Telomeres are short repetitive DNA sequences capping the ends of chromosomes. Telomere shortening occurs during cell division and may be accelerated by oxidative damage or ameliorated by telomere maintenance mechanisms. Consequently, telomere length changes with age, which was recently confirmed in a large meta‐analysis across vertebrates. However, based on the correlation between telomere length and age, it was concluded that telomere length can be used as a tool for chronological age estimation in animals. Correlation should not be confused with (...) predictability, and the current data and studies suggest that telomeres cannot be used to reliably predict individual chronological age. There are biological reasons for why there is large individual variation in telomere dynamics, which is mainly due to high susceptibility to a wide range of environmental, but also genetic factors, rendering telomeres unfeasible as a tool for age estimation. The use of telomeres for chronological age estimation is largely a misguided effort, but its occasional reappearance in the literature raises concerns that it will mislead resources in wildlife conservation. (shrink)

This paper briefly reviews the papers in this special section of HCA and makes the point—a point which should be obvious—that statistics are useful only as guidelines but tell one nothing about the individual patient in front of you. Chronological age merely shows what is true of most but decidedly not of all patients in a particular age group. To ration on the basis of age alone is unfair to the individual denied treatment and damaging to the community because (...) it disturbs the solidarity which comes about because most members of the community feel that the community has obligations beyond those of not directly harming them; indeed, what produces solidarity is the feeling that members of a community will do their best to come to each others help. Rationing on the basis of age alone denies people of equal treatment under the law and—when it comes to the elderly—is a type of age discrimination. It is pointed out that what matters is a patient’s disease and not his/her age. A permanently vegetative person 8 years of age is a much sadder occurrence than it would be at age 90—but the critical fact is that both are permanently vegetative. Age cuts both ways—it is irrational to spend hundreds of thousands of dollars, untold amounts of time, energy and devotion to the 520 gm infant with a gr IV diffuse haemorrhage whose chance of leading a sentient life is close to zero and to hesitate before using a diagnostic MRI on a patient who is 90 but fully alert and enjoying life. It is concluded that age as an independent variable in the allocation of resources is ethically highly problematic. (shrink)

In his fascinating doctoral thesis, W.J. Hanegraaff has drawn a clear map to the labyrinth called 'New Age', which he defines as 'the cultic milieu having become conscious of itself as constituting a more or less unified movement'. It is an 'etic' description of 'emic' points of view held by a wide variety of representatives of this movement. The book is divided in three parts: 1. A general orientation; 2. The varieties of New Age experience; 3. An interpretation of the (...) material presented in parts 1 and 2. The author argues that although New Age is composed of many heterogenous elements, nevertheless a measure of coherence can be demonstrated even on the level of beliefs. He holds that as New Age is based on popular culture criticism, thus western esotericism, in which the movement is rooted, it is a third, 'gnostic' option in western culture next to philosophical and scientific rationalism and institutional Christianity. The reviewer, though enthusiastic about the book, questions it on its criteria for distinguishing New Age and Christianity and on the question of possible esoteric influences on apparently Christian movements. The distinction between faith and gnosis could perhaps be profitably related to God's transcendence and his immanence. The platonism of the early Church, adapted for Christian use, ought to be compared with the many platonic elements of present day New Age. (shrink)

J. M. C. Toynbee's study ‘Nero Artifex: the Apocolocyntosis Reconsidered’, C.Q. xxxvi, 1942, 83–93, has the double merit of questioning what had never been questioned—the dating of the Apocolocyntosis about A.D. 54–5—and of making many valuable observations on the importance of the Neronia of A.D. 60. But the attempt to transfer to these Neronia the Apocolocyntosis, the Carmina by Calpurnius, the second of the Carmina Einsiedlensia, and, to a certain extent also, Lucan's De Bello Civili, seems to me, if I (...) may anticipate my conclusions, entirely misleading. (shrink)

