Nous explorons l’intrication d’états mixtes, particulièrement d’états de Hall quantiques, par le biais de l’information mutuelle (MI) et de la négativité logarithmique (LN) fermionique. Cette dernière est une bonne mesure d’intrication pour des états mixtes quantiques car elle ne capture pas de corrélations classiques comme la MI. Nous étudions des géométries tripartites qui contiennent des coins où, en plus de la loi du périmètre standard, l’intrication reçoit une contribution angulaire : le terme de coin. Avec l’entropie d’intrication, ce terme a été étudié pour divers états purs, y compris les états de Hall quantiques entier (IQH), et il a été constaté que la fonction angulaire est presque universelle ; elle ne dépend pas des détails microscopiques de l’état en considération. Nous faisons des prédictions sur la forme du terme de coin de la LN et de la MI en utilisant des propriétés générales. Nous testons numériquement nos prédictions sur des états IQH à différents remplissages et sur différentes géométries en utilisant deux méthodes, une dans l’espace des impulsions et une dans l’espace réel. Dans les états fondamentaux, nous trouvons que les termes de coin de la MI et de la LN suivent également le comportement quasi-universel. À température finie et des coins d’angle π/2, le coefficient de la loi du périmètre et les termes de coin atteignent d’abord un plateau puis décroissent rapidement avec la température. Les effets de température finie sont étudiés davantage en travaillant dans les limites de faibles et fortes températures. / We explore the entanglement of quantum mixed states, with an emphasis on quantum Hall states, via the mutual information (MI) and the fermionic logarithmic negativity (LN). The latter is a good measure of entanglement for quantum mixed states as it does not capture classical correlations, unlike the MI. We study tripartite geometries with corners where in addition to the standard boundary law, the entanglement receives an angle-dependent contribution : the corner term. Using the entanglement entropy, this corner term has been studied for various pure states, including integer quantum Hall (IQH) states, and it was found that the angle-dependent function is almost super-universal; it does not depend on the microscopic details of the state under consideration. First, we make predictions on the form of the corner term for the LN and MI using general properties. Then, we test our predictions numerically on IQH states at different fillings and on different geometries, using two approaches, one in momentum space and one in real space. In groundstates, we find that the corner terms of the MI and LN also follow the quasi-universal behaviour. At finite temperatures and angle π/2, we find that the boundary law coefficient and corner terms first plateau then decay rapidly with temperature. The finite-temperature effects are studied in more details by working in low and high temperature limits.

<p> Hearing provides a vital means for infants to discover their environment and communicate with their caregivers. Identifying and discriminating the pitch of sounds is critical for infants in order to acquire information from speech and music. Therefore, how infants process pitch is a fundamental question in research on auditory development. The focus of this dissertation is the use of auditory event related potentials (ERPs) derived from electroencephalogram (EEG) recordings to examine the maturation of pitch perception in early infancy. </p> <p> Pitch perception in adults has been extensively studied, but little is known about the development of pitch perception during early infancy. Infant mismatch responses (MMRs) are ERP components that are elicited by infrequent changes in auditory stimuli. MMR is a promising tool to study infant pitch perception because it can be elicited without attention or a behavioural response. However, previous studies on MMRs in infants have reported inconsistent results, some reporting frontally positive responses while others report frontally negative mismatch responses. In Chapter 2, we examined MMRs to simple pitch changes in infants between 2 and 4 months of age and found both types of infant MMRs are present, but the morphological distributions and developmental trajectories are different. In Chapter 3, we reported that both types of infant MMRs are affected similarly by the amplitude of pitch change but only the positive MMR becomes stronger when stimulus presentation rate increases, which suggests different neural mechanisms for the two types of infant MMRs. The studies reported in Chapter 4 found that only the negative MMR can be elicited readily by changes in pitch patterns, suggesting that it may be functionally similar to mismatch negativity (MMN) in adults. </p> <p> The experiments in Chapter 5 used MMR as the indication of whether infants automatically integrate the frequency components of a complex tone into a single pitch percept, even when the fundamental frequency component (corresponding to the pitch) is removed. Previous studies show that adult MMN is elicited by a pitch change in such tones missing the fundamental. Previous behavioural studies using a conditioned head tum method show that 7-month-olds also perceive pitch with tones missing the fundamental. The results of the present study indicate that infants as young as 4 months of age integrate components into a single pitch percept, but evidence for this in younger infants could not be found. </p> <p> In conclusion, the current dissertation established a promising procedure utilizing infant MMR to study infant pitch perception and contributed to the knowledge of early development of pitch perception by demonstrating dramatic changes in brain response to pitch in harmonic tones in infants between 2 and 4 months old, and to pitch in tones in infants missing the fundamental between 3 and 4 months old . </p> / Thesis / Doctor of Philosophy (PhD)

