974 resultados para visual perspective


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When recalling autobiographical memories, individuals often experience visual images associated with the event. These images can be constructed from two different perspectives: first person, in which the event is visualized from the viewpoint experienced at encoding, or third person, in which the event is visualized from an external vantage point. Using a novel technique to measure visual perspective, we examined where the external vantage point is situated in third-person images. Individuals in two studies were asked to recall either 10 or 15 events from their lives and describe the perspectives they experienced. Wide variation in spatial locations was observed within third-person perspectives, with the location of these perspectives relating to the event being recalled. Results suggest remembering from an external viewpoint may be more common than previous studies have demonstrated.

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Recent memories are generally recalled from a first-person perspective whereas older memories are often recalled from a third-person perspective. We investigated how repeated retrieval affects the availability of visual information, and whether it could explain the observed shift in perspective with time. In Experiment 1, participants performed mini-events and nominated memories of recent autobiographical events in response to cue words. Next, they described their memory for each event and rated its phenomenological characteristics. Over the following three weeks, they repeatedly retrieved half of the mini-event and cue-word memories. No instructions were given about how to retrieve the memories. In Experiment 2, participants were asked to adopt either a first- or third-person perspective during retrieval. One month later, participants retrieved all of the memories and again provided phenomenology ratings. When first-person visual details from the event were repeatedly retrieved, this information was retained better and the shift in perspective was slowed.

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The number of studies examining visual perspective during retrieval has recently grown. However, the way in which perspective has been conceptualized differs across studies. Some studies have suggested perspective is experienced as either a first-person or a third-person perspective, whereas others have suggested both perspectives can be experienced during a single retrieval attempt. This aspect of perspective was examined across three studies, which used different measurement techniques commonly used in studies of perspective. Results suggest that individuals can experience more than one perspective when recalling events. Furthermore, the experience of the two perspectives correlated differentially with ratings of vividness, suggesting that the two perspectives should not be considered in opposition of one another. We also found evidence of a gender effect in the experience of perspective, with females experiencing third-person perspectives more often than males. Future studies should allow for the experience of more than one perspective during retrieval.

