Results for 'Vandna Jerath'

16 found
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  1. Physiology of Long Pranayamic Breathing: Neural Respiratory Elements May Provide a Mechanism That Explains How Slow Deep Breathing Shifts the Autonomic Nervous System.Jerath Ravinder, James W. Edry, Vernon A. Barnes & Vandna Jerath - 2006 - Medical Hypotheses 67 (3):566-571.
    Pranayamic breathing, defined as a manipulation of breath movement, has been shown to contribute to a physiologic response characterized by the presence of decreased oxygen consumption, decreased heart rate, and decreased blood pressure, as well as increased theta wave amplitude in EEG recordings, increased parasympathetic activity accompanied by the experience of alertness and reinvigoration. The mechanism of how pranayamic breathing interacts with the nervous system affecting metabolism and autonomic functions remains to be clearly understood. It is our hypothesis that voluntary (...)
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  2. Neural Correlates of Visuospatial Consciousness in 3D Default Space: Insights From Contralateral Neglect Syndrome.Ravinder Jerath & Molly W. Crawford - 2014 - Consciousness and Cognition 28:81-93.
    One of the most compelling questions still unanswered in neuroscience is how consciousness arises. In this article, we examine visual processing, the parietal lobe, and contralateral neglect syndrome as a window into consciousness and how the brain functions as the mind and we introduce a mechanism for the processing of visual information and its role in consciousness. We propose that consciousness arises from integration of information from throughout the body and brain by the thalamus and that the thalamus reimages visual (...)
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  3. Dynamic Change of Awareness During Meditation Techniques: Neural and Physiological Correlates.Jerath Ravinder, Vernon A. Barnes, David Dillard-Wright, Shivani Jerath & Brittany Hamilton - 2012 - Frontiers in Human Neuroscience 6:1-5.
    Recent fndings illustrate how changes in consciousness accommodated by neural correlates and plasticity of the brain advance a model of perceptual change as a function of meditative practice. During the mindbody response neural correlates of changing awareness illustrate how the autonomic nervous system shifts from a sympathetic dominant to a parasympathetic dominant state. Expansion of awareness during the practice of meditation techniques can be linked to the Default Mode Network (DMN), a network of brain regions that is active when the (...)
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  4.  87
    Mechanism of Development of Pre-Eclampsia Linking Breathing Disorders to Endothelial Dysfunction.Jerath Ravinder, Vernon A. Barnes & Hossam E. Fadel - 2009 - Medical Hypotheses 73:163-166.
    High blood pressure is an important component of pre-eclampsia. The underlying mechanism of development of hypertension in pre-eclampsia is complicated and still remains obscure. Several theories have been advanced including endothelial dysfunction, uteroplacental insufficiency leading to generalized vasoconstriction, increased cardiac output, and sympathetic hyperactivity. Increased blood flow and pressure are thought to lead to capillary dilatation, which damages end-organ sites, leading to hypertension, proteinuria and edema. Additional theories have been put forward based on epidemiological research, implicating immunological and genetic factors. (...)
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  5. Self-Regulation of Breathing as a Primary Treatment for Anxiety.Jerath Ravinder, Molly W. Crawford, Vernon A. Barnes & Kyler Harden - 2015 - Applied Pscyophysiology and Biofeedback 40:107-115.
    Understanding the autonomic nervous system and homeostatic changes associated with emotions remains a major challenge for neuroscientists and a fundamental prerequisite to treat anxiety, stress, and emotional disorders. Based on recent publications, the inter-relationship between respiration and emotions and the influence of respiration on autonomic changes, and subsequent widespread membrane potential changes resulting from changes in homeostasis are discussed. We hypothesize that reversing homeostatic alterations with meditation and breathing techniques rather than targeting neurotransmitters with medication may be a superior method (...)
