One problem of interpreting research on subconscious processing is the possibility that participants are weakly conscious of the stimuli. Here, we compared the fMRI BOLD response in healthy adults to clearly visible single letters with the response to letters presented in the absence of any behavioural evidence of visibility . No letter catch trials served as a control condition. Forced-choice responses did not differ from chance when letter-to-background contrast was low, whereas they were almost 100% correct when contrast was high. (...) A comparison of fMRI BOLD signals for supraliminal and subliminal letters with the control trials revealed a signal increase in left BA 37 . Comparison of supraliminal with subliminal letters showed a significant increase in the right inferior frontal gyrus . Finally, a comparison of subliminal with supraliminal letters showed increases in the left middle temporal gyrus and the right extrastriate cortex. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Bibliography of Resources by and about André E. Hellegers*Compiled by Doris Mueller Goldstein (bio)This bibliography is derived from the holdings of the National Reference Center for Bioethics Literature and the BIOETHICSLINE© database (both of which are at the Kennedy Institute of Ethics and supported by the National Library of Medicine); the archives of Lauinger Library, Georgetown University; the Medline databases of the National Library of Medicine; the WorldCat (...) database of OCLC, Dublin, Ohio, and selected Internet sites.Primarily comprised of writings by Dr. Hellegers, the list also includes interviews and media programs in which he participated, as well as writings about him that were written following his death. The arrangement within each section is by date. The 231 authored pieces reflect the transition from Dr. Hellegers’s early career as a researcher in fetal physiology at Johns Hopkins Medical School, where he published his first research report at the age of 29, to the early years of the Kennedy Institute, where he produced so many provocative columns on bioethical issues that influenced the growth of the field.Due to the diversity of sources and the 40-year time span covered, there are some variations in bibliographic style. Time and availability constraints precluded verifying all of the citations with the original documents. Any additions or corrections should be submitted to the compiler.Works Authored by André E. HellegersNo Date Ethical Issues in Sterilization of the Retarded. Unpublished paper.1956Vitamin B12 Serum Level and Pregnancy. American Journal of Clinical Nutrition 4: 440+, 1956. [With Bacon F. Chow and Kunio Okuda] [End Page 89]1957Vitamin B12 Absorption in Pregnancy and in the Newborn. American Journal of Clinical Nutrition 5: 327+, 1957. [With Bacon F. Chow, Robert E. L. Nesbitt, Kunio Okuda, and David W. Smith]1958The Effects of Acute Hypoxia on the Osmotic Pressure of the Plasma. Quarterly Journal of Experimental Physiology 43: 197+, 1958. [With Donald H. Barron, Frederick C. Battaglia, and Giacomo Meschia]Studies on the Absorption of Vitamin B12 in Human Pregnancy with Especial Reference to the Effect of D-Sorbitol. American Journal of Obstetrics and Gynecology 76: 91+, 1958. [With Bacon F. Chow, Harry Prystowsky, and Vernon Wong]1959The Alveolar PCO2 and PO2 in Pregnant and Nonpregnant Women at Altitude. Proceedings of the Society for Clinical Investigation 38: 1010+, 1959. [With Donald Barron, William Huckabee, Giacomo Meschia, James Metcalfe, and Harry Prystowsky]A Comparison of the Oxygen Dissociation Curves of the Bloods of Maternal and Fetal Goats at Various pHs. Quarterly Journal of Experimental Physiology 44: 215–21, July 1959. [With Donald Barron, Giacomo Meschia, Harry Prystowsky, and A. Stark Wolkoff]Fetal Blood Studies. XII. On the Relationship Between the Position of the Oxygen Dissociation Curve of Human Fetal Blood and Adult Fetal Hemoglobin. American Journal of Obstetrics and Gynecology 77: 585+, 1959. [With Paul D. Bruns, Julian Cotter, and Harry Prystowsky]Fetal Blood Studies. XIV. A Comparative Study of the Oxygen Dissociation Curve of Nonpregnant, Pregnant and Fetal Human Blood. American Journal of Obstetrics and Gynecology 78: 489–93, September 1959. [With Paul D. Bruns and Harry Prystowsky]Fetal Blood Studies. XVI. On the Changes in Total Osmotic Pressure and Sodium and Potassium Concentration of Amniotic Fluid During the Course of Human Gestation. Surgery, Gynecology and Obstetrics 109: 509–12, October 1959. [With Frederick Battaglia, Paul D. Bruns, Harry Prystowsky, and Clayton Smisson]Further Observations on the Metabolism of Vitamin B12 in Human Pregnancy. American Journal of Obstetrics and Gynecology 77: 1+, 1959. [With Bacon F. Chow, Harry Prystowsky, Bruno Ranke, and Elma Ranke]The Oxygen Dissociation Curves of the Bloods of Adult and Fetal Llamas. Federation Proceedings 18, 1959. [With Donald Barron, William Huckabee, Giacomo Meschia, James Metcalfe, and Harry Prystowsky] [End Page 90]Transfer of Oxygen Across the Sheep Placenta at High Altitude. Federation Proceedings 18, 1959. [With Donald Barron, William Huckabee, Giacomo Meschia, and Harry Prystowsky]Uterine Blood Flow and Metabolism in Pregnant Sheep at High Altitude. Federation Proceedings 18, 1959. [With Donald Barron, William Huckabee, Giacomo Meschia, James Metcalfe, and Harry Prystowsky]Uterine Blood Flow and Metabolism in Unanesthetized Pregnant Sheep. Federation Proceedings 18, 1959. [With Donald Barron, William Huckabee, Giacomo... (shrink)