Dr Brandwood's book presents a factual and critical account of the more important of the various attempts that have been made to establish the order of composition of Plato's dialogues by analysing his diction and prose style. Plato's literary activity covered fifty years and there is almost no direct evidence, either external or internal, to help in establishing the relative order of his writings. Until the middle of the nineteenth century people were dependent on personal interpretation of the probable line (...) of development of Plato's thought and doctrines, but then a less subjective method was discovered, which relied instead on the observation of changes in Plato's prose style. Dr Brandwood examines the investigations of each scholar individually, checking the correctness of the methodology and the accuracy of the statistics, before arriving at fairly definite conclusions of his own, at least as far as the works of Plato's middle and old age are concerned. (shrink)

A patient’s age serves as a very useful guide to physicians in deciding what disease manifestations to anticipate, what treatment to offer for certain conditions, and how to prepare for possible emergencies. In the context of the COVID-19 pandemic, determining treatment options on the basis of a patient’s chronological age can easily give rise to unjustified discrimination. This is of particular significance in situations where the allocation of scarce critical care resources could have a direct impact on who will (...) live and who will die. This paper examines the fairness of recommendations contained in resource allocation guidelines in the Philippines that have implications for the way elderly patients could be treated or excluded from some forms of critical care treatment in the context of the ongoing Corona virus emergency. (shrink)

This chapter focuses on one of the common fallacies in Western philosophy: chronological snobbery (CS). First described by the Christian academic Owen Barfield in the 1920s and later popularized by his friend and colleague C.S. Lewis, the fallacy of CS presupposes that cultural, philosophical, or scientific ideas from later time periods are necessarily superior to those from earlier ages. Grounded on the Enlightenment's concept of “progress”, this informal fallacy stems from the assumption that the ever‐increasing amount of knowledge in (...) society naturally and perpetually replaces all outdated, disproven ideas with updated, better‐justified beliefs, therefore making old ideas incorrect or irrelevant simply because they are old. Essentially the opposite of the appeal to ancient authority, CS relates to guilt by association, hasty generalization, and poisoning the well fallacies whenever it references unrelated false beliefs held by individuals from the originating time period. (shrink)

Lippert-Rasmussen and Petersen discuss my ‘Moral case for legal age change’ in their article ‘Age change, official age and fairness in health’. They argue that in important healthcare settings (such as distributing vital organs for dying patients), the state should treat people on the basis of their chronological age because chronological age is a better proxy for what matters from the point of view of justice than adjusted official age. While adjusted legal age should not be used in (...) deciding who gets scarce vital organs, I remind the readers that using chronological age as a proxy is problematic as well. Using age as a proxy could give wrong results and it is better, if possible, for states to use the vital information directly than use age as a proxy. (shrink)

Purpose. The purpose of this paper is to investigate the anthropological and socio-philosophical dimensions of human existence of the older age group given the challenges of pandemic threats caused by COVID-19. To this end, it is planned to solve a number of tasks, among which one should distinguish the following: 1) to investigate the manifestations of age discrimination in the context of the social and labor areas of human existence; 2) to focus on the asymmetry of the behavior of society (...) and the state relative to persons of the older age group in the field of healthcare in the context of a pandemic crisis; 3) to represent the anthropological features of changes in the socialization and activity of older people under the current conditions of globalization-pandemic challenges. Theoretical basis. Despite such a broad representation of the age-related issue in public relations, there are still no practical guarantees that would apply to discriminatory aspects of older age groups in various areas of their manifestation. The synergistic evolution of social reality requires substantive analysis of the issue under the current conditions for the transformation of social life, which is affected by globalization crises caused by the pandemic threats of COVID-19. Originality. The stereotypical assumptions underlying legal policy and established social relations are based solely on the application of chronological age. The novelty is in justifying an individual approach to the elderly through the personification of the personal characteristics of a person. The study of anthropological and socio-philosophical dimensions of the existence of a person of the older age group in the face of the challenges of pandemic threats caused by COVID-19 has made it possible to analyze the destructive nature of age discrimination in the context of the social and labor areas of human existence. As well as focus on the asymmetry of the behavior of society and the state in relation to these persons in the field of health care, and emphasize the anthropological features of changes in the socialization and human activity under the current conditions of globalization-pandemic challenges. Conclusions. External threats to human existence call for special attention to the implementation and protection of human rights, freedoms, individual freedoms, and identity. Pandemic threats have transformed all dimensions of human existence, especially for those groups of society that are less socially protected. The pandemic crisis has created additional grounds for discrimination against older people in various areas of human existence. Equalization of persons by age without personifying the personal characteristics of an individual is discrimination on an age basis, which violates the principles of democracy and humanism in the society, leads to stigmatization of the person, is the cause of the anthropological crisis of a person. (shrink)