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  6. MIND-BODY RESPONSE AND NEUROPHYSIOLOGICAL CHANGES DURING STRESS AND MEDITATION: CENTRAL ROLE OF HOMEOSTASIS.Jerath Ravinder, Vernon A. Barnes & Molly W. Crawford - 2014 - Journal of Biological Regulators and Homeostatic Agents 28 (4):545-554.
    Stress profoundly impacts quality of life and may lead to various diseases and conditions. Understanding the underlying physiological and neurological processes that take place during stress and meditation techniques may be critical for effectively treating stress-related diseases. The article examines a hypothetical physiological homeostatic response that compares and contrasts changes in central and peripheral oscillations during stress and meditation, and relates these to changes in the autonomic system and neurological activity. The authors discuss how cardiorespiratory synchronization, which occurs during the (...)
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  7. How Does the Body Affect the Mind? Role of Cardiorespiratory Coherence in the Spectrum of Emotions.Jerath Ravinder & Molly W. Crawford - 2015 - Advances in Mind-Body Medicine 29 (4):1-13.
    The brain is considered to be the primary generator and regulator of emotions; however, afferent signals originating throughout the body are detected by the autonomic nervous system (ANS) and brainstem, and, in turn, can modulate emotional processes. During stress and negative emotional states, levels of cardiorespiratory coherence (CRC) decrease, and a shift occurs toward sympathetic dominance. In contrast, CRC levels increase during more positive emotional states, and a shift occurs toward parasympathetic dominance. Te dynamic changes in CRC that accompany different (...)
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  8. How Lateral Inhibition and Fast Retinogeniculo-Cortical Oscillations Create Vision: A New Hypothesis.Jerath Ravinder, Shannon M. Cearley, Vernon A. Barnes & Elizabeth Nixon-Shapiro - 2016 - Medical Hypotheses 96:20-29.
    The role of the physiological processes involved in human vision escapes clarification in current literature. Many unanswered questions about vision include: 1) whether there is more to lateral inhibition than previously proposed, 2) the role of the discs in rods and cones, 3) how inverted images on the retina are converted to erect images for visual perception, 4) what portion of the image formed on the retina is actually processed in the brain, 5) the reason we have an after-image with (...)
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  9. Etiology of Phantom Limb Syndrome: Insights From a 3D Default Space Consciousness Model.Jerath Ravinder, Molly W. Crawford & Mike Jensen - 2015 - Medical Hypotheses 85 (2):153-259.
    In this article, we examine phantom limb syndrome to gain insights into how the brain functions as the mind and how consciousness arises. We further explore our previously proposed consciousness model in which consciousness and body schema arise when information from throughout the body is processed by corticothalamic feedback loops and integrated by the thalamus. The parietal lobe spatially maps visual and non-visual information and the thalamus integrates and recreates this processed sensory information within a three-dimensional space termed the ‘‘3D (...)
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  10. Widespread Depolarization During Expiration: A Source of Respiratory Drive?Jerath Ravinder, Molly W. Crawford, Vernon A. Barnes & Kyler Harden - 2014 - Medical Hypotheses 84 (1):31-37.
    Respiration influences various pacemakers and rhythms of the body during inspiration and expiration but the underlying mechanisms are relatively unknown. Understanding this phenomenon is important, as breathing disorders, breath holding, and hyperventilation can lead to significant medical conditions. We discuss the physiological modulation of heart rhythm, blood pressure, sympathetic nerve activity, EEG, and other changes observed during inspiration and expiration. We also correlate the intracellular mitochondrial respiratory metabolic processes with real-time breathing and correlate membrane potential changes with inspiration and expiration. (...)
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  11. Functional Representation of Vision Within the Mind: A Visual Consciousness Model Based in 3D Default Space.Jerath Ravinder, Molly W. Crawford & Vernon A. Barnes - 2015 - Journal of Medical Hypotheses and Ideas 9:45-56.
