Download or read book Progress in Sensory Physiology 9 written by and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sympathetic afferent fibers originate from a visceral organ, course in the thoracolumbar rami communicantes, have cell bodies located in dorsal root ganglia, and terminate in the gray matter of the spinal cord. Sympathetic afferent fibers from the heart transmit information about noxious stimuli associated with myocardial ischemia, i. e. angina pectoris. Previous reviews have described the characteristics of cardiovascular sympathetic afferent fibers (Bishop et al. 1983; Malliani 1982). This review summarizes that work and focuses on the neural mechanisms underlying the complexities of angina pectoris. In order to understand anginal pain, cells forming the classical pain pathway, the spinothalamic tract (STn, were chosen for study. These cells were chosen to address questions about anginal pain because they transmit nociceptive informa of pain. Antidromic tion to brain regions that are involved in the perception activation of STT cells provided a means of identifying cells involved with trans mission of nociceptive information in anesthetized animals. Other ascending pathways may also transmit nociceptive information, but many studies show that the STT plays an important role. Visceral pain is commonly referred to overlying somatic structures. The pain of angina pectoris can be sensed over a wide area of the thorax: in the retrosternal, precordial anterior thoracic, and anterior cervical regions of the chest; in the left or sometimes even the right shoulder, arm, wrist, or hand; or in the jaw and teeth (Harrison and Reeves 1968).
Download or read book Progress in sensory physiology written by 10 a85 and published by . This book was released on 1985 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Progress in Sensory Physiology written by and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 211 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Progress in Sensory Physiology written by Hansjochem Autrum and published by Springer. This book was released on 1985 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Progress in Sensory Physiology written by and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 231 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Progress in Sensory Physiology written by W. Skrandies and published by . This book was released on 1987 with total page 93 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Progress in Sensory Physiology written by R. C. Hardie and published by Springer Verlag. This book was released on 1985-01-01 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Progress in Sensory Physiology written by and published by Springer. This book was released on 1991-04-25 with total page 241 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Progress in Sensory Physiology written by and published by . This book was released on 1981 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Progress in Sensory Physiology written by Hansjochem Autrum and published by Springer. This book was released on 1981 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Progress in Sensory Physiology written by Hansjochem Autrum and published by Springer Verlag. This book was released on 1981-01 with total page 187 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Progress in Sensory Physiology written by H. Autrum and published by Springer Verlag. This book was released on 1991-01-01 with total page 241 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Progress in Sensory Physiology written by and published by Springer. This book was released on 1985-12-01 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt: 1. Themeanrestingmembranepotentialofrattaste cells is - 36 mVunderadap tation of the tongue to 41.4 mMNaCI and - 50mV under water adaptation. 2. The shapes ofreceptor potentials ofrattastecells inresponsetothe four basic tastestimuli(0.5MNaCI, 0.02 M Q-HCI, 0.01 MHCl, and0.5 M sucrose)are classified into three types, namely (1) a depolarization alone, (2) a depolariza tion preceded by a transient hyperpolarization, and (3) a hyperpolarization alone. No regenerative spike potentials are evoked in rat taste cells by chemical stimuli. The amplitude of rat taste cell responses increases with increasing concentrationofthe taste stimulus. Mostofthe rat taste cells show a multiple sensitivity in that single cells respond to various combinations of the four basic taste stimuli with depolarizations or hyperpolarizations. 3. The rise and fall times of depolarizing responses to 0.5 M NaCI are much shorter than those of depolarizing responses to the other three stimuli. The fall time of depolarization evoked by 0.01 M HCI is the longest. The rise and fall times of all hyperpolarizing responses are shorter than those of all de polarizing responses.