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Elemento centrale della presente tesi dottorale è il costrutto di perspective taking, definibile come l’abilità, emergente nei bambini intorno a 4-5 anni, di assumere la prospettiva altrui secondo tre differenti dimensioni: emotiva, cognitiva e percettiva (Bonino, Lo Coco, Tani, 1998; Moll e Meltzoff, 2011). Dalla letteratura emerge come il perspective taking, in quanto abilità di comprensione sociale, rivesta un ruolo adattivo e sia fondamentale per lo sviluppo, non solo intellettivo, ma anche per la formazione di adeguate capacità relazionali e sociali (Jenkins e Astington, 2000; Weil et al., 2011). Sulla base di tali considerazioni, alcuni ricercatori si sono interrogati sulla possibilità di insegnare questa abilità, elaborando specifiche e differenti procedure di intervento finalizzate ad incrementare l’abilità di perspective taking sia in bambini a sviluppo normativo (Cigala e Mori, 2015), sia in gruppi di bambini a sviluppo atipico (Fisher e Happé, 2005; Heagle e Rehfeldt, 2006; Paynter e Peterson, 2012). A partire da una prospettiva teorica socio-costruzionista, secondo cui l’acquisizione del perspective taking si configura come un’impresa di co-costruzione continua, all’interno di interazioni quotidiane con figure significative per il bambino, si è deciso di analizzare il perspective taking non solo in relazione a variabili individuali (genere, età del bambino, regolazione emotiva, abilità sociali) ma anche e soprattutto a variabili contestuali quali le caratteristiche del contesto familiare (caratteristiche disposizionali e stili genitoriali di socializzazione emotiva, presenza di fratelli). Sono stati in particolare indagati un contesto familiare normativo ed uno caratterizzato da maltrattamento psicologico, contrassegnato dalla reiterazione di comportamenti inadeguati (critiche svalutanti, denigrazione, umiliazione, minacce verbali, indifferenza) nei confronti del minore, che convogliano sul bambino l’idea di non essere amato e di avere poco valore. Con i termini “a sviluppo tipico” si intendono i bambini per i quali non sussista una diagnosi clinica e con quelli di “famiglie normative” ci si riferisce a nuclei per i quali non ci siano state segnalazioni da parte dei Servizi Educativi e Sociali di riferimento, indipendentemente dalle caratteristiche della composizione del nucleo familiare (nucleare, estesa, multipla, ricostituita o ricomposta). Tale studio rientra in un ampio progetto di ricerca e formazione che ha coinvolto più di 250 prescolari frequentanti 8 scuole dell’infanzia e 15 comunità terapeutiche e di accoglienza mamma-bambino, situate in differenti province del Nord Italia. Il gruppo dei partecipanti alla ricerca si è composto di 256 bambini in età prescolare, compresa quindi tra 3 e 5 anni (M=54,39; DS=5,705): 128 maschi (M=54,08; DS=5,551) e 128 femmine (M=54,70; DS=5,860). In particolare, 213 bambini appartenevano a famiglie normative e 43 a nuclei familiari caratterizzati dalla presenza di maltrattamento psicologico. Oltre ai bambini, la ricerca ha previsto il coinvolgimento di 155 coppie di genitori, 43 madri ospitate in comunità, 18 insegnanti e 30 operatori. Obiettivo centrale è stato l’indagine della possibilità di poter promuovere il perspective taking in bambini di età prescolare a sviluppo tipico appartenenti a due differenti tipologie di contesto familiare (normativo e psicologicamente maltrattante), attraverso l’applicazione di uno specifico percorso di training di natura “ecologica” all’interno della scuola dell’infanzia e della comunità, assimilabile a quelli di tipo evidence based. In particolare è stata prevista una procedura quasi sperimentale di tipo pre-test, training, post-test e follow-up. Dopo una preliminare valutazione dello sviluppo del perspective taking nelle sue tre componenti, in bambini appartenenti ad entrambi i contesti, si è voluto verificare l’esistenza di eventuali relazioni tra questa abilità ed alcune capacità socio-emotive dei bambini, con particolare riferimento alla disposizione prosociale, rilevate nel contesto scolastico attraverso differenti metodologie (osservazioni dirette non partecipanti, questionari self report compilati dalle insegnanti). Inoltre, data l’importanza del contesto familiare per lo sviluppo di tale abilità, la ricerca ha avuto lo scopo di verificare l’esistenza di eventuali relazioni tra le abilità di perspective taking mostrate dai bambini e gli stili di socializzazione emotiva delle figure familiari, caratteristiche di entrambi i contesti (maltrattante e non maltrattante). È stato inoltre previsto uno studio di confronto tra i due campioni rispetto alle dimensioni indagate. I risultati ottenuti sono stati particolarmente interessanti. Innanzitutto, le esperienze di training hanno determinato, in entrambi i contesti, miglioramenti nell’abilità dei prescolari di mettersi nei panni altrui. Tale training ha inoltre dimostrato effetti positivi sulla competenza sociale dei bambini, che, a seguito del percorso, hanno manifestato un incremento dei comportamenti prosociali ed una diminuzione di quelli aggressivi. Per lo studio in contesto normativo, è stato inoltre dimostrato un mantenimento delle abilità acquisite a seguito del training attraverso un follow-up a distanza di 4 mesi dal termine dell’intervento. Il positivo esito di tale percorso sembra quindi rappresentare un’importante risorsa per i prescolari, soprattutto in caso di situazioni in cui l’abilità di perspective taking risulti deficitaria. Il confronto dei due gruppi a seguito del training ha evidenziato come non siano emerse differenze significative, rispetto al perspective taking, ad eccezione della dimensione emotiva, in cui le prestazioni dei prescolari maltrattati sono risultate inferiori, come già evidenziato prima del training. Tali risultati non giungono però inaspettati, poiché, sebbene il percorso abbia agito significativamente sull’abilità di comprensione delle emozioni altrui di questi bambini, non si configura come sufficiente a ristrutturare così profondamente le problematiche presentate. Interessanti sono stati altresì i risultati ottenuti dall’analisi degli stili di socializzazione emotiva, dei genitori (madri e padri) dei prescolari non maltrattati e delle mamme dei bambini residenti in comunità. In particolare è emerso come, stili accettanti e di tipo coaching nei confronti delle emozioni negative dei bambini, siano positivamente correlati con il perspective taking dei figli, e come all’opposto, stili rifiutanti rispetto alle espressioni emotive negative dei propri bambini, mostrino correlazioni negative con le abilità di perspective taking dei figli. Oltre ad interessi di ordine teorico e metodologico, è possibile quindi affermare come, il presente lavoro di tesi, sia stato guidato da fini applicativi, affinché la ricerca scientifica possa tradursi in pratiche educative quotidiane da applicare ai contesti di vita significativi per i bambini.