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La recherche sur le comportement politique a souvent privilégié les données provenant des cultures occidentales, mais cette approche risque d’occulter les subtilités du comportement humain en dehors de ce cadre. Les chercheurs risquent ainsi de tomber dans le piège de généraliser à partir de contextes spécifiques, ce qui peut conduire à des conclusions erronées. Cette thèse aborde cette problématique en examinant les attitudes et les comportements politiques en Asie de l’Est à travers le prisme de la culture confucéenne. Son objectif principal est d’interroger certaines idées établies sur le comportement politique afin d’évaluer leur pertinence au-delà des frontières occidentales. Cette thèse est composée de trois chapitres empiriques distincts. Chacun d’entre eux aborde un domaine spécifique où la culture peut exercer son influence. Le premier chapitre empirique (chapitre 2) se penche sur le biais de négativité dans les attitudes des citoyens envers l’autorité politique. Il est bien établi que les évaluations politiques des citoyens sont plus fortement influencées par des perceptions négatives que positives des caractéristiques, des événements et des résultats politiques. Dans ce chapitre, j’avance l’idée que la culture joue un rôle crucial mais souvent sous-estimé dans ces biais de négativité. Une analyse multiniveau utilisant la World Values Survey (WVS) met en lumière que le biais de négativité dans la satisfaction à l’égard des gouvernements nationaux diminue à mesure que le niveau de collectivisme dans une société augmente. En outre, j’explore l’impact des valeurs culturelles au niveau individuel en m’appuyant sur les données de l’Asian Barometer Survey (ABS). En accord avec les résultats de la WVS, je constate que le collectivisme atténue l’asymétrie négative-positive lorsque les citoyens évaluent l’autorité politique en fonction des performances gouvernementales. Ces découvertes soulignent l’importance de la prudence lorsqu’il s’agit de généraliser le biais de négativité comme un modèle décrivant uniformément les attitudes des citoyens envers l’autorité politique à travers le monde. Le deuxième chapitre empirique (chapitre 3) plonge dans le phénomène du biais de négativité dans la construction de la confiance généralisée, soit la confiance que les individus accordent aux membres de la société. Les études antérieures ont démontré que la confiance est relativement facile à ébranler, mais difficile à instaurer. Toutefois, je soutiens dans ce chapitre que la littérature sur le biais de négativité est ancrée dans des hypothèses individualistes et néglige les contextes collectivistes. À travers une expérience en ligne préenregistrée réalisée en Chine, je constate que l’exposition à des informations négatives sur le manque de fiabilité d’autres membres de la société a un impact plus marqué sur la confiance généralisée que l’exposition à des informations positives équivalentes sur la fiabilité de ces individus. Cependant, l’effet asymétrique de l’information sur la confiance est conditionné par les valeurs culturelles auto-attribuées par les participants. Les individus aux valeurs collectivistes élevées montrent moins de biais de négativité dans le processus de formation de la confiance. Ces résultats éclairent le rôle de la culture dans la compréhension de la dynamique de la confiance et appellent à une exploration plus approfondie des influences culturelles sur le biais de négativité. Le troisième chapitre empirique (chapitre 4) explore l’écart de participation électorale entre hommes et femmes. En Asie de l’Est, la participation politique des femmes n’a pas évolué au même rythme que le développement économique de la région. Cet écart est souvent imputé à l’influence de la culture confucéenne qui met l’accent sur la hiérarchie, l’ordre et l’obéissance. Toutefois, ce chapitre nuance cette perspective en mettant en avant comment certains aspects du Confucianisme, tels que la méritocratie, peuvent en réalité renforcer le rôle des femmes dans la société moderne en Asie de l’Est. Centré sur le contexte chinois, notamment sur l’institution historiquement significative du système d’examen civil (keju) basée sur Confucius, ce chapitre met en lumière l’impact durable des héritages méritocratiques sur les comportements contemporains. À l’aide de données provenant d’archives historiques et de la China General Social Survey, je découvre une corrélation négative entre les performances des ancêtres d’une préfecture