F. H. Bradley was the foremost philosopher of the British Idealist school, which came to prominence in the second half of the nineteenth century and remained influential into the first half of the twentieth. Bradley, who was educated at Oxford, and spent his life as a fellow of Merton College, was influenced by Hegel, and also reacted against utilitarianism. He was recognised during his lifetime as one of the greatest intellectuals of his generation and was the first philosopher to receive (...) the Order of Merit, in 1924. In this major work, originally published in 1883, Bradley discusses the basic principles of logic: judgment and inference. He rejects the idea of a separation between mind and body, arguing that human thought cannot be separated from its worldly context. In the second edition, published in 1922 and reissued here, Bradley added a commentary and essays, but left the text largely unaltered. (shrink)

The first study of Plutarch's prose-rhythm was made by Dr. A. W. de Groot, whose results were published in certain preliminary articles and in his Handbook of Greek Prose Rhythm, a work which is one of the landmarks in the history of its subject. In it he insisted that to discover which forms of clausula were favoured or avoided by any author it was not sufficient to make a count and discover which were frequent, which infrequent; for a form may (...) be frequent not because an author feels it suitable for the end of a sentence, but because he likes it at any point in his sentence, or even because we should find it frequent if we picked out words by chance from the dictionary. To discover which rhythms are specially sought or avoided at the end of a sentence we must compare the ends with the sentence as a whole. This Dr. de Groot did for a number of texts, included in which were selections from Plutarch's Lives. (shrink)

F. H. Bradley was the foremost philosopher of the British Idealist school, which came to prominence in the second half of the nineteenth century and remained influential into the first half of the twentieth. Bradley, who was influenced by Hegel and also reacted against utilitarianism, was recognised during his lifetime as one of the greatest intellectuals of his generation, and was the first philosopher to receive the Order of Merit, in 1924. In this major work, originally published in 1883, Bradley (...) discusses the basic principles of logic: judgment and inference. He rejects the idea of a separation between mind and body, arguing that human thought cannot be separated from its worldly context. In the second edition, published in 1922 and reissued here, Bradley added a commentary and essays, but left the text largely unaltered. Volume 1 contains Book 1 on judgment and Book 2 on inference. (shrink)

The starting-point of Plutarch's dialogue de communibus notitiis is a claim made by the Stoics that Providence sent Chrysippus to remove the confusion surrounding the ideas of ννοια and πρληψισ before the subtleties of Carneades were brought into play. Unfortunately our surviving information on the subject is so much less full than could be desired that it has again returned to an obscurity from which there are only two really detailed modern attempts to remove it. The one, by L. Stein (...) , is most unsatisfactory; the other, by A. Bonhöffer , though of the greatest value in many ways, is vitiated by the fact that it constructs a system from the use of the words by Epictetus and then attempts to attach this system to the old Stoa in the face of the evidence of the doxographers, which is emended or violently interpreted to suit Epictetus. Even if Epictetus were in general a good authority for the technicalities of Chrysippus—and in the opinion of H. von Arnim he is not— this would not be a sound method of procedure. The only safe way is to take first the statements which can be attached to the Old Stoa, and having obtained our results from these, to see whether Epictetus does in fact agree. (shrink)

The Tree of Nature represents an IT-based approach to understanding Nature in the light of present-day scientific knowledge. The universe, in this view, consists of discrete entities; these are not material particles, however, but information processing events that produce observable changes in the world. The surprising result of this analysis is that the workings of Nature are based on a decision tree consisting of two dozen parameters. The tree is similar to the evolutionary phylogenetic system of the various forms of (...) life, but it is far more fundamental; constituting, as it does, the very base of everything that exists. The overall conclusion is that the universe is steadily producing new information. Metaphorically speaking, it constitutes a self-unfolding story in which events do not pass away into non-existence but instead remain forever as an indelible part of the whole. This also holds true for integrated sets of events, such as the lifetime experiences of an individual. The Tree of Nature leads to the following testable prediction: A successful quantum-gravity theory will involve the notion of a strong complementarity between gravity and the strong nuclear force. (shrink)