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Adopting another’s visual perspective is exceedingly common and may underlie successful social interaction and empathizing with others. The individual differences responsible for success in perspective-taking, however, remain relatively undiscovered. We assessed whether gender and autistic personality traits in normal college student adults predict the ability to adopt another’s visual perspective. In a task differentially recruiting VPT-1 which involves following another’s line of sight, and VPT-2 which involves determining how another may perceive an object differently given their unique perspective (VPT-2), we found effects of both gender and autistic personality traits. Specifically, we demonstrate slowed VPT-2 but not VPT-1 performance in males and females with relatively high ASD-characteristic personality traits; this effect, however was markedly stronger in males than females. Results contribute to knowledge regarding ASD-related personality traits in the general population and the individual differences modulating perspective-taking abilities.

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While some aspects of social processing are shared between humans and other species, some aspects are not. The former seems to apply to merely tracking another's visual perspective in the world (i.e., what a conspecific can or cannot perceive), while the latter applies to perspective taking in form of mentally “embodying” another's viewpoint. Our previous behavioural research had indicated that only perspective taking, but not tracking, relies on simulating a body schema rotation into another's viewpoint. In the current study we employed Magnetoencephalography (MEG) and revealed that this mechanism of mental body schema rotation is primarily linked to theta oscillations in a wider brain network of body-schema, somatosensory and motor-related areas, with the right posterior temporo-parietal junction (pTPJ) at its core. The latter was reflected by a convergence of theta oscillatory power in right pTPJ obtained by overlapping the separately localised effects of rotation demands (angular disparity effect), cognitive embodiment (posture congruence effect), and basic body schema involvement (posture relevance effect) during perspective taking in contrast to perspective tracking. In a subsequent experiment we interfered with right pTPJ processing using dual pulse Transcranial Magnetic Stimulation (dpTMS) and observed a significant reduction of embodied processing. We conclude that right TPJ is the crucial network hub for transforming the embodied self into another's viewpoint, body and/or mind, thus, substantiating how conflicting representations between self and other may be resolved and potentially highlighting the embodied origins of high-level social cognition in general.

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A interdisciplinaridade entre a música e as artes visuais tem sido explorado por conceituados teóricos e filósofos, embora não exista muito na área da interpretação visual do grafismo de partituras musicais. Este estudo investiga como os grafismos na notação e símbolos musicais afectam o intérprete na sua transformação em som, com referência especial a partituras contemporâneas, que utilizam notação menos convencional para a criação de uma interpretação por sugestão. Outras relações entre o som e o visual são exploradas, incluindo a sinestesia, a temporalidade e a relação entre obra de arte e público. O objectivo desta dissertação é a de constituir um estudo inovativo sobre partituras musicais contemporâneas, simultaneamente do ponto de vista musical e visual. Finalmente, também vai mais longe, incluindo desenhos da própria autora inspirados e motivados pela música. Estes já não cumprem uma função de notação convencional para o músico, embora existe uma constante possibilidade de uma reinterpretação. ABSTRACT; The inter-disciplinarity between music and visual art has been explored by leading theorists and philosophers, though very little exists in the area of the visual interpretation of graphic musical scores. This study looks at how the graphics of musical notation and symbols affect the performer in transforming them into sound, with particular reference to contemporary scores that use non¬conventional notation to create an interpretation through suggestion. Other sound-visual relationships are explored, including synaesthesia, temporality and the interconnection between work of art and audience or public. This dissertation aims to be an innovative study of contemporary musical scores, from a musical as well as visual perspective. Finally, it takes a step further with drawings of my own, directly inspired and motivated by the music. These no longer fulfil a conventionally notational function for the musician, yet the potential for a re-interpretation is ever-present.

