Cortical and Subcortical Processing of Linguistic Pitch Patterns

Author(s):  
Joseph C. Y. Lau ◽  
Zilong Xie ◽  
Bharath Chandrasekaran ◽  
Patrick C. M. Wong

Pitch is one of the major prosodic cues in speech. A central research question is the way the brain derives the percept of pitch from incoming acoustic information. After introducing the functional architecture of the human auditory system, this chapter reviews lesion and neuroimaging studies and human electrophysiological studies of the processing of linguistically relevant pitch patterns at the cortical and subcortical levels, respectively. Recent evidence demonstrates the malleability of pitch processing in response to long-term and short-term auditory experiences as well as to the immediate history of the sensory inputs. In addition, the role of pitch in syntax-level processing will be evaluated. The chapter concludes with a discussion of how these findings, along with recent technical advances, will allow future studies to explore the neurocognitive bases of phonological theories of pitch representation and, conversely, of how prosodic theories may inform the intricate nature of neural pitch processing.

2015 ◽  
Vol 93 (8) ◽  
pp. 641-648 ◽  
Author(s):  
Azza Ramadan ◽  
Mark D. Wheatcroft ◽  
Adrian Quan ◽  
Krishna K. Singh ◽  
Fina Lovren ◽  
...  

Autophagy regulates cellular homeostasis and integrates the cellular pro-survival machinery. We investigated the role of autophagy in the natural history of murine abdominal aortic aneurysms (AAA). ApoE−/− mice were implanted with saline- or angiotensin II (Ang-II)-filled miniosmotic pumps then treated with either the autophagy inhibitor chloroquine (CQ; 50 mg·(kg body mass)–1·day–1, by intraperitoneal injection) or saline. Ang-II-elicited aneurysmal expansion of the suprarenal aorta coupled with thrombus formation were apparent 8 weeks later. CQ had no impact on the incidence (50% for Ang-II compared with 46.2% for Ang-II + CQ; P = NS) and categorical distribution of aneurysms. The markedly reduced survival rate observed with Ang-II (57.1% for Ang-II compared with 100% for saline; P < 0.05) was unaffected by CQ (61.5% for Ang-II + CQ; P = NS compared with Ang-II). CQ did not affect the mean maximum suprarenal aortic diameter (1.91 ± 0.19 mm for Ang-II compared with 1.97 ± 0.21 mm for Ang-II + CQ; P = NS). Elastin fragmentation, collagen accumulation, and smooth muscle attrition, which were higher in Ang-II-treated mice, were unaffected by CQ treatment. Long-term CQ administration does not affect the natural history and prognosis of experimental AAA, suggesting that global loss of autophagy is unlikely to be a causal factor in the development of aortic aneurysms. Manipulation of autophagy as a mechanism to reduce AAA may need re-evaluation.


Author(s):  
Paweł Bukowski ◽  
Filip Novokmet

AbstractWe construct the first consistent series on the long-term distribution of income in Poland by combining tax, household survey and national accounts data. We document a U-shaped evolution of inequalities from the end of the nineteenth century until today: (1) inequality was high before WWII; (2) abruptly fell after the introduction of communism in 1947 and stagnated at low levels during the whole communist period; (3) experienced a sharp rise with the return to capitalism in 1989. We find that official survey-based measures strongly under-estimate the rise in inequality since 1989. Our results highlight the prominent role of capital income in driving the U-shaped evolution of top income shares. The unique inequality history of Poland speaks to the central role of institutions and policies in shaping inequality in the long run.


