of sexual objectification and presented sexually objectified men and women with their gender-matched doll-like avatars. Our primary goal was to investigate how objectified men and women are perceptually and cognitive perceived by looking at a sample of gay men. By directly comparing mindless and mindful targets we wanted to understand whether sexual objectification might be target (i.e., always mainly directed towards women regardless of the perceivers sexual orientation) or agent specific (i.e., directed towards different targets depending on the perceivers sexual orientation). Moreover, we also wanted to explore what might drive heterosexual men and women and gay men to objectify others. Finally, the purpose of Chapter 4 was to investigate an implicit and unconscious consequence of sexual objectification. By presenting objectified and non-objectified women expressing happiness and anger we measured participants’ spontaneous mimicry responses. Our goal was to determine whether sexual objectification – a phenomenon in which women are considered as object-like – might influence such an uncontrolled and implicit human behaviour that affects normal social interactions.
34

Lo sviluppo e le basi neurali della cognizione sociale: studi sull'attribuzione di stati mentali e sulla valutazione di azioni distributive

Geraci, Alessandra January 2010 (has links)
La ricerca indaga due aree delle cognizione sociale: la Teoria della Mente (ToM) e la valutazione sociale. Nella prima parte è stato indagato quando e come emerge il ragionamento psicologico, inteso come l’abilità di inferire gli stati mentali altrui. Nel primo studio gli esperimenti valutano la capacità negli infanti di attribuire le false credenze attraverso lo sguardo anticipatorio (misure implicite) e anche negli adulti, attraverso compiti verbali (misure esplicite). I risultati hanno rivelato nei bambini di 17 mesi il possesso di un implicita TOM e danno quindi sostegno alle teorie modulari che prevedono una precoce attivazione di capacità metarappresentazionali. Nel secondo studio, sono stati condotti due esperimenti e confrontate due popolazioni di infanti, udenti e sordi. I risultati hanno mostrato il ruolo della precoce esperienza comunicativa, verbale o dei segni, sullo sviluppo della ToM. Un terzo studio condotto sui bambini prescolari bilingui e monolingui, ha rivelato migliori abilità di ragionamento inferenziale e pragmatico nei bambini bilingui. Il quarto studio ha indagato il substrato neurale, sottostante la ToM, per verificare l’ipotesi modulare, analizzando le prestazioni a compiti di ToM di pazienti neurologici, con lesione prevalentemente focale nella corteccia prefrontale, e controllando la co-azione di altri processi cognitivi, come le funzioni esecutive e l’intelligenza generale. I risultati hanno confermato l’ipotesi modulare e del dominio specifico della Teoria della Mente, esaminando una delle regioni neurali, ritenuta specializzata nelle rappresentazione degli stati mentali altrui: la corteccia prefrontale ventromediale. Nella seconda parte del lavoro è stata studiata la valutazione sociale delle azioni distributive nella prima infanzia. Sono stati condotti due studi che hanno indagato le inferenze delle disposizioni altrui, anche in seguito a giudizi su comportamenti distributivi operati da diversi agenti. I risultati hanno rivelato nei bambini di 16 mesi la capacità di inferire le disposizioni degli agenti, quando queste sono successive ad un processo di valutazione sociale dei comportamenti altrui. Le conclusioni hanno implicazioni teoriche che sostengono le nuove proposte sull’origine evolutiva del senso morale.
35

Foreign Language Effects on Judgment and Decision Making

Geipel, Janet January 2015 (has links)
I present four studies in which my coauthors and I investigated whether presenting information in a foreign language, as opposed to the native language, influences judgment and decision-making. Research on judgment and decision-making suggests that there are two routes to judgment and choice: an intuitive, emotional route and an analytic, controlled route. Research on bilingualism suggests that the use of a foreign language influences the intuitive route. It attenuates emotions and dampens the activation of moral and sociocultural norms. Merging these lines of research, my coauthors and I predicted that foreign language would influence judgment and decision-making. We found that it influences moral judgment through a deactivation of moral norms, and that it affects the perception of risk and benefit through an attenuation of negative feelings. I discuss the theoretical and practical significance of the present findings, and point out limitations and possible future developments of this research area.
36

Convenzioni e convinzioni. L'apprendimento della matematica nel sistema formativo trentino.