The chronologic age classically used in demography is often unable to give useful information about which exact stage in development or aging processes has reached an organism. Hence, we propose here to explain in some applications for what reason the chronologic age fails in explaining totally the observed state of an organism, which leads to propose a new notion, the biological age. This biological age is essentially determined by the number of divisions before the Hayflick’s limit the tissue or mitochondrion (...) in a critical organ (in the sense where its loss causes the death of the whole organism) has already used for its development and adult phases. We give a precise definition of the biological age of an organ based on the Hayflick’s limit of its cells and we introduce a desynchronization index (the cell entropy) for some critical tissues or membranes, which are mainly skin, intestinal endothelium, alveoli epithelium and mitochondrial inner membrane. In these actively metabolising interface tissues or membranes, there is a rapid turnover of cells, of their cytoplasmic constituents such as proteins, and of membrane lipids. The boundaries corresponding to these tissues, cells or membranes have vital functions of interface with the environment (protection, homeothermy, nutrition and respiration) and have a rapid turnover (the total cell renewal time is in mice equal to 3 weeks for the skin, 1.5 day for the intestine, 4 months for the alveolae and 11 days for mitochondrial inner membrane) conditioning their biological age. The biological age of a tissue is made of two major components: (1) first, its embryonic age based on the distance (in number of divisions) between the birth date of its first differentiated cell and the time until it reaches its final boundary at the end of its development and (2) second, its adult age whose complement until its death is just the lapse of time made of the sum of remaining cell cycle durations authorized by its Hayflick’s limit. From this definition, we calculate the global biological lifespan of an organism and revisit notions like demographic survival curves, duration and synchrony of cell cycles, living boundaries from proto-cells to organs, and embryonic and adult phases duration. (shrink)

Recent research has shown that the use of astronomy as a chronological problem-solving tool has deep roots in the scholarly practices of the Latin Middle Ages, as is manifest from the writings of Marianus Scotus, Gerland, and other “critical computists” of the eleventh and twelfth centuries. This essay enlarges the existing picture by introducing a hitherto unknown epistolary treatise of the mid-twelfth century. Written in Lotharingia in 1144, this poorly preserved work documents an attempt to reconstruct the timeline of (...) world history via techniques that had emerged within the Latin computus tradition prior to the advent of Greco-Arabic astronomy. Drawing on the so-called computus naturalis, the author performed lunar computations on the basis of observed eclipses and used them to propose new dates for the Creation and the Last Supper. He also relied on a revised estimate of the time and date of the vernal equinox, placing it on 16 March, and gave a detailed account of how this result can be derived from solar observations with a meridian line. By virtue of these methodological features, the Chronology of 1144 represents an important transitional stage between the “critical computists” and the use of eclipse-based dating methods by later scholars such as Giles of Lessines (fl. 1260). (shrink)

The last decade has witnessed a widespread resurgence of interest in Galen of Pergamum that is without parallel since the early seventeenth century. New studies of Galen's concepts of psychology and medicine have examined afresh his position in the development of scientific thought, and historians have begun to realize the wealth of material for the social history of the Antonine Age that he provides. But, despite the earlier labours of Ilberg and Bardong to restore a chronological order to the (...) many tracts that flowed readily from his pen, many of the events of his life still lack the precise dates that would enable even more valuable information to be extracted, especially upon the careers of his friends. (shrink)

In a recent JME article, Joona Räsänen makes the case for allowing legal age change. We identify three problems with his argument and, on that basis, propose an improved version thereof. Unfortunately, even the improved argument is vulnerable to the objection that chronological age is a better proxy for justice in health than both legal and what we shall call official age.