    The human eyes and brain, which have finite boundaries, create a ‘‘virtual’’ space within our central nervous system that interprets and perceives a space that appears boundless and infinite. Using insights from studies on the visual system, we propose a novel fast processing mechanism involving the eyes, visual pathways, and cortex where external vision is imperceptibly processed in our brain in real time creating an internal representation of external space that appears as an external view. We introduce the existence of (...)
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  12. Augmentation of Mind-Body Therapy and Role of Deep Slow Breathing.Jerath Ravinder & Vernon A. Barnes - 2009 - Journal of Complementary and Integrative Medicine 1:1-7.
    Mind-body therapies have been shown to be effective in clinical treatment of disorders such as high blood pressure and stress. Significant differences in the effectiveness of mind–body therapies have been shown and a common link among the therapies has yet to be defined. This article overviews the role of slow rhythmic breathing in physiological as well as therapeutic effects of mind-body therapies. Slow deep breathing practice has important implications as it may underlie the basic mechanism that synchronizes the brain with (...)
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  13. The Dynamic Role of Breathing and Cellular Membrane Potentials in the Experience of Consciousness.Jerath Ravinder, Shannon M. Cearley, Vernon A. Barnes & Santiago Junca - 2017 - World Journal of Neuroscience 7:66-81.
    Understanding the mechanics of consciousness remains one of the most important challenges in modern cognitive science. One key step toward understanding consciousness is to associate unconscious physiological processes with subjective experiences of sensory, motor, and emotional contents. This article explores the role of various cellular membrane potential differences and how they give rise to the dynamic infrastructure of conscious experience. This article explains that consciousness is a body-wide, biological process not limited to individual organs because the mind and body are (...)
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  14. Meditation Experiences, Self, and Boundaries of Consciousness.Jerath Ravinder, Shannon M. Cearley, Vernon A. Barnes & Mike Jensen - 2016 - International Journal of Complementary and Alternative Medicine 4 (1):1-11.
    Our experiences with the external world are possible mainly through vision, hearing, taste, touch, and smell providing us a sense of reality. How the brain is able to seamlessly integrate stimuli from our external and internal world into our sense of reality has yet to be adequately explained in the literature. We have previously proposed a three-dimensional unified model of consciousness that partly explains the dynamic mechanism. Here we further expand our model and include illustrations to provide a better conception (...)
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  15. Functional and Neural Mechanisms of Out-of-Body Experiences: Importance of Retinogeniculo-Cortical Oscillations.Jerath Ravinder, Shannon M. Cearley, Vernon A. Barnes & Mike Jensen - 2016 - World Journal of Neuroscience 6:287-302.
    Current research on the various forms of autoscopic phenomena addresses the clinical and neurological correlates of out-of-body experiences, autoscopic hallucinations,and heautoscopy. Yet most of this research is based on functional magnetic resonance imaging results and focuses predominantly on abnormal cortical activity. Previously we proposed that visual consciousness resulted from the dynamic retinogeniculo-cortical oscillations, such that the photoreceptors dynamically integrated with visual and other vision-associated cortices, and was theorized to be mapped out by photoreceptor discs and rich retinal networks which synchronized (...)
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  16.  27
    Widespread Membrane Potential Changes and Cardiorespiratory Synchonization Involved in Anxiety and Sleep-Wake Transitions.Jerath Ravinder, Shannon M. Cearley & Mike Jensen - 2016 - Journal of Biological Regulators and Homeostatic Agents 30 (4):935-944.
    Located within the ascending reticular activating system are nuclei which release neurotransmitters such as acetylcholine, serotonin, dopamine, and norepinephrine. These nuclei have widespread projections that extend into the limbic system and throughout cortex. Activation of these neurotransmitters during awake states leads to arousal, while inhibition leads to the loss of consciousness experienced during slow-wave sleep. Previously, we proposed a mechanism in which cardiorespiratory synchronization may underlie the widespread hyperpolarization that occurs throughout the brain during slow-wave sleep. We further propose that (...)
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