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Little is known about the functional and neural architecture of social reasoning, one major obstacle being that we crucially lack the relevant tools to test potentially different social reasoning components. In the case of belief reasoning, previous studies tried to separate the processes involved in belief reasoning per se from those involved in the processing of the high incidental demands such as the working memory demands of typical belief tasks (e.g., Stone et al., 1998; Samson et al., 2004). In this study, we developed new belief tasks in order to disentangle, for the first time, two perspective taking components involved in belief reasoning: (1) the ability to inhibit one’s own perspective (self-perspective inhibition) and (2) the ability to infer someone else’s perspective as such (other-perspective taking). The two tasks had similar demands in other-perspective taking as they both required the participant to infer that a character has a false belief about an object’s location. However, the tasks varied in the self-perspective inhibition demands. In the task with the lowest self-perspective inhibition demands, at the time the participant had to infer the character’s false belief, he or she had no idea what the new object’s location was. In contrast, in the task with the highest self-perspective inhibition demands, at the time the participant had to infer the character’s false belief, he or she knew where the object was actually located (and this knowledge had thus to be inhibited). The two tasks were presented to a stroke patient, WBA, with right prefrontal and temporal damage. WBA performed well in the low-inhibition false belief task but showed striking difficulty in the task placing high self-perspective inhibition demands, showing a selective deficit in inhibiting self-perspective. WBA also made egocentric errors in other social and visual perspective taking tasks, indicating a difficulty with belief attribution extending to the attribution of emotions, desires and visual experiences to other people. The case of WBA, together with the recent report of three patients impaired in belief reasoning even when self-perspective inhibition demands were reduced (Samson et al., 2004), provide the first neuropsychological evidence that (a) the inhibition of one’s own point of view and (b) the ability to infer someone else’ s point of view, rely on distinct neural and functional processes.

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This article has as main objective to reflect on the Dubsmash self-dubbing mobile app, from the centrality of the studies of Dialogic Discourse Analysis, especially with a focus on verbal-visual perspective. The paper features through the virtual sphere notion, the relationship between an mobile app in which the subject can dub scenes, music or viral Internet and the concrete enunciation as concrete possibility of saying, in words and images of the subject and his other. The text is interested specifically for videos compounds based on a textual fragment of a  Babylon scene, a Brazilian soap opera. The results point to a desire to performance art on the Internet, permeated by Bakhtinian notions like finish, completeness, externality and authorship. The work also shows that it is urgent the university look into the virtual sphere and their innovations while discursive projects and language  movements, constitutive of different interaction fields to be analyzed.

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L’étude de l’orientation mentale (OM), soit l’habileté des parents à concevoir et à traiter leur enfant comme un individu disposant d’une vie mentale autonome et active (Meins, 1997), a gagné en intérêt grâce à la démonstration de ses associations avec plusieurs sphères du développement de l’enfant, entre autres avec le style d’acquisition linguistique chez les enfants de 20 mois ainsi que le développement de la théorie de l’esprit chez les enfants d’âge préscolaire (p. ex., Meins & Fernyhough, 1999). En dépit de ces résultats, l’étude du développement du vocabulaire et des stades initiaux de la théorie de l’esprit chez les enfants a été négligée dans cette littérature. La présente thèse est composée de trois articles empiriques et vise à combler certaines lacunes de la littérature actuelle. Le premier article vise à examiner les liens longitudinaux entre l’OM maternelle et le vocabulaire expressif chez les enfants de 2 ans. Les deuxième et troisième articles ont pour but d’évaluer les relations longitudinales entre l’OM maternelle, la sécurité d’attachement des enfants et les toutes premières articulations de la théorie de l’esprit chez les enfants de 2 ans, puis 2 ans plus tard, avec la théorie de l’esprit chez les enfants de 4 ans. Les données des trois articles proviennent de cinq visites effectuées au domicile de 84 dyades mère-enfant. À 12 mois, l’OM maternelle a été mesurée lors de jeux libres mère-enfant à l’aide du système de codification de Meins et al. (2001). À 15 mois, la sécurité d’attachement de l’enfant a été mesurée par un observateur avec le Q-Sort d’attachement (Waters & Deane, 1985). À 2 ans, les mères ont évalué le langage de leur enfant à l’aide des inventaires MacArthur du développement de la communication (Dionne, Tremblay, Boivin, Laplante, & Pérusse, 2003). Finalement, la théorie de l’esprit de l’enfant a été mesurée à 2 et 4 ans à l’aide de diverses tâches expérimentales (Carlson, Mandell, & Williams, 2004). Les résultats du premier article indiquent que l’OM maternelle est associée au développement du vocabulaire expressif des enfants de 2 ans. Les résultats des deuxième et troisième articles indiquent que la compréhension des enfants de 2 et 4 ans aux tâches de théorie de l’esprit est associée à l’OM maternelle. De plus, ces deux articles ont démontré que les garçons, mais pas les filles, présentant des comportements d’attachement davantage sécures ont obtenu de meilleures performances à une tâche demandant la compréhension des perspectives visuelles de leur mère à 2 ans et de celles d’une étrangère à 4 ans. En conclusion, les résultats de la thèse suggèrent que l’utilisation que les mères font de commentaires mentaux à 12 mois semble favoriser l’acquisition de mots dans le vocabulaire expressif de leur enfant à 2 ans ainsi que le développement d’une meilleure compréhension aux tâches de théorie de l’esprit à 2 et 4 ans.