2020 ◽  
Vol 122 (2) ◽  
pp. 1-32
Author(s):  
Matthew Gardner Kelly

Background/Context Dealing mostly in aggregate statistics that mask important regional variations, scholars often assume that district property taxation and the resource disparities this approach to school funding creates are deeply rooted in the history of American education. Purpose/Objective/Research Question/Focus of Study This article explores the history of district property taxation and school funding disparities in California during the 19th and 20th centuries. First, the article documents the limited use of district property taxation for school funding in California and several other Western states during the 19th century, showing that the development of school finance was more complicated than standard accounts suggest. Then, the article examines how a coalition of experts, activists, and politicians worked together during the early 20th century to promote district property taxation and institutionalize the idea that the wealth of local communities, rather than the wealth of the entire state, should determine the resources available for public schooling. Research Design This article draws on primary source documents from state and regional archives, including district-level funding data from nine Northern California counties, to complete a historical analysis. Conclusions/Recommendations The history of California's district property tax suggests the need for continued research on long-term trends in school finance and educational inequality. Popular accounts minimizing the historical role of state governments in school funding obscure how public policies, not just market forces shaping property values, create funding inequalities. In turn, these accounts communicate powerful messages about the supposed inevitability of funding disparities and the responsibility of state governments to correct them. Through increased attention to long-term trends in school funding, scholars can help popular commentators and policymakers avoid assumptions that naturalize inequality and narrow the possibilities for future funding reforms.


Author(s):  
Christophe Sand

New Caledonia is the southern-most archipelago of Melanesia. Its unique geological diversity, as part of the old Gondwana plate, has led to specific pedological and floral environments that have, since first human settlement, influenced the ways Pacific Islanders have occupied and used the landscape. This essay presents some of the key periods of the nearly 3,000 years of pre-colonial human settlement. After having presented a short history of archaeological research in New Caledonia, the essay focuses first on the Lapita foundation, which raises questions of long-term contacts and cultural change. The second part details the unique specificities developed during the “Traditional Kanak Cultural Complex,” during the millennium predating first European contact, as well as highlighting the massive changes brought by the introduction of new diseases, in the decades before the colonial settlement era. This leads to questions about archaeological history and the role of archaeology in the present decolonizing context.


2020 ◽  
Vol 17 (2) ◽  
pp. 54
Author(s):  
Anindita L. ◽  
Aris Aji K. ◽  
Arcadia Sulistijo J.

Hypertension presents an increase in blood pressure following the oral manifestations, such as gingival enlargement. A 42-year-old woman came to the General Sudirman University Dental and Oral Hospital complaining of enlarged front gums seven years ago. The patient had a history of hypertension and regularly consumed drugs, amlodipine 5 mg. Extraoral examination revealed no lymphadenopathy and no swelling of the head and neck area. Intraoral examination revealed a gingival enlargement involving the papilla to the gingival margin present on the entire upper and lower labial gingival surface. The patient's diagnosis was gingival enlargement caused by gingival enlargement due to the use of amlodipine. Gingival enlargement has been noted with long-term or high-dose amlodipine use. The mechanism of amlodipine in causing gingival enlargement is through the role of fibroblasts with abnormal susceptibility to the drug, resulting in increased levels of protein synthesis, especially collagen. The role of pro-inflammatory cytokines occurs through an increase in interleukin-1β (IL-1β) and IL-6 in the inflamed gingival tissue due to the gingival fibrogenic response to drugs. Therapies were DHE and scaling and root planning as phase I in periodontal treatment. Plaque elimination is vital to reduce gingival inflammation that may occur. Substitution of the drug amlodipine may be needed if there is no improvement. Based on case reports, hypertension patients who took amlodipine could have gingival enlargement. The therapy given was plaque elimination in the form of DHE and Scaling and regular check-ups with the dentist.


2021 ◽  
Vol 12 ◽  
Author(s):  
Carla Cugini ◽  
Narayanan Ramasubbu ◽  
Vincent K. Tsiagbe ◽  
Daniel H. Fine