Should a person who feels his legal age does not correspond with his experienced age be allowed to change his legal age? In this paper, I argue that in some cases people should be allowed to change their legal age. Such cases would be when: 1) the person genuinely feels his age differs significantly from his chronological age and 2) the person’s biological age is recognized to be significantly different from his chronological age and 3) age change would (...) likely prevent, stop or reduce ageism, discrimination due to age, he would otherwise face. I also consider some objections against the view that people should be allowed to change their legal age and find them lacking. (shrink)

This article provides a philosophical overview of different approaches to age and ageing. It is often assumed that our age is determined by the amount of time we have been alive. Here, I challenge this belief. I argue that there are at least three plausible, yet unsatisfactory, accounts to age and ageing: the chronological account, the biological account, and the experiential account. I show that all of them fall short of fully determining what it means to age. Addressing these (...) problems, I suggest the Two‐tier principle of age: whenever the three accounts of age contradict, combine the two accounts that differ the least, and reject the third. However, while this principle does solve some difficulties, it is itself vulnerable to problems; therefore I propose we should jettison it. I conclude that there are no accounts to ageing that are satisfactory; they all come with a bullet to bite. (shrink)

Background The ideal basis of age estimation is considered to be a combination of clinical, skeletal and dental examinations. It is not easy to determine how forensic physicians take account of evidence-based data obtained from medical journals in their medical decision-making. The question of what is an ethically acceptable probability that adolescents are incorrectly considered to be over 18 has not been answered. Methods In a retrospective study over 1 year (2007), 498 files (for 141 female subjects and 357 male (...) subjects) regarding age assessment requested by the public prosecutor's office for purposes of criminal or asylum proceedings were reviewed. Chronological age was estimated from a combination of physical examination, radiographic examination of the left hand and determination of dental status. Results Estimates of chronological age in 498 subjects claiming to be 9–14 years old were incompatible with the alleged age in 356 (71%) when made by the forensic physician but in only 17 (3%) when based on data from published studies on age estimation in adolescents. Conclusions The present study suggests that in most cases the forensic physician ignores the adolescent's word. Medical mission and ethics imply a need to listen to the claims of persons in custody, whatever the risk of false claims. This situation should prompt forensic physicians to keep up with published data on estimating the age of adolescents. (shrink)

Räsänen draws a distinction between chronological age and biological age and argues that biological ageing is (sometimes) desirable. To demonstrate this, he asks us to consider the case of April, who like Karel Čapek’s Elina Makropulos, has stopped biologically ageing. Unlike Makropulos, though, April’s biological ageing was halted before puberty, so she will never mature into adulthood. Räsänen contends this case shows ageing can be desirable, but this equivocates between maturing and ageing. Here I argue biological ageing, or the (...) wear and tear normally associated with chronological ageing, isprima facieundesirable, but that maturing can beprima faciedesirable. (shrink)

Aging of the organism is associated with highly reproducible DNA methylation (DNAm) changes, which facilitate estimation of donor age. Cancer is also associated with DNAm changes, which may contribute to disease development. Here, we speculate that age‐associated DNAm changes may increase the risk of tumor initiation. Notably, when using epigenetic signatures for age‐estimations tumor cells are often predicted to be much older than the chronological age of the patient. We demonstrate that aberrant hypermethylation within the gene DNA methyltransferase 3A (...) (DNMT3A) – which may contribute to initiation of acute myeloid leukemia (AML) – is particularly observed in AML samples that reveal significantly more age‐associated DNAm changes. The functional relevance of age‐associated DNAm changes remains to be elucidated, but they occur genome wide, in a highly reproducible manner, and most likely influence chromatin organization – and hence may favor acquisition of aberrant DNAm patterns contributing to cancer in the elderly. (shrink)