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Using Azoulay's frame of the civil gaze, this chapter examines selected Second World War images, catalogued under 'interpreter' in the IWM's photographic archive, looking at representative situations in which interpreters typically operate in wartime - communicating with clandestine forces, liaising between the army and civilians, and dealing with the aftermath of war.

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As redes de Veículos Aéreos Não Tripulados (VANTs) têm potencializado o uso de aplicações multimídia devido ao seu elevado grau de mobilidade e versatilidade. Esse crescimento ocorre pela facilidade de acesso e utilização dos VANTs quadricópteros em diversas aplicações civis. As aplicações civis têm como característica principal o uso de dados multimídia, como vídeos, por oferecerem uma perspectiva visual mais detalhada do ambiente. A transmissão desse tipo de dado nas redes VANTs por meio de protocolos geográ cos melhora a taxa de entrega de dados. Entretanto, ela ainda não é su ciente para prover qualidade de experiência (QoE). Isso ocorre devido ao elevado grau de mobilidade dos quadricópteros que ocasiona quebras de enlace durante a transmissão multimídia. Por consequência, ela prejudica a conectividade e induz a altas perdas de pacotes e atrasos. Então, este trabalho propõe um mecanismo, chamado RCRV, com base em técnicas de predição de mobilidade em termos de posicionamento e da estimativa do tempo de enlace para realçar a tomada de decisão de roteamento em protocolos geográ cos. Além disso, ele utiliza critérios que consideram os comportamentos de mobilidade dos VANTs. Assim, o RCRV possibilita o prolongamento da conectividade nas redes VANTs. O RCRV é um mecanismo que complementa as estratégias de roteamento dos protocolos geográ cos. Desse modo, adicionou-se o RCRV ao protocolo GPSR a m de avaliar os ganhos e benefícios do mecanismo em um protocolo de roteamento geográ co. Simulações foram realizadas com diferentes velocidades e números de VANTs. Os resultados mostraram que o RCRV aumenta a conectividade da transmissão, melhorando a entrega do conteúdo multimídia e a qualidade do vídeo observado pelo usuário.

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Phenomenology is a critical component of autobiographical memory retrieval. Some memories are vivid and rich in sensory details whereas others are faded; some memories are experienced as emotionally intense whereas others are not. Sutin and Robins (2007) identified 10 dimensions in which a memory may vary—i.e., Vividness, Coherence, Accessibility, Sensory Details, Emotional Intensity, Visual Perspective, Time Perspective, Sharing, Distancing, and Valence—and developed a comprehensive psychometrically sound measure of memory phenomenology, the Memory Experiences Questionnaire (MEQ). Phenomenology has been linked to underlining stable dispositions—i.e. personality, as well as to a variety of positive/negative psychological outcomes—well-being and life satisfaction, depression and anxiety, among others. Using the MEQ, a cross-sectional and a longitudinal study were conducted on a large sample of American and Italian adults. In both studies, participants retrieved two ‘key’ personal memories, a Turning Point and a Childhood Memory, and rated the affect and phenomenology of each memory. Participants also completed self-reported measures of personality (i.e. Neuroticism and Conscientiousness), and measures of depression, well-being and life satisfaction. The present research showed that phenomenological ratings tend (a) to cross-sectionally increase across adulthood (Study 1), and (b) to be moderately stable over time, regardless the contents of the memories (Study 2). Interrelations among memory phenomenology, personality and psychological outcome variables were also examined (Study 1 and Study 2). In particular, autobiographical memory phenomenology was proposed as a dynamic expression of personality functioning that partially explains adaptive/maladaptive psychological outcomes. In fact, the findings partially supported the hypothesized mediating effect of phenomenology on the personality association with psychological outcomes. Implications of the findings are discussed proposing future lines of research. In particular, the need for more longitudinal studies is highlighted, along with the combined application of both self-report questionnaires and narrative measures.

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Peer reviewed

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Peer reviewed