The significance of microbiology and immunology with regard to caries and periodontal disease gained substantial clinical or research consideration in the mid 1960's. This enhanced emphasis related to several simple but elegant experiments illustrating the relevance of bacteria to oral infections. Since that point, the understanding of oral diseases has become increasingly sophisticated and many of the original hypotheses related to disease causality have either been abandoned or amplified. The COVID pandemic has reminded us of the importance of history relative to infectious diseases and in the words of Churchill “those who fail to learn from history are condemned to repeat it.” This review is designed to present an overview of broad general directions of research over the last 60 years in oral microbiology and immunology, reviewing significant contributions, indicating emerging foci of interest, and proposing future directions based on technical advances and new understandings. Our goal is to review this rich history (standard microbiology and immunology) and point to potential directions in the future (omics) that can lead to a better understanding of disease. Over the years, research scientists have moved from a position of downplaying the role of bacteria in oral disease to one implicating bacteria as true pathogens that cause disease. More recently it has been proposed that bacteria form the ecological first line of defense against “foreign” invaders and also serve to train the immune system as an acquired host defensive stimulus. While early immunological research was focused on immunological exposure as a modulator of disease, the “hygiene hypothesis,” and now the “old friends hypothesis” suggest that the immune response could be trained by bacteria for long-term health. Advanced “omics” technologies are currently being used to address changes that occur in the host and the microbiome in oral disease. The “omics” methodologies have shaped the detection of quantifiable biomarkers to define human physiology and pathologies. In summary, this review will emphasize the role that commensals and pathobionts play in their interaction with the immune status of the host, with a prediction that current “omic” technologies will allow researchers to better understand disease in the future.


Author(s):  
Elena A. Schneider

The introduction sketches the contours of the British six-week invasion and eleven-month occupation of Havana in 1762–1763, a major event in the history of the Atlantic world. It describes the framework of the book, “an event history” that relies on multiple, overlapping temporal and spatial frames in order to tie together many different strands of history, historical actors, perspectives, and scales. In giving a long-term history of the causes, central dynamics, and enduring consequences of this event, the book focuses on the crucial role of the slave trade and people of African descent. The actions of people of African descent and imperial rivalry over the slave trade shaped both the invasion and occupation of Havana in ways yet to be fully understood. The rest of the book explores the painful irony that black soldiers’ brave service in Havana during the British siege helped lead to new Spanish policies that endorsed and expanded slavery and the slave trade.


Author(s):  
Philip Manow

The first chapter motivates the book’s central research question: how did the German variant of capitalism emerge, and what today is its central functioning logic? The chapter argues that past and recent accounts of Germany’s economic performance and economic policy have failed to fully explain how long-term stable economic coordination could have evolved in as large a country as Germany, and that this has also translated into an often biased view of Germany’s current economic policies. The chapter sketches the basic argument of the book—namely that the German welfare state was the prime means of economic coordination for unions and employers, labor and capital—and situates it in two relevant literatures: the Varieties of Capitalism literature on the one hand and the Comparative Welfare State literature on the other. The chapter also presents an overview of the book.


1976 ◽  
Vol 70 (8) ◽  
pp. 329-331
Author(s):  
William H. Jacobson

The role of the para-professional in the modern orientation and mobility program is discussed. A brief history of the mobility profession is recounted to give a proper perspective in which to view present and future trends. The para-professional is then compared with his professional counterpart, the certified orientation and mobility specialist. The attitudes, duties, and goals of the mobility specialist and his profession are explored in relationship to those of the para-professional. The author concludes that the profession is too young and the historical trend too contradictory to permit acceptance of para-professionals in the mobility program at this time.


2020 ◽  
pp. 1-13 ◽  
Author(s):  
Kornelia Kończal

In early 2018, the Polish parliament adopted controversial legislation criminalising assertions regarding the complicity of the ‘Polish Nation’ and the ‘Polish State’ in the Holocaust. The so-called Polish Holocaust Law provoked not only a heated debate in Poland, but also serious international tensions. As a result, it was amended only five months after its adoption. The reason why it is worth taking a closer look at the socio-cultural foundations and political functions of the short-lived legislation is twofold. Empirically, the short history of the Law reveals a great deal about the long-term role of Jews in the Polish collective memory as an unmatched Significant Other. Conceptually, the short life of the Law, along with its afterlife, helps capture poll-driven, manifestly moralistic and anti-pluralist imaginings of the past, which I refer to as ‘mnemonic populism’. By exploring the relationship between popular and political images of the past in contemporary Poland, this article argues for joining memory and populism studies in order to better understand what can happen to history in illiberal surroundings.


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