Adaptation to Displacing Prisms in Human Infants

Perception ◽  
1979 ◽  
Vol 8 (2) ◽  
pp. 175-185 ◽  
Author(s):  
Paul M McDonnell ◽  
Wayne C Abraham

This research reports a first attempt to study adaptation to laterally displacing prisms in human infants of ages six to ten months. Twenty infants were tested over four days under conditions similar to those used in adult adaptation studies. Evidence was found of vigorous adaptation when infants were exposed to base-right prisms under conditions of active exposure. Detailed consideration is given to the conditions and methods of studying adaptation in infants and implications for adult studies.

2020 ◽  
Vol 477 (7) ◽  
pp. 1261-1286 ◽  
Author(s):  
Marie Anne Richard ◽  
Hannah Pallubinsky ◽  
Denis P. Blondin

Brown adipose tissue (BAT) has long been described according to its histological features as a multilocular, lipid-containing tissue, light brown in color, that is also responsive to the cold and found especially in hibernating mammals and human infants. Its presence in both hibernators and human infants, combined with its function as a heat-generating organ, raised many questions about its role in humans. Early characterizations of the tissue in humans focused on its progressive atrophy with age and its apparent importance for cold-exposed workers. However, the use of positron emission tomography (PET) with the glucose tracer [18F]fluorodeoxyglucose ([18F]FDG) made it possible to begin characterizing the possible function of BAT in adult humans, and whether it could play a role in the prevention or treatment of obesity and type 2 diabetes (T2D). This review focuses on the in vivo functional characterization of human BAT, the methodological approaches applied to examine these features and addresses critical gaps that remain in moving the field forward. Specifically, we describe the anatomical and biomolecular features of human BAT, the modalities and applications of non-invasive tools such as PET and magnetic resonance imaging coupled with spectroscopy (MRI/MRS) to study BAT morphology and function in vivo, and finally describe the functional characteristics of human BAT that have only been possible through the development and application of such tools.


2020 ◽  
Vol 36 (2) ◽  
pp. 336-347
Author(s):  
Eleni Georganta ◽  
Felix C. Brodbeck

Abstract. As a response to the lack of quantitative and reliable measures of the team adaptation process, the aim of the present study was to develop and validate an instrument for assessing the four phases of the team adaptation process as described by Rosen and colleagues (2011) . Two trained raters and two subject matter expert groups contributed to the development of four behaviorally anchored rating scales (BARS) that span across the spectrum of team processes involved in each team adaptation phase. To validate the four BARS, two different trained raters assessed independently the team adaptation phases of 66 four-person teams. The validation study provided empirical support for the BARS’ psychometric adequacy. The BARS measures overcame the common middle anchor problem, showed sensitivity in differentiating between teams and between the four phases, showed evidence for acceptable reliability, construct, and criterion validity, and supported the theoretical team adaptation process assumptions. The study contributes to research and praxis by enabling the direct assessment of the overall team adaptation process, thereby facilitating our understanding of this complex phenomenon. This allows the identification of behavioral strengths and weaknesses for targeted team development and comprehensive team adaptation studies.


1965 ◽  
Author(s):  
William Kessen ◽  
Philip Salapatek ◽  
Marshall M. Haith
Keyword(s):  

2015 ◽  
Vol 33 (1) ◽  
pp. 1-15
Author(s):  
Henrietta Bannerman

John Cranko's dramatic and theatrically powerful Antigone (1959) disappeared from the ballet repertory in 1966 and this essay calls for a reappraisal and restaging of the work for 21st century audiences. Created in a post-World War II environment, and in the wake of appearances in London by the Martha Graham Company and Jerome Robbins’ Ballets USA, I point to American influences in Cranko's choreography. However, the discussion of the Greek-themed Antigone involves detailed consideration of the relationship between the ballet and the ancient dramas which inspired it, especially as the programme notes accompanying performances emphasised its Sophoclean source but failed to recognise that Cranko mainly based his ballet on an early play by Jean Racine. As Antigone derives from tragic drama, the essay investigates catharsis, one of the many principles that Aristotle delineated in the Poetics. This well-known effect is produced by Greek tragedies but the critics of the era complained about its lack in Cranko's ballet – views which I challenge. There is also an investigation of the role of Antigone, both in the play and in the ballet, and since Cranko created the role for Svetlana Beriosova, I reflect on memories of Beriosova's interpretation supported by more recent viewings of Edmée Wood's 1959 film.


2007 ◽  
Vol 86 (1) ◽  
pp. 1-15 ◽  
Author(s):  
Wendy B. Stevenson

Although little detailed consideration has been given to the Treaty of Northampton of 1290 by Scottish historians, it seems to have been implicitly accepted as the sort of treaty which might have been expected in connection with the marriage of two independent rulers at that time. This is in spite of the fact that throughout the twelfth, thirteenth and fourteenth centuries the traditional practice of the rulers of the Angevin and Plantagenet dominions was to rule each constituent part according to its own law and customs. This article examines the reasons why the Scots were not prepared to rely on tradition but insisted on a written promise from Edward I that Scotland would remain independent of England. It also suggests that the treaty is more than a written expression of traditional practice. It has a number of specific clauses which, it is argued, give the treaty the character of a charter of liberties. These were intended to prevent the imposition on the Scots of particular aspects of Plantagenet rule in England which burdened its subjects much more severely than the rule of Scottish kings had burdened the Scots. The Scots' wish to remain independent after the proposed union of the crowns and their struggle to maintain that independence after the death of the Maid are generally seen as manifestations of a sense of community or regnal solidarity. The terms of the Treaty of 1290 suggest that it was not just from a desire to be a separate political entity per se that the Scots fought during the so-called Wars of Independence but also because the Scots were anxious to avoid the more oppressive aspects of Plantagenet rule even before they had experience of this after Edward I's conquest of 1296.


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