Background: The regulation of muscle force is a vital aspect of sensorimotor control, requiring intricate neural processes. While neural activity associated with upper extremity force control has been documented, extrapolation to lower extremity force control is limited. Knowledge of how the brain regulates force control for knee extension and flexion may provide insights as to how pathology or intervention impacts central control of movement.Objectives: To develop and implement a neuroimaging-compatible force control paradigm for knee extension and flexion.Methods: A magnetic resonance (...) imaging safe load cell was used in a customized apparatus to quantify force during neuroimaging. Visual biofeedback and a target sinusoidal wave that fluctuated between 0 and 5 N was provided via an MRI-safe virtual reality display. Fifteen right leg dominant female participants completed a knee extension and flexion force matching paradigm during neuroimaging. The force-matching error was calculated based on the difference between the visual target and actual performance. Brain activation patterns were calculated and associated with force-matching error and the difference between quadriceps and hamstring force-matching tasks were evaluated with a mixed-effects model.Results: Knee extension and flexion force-matching tasks increased BOLD signal among cerebellar, sensorimotor, and visual-processing regions. Increased knee extension force-matching error was associated with greater right frontal cortex and left parietal cortex activity and reduced left lingual gyrus activity. Increased knee flexion force-matching error was associated with reduced left frontal and right parietal region activity. Knee flexion force control increased bilateral premotor, secondary somatosensory, and right anterior temporal activity relative to knee extension. The force-matching error was not statistically different between tasks.Conclusion: Lower extremity force control results in unique activation strategies depending on if engaging knee extension or flexion, with knee flexion requiring increased neural activity for the same level of force and no difference in relative error. These fMRI compatible force control paradigms allow precise behavioral quantification of motor performance concurrent with brain activity for lower extremity sensorimotor function and may serve as a method for future research to investigate how pathologies affect lower extremity neuromuscular function. (shrink)

Foreword by Robert H. Bork -- Culture wars -- A distorted understanding of rights -- The right to privacy -- Griswold and contraception -- Roe and abortion -- Assisted suicide and homosexuality -- Political connections and natural consequences.

Fundamentals -- Beginning-of-life issues -- Reproductive technologies -- Contraception, sterilization, and natural family planning -- End-of-life issues -- Cooperation with evil -- Respect for the body -- The ten commandments for health care professionals and patients.

Journalists play an important role in the realization and protection of human rights worldwide, framing and shaping the public’s understanding of issues. In the United States, however, studies show that media coverage of human rights is inadequate and frequently inaccurate, with US journalists typically framing human rights as an exclusively international issue. This study helps to explain why this is the case through an examination of the human rights content of journalism education in the United States. Journalism education is dominated (...) by undergraduate programs in the United States, yet data from this study show that human rights education is not part of journalism training programs at the undergraduate level and is not a focus of most graduate-level training programs. Those schools that do teach human rights do so largely with a focus on events and violations abroad. The fact that journalists are not educated about international human rights law and standards or taught to view events through a human rights lens means that crucial opportunities are missed to frame topics as human rights issues, to inform the public, and to hold governments and other human rights violators accountable. (shrink)

The United Nations Convention on the Rights of Persons with Disabilities, adopted on December 13, 2006, and entered into force on May 3, 2008, constitutes a key landmark in the emerging field of global health law and a critical milestone in the development of international law on the rights of persons with disabilities. At the time of its adoption, the U.N. High Commissioner for Human Rights heralded the CRPD as a rejection of the understanding of persons with disabilities “as objects (...) of charity, medical treatment and social protection” and an embrace of disabled people as “subjects of rights.”The text of the Convention itself, and the highly participatory process by which it was negotiated, signal a definitive break from previous international approaches that focused on disability within a medical model framework. In contrast to traditional approaches, the CRPD embraces a social model of disability, concentrating the disability experience not in individual deficiency, but in the socially constructed environment and the barriers that impede the participation of persons with disabilities in society. (shrink)

Janet E. Smith; I Knit You in Your Mother's Womb, Christian bioethics: Non-Ecumenical Studies in Medical Morality, Volume 8, Issue 2, 1 January 2002, Pages 125–.