Brain age prediction is a relatively new tool in neuro-medicine and the neurosciences. In research and clinical practice, it finds multiple use as a marker for biological age, for general health status of the brain and as an indicator for several brain-based disorders. Its utility in all these tasks depends on detecting outliers and thus failing to correctly predict chronological age. The indicative value of brain age prediction is generated by the gap between a brain’s chronological age and (...) the predicted age, the brain age gap (BAG). This article shows how the clinical and research use of brain age prediction tacitly pathologizes the states that it is sensitive to. It will be argued that the tacit character of this transformation conceals the need for its explicit justification. (shrink)

Martin Heidegger once wrote that the world had, in the age of modern science, become a world picture. For Rey Chow, the world has, in the age of atomic bombs, become a world target, to be attacked once it is identified, or so global geopolitics, dominated by the United States since the end of the Second World War, seems repeatedly to confirm. How to articulate the problematics of knowledge production with this aggressive targeting of the world? Chow attempts such an (...) articulation by probing the significance of the chronological proximity of area studies, poststructuralist theory, and comparative literature—fields of inquiry that have each exerted considerable influence but whose mutual implicatedness as postwar U.S. academic phenomena has seldom been theorized. Central to Chow’s discussions is a critique of the predicament of self-referentiality—the compulsive move to interiorize that, in her view, constitutes the collective frenzy of our age—in different contemporary epistemic registers, including the self-consciously avant-garde as well as the militaristic and culturally supremacist. Urging her readers to think beyond the inward-turning focus on EuroAmerica that tends to characterize even the most radical gestures of Western self-deconstruction, Chow envisions much broader intellectual premises for future transcultural work, with reading practices aimed at restoring words and things to their constitutive exteriority. (shrink)

Speculation concerning the age of the earth begins with civilisation itself. The creation myths of ancient Egypt and other early cultures were soon expanded into elaborate cosmologies by Indian, Persian and Greek philosophers. Jewish and, more insistently, Christian scholars long believed that the Bible provided an exact chronology beginning with the Creation . Such truncated apocalyptic chronologies were opposed first by Aristotelian advocates of an eternal earth and then by deistic freethinkers who regarded the earth's age as indefinite but immense. (...) As textual scholarship cast doubt upon the literal reliability of Genesis, alternative chronologies arose which depended increasingly upon geological evidence. James Hutton's assertions about the earth's age reflect his awareness of this broader context and define his own important contribution to it. (shrink)

García-Barranquero et al explore the desirability of human ageing. They differentiate between chronological and biological views of ageing and contend that the positive aspects of ageing are solely linked to chronological ageing. Consequently, the authors embrace the potential for technological interventions in biological ageing. Contrary to their stance, I argue that there are sometimes desirable aspects associated with biological ageing. Therefore, proposals aiming to eliminate, mitigate or diminish biological ageing are not without problems.

This article advances a critical phenomenology of the meaning of aging embodiment. Its broad aim is to profoundly challenge an idealized view of aging as foremost and fundamentally a natural or normative procession of “ready-made” stages pre-set “in” time (i.e., infancy, childhood, adolescence, adulthood, and “old age”) or pre-given units of time that unfurl along a timeline (i.e., chronological age), from past to present to future. Combining, defending, and adapting resources from Merleau-Ponty’s Phenomenology of Perception with a reading of (...) the concept of institution (Stiftung) via the phenomenon of puberty in Institution and Passivity: Course Notes from the Collège de France (1954-1955) as well as insights from critical gerontology, I argue that the phenomenon of aging embodiment demands to be understood in terms of transitions, that is, as an intensive reorientation in relationality, sociality, and the style in which one has a past rather than as changes along a timeline. (shrink)