Download or read book Progress in Sensory Physiology written by and published by Springer. This book was released on 1983-07-01 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt: The study of the functional organization of the first synapse of the centripetal visual pathway at the outer plexiform layer level (OPL) ought to be made through the application of combined histological, electrophysiological, and neurochemical techniques. A large amount of new evidence has been accumu lated in the past 20 years on the structure of the retina and on the electrical responses of retinal cells to light stimulus. Also, recently, many substances considered as neurotransmitters in the brain have been found in the retina. The goal of the study of retinal function is to integrate the data obtained by structural and electrophysiological techniques and to identify and determine the role played by neurotransmitters or neuromodulators in the function of the retina. In this study it is important to realize the morphological and biochemical diversi ty displayed by the visual cells in the vertebrate retina which, according to Cresci telli (1972), has been produced "through the interaction of natural selection with diversity in the photic environment." The evidence obtained shows that bipolar and especially horizontal cells, closely related to visual cells, display morphologi cal and probably biochemical differences among classes, genus, and even species according to the photic environment. These differences give peculiarities to the organization of the OPL, which must be taken into account when studying a par ticular retina with electrophysiological or neurochemical techniques.
Download or read book Sensory Physiology and Behavior written by Rachel Galun and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt: In a recent book Arthur Koestler describes very cynically the superfluity of scientific meetings. He lists the various gatherings that are going to take place in one brief summer season in the Kon gresshaus of a small Swiss village, ending the long list with three interdisciplinary symposia, titles of which contain the three words "Environment", "Pollution", and "Future" in three different permu tations. By the same token, Koestler could list endlessly meetings on sensory physiology and behaviour or their synonyms, which have taken place allover the world on the national or international level in recent years. The organizing committee of the Oholo conferences was very well aware of this situation when the topic for the 19th Conference was selected. However this field is relatively new in Israel - only in the last decade were several teams established in this country to carry out combined studies on sensory physiology and behaviour. They attracted ever-increasing numbers of students of zoology, phy siology, medicine and psychology. The committee thought that the time was ripe to bring the Israeli students and scientists together with noted investigators from allover the world, to discuss and analyse the state of the art. The Conference dealt with processing of information obtained through the various senses: visual, auditory, tactile, as well as the olfactory and gastatory senses. More complex behavioural patterns were also analysed.
Download or read book Fundamentals of Sensory Physiology written by Robert F. Schmidt and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since 1978 this textbook, to the gratification of its authors and publisher, has found an undiminished readership. Recent research in sensory physiology has progressed so rapidly that this third edition, like the second, has required thorough revision. The understanding of pain, in particular, has increased to a remarkable degree. This development is reflected here in the appearance, for the first time, of a chapter devoted entirely to the subject "Nociception and Pain". In view of the great clinical significance of pain, it seemed necessary to broaden the scope of the discussion, so that in addition to the aspects directly related to sensory physiology consideration is given to the pathophysiology, pharmacology and psychology of pain. The chapters present in earlier editions have also been carefully reexamined and, where necessary, revised and extended. Most of the illustrations provided for the first edition by the Stuttgart studio Gay & Benz have been retained. Some required alteration or replacement, and a number of new illustrations have been added. For the meticulous skill with which she transformed our ideas into graphs and drawings, we are most grateful to Mrs. Regine Gattung-Petith.
Download or read book Development of Sensory Systems written by C. M. Bate and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 473 pages. Available in PDF, EPUB and Kindle. Book excerpt: This preface is addressed to the reader who wishes to inquire into the prevailing concepts, hypotheses and theories about development of sensory systems and wants to know how they are exemplified in the following chapters. I believe that science is hypothesis and theory and that the growth and evolution of any branch of science can be measured by the degree to which its theories have been reified. By that standard, one must conc1ude that developmental neuro biologie is in its infancy. The rapid accumulation of observations which has occurred in this branch of science in the past century leads to progress only to the extent that the facts validate or falsify hypotheses. The following chapters show that we have a plethora of facts but a dearth of hypotheses. Another index of the maturity of any branch of science is its level of historical self-awareness. Because the history of any branch of science is essentially the history of ideas and of the rise and fall of theories, the level of historical awareness is related to the extent to which reification of its hypothetical constructs has advanced. It is largely because few theories of development of sensory systems, or indeed, of developmental neurobiology, have progressed far in the process of reification that the his tory of developmental neurobiology remains unwritten. The subject of this volume is hardly mentioned in the many books devoted to the history of related disciplines.
