Somesthesis and the Neurobiology of the Somatosensory Cortex


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Abilities and mechanisms. Serial processing in the Somatosensory system of macaques. Evidence from studies of the neural. Form processing and attention effects in the Somatosensory system. Functional plasticity of cortical representations of the hand.

Somatotopic Representation of Second Pain in the Primary Somatosensory Cortex of Humans and Rodents

Sensorymotor interface. A second tactile system in the human skin with unmyelinated primary afferents. Changing the intended direction of movement. Representation of the shape and contact force of handled objects in populations. Recent technological breakthroughs in basic sciences hold promise for advancing our understanding of the pathophysiology of schizophrenia spectrum disorders.

This collective monograph reviewers recent researches regarding the origins, onset, course, and outcome of schizophrenia spectrum disorders. In particular, this book will be illustrate new developments in terms of conceptual models, and research methodology, genetics and genomics, brain imaging and neurochemical studies, neurophysiology and information processing in schizophrenia spectrum disorders patients. Also will be highlighted new developments in our understanding of the childhood psychosis, prodromal and first-episode states, in treatment and rehabilitation. Thus, the purpose of this book is to provide up-to-date overview of the rapid advances made in the clinical and basic science studies supporting our understanding of the relationship between cerebral processes and clinical, cognitive and other presentations of the schizophrenia spectrum disorders.

In addition, this book aims to monitor important research developments, which may be relevant to treatment, and rehabilitation of patients.

Somatosensory system

John M. Ever wonder why some people have difficulty recognizing faces or why food found delicious in one culture is reviled in another? Henshaw ponders these and other surprising facts in this fascinating and fast-paced tour of the senses. Handbook of Cognitive Neuroscience. Michael S. The 39 chapters in this volume consider subjects ranging from genetics, markers, and molecular biology of alcoholism, to clinical observations and treatment. The aim is to integrate pertinent information from the fields of molecular and cell biology with view to establishing a molecular basis of alcohol use and abuse.

An initial preview summarizes historical aspects of alcohol use, and subsequent chapters concern novel drugs, pharmacological aspects, gene structures, cloning, and enzymatic properties. Also contributions by "non-traditional" alcohol scientists have been included in this collection, in order to highlight possible interaction and parallels between different fields. Novel results of particular interest include up-dated summaries on receptors, enzymes, and other proteins, as well as corresponding gene structures and regulation, setting the basis for distinguishing markers and pinpointing further possible pharmacological treatments.

INTERVIEW WITH BRAIN REGIONS SOMATOSENSORY CORTEX

Patrick Haggard. Used for gestures of communication, environmental exploration, and the grasping and manipulating of objects, the hand has a vital role in our lives. The hand's anatomical structure and neural control are among the most complex and detailed of human motor systems. Hand and Brain is a comprehensive overview of the hand's sensorimotor control.

It discusses mediating variables in perception and prehension, the coordination of muscles with the central nervous system, the nature of movement control and hand positioning, hand-arm coordination in reaching and grasping, and the sensory function of the hand. In the last decade the rapid growth of neuroscience has been paralleled by a surge of interest in hand function. This reflects the fact that many of the fundamental issues facing neuroscientists today--including the problem of relating physiology to behavior--are central to the study of sensorimotor control of the hand.

Affective touch is a type of sensory information that elicits an emotional reaction and is usually social in nature, such as a physical human touch. This type of information is actually coded differently than other sensory information. Intensity of affective touch is still encoded in the primary somatosensory cortex and is processed in a similar way to emotions invoked by sight and sound, as exemplified by the increase of adrenaline caused by the social touch of a loved one, as opposed to the physical inability to touch someone you don't love.

Meanwhile, the feeling of pleasantness associated with affective touch activates the anterior cingulate cortex more than the primary somatosensory cortex.


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Functional magnetic resonance imaging fMRI data shows that increased blood-oxygen-level contrast BOLD signal in the anterior cingulate cortex as well as the prefrontal cortex is highly correlated with pleasantness scores of an affective touch. Inhibitory transcranial magnetic stimulation TMS of the primary somatosensory cortex inhibits the perception of affective touch intensity, but not affective touch pleasantness. Therefore, the S1 is not directly involved in processing socially affective touch pleasantness, but still plays a role in discriminating touch location and intensity.

A variety of studies have measured and investigated the causes for differences between individuals in the sense of fine touch. One well-studied area is passive tactile spatial acuity, the ability to resolve the fine spatial details of an object pressed against the stationary skin. A variety of methods have been used to measure passive tactile spatial acuity, perhaps the most rigorous being the grating orientation task.

The Cutaneous Rabbit Illusion Affects Human Primary Sensory Cortex Somatotopically

Remarkably, index finger passive tactile spatial acuity is better among adults with smaller index fingertips; [26] this effect of finger size has been shown to underlie the better passive tactile spatial acuity of women, on average, compared to men. Perhaps also due to cortical plasticity, individuals who have been blind since birth reportedly consolidate tactile information more rapidly than sighted people. A somatosensory deficiency may be caused by a peripheral neuropathy involving peripheral nerves of the somatosensory system.

This may present as numbness or paresthesia.


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Haptic technology can provide touch sensation in virtual and real environments. From Wikipedia, the free encyclopedia. For other uses, see Touch disambiguation. Widely distributed parts of the sensory nervous system. It has been suggested that portions of Feeling be split from it and merged into this article. Discuss December See also: Two-point discrimination.

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Main article: Somatosensory disorder. Main articles: Haptic technology and Haptic communication. Allochiria Cell signalling Golgi tendon organ Haptic communication Haptic perception Muscle spindle Molecular cellular cognition Phantom limb Sensory maps Somatosensory Rehabilitation of Pain Special senses Supramarginal gyrus Tactile illusion Vibratese , method of communication through touch Tactile imaging.

Franzen, R. Johansson, L. IEEE Multimedia. McCann, Stephanie.

A Simple Explanation. HubPages, 19 July Bibcode : Sci Sensors Basel, Switzerland. The European Journal of Neuroscience. Cerebral Cortex. Anatomy and Physiology 3rd edd. McGraw-Hill, New York.

Somesthesis and the Neurobiology of the Somatosensory Cortex Somesthesis and the Neurobiology of the Somatosensory Cortex
Somesthesis and the Neurobiology of the Somatosensory Cortex Somesthesis and the Neurobiology of the Somatosensory Cortex
Somesthesis and the Neurobiology of the Somatosensory Cortex Somesthesis and the Neurobiology of the Somatosensory Cortex
Somesthesis and the Neurobiology of the Somatosensory Cortex Somesthesis and the Neurobiology of the Somatosensory Cortex
Somesthesis and the Neurobiology of the Somatosensory Cortex Somesthesis and the Neurobiology of the Somatosensory Cortex
Somesthesis and the Neurobiology of the Somatosensory Cortex Somesthesis and the Neurobiology of the Somatosensory Cortex
Somesthesis and the Neurobiology of the Somatosensory Cortex Somesthesis and the Neurobiology of the Somatosensory Cortex
Somesthesis and the Neurobiology of the Somatosensory Cortex Somesthesis and the Neurobiology of the Somatosensory Cortex

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