The technical possibilities of biomedicine open up the opportunity to intervene in ageing itself with the aim of mitigating, reducing or eliminating it. However, before undertaking these changes or rejecting them outright, it is necessary to ask ourselves if what would be lost by doing so really has much value. This article will analyse the desirability of ageing from an individual point of view, without circumscribing this question to the desirability or undesirability of death. First, we will present the three (...) most widely used arguments to reject biomedical interventions against ageing. We will argue that only the last of these arguments provides a consistent answer to the question of the desirability of ageing. Second, we will show that the third argument falls prey to a conceptual confusion that we will call the paradox of ageing: although ageing entails negative health effects, it leads to a life stage with valuable goods. Both valuations, one positive and the other negative, refer to two different dimensions of ageing: the chronological and the biological. We will defend that, by not adequately distinguishing these two types of ageing, it does not become apparent that all the valuable goods exclusive to ageing derive only from its chronological dimension. Third, we will argue that, if we just conceive ageing biologically, it is undesirable. We will elaborate on the two kinds of undesirable effects biological ageing has: direct and indirect. Finally, we will respond to potential objections by adducing that these are insufficient to weaken our argument. (shrink)

If philosophers have discussed life as preparation for death, this seems to make aging coterminous with dying and a melancholy passage that we are condemned to survive. It is important to examine the discourse on aging and end of life and the ways various models either limit possibilities for human agency or suggest means of being innovative in relation to such parameters. I challenge developmental views of aging not by arguing for eternal life, but by using Plato’s conception of form (...) in conjunction with Simmel’s work and Arendt’s meditation on intergenerational solidarity, to evoke a picture of the subject as having capacities that offer avenues for improvisational action. This paper proposes a method for analyzing any social form as a problem-solving situation where the real “problem” is the fundamental ambiguity that inheres in the mix between the finite characteristics of the action and its infinite perplexity. I work through the most conventional chronological view of aging to show how it dramatizes a fundamental ethical collision in life that intensifies anxiety under many conditions, always raising the question of what is to be done with respect to contingency, revealing such “work” as a paradigm of the human condition. (shrink)

Forensic age estimation in living subjects is an important task for forensic experts, especially in countries where birth records are not well maintained. The process often is used to confirm the chronological age of a criminal or victim when there is a lack of available evidence, such as birth records and witnesses. Focusing on the case of Turkey where the Greulich and Pyle method is often the only method used in forensic estimation of age, this paper seeks to discuss (...) the ethical implications of the process, which are of special concern for women. (shrink)

Plato’s Symposium has no less than three dramatic dates: its narrative frame is placed in 401 BCE; Agathon’s dinner party is envisaged as having occurred in 416; finally, Plato makes Socrates meet Diotima in 440 BCE. I will argue that the multi-level chronology of the Symposium should be approached along the lines of Socrates’ intellectual history as placed against the background of Greek ideas of age classes. As a result, the Symposiumfunctions as a retrospective of Socrates’ life, which uses the (...) traditional concept of ages of man to create a paradigm of philosophical life. (shrink)

Joona Räsänen argues some people have a right to change their legal age to prevent age discrimination. He proposes two prerequisites—the person feels his age differs from his legal age, and that person’s biological age differs from his chronological age. I argue we can achieve the same protections from ageism through restricting access to one’s birth date. I review several moral reasons in favour of changing one’s legal age, concluding the enterprise is folly.