Ress, Anna January 2010 (has links)
Si tratta di una ricerca sui fattori che intervengono nell'apprendimento della matematica, a livello scolastico secondario di II grado, condotta attraverso un'analisi delle convinzioni, intese come attitudini, attribuzioni, aspettative e stereotipi. La ricerca mette in luce i processi interazionali che intervengono nel concetto di sè matematico, negli stili attribuzionali di successo e insuccesso e nella socializzazione, primaria e secondaria, ai ruoli di genere.
37

Collective Memories in Wikipedia

Ferron, Michela January 2012 (has links)
Collective memories are precious resources for the society, because they contribute to strengthening the emotional bonding between community members, maintaining groups cohesion, and directing future behavior. Understanding the formation of the collective memories of emotional upheavals is important to a better comprehension of people's reactions and of the consequences on their psychological health. Previous studies investigated the effects of single traumatizing events, but few of them applied a quantitative approach to analyze the different psychological processes associated to the collective memories formation of upheavals on a large scale. This thesis explores the opportunities of applying quantitative methods to the study of collective memories in a collaborative environment such as the English Wikipedia. First, the presence of commemoration processes in Wikipedia articles and talk pages about traumatic events will be investigated through the analysis of edit activity patterns. Second, natural language processing techniques will be applied to detect differences in the collective representations of traumatic and non traumatic events, in the temporal focus of old and recent traumatic events, and in the representations of natural and human-made disasters. Third, the temporal evolution of language related to emotional, cognitive and social processes will be analyzed in the talk pages of two different emotional upheavals, the 2005 London bombings and the 2011 Egyptian revolution. The results will confirm the interpretation of Wikipedia as a global memory place, and highlight specific psychological processes related to the formation of collective memories of different types of traumatic events, opening the way to the quantitative study of collective memory formation in digital collaborative environments.
38

Socially aware motion planning of assistive robots in crowded environments

Colombo, Alessio January 2015 (has links)
People with impaired physical or mental ability often find it challenging to negotiate crowded or unfamiliar environments, leading to a vicious cycle of deteriorating mobility and sociability. In particular, crowded environments pose a challenge to the comfort and safety of those people. To address this issue we present a novel two-level motion planning framework to be embedded efficiently in portable devices. At the top level, the long term planner deals with crowded areas, permanent or temporary anomalies in the environment (e.g., road blocks, wet floors), and hard and soft constraints (e.g., "keep a toilet within reach of 10 meters during the journey", "always avoid stairs"). A priority tailored on the user's needs can also be assigned to the constraints. At the bottom level, the short term planner anticipates undesirable circumstances in real time, by verifying simulation traces of local crowd dynamics against temporal logical formulae. The model takes into account the objectives of the user, preexisting knowledge of the environment and real time sensor data. The algorithm is thus able to suggest a course of action to achieve the user’s changing goals, while minimising the probability of problems for the user and other people in the environment. An accurate model of human behaviour is crucial when planning motion of a robotic platform in human environments. The Social Force Model (SFM) is such a model, having parameters that control both deterministic and stochastic elements. The short term planner embeds the SFM in a control loop that determines higher level objectives and reacts to environmental changes. Low level predictive modelling is provided by the SFM fed by sensors; high level logic is provided by statistical model checking. To parametrise and improve the short term planner, we have conducted experiments to consider typical human interactions in crowded environments. We have identified a number of behavioural patterns which may be explicitly incorporated in the SFM to enhance its predictive power. To validate our hierarchical motion planner we have run simulations and experiments with elderly people within the context of the DALi European project. The performance of our implementation demonstrates that our technology can be successfully embedded in a portable device or robot.
39