aux examens keju et l’écart entre les sexes dans la participation aux élections villageoises contemporaine. Cette thèse contribue à notre compréhension de la relation entre la culture et l’engagement politique des citoyens. En se concentrant spécifiquement sur l’Asie de l’Est, cette étude représente l’une des rares investigations visant à étudier empiriquement l’influence culturelle sur les attitudes et les comportements politiques dans cette région. En plaidant en faveur d’une recherche qui va au-delà des échantillons “WEIRD”, elle ouvre la voie à de futures investigations dans des contextes globaux, ce qui permettra de développer des perspectives plus inclusives et nuancées dans le domaine de la recherche sur le comportement politique. / The political behavior literature has traditionally centered on data from Western cultures, but this tendency risks overlooking the complexities of human behavior outside the Western sphere. Researchers might fall into the trap of the exception fallacy when they propose generalized theory based on specific contexts. This dissertation addresses this issue by examining political attitudes and behaviors in East Asia through the lens of the Confucian culture. Its primary aim is to interrogate established theories of political behavior to determine their applicability beyond Western contexts. This dissertation is composed of three distinct empirical chapters. Each examines a specific domain where culture may exert its influence. The first empirical chapter (Chapter 2) investigates the negativity biases in citizens’ attitudes toward the political authority. In particular, we know that citizens’ political evaluations tend to be more strongly influenced by negative than positive perceptions of traits, events and policy outcomes. In this chapter, I argue that culture is a significant yet understudied correlate of negativity biases. A multilevel analysis using the World Values Survey (WVS) demonstrates that the negativity bias in national government satisfaction weakens as a society’s level of collectivism is higher. Next, I explore the effect of cultural values at the individual level with data from the Asian Barometer Survey (ABS). In line with the results from the WVS, I find that collectivism reduces the negative-positive asymmetry when citizens evaluate the incumbent authority on the basis of government performance. These results invite more caution when taking negativity biases as a general pattern that describes citizens’ attitudes toward political authority everywhere. The second empirical chapter (Chapter 3) examines the phenomenon of negativity bias in the formation of generalized trust, the trust that individuals have in the members of society. Previous research demonstrates that generalized trust is relatively easy to destroy but challenging to create. In this chapter, I argue that the negativity bias literature is based on individualist assumptions and overlooks collectivist contexts. Using a preregistered online experiment conducted in China, I find that receiving negative information about the untrustworthiness of other social members has a more profound impact on generalized trust than receiving comparable positive information about their trustworthiness. Nevertheless, the asymmetric effect of information on trust is contingent on participants’ self-rated cultural values. Individuals with higher collectivist values tend to exhibit less negativity bias in trust development. These results shed light on the role of culture in understanding the dynamics of trust formation and call for further exploration of cultural influences on negativity biases. The third empirical chapter (Chapter 4) explores the gender gap in electoral participation. East Asian women’s political participation has not kept pace with the region’s economic development. This discrepancy is often attributed to the influence of Confucian culture, which emphasizes hierarchy, order, and obedience. This chapter nuances this perspective by highlighting how certain elements of Confucianism, such as meritocracy, may actually empower modern-day East Asian women. This chapter focuses on the Chinese context, particularly the historically significant Confucian-based meritocratic institution known as the civil examination system (keju). I argue that historical meritocratic legacies can have a lasting impact on contemporary behavior, specifically by reducing the gender gap in political participation in local village elections. Using data from historical archives and the China General Social Survey, I find a negative correlation between the performance of a prefecture’s ancestors in the keju exams and the gender gap in village election turnout among present-day respondents. This dissertation contributes to the understanding of the relationship between culture and political attitudes and behavior. In particular, this study represents one of the few investigations aimed at empirically studying the cultural influence on political attitudes and behaviors in this region. By advocating for research beyond “WEIRD” samples, it sets the stage for future endeavors that embrace global contexts and fosters more inclusive and nuanced perspectives in political behavior research.

