96,342 research outputs found
Neo-Thomism and the Problem of Animal Suffering
Proponents of the problem of animal suffering claim that the millions of years of apparent nonhuman animal pain and suffering provides evidence against the existence of God. Neo-Cartesianism attempts to avoid this problem mainly by denying the existence of phenomenal consciousness in nonhuman animals. However, neo-Cartesian options regarding animal minds have failed to compel many. In this essay, I explore an answer to the problem of animal suffering inspired by the medieval theologian Thomas Aquinas. Instead of focusing on phenomenal consciousness, the neo-Thomistic view of animal minds focuses on self-awareness. After proposing and providing evidence for this view, I conclude that nonhuman animal suffering is not morally significant
The psychology of gestures and gesture-like movements in non-human primates
Research into gestural communication of nonhuman primates is often inspired by an interest in the evolutionary roots of human language. The focus on intentionally used behaviors is central to this approach that aims at investigating the cognitive mechanisms characterizing gesture use in monkeys and apes. This chapter describes some of the key characteristics that are important in this context, and discusses the evidence the claim is built on that gestures of, nonhuman primates represent intentionally and flexibly used means of communication. This chapter will first provide a brief introduction into what primates are and how a gesture is defined, before the psychological approach to gestural communication is described in more detail, with focus on the cognitive mechanisms underlying gesture use in nonhuman primates
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Nonhuman Primate Models of Respiratory Disease: Past, Present, and Future.
The respiratory system consists of an integrated network of organs and structures that primarily function for gas exchange. In mammals, oxygen and carbon dioxide are transmitted through a complex respiratory tract, consisting of the nasal passages, pharynx, larynx, and lung. Exposure to ambient air throughout the lifespan imposes vulnerability of the respiratory system to environmental challenges that can contribute toward development of disease. The importance of the respiratory system to human health is supported by statistics from the Centers for Disease Control and Prevention; in 2015, chronic lower respiratory diseases were the third leading cause of death in the United States. In light of the significant mortality associated with respiratory conditions that afflict all ages of the human population, this review will focus on basic and preclinical research conducted in nonhuman primate models of respiratory disease. In comparison with other laboratory animals, the nonhuman primate lung most closely resembles the human lung in structure, physiology, and mucosal immune mechanisms. Studies defining the influence of inhaled microbes, pollutants, or allergens on the nonhuman primate lung have provided insight on disease pathogenesis, with the potential for elucidation of molecular targets leading to new treatment modalities. Vaccine trials in nonhuman primates have been crucial for confirmation of safety and protective efficacy against infectious diseases of the lung in a laboratory animal model that recapitulates pathology observed in humans. In looking to the future, nonhuman primate models of respiratory diseases will continue to be instrumental for translating biomedical research for improvement of human health
Reflections on Animals, Property, and the Law and Rain Without Thunder
Animal interests will almost always be regarded as less important than human interests, even when the human interest at stake is relatively trivial and the animal interest at stake is significant. The result of any supposed balancing of human and nonhuman interests required by animal-welfare laws is predetermined from the outset by the property status of the nonhuman as a food animal, experimental animal, game animal, et cetera
Nonhuman primates as models of hemispheric specialization
The present chapter concerns the issue of hemispheric specialization
for perceptual and cognitive processes. In spite of a long-lasting view that only humans are lateralized (e.g., Warren, 1980), there is now strong documentation for anatomical lateralizations, functional lateralizations, or both in several animal taxa, including birds, rodents, and nonhuman primates (see Bradshaw & Rogers, 1993; Hellige, 1993). We selectively report demonstrations from studies of nonhuman primates. After a short review of the evidence for structural (anatomical) lateralization, we describe..
Animal Consciousness
This chapter addresses the extent to which nonhuman animals are conscious. Most important perhaps is what criteria should be used in making such a determination
Foxes, hounds, and horses : Who or which?
Writers of English can choose whether to mark a high level of sentience in a nonhuman animal by selecting the word who rather than which. An examination of texts relating to foxhunting on the world wide web showed that, in reference to the nonhuman animals involved in foxhunting, writers were most likely to use who in reference to foxes, and least likely to use it in reference to horses. Those who support foxhunting are more likely to recognize the sentience of the fox than those who oppose foxhunting. This may be because those who enjoy foxhunting present the fox as an active creator of the hunt, and as a worthy opponen
In Vivo Multimodal Imaging of Drusenoid Lesions in Rhesus Macaques.
Nonhuman primates are the only mammals to possess a true macula similar to humans, and spontaneously develop drusenoid lesions which are hallmarks of age-related macular degeneration (AMD). Prior studies demonstrated similarities between human and nonhuman primate drusen based on clinical appearance and histopathology. Here, we employed fundus photography, spectral domain optical coherence tomography (SD-OCT), fundus autofluorescence (FAF), and infrared reflectance (IR) to characterize drusenoid lesions in aged rhesus macaques. Of 65 animals evaluated, we identified lesions in 20 animals (30.7%). Using the Age-Related Eye Disease Study 2 (AREDS2) grading system and multimodal imaging, we identified two distinct drusen phenotypes - 1) soft drusen that are larger and appear as hyperreflective deposits between the retinal pigment epithelium (RPE) and Bruchs membrane on SD-OCT, and 2) hard, punctate lesions that are smaller and undetectable on SD-OCT. Both exhibit variable FAF intensities and are poorly visualized on IR. Eyes with drusen exhibited a slightly thicker RPE compared with control eyes (+3.4 μm, P=0.012). Genetic polymorphisms associated with drusenoid lesions in rhesus monkeys in ARMS2 and HTRA1 were similar in frequency between the two phenotypes. These results refine our understanding of drusen development, and provide insight into the absence of advanced AMD in nonhuman primates
Paul Taylors Biocentric Ethics: A Survey of Contemporary Environmental Conflicts
This work is on Paul Taylors Biocentric Ethics: A Survey of Contemporary Environmental Conflicts. When we accept the concept of biocentrism there is bound to exist conflicts between interests and cultural values of humans and the well-being of nonhuman living beings. These conflicts as we shall see need fair resolution principles because they are equal competing claims. Thus, the concept of equality here deals with the fact already established. This work exposes that both humans and nonhuman living beings of the wild have inherent worth of their own, which deserve respect and consideration. In other words, they both have right‘ to pursue and attain their own ends without hindrance of any sort
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