Adaptive Personality Recogntion from Text

Celli, Fabio January 2012 (has links)
We address the issue of domain adaptation for automatic Personality Recognition from Text (PRT). The PRT task consists in the classification of the personality traits of some authors, given some pieces of text they wrote. The purpose of our work is to improve current approaches to PRT in order to extract personality information from social network sites, which is a really challenging task. We argue that current approaches, based on supervised learning, have several limitations for the adaptation to social network domain, mainly due to 1) difficulties in data annotation, 2) overfitting, 3) lack of domain adaptability and 4) multilinguality issues. We propose and test a new approach to PRT, that we will call Adaptive Personality Recognition (APR). We argue that this new approach solves domain adaptability problems and it is suitable for the application in Social Network Sites. We start from an introduction that covers all the background knowledge required for understanding PRT. It includes arguments like personality, the the Big5 factor model, the sets of correlations between language features and personality traits and a brief survey on learning approaches, that includes also feature selection and domain adaptation. We also provide an overview of the state-of-theart in PRT and we outline the problems we see in the application of PRT to social network domain. Basically, our APR approach is based on 1) an external model: a set of features/correlations between language and Big5 personality traits (taken from literature); 2) an adaptive strategy, that makes the model fit the distribution of the features in the dataset at hand, before generating personality hypotheses; 3) an evaluation strategy, that compares all the hypotheses generated for each single text of each author, computing confidence scores. This allows domain adaptation, semi-supervised learning and the automatic extraction of patterns associated to personality traits, that can be added to the initial correlation set, thus combining top-down and bottom-up approaches. The main contributions of our approach to the research in the field of PRT are: 1) the possibility to run top-down PRT from models taken from literature, adapting them to new datasets; 2) the definition of a small, language-independent and resource-free feature/ correlation set, tested on Italian and English; 3) the possibility to integrate top-down and bottom-up PRT strategies, allowing the enrichment of the initial feature/correlation from the dataset at hand; 4) the development of a system for APR, that does not require large labeled datasets for training, but just a small one for testing, minimizing the data annotation problem. Finally, we describe some applications of APR to the analysis of personality in online social network sites, reporting results and findings. We argue that the APR approach is very useful for Social Network Analysis, social marketing, opinion mining, sentiment analysis, mood detection and related fields.
40