This dissertation investigates the correlation between semiotic theory and the way that gendered subjectivity is represented in contemporary South African art. The phenomenon of signification is central to the semiotic theories of the Bulgarian semiotician and psychoanalyst Julia Kristeva. Semiotics can be described as the science of the sign that considers the way in which artists express their personal experience in art making. In this investigation I refer mainly to women's artworks, although the concept of gendered subjectivity in the work of male artists is also discussed. This particular research investigates the symbolic relations of culture in gender terms, that explores the apparent contradictions of subjectivity inherent in capitalist patriarchal society. / Art History, Visual Arts & Music / M.A. (Visual Arts)

This thesis explores ways in which the reality of Kantor’s existence at a key moment in occupied Kraków may be read as directly informing the genesis and development of his artistic strategies. It argues for a particular ontological understanding of human being that resonates strongly with that implied by Kantor in his work and writings. Most approaches to Kantor have either operated from within a native perspective that assumes familiarity with Polish culture and its influences, or, from an Anglo-American theatre-history perspective that has tended to focus on his larger-scale performance work. This has meant that contextual factors informing Kantor’s work as a whole, including his happenings, paintings, and writings, as well as his theatrical works, have remained under-explored. The thesis takes a Heideggerian-hermeneutic approach that foregrounds biographical, cultural and aesthetic contexts specific to Kantor, but seemingly alien to Anglo-American experience. Kantor’s work is approached from Heideggerian and post-Heideggerian perspectives that read the work as a world-forming response to these contexts. Read in this way, key writings, art and performance works by Kantor are revealed to be explorations of existence and human being. Traditional ontological distinctions between process and product, painting and performance, are problematised through the critique of representation that these works and working practices propose. Kantor is revealed as a metaphysical artist whose work stands as a testament to a Heideggerian view of human being as a ‘positive negative’: a ‘placeholder of nothing’, but a ‘nothing’ that yet ‘is’ …

Damasio(1994)提出軀體標記假說（Somatic Marker Hypothesis）來解釋情緒如何影響行為決策，認為人們在決策前，與過去的情緒經驗關聯的生理反應會再現，幫助人們做出較好的決策判斷。並利用愛荷華賭博作業（Iowa Gambling Task）來模擬日常生活決策情境，並同時紀錄膚電反應(Skin conductance respons)，量測受試者決策前的預期膚電反應（Anticipatory SCR）和結果呈現後的回饋膚電反應(Feedback SCR)，加以佐證其神經生理機制。本研究將從三個方向進一步驗證其假說，分別是風險因素、生理證據和個別差異。在愛荷華賭博作業中，期望值負的牌也是高風險程度的牌，使結果無法清楚解釋是期望值或者風險程度造成的影響。而過去雖然有許多研究也使用膚電反應當做生理指標，但有許多相異的研究結果，並且較少研究利用事件關聯電位瞭解其中樞歷程。再者，過去相關研究發現個別差異的存在，但是缺乏一致的解釋。因此，本研究以修改版愛荷華賭博作業，控制期望值皆為零的狀況下，操弄風險程度，並且利用膚電反應和事件關聯電位當作周邊和和中樞的生理反應指標，探討受試者在單純風險情境，是否也會受到情緒軀體標記影響風險行為偏好，以及各項生理指標和風險行為偏好間的關聯，並瞭解不同風險偏好的受試者生理指標是否有所差異。結果發現，從行為上顯示有風險追逐和風險趨避兩組受試者，不同風險程度的牌損失回饋對受試者的歷程影響也不一樣，額葉的腦部回饋相關負波(Feedback-related Negativity，FRN)結果顯示，風險追逐的受試者對高低風險損失時的FRN沒有差異，風險趨避的受試者看到低風險損失時的FRN大於看到高風險損失時的FRN。此外，看到高風險酬賞比起低風險酬有較大回饋膚電反應的受試者，和看到高風險損失比起低風險損失有較小回饋膚電反應的受試者，接受高風險牌的比率也較高，其它生理變項對風險行為偏好沒有顯著的預測力。並且預期膚電反應並非過去研究認為單純扮演警訊或者誘因，而有更複雜的機制存在，受試者在接受非偏好的牌和拒絕偏好的牌前有較大的預期膚電反應。預期階段N170的結果顯示，受試者看到刺激之後會拒絕的N170會大於之後會接受的N170，顯示接受或拒絕兩種不同情境時受試者對刺激的處理歷程亦相異。 / Somatic Marker Hypothesis was proposed to explain the influence of emotion on decision making. To examine this hypothesis, Damasio and his colleagues designed the Iowa Gambling Task (IGT) and found that the “anticipatory skin conductance responses (SCR)”, i.e. somatic markers, was elevated before selecting from bad decks to serve as alarms and it warned participants not to select “bad deck” which was negative expected value. However, there are three unsolved problem in these IGT researches: the risk factor, inconsistent physiological evidences, and individual differences. In the original IGT, the bad decks are also more risky and that confounds the interpretations of participants’ choice behaviors and related physiological evidences. There are inconsistent evidences of how the