This article reviews the contributions of the UN Convention on the Rights of Persons with Disabilities to the progressive development of both international human rights law and global health law and governance. It provides a summary of the global situation of persons with disabilities and outlines the progressive development of international disability standards, noting the salience of the shift from a medical model of disability to a rights-based social model reflected in the CRPD. Thereafter, the article considers the Convention's structure (...) and substantive content, and then analyzes in specific detail the particular contributions of the Convention to health and human rights law and global health governance. It concludes with an exploration of the potential implications of the CRPD's innovations for some of the most pressing issues in global health governance, including the Convention's contributions to the principle of participation in decision-making. (shrink)

The objective of the study was to explore parental experiences of being offered participation in a previous neonatal research study involving venepuncture. The method employed was a questionnaire-based exploration of parents' attitudes in those approached to participate in a study of term and preterm immunization responses (Preterm Immunisation Study [PREMIS]). We explored experience of the initial approach, knowledge of study, venepuncture and views on research ‘in general’. In all, 59% of families responded. Highest response rates were for those participating in (...) PREMIS (87% term/69% preterm) and lowest in decliners (34% and 35%). Responding parents participating in PREMIS were well informed, positive about research and did not find the venepuncture problematic. Sixty percent of responding parents who declined PREMIS attributed their declining to the need for venepuncture. In conclusion, parents participating or declining a neonatal study involving venepuncture are different, but participating parents were well informed and seemed able to judge that participation was right for them such that in consenting families venepuncture itself is not problematic. (shrink)

This response challenges Jensen's analysis in no substantial way. Rather, it explains more fully some of the moral character categories that Aristotle provides. It argues that Aristotle understood there to be two forms of continence: the continence that enables us to control natural appetites and “some form” of continence directed towards unnatural appetites, generally engendered by some pathology or abuse.

Cowdin and Tuohey argue for a rethinking of Catholic bioethical principles and the Church's moral authority. Citing the Second Vatican council for support, they argue that if the Church were to respect the proper autonomy of medicine, it would allow sterilizations. In this essay I argue against Cowdin and Tuohey's understanding that the Church has derived its moral laws independent of consultation with medicine and that it treats medicine simply as a source of technical expertise. I also argue that they (...) misunderstand the nature of autonomy as well as the Church's position regarding the type of autonomy they request for medicine. I will especially argue against their understanding of the principles of totality and double effect as “dispensations” from the moral order. I conclude that they have provided no grounds to cause the Church to reconsider its condemnation of all sterilizations. (shrink)

My assessment of Jean Porter's Natural and Divine Law is mixed. She provides a generally accurate account of the scholastic theory of natural law, since she steers clear of the erroneous notion that its understanding of "nature" was confined to the physical or biological and rightly notes that "nature" refers to the fullness of human nature. Her account of modern natural law theory is less reliable; for she ignores the work of several prominent contemporary natural law theorists and regrettably caricatures (...) the natural law theory employed in Church documents. I found most illuminating her claims that biblical themes influenced which issues became the focus of scholastic natural law. Her entire project, however, is flawed in serious ways: 1) surprisingly, in light of her previous work, she neglects nearly entirely the role of virtue in natural law theory; and 2) the trajectory of her work is designed to lead the Church to change its teaching on sexuality, even to the point of claiming that scholastic natural law theory has principles that justify homosexual celebrating of the erotic in the gay lifestyle. (shrink)

It is possible to defend the Church’s teaching that contraception is incompatible with God’s plan for sexuality in many different ways. This essay sketches the fundamental views of reality common to all the defenses and the main lines of the most prominent defenses, some based on natural law, on the theology of the body, and on the physical, psychological, and social consequences of the use of contraception. While all the defenses have merit, the argument based on the recognition that sexual (...) intercourse is meant to be a complete self-gift has a special power of its own. (shrink)

Janet E. Buerger uses this remarkable collection of images to produce a cultural history of the daguerreotype's most learned following—an elite group of mid-nineteenth-century intellectuals who sought to understand and develop the ...

Starting from Marr's ideas about levels of explanation, a theory of the data structures and access processes in human memory is demonstrated on 10 tasks. Functional characteristics of human memory are captured implementation-independently. Our theory generates a multidimensional task classification subsuming existing classifications such as the distinction between tasks that are implicit versus explicit, data driven versus conceptually driven, and simple associative (two-way bindings) versus higher order (threeway bindings), providing a broad basis for new experiments. The formal language clarifies the (...) binding problem in episodic memory, the role of input pathways in both episodic and semantic (lexical) memory, the importance of the input set in episodic memory, and the ubiquitous calculation of an intersection in theories of episodic and lexical access. (shrink)

The literatures on both authentic leadership and behavioral integrity have argued that leader integrity drives follower performance. Yet, despite overlap in conceptualization and mechanisms, no research has investigated how authentic leadership and behavioral integrity relate to one another in driving follower performance. In this study, we propose and test the notion that authentic leadership behavior is an antecedent to perceptions of leader behavioral integrity, which in turn affects follower affective organizational commitment and follower work role performance. Analysis of a survey (...) of 49 teams in the service industry supports the proposition that authentic leadership is related to follower affective organizational commitment, fully mediated through leader behavioral integrity. Next, we found that authentic leadership and leader behavioral integrity are related to follower work role performance, fully mediated through follower affective organizational commitment. These relationships hold when controlling for ethical organizational culture. (shrink)