The Implicit Cognitive Mechanisms of Morality and Theory of Mind in Autism

Osler, Gabriele 19 May 2022 (has links)
Perception of moral violations and people’s misbehaviours are crucial elements that allow people to live in the society. The literature suggested that both explicit and implicit processes are involved in the moral cognition (Cameron et al., 2012). However still nowadays, the majority of the literature focused only on the explicit aspects of morality, while scarce attention was given to the study of implicit moral attitudes (Cameron et al., 2018). Furthermore, researchers on morality are currently attracting by the investigation of moral cognition in people with impairments in social cognition (e.g., people with autism spectrum disorder; ASD) who may process the moral violations differently compared neurotypical people (see e.g., Gallese, 2006), However, this line of research is at the beginning stage, and the use of implicit measures to understand the mechanisms underpinning the morality in autism (or in people with high autistic traits) have not yet been considered in previous studies. The present dissertation aimed to investigate important aspects of moral cognition that currently are still under-investigated in literature, offering a wider view on implicit aspects of morality in autism. Through six experiments, this work wanted to provide new empirical findings concerning the implicit mechanisms underpinning moral cognition in both neurotypical and autistic people without intellectual disability. Experiment 1 and 2 According to Moral Foundation Theory (Graham et al., 2013) specific emotions are associated to different types of moral violations. For instance, when people perceive that a victim is physically or emotionally harmed by someone else, they feel anger against the perpetrator. By contrast, people feel disgust when they perceive that someone ate inedible food or made blasphemous practices (Haidt et al., 1993). However, empirical finding that assessed the link between different types of moral violations and specific emotions showed mixed results. Indeed, it was suggested that other important factors might also modulate the relations between different moral violations and emotions (Atari et al., 2020; Kemper & Newheiser, 2018). Specifically, the benign violation hypothesis (McGraw & Warren, 2010) claimed that sometimes people could perceive moral violations as amusing, and this specific emotion seems elicited by specific contextual (e.g., psychological distance) as well as interpersonal factors (e.g., humor traits). However, previous studies never tested whether people perceive amusement in response to all types of moral violation, or whether amusement emerged only in response to specific norm violations (e.g., purity violations). Furthermore recently, Dempsey and colleagues (2020a) emphasized the importance to test the assumptions of Moral Foundation Theory in autistic spectrum disorder (ASD). Interviewing six autistic participants, the authors found that the participants endorsed all moral domains as morally relevant. However, the relations between emotional reaction and moral domains in autism have never been tested, as well as whether autistic people perceive moral violations as benign and amusing. In the first two experiments of this thesis, it was assessed the amusement reaction in response to different types of moral violations (purity vs. harm) and extending such investigation involving a group of autistic participants. Furthermore, the studies conducted so far on moral cognition has prevalently used explicit methodology. By contrast, in these experiments it was assessed the emotional reaction in response to different types of moral violations analysing the spontaneous facial expressions in neurotypical people (experiment 1), and the cardiac response of both typical and autistic individuals (experiment 2). The aim of these experiments was to investigate whether neurotypical people perceive specific types of moral violations as benign and amusing, and then whether autistic people expressed different emotions compared neurotypical people in response to different types of moral violations. Experiment 3, 4 and 5 As opposite of Moral Foundation Theory, the Dyadic Model claimed that a sine qua non for moral perception is the implicit activation of harm (Gray et al., 2012). In other words, always immorality automatically activates perceptions of harm regardless of someone is harmed (acts which involve physical and emotional damage; harm violations) or not (i.e., acts which involve impure and degradation behaviour; purity violations). Indeed, empirical evidence suggested that, during the reading of a scenario depicting a harmless moral violation in the domain of purity, people nevertheless implicitly infer that harm was involved. Across three experiments, we tested whether ostensibly harmless moral violations activated implicitly the harm concept. In all these three experiments the participants’ implicit attitude in response to moral violations was tested by using the affective misattribution paradigm (AMP; Payne et al., 2014), which is one of the most reliable methods to assess individual unconscious mental processes in psychology (Znanewitz et al., 2018). Specifically, Experiment 3 aimed to replicate previous findings which highlighted the implicit role of harm in response to harmless moral violations (Gray et al., 2014). Experiment 4 extended previous results with an investigation aimed to verify whether people with high autistic traits showed less implicit activation of harm in response to harmless scenarios than people with low autistic traits. Finally, Experiment 5 aimed to investigate whether autistic people (without intellectual disability) implicitly activated the harm concept in response to harmless scenarios as well as neurotypicals. Experiment 6 The majority of the studies which investigated the moral cognition in autism started to the premise that autistic people have a selective impairment in Theory of Mind (ToM; Moran et al., 2011), which is also a fundamental skill to understand the moral behaviours (e.g., Hamlin, 2015). However, the literature is far to show the role of Theory of Mind in the moral processing. Recently, it was suggested that ToM is a cognitive skill that involves both explicit and implicit processes (e.g., Southgate et al., 2007). The born of new implicit measures to assess the ToM brought an initial enthusiasm in this area of study. For instance, studies on clinical psychology, using both explicit and implicit ToM measures in order to understand selective ToM difficulties by autistic individuals without intellectual disability showed that, although this population presented high performance to explicit ToM tasks, they showed lower performance in the newer implicit ToM tasks compared to neurotypical participants (e.g., Schuwerk et al., 2015; Senju et al., 2009). Late unfortunately, these interesting results were put into question by other studies, which argued against the reliability of these new implicit measures (Kulke et al., 2018b). Moreover, another important gap in implicit ToM literature was that, while previous models in developmental psychology and psychopathology have suggested a link between attachment and the development of ToM, the relationship between attachment and implicit ToM has been so far neglected. In this experiment, we assessed both implicit and explicit mental state attribution, by means of a new implicit ToM task, as well as some attachment dimensions, comparing a group of autistic participants, without intellectual disability, and a control group. Specifically, in this experiment it was investigated participants’ spontaneous anticipatory look in response to false beliefs tasks using the eye-tracking methodology (one of the most used implicit ToM paradigms in literature). This study aimed to investigate the Theory of Mind (ToM) at both explicit and implicit level (Southgate et al., 2007), investigating possible differences between neurotypical individuals and autistic people. Furthermore, in the same study it was also investigated the link between the participants’ attachment and the explicit and implicit ToM skills. Moral cognition is a complex object of study that should be investigated with a multi-dimensional approach. In the experiments described in this thesis it was proposed a combined methodology that allowed to gather both explicit and implicit cognitive and emotional mechanisms that stay at the root of the moral judgment. Thanks to this approach it was found that deliberate and involuntary processes did not present convergent responses in the moral cognition of participants. Indeed, self-reported emotions seem to show divergent responses compared to the spontaneous facial expressions and the cardiac response to moral violations. These results support extant literature that raises concerns about the intuitionist assumptions of the moral cognition based on the assessment of only explicit responses of participants (e.g., Gutierrez & Giner-Sorolla, 2007; Nosek, 2007). Furthermore, this thesis highlighted the importance of studying the moral cognition in people affected by the autism spectrum disorder. Despite the social impairments that this neurodevelopmental disorder presents, we found that autistic people with cognitive level in average with the typical population, did not show any differences compared to the control group in both explicit and implicit mechanisms of moral cognition. These interesting findings may bring important theoretical reflections in moral and clinical psychology.

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