anticipatory SCR and feedback SCR related with choice behaviors. Moreover, there are little event-related potential IGT studies. To solve these issues, the primary aim of the present study is to clarify whether decision making is influenced by risk level even when all options have the same expected value. A modified IGT with high risk deck and low risk deck was used and the expected values of two decks were all zero. Moreover, the procedure was different from original IGT. Participants saw a deck with mark first and then decided to accept or reject this deck. Thus, the role of anticipatory SCR could be clarified more clearly. In addition to SCR, ERP was also recorded for further physiological evidences. To elaborately clarify individual differences of choice behavior and physiological evidences, participants would group to risk-seeking (i.e., accepting more high risk deck and rejecting more low risk deck) and risk-aversion (i.e., accepting more low risk deck and rejecting more high risk deck) according their choice behaviors. The result revealed that the participant who accepted more high risk deck, their reward SCR was higher from high risk deck than from low risk decks, and induced lower punishment SCR from high risk deck than from low risk decks. Moreover, the anticipatory SCR was higher both before they decided to reject the liked deck and before they decided to accept the disliked deck. The results of feedback-related negativity (FRN) from ERP data in frontal region showed that the magnitude of FRN was larger under the conflict punishment (the punishment from low risk decks) condition for risk-aversion participants. The results of N170 from ERP data showed that the magnitude of N170 was larger under the reject condition. These results suggest that the SMH could be explained not only with expected value but also with risk preference. In conclusion, the interpretation of anticipatory SCR by previous study was not completed, and it reflected not merely the negative feeling or positive feeling. This strong anticipatory emotion affects people to change the routine behavior about their risk preference, and there exist individual differences of choice behavior and physiological evidences.

En los estudios sobre la percepción de los sonidos del habla es fácil encontrar diversos ejemplos que muestran que algunas características de la señal resultan más notorias que otras. En general estas diferencias no han sido incorporadas en los modelos de reconocimiento de palabras. En este trabajo se muestran evidencias de los sesgos en la percepción de vocales en adultos utilizando la técnica de los potenciales evocados. Independientemente de la lengua materna de los participantes, el fonema /i/ resulta mejor discriminado (i.e. respecto a /e/). Además se estudia el papel que la notoriedad de los estímulos juega en la representación y el acceso léxico. El juicio léxico realizado sobre no-palabras se ve acelerado cuando estas contienen como vocal crítica la /i/ (vs. /e/). / In speech perception literature, it is easy to find examples of some characteristics in the signal hich are more salient than others. However, such differences have generally not been incorporated in word recognition models. In this dissertation, evidence of adult vowel perception biases is shown by means of the event-related potentials (ERP) technique. We show that, regardless of the participants' native language, the /i/ phoneme is recognised more easily (relative to the /e/ phoneme). In addition the role that salience plays in lexica representation and access is studied. We find that lexical judgement in non-words is speeded when these contain /i/ as a critical vowel (vs. /e/).

No description available.

現今解釋錯誤偵測系統及前扣帶皮質（ACC）的關係之理論主要為增強學習理論。增強學習理論認為個體會在行為後對於行為結果產生預期，並將該預期與實際結果進行比較，若實際結果較預期結果差則會活化ACC進而觀察到較大的FN（Feedback Negativity）振幅。近年來有學者提出奠基於增強學習理論的錯誤可能性理論，錯誤可能性理論則認為當個體在學習到行為與結果之間的關聯後，當接收到可能犯錯的訊息時便會活化ACC而引起較大的FN。本研究主要的目的為探討增強學習理論及錯誤可能性理論的適用性，其次為探討風險之因素是否能反映於FN上。由於兩理論對於風險情境中是否會觀察到FN有不同的預測，錯誤可能性理論預測會在高風險的情況下觀察到較大的FN；而增強學習理論則預測由於風險畫面並非回饋畫面，故風險不會影響FN。實驗一藉由探討風險與FN間之關係企圖提供兩理論初步之區分並提供風險研究的實驗證據，實驗一結果顯示FN確實會反映風險之因素。也點出增強學習理論用以解釋錯誤偵測系統之不完備之處。而實驗二則利用操弄回饋結果好壞及高低錯誤可能性以檢驗錯誤可能性對於錯誤偵測系統之必要性，實驗二結果顯示錯誤可能性為事件評估之因素之一。除此之外，實驗二亦提供FN反映懊悔之支持性證據。