The article is devoted to postmodernism musical performance. There was realized a comprehensive retrospective analysis of the phenomenon development from ancient period to nowadays. It was proved that in ancient times interpretation was explained as a form of mythological worldview embodiment; in the Middle Ages as a way of uniting man and God; in Rrenaissance as a means of harmonizing material and spiritual components of personality; in Baroque as a method of theatricality of person's existence; in Classicism as an opportunity (...) to assert the power of human mind; Romanticism emphasized emotionality and subjectivity of concerting, the unique role of master; Modernism declared freedom of interpretation. Understanding the essence of musical performance with each historical stage became deeper, was enriched with new terminological, depth of scientific and theoretical understanding. The musical performance of postmodernism as a unique phenomenon has its own chronology of formation and development, based on achievements of previous epochs, transformed in accordance to philosophical aesthetics of the late XX century. Its outstanding constitutive qualities are: anthropology, religiosity, spirituality, meditation, improvisation, humanism, dialogicity, theatricality, rationalism, intellectualism, emotionality, playing, intertextuality, polystylistics etc. The performing art of postmodernism embodies the conceptual principles of its time: pluralism, irony, collage, synthesis, the death of the author, so on. It unites, eclectically mixes different artistic traditions and views, it forms a unique interpretive vision of musical text, demonstrates openness to dialogue with different historical epochs and civilizations, aimed at both the elite and the mass audience. (shrink)

The turn of the nineteenth century marked a rich and exciting explosion of philosophical energy and talent. The enormity of the revolution set off in philosophy by Immanuel Kant was comparable, in Kant's own estimation, with the Copernican Revolution that ended the Middle Ages. The movement he set in motion, the fast-moving and often cantankerous dialectic of "German Idealism," inspired some of the most creative philosophers in modern times: including G. W. F. Hegel and Arthur Schopenhauer as well as those (...) who reacted against Kant--Marx and Kierkegaard, for example. This volume traces the emergence of German Idealism from Kant and his predecessors through the first half of the nineteenth century, ending with the irrationalism of Kierkegaard. It provides a broad, scholarly introduction to this period for students of philosophy and related disciplines, as well as some original interpretations of these authors. Also included is a glossary of technical terms as well as a chronological table of philosophical, scientific and other important cultural events. (shrink)

The turn of the nineteenth century marked a rich and exciting explosion of philosophical energy and talent. The enormity of the revolution set off in philosophy by Immanuel Kant was comparable, by Kant's own estimation, with the Copernican Revolution that ended the Middle Ages. The movement he set in motion, the fast-moving and often cantankerous dialectic of `German Idealism', inspired some of the most creative philosophers in modern times: including G.W.F. Hegel and Arthur Schopenhauer as well as those who reacted (...) against Kant - Marx and Kierkegaard, for example. This volume traces the emergence of German Idealism from Kant and his predecessors through the first half of the nineteenth century, ending with the irrationalism of Kierkegaard. It provides a broad, scholarly introduction to this period for students of philosophy and related disciplines, as well as some original interpretations of these authors. Each chapter is written by a distinguished scholar in the field. A glossary of technical terms together with a chronological table of philosophical, scientific and other important cultural events are provided. (shrink)

It has been well documented, and fairly well known, that concomitant with an increase in chronological age is a corresponding increase in sensory impairment. As most people realize, our hearing suffers as we get older; hence, the increased need for hearing aids. The first portion of the present paper is how the change in age apparently affects auditory judgments of sound source position. A summary of the literature evaluating the changes in the perception of sound source location and the (...) perception of sound source motion as a function of chronological age is presented. The review is limited to empirical studies with behavioral findings involving humans. It is the view of the author that we have an immensely limited understanding of how chronological age affects perception of space when based on sound. In the latter part of the paper, discussion is given to how auditory spatial perception is traditionally conducted in the laboratory. Theoretically, beneficial reasons exist for conducting research in the manner it has been. Nonetheless, from an ecological perspective, the vast majority of previous research can be considered unnatural and greatly lacking in ecological validity. Suggestions for an alternative and more ecologically valid approach to the investigation of auditory spatial perception are proposed. It is believed an ecological approach to auditory spatial perception will enhance our understanding of the extent to which individuals perceive sound source location and how those perceptual judgments change with an increase in chronological age. (shrink)