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| | Somatosensory system - Wikipedia, the free encyclopedia |
 | | The sense of touch is mediated by the somatosensory system. | | | Touch may simply be considered one of five human senses; however, when a person touches something or somebody this gives rise to various feelings: the perception of pressure (hence shape, softness, texture, vibration, etc.), relative temperature and sometimes pain. | | | Somatic sensation consists of the various sensory receptors that trigger the experiences labelled as touch or pressure, temperature (warm or cold), pain (including itch and tickle), and the sensations of muscle movement and joint position including posture, movement, and facial expression (collectively also called proprioception). |
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http://en.wikipedia.org/wiki/Somatosensory_system
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| | Stage 5: Telesensory |
| | And it is clearly possible, because somatosensory animals already have already evolved the mechanism of embryological development to serve as their biological behavior guidance system, and they have already evolved neurons for transmitting and regulating the signals from sensory input that caused behavioral output. | | | These systems of neurons had to be organized as parts of centralized nervous system in order to use telesensory input to guide locomotion (and to select the appropriate kind of behavior as an animal behavior guidance system). | | | Since telesensory nervous systems must already be able to generate more or less complex instinctive behavioral routines in relation to objects in space in order to generate the various kinds of behavior needed to control relevant conditions, only relatively modest modifications of their neurological mechanisms are needed to represent the locations of unperceived objects. |
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http://www.twow.net/ObjText/OtkCbGeRRS05.htm
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| | The Story Behind The Data |
| | Response of somatosensory cerebral neurons to stimulation of dorsal and dorsolateral spinal funiculi. | | | Towe, A. Neuronal population behavior in the somatosensory systems. | | | Work elsewhere in the nervous system with microelectrodes suggested that this technique would be useful in determining the behavior of single neurons in the cerebral cortex. |
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http://oto.wustl.edu/bbears/arnie/cctxstry.htm
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| | [No title] |
| | In the somatosensory system, ganglion cells sensitive to mechnical stimulation such as vibration or muscle stretch send their axons all the way to the medulla before they synapse. | | | Outputs of the primary somatosensory area to other cortical areas is divided into two broad pathways That information that is sent to areas of the neighboring posterior parietal cortex eventually provides the motor cortex with a good idea of what is happening in the skin and muscles. |
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http://mind-brain.com/tins/media/IIntro_to_Sensory_Systems.doc
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| | Cortically induced thalamic plasticity in the primate somatosensory system - Nature Neuroscience |
| | The influence of cortical feedback on receptive field organization in the thalamus was assessed in the primate somatosensory system. | | | Although the connectivity of the system suggests a substantial influence from cortex over the processing of somatosensory information at the level of the thalamus, there has been no definitive demonstration of a major cortical influence on receptive field size, response properties or somatotopic organization in VP. | | | In addition, this result has important implications for studies of adult neuronal plasticity because it indicates that changes in 'higher-order' areas of the brain can trigger extensive changes in the receptive field characteristics of neurons located earlier in the processing pathway. |
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http://www.nature.com/neuro/journal/v1/n3/full/nn0798_226.html
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| | Basic Somatosensory Pathway |
| | The system that is carried in the spinal cord includes the entire body from the neck down; face information is carried by cranial nerves, and we will come back to it later. | | | The somatosensory system includes multiple types of sensation from the body - light touch, pain, pressure, temperature, and joint and muscle position sense (also called proprioception). | | | The pain system crosses low - in the spinal cord. |
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http://thalamus.wustl.edu/course/bassens.html
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| | Running head: PHASE RELATIONSHIPS IN BARREL CORTEX |
| | The vibrissal system of the rat is an interesting system to explore. | | | The second examines how research and theory in the vibrissal system has paralleled the progress of research and theory in the visual system. | | | Other neurophysiological studies of the rat vibrissal system have also produced evidence alternative to the labeled line view implied by a traditional structure-function interpretation. |
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http://www.arches.uga.edu/~anackley/thesis2.htm
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| | Vanderbilt Kennedy Center for Research on Human Development |
| | The somatosensory system, the sensation of the body and its movements, is not one sense but many. | | | Related studies of adult plasticity in primates will determine the effects on sensory representations of partial deprivations as a result of cortical lesions, nerve damage, or spinal cord lesions. | | | We can distinguish the shape of an object (discriminative touch), deep pressure, cold, warmth, pain, and the position and movement of joints. |
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http://kc.vanderbilt.edu/kennedy/research/topics/somatosensory.html
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| | OCTH 455; Thoughts: somatosensory |
| | It's part of the pain pathways; anterolateral system) from foot to spinal cord to thalamus (spinothalamic tract). | | | Thalamus to primary, then secondary somatosensory cortex (sensation is noticed, identified as an itch, and localized to the foot - all without involving another sensory system). | | | Output = Still without involving another sensory system (that is, you don't look), you make a motor plan, reaching down to scratch your foot using the fingers of your hand (corticospinal pathway; cortex to thalamus to spinal cord to fingers). |
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http://www.kumc.edu/SAH/OTEd/OCTH455_PTRS850/LectureNotes/somatoThoughts.html
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| | SOMATOSENSORY SYSTEM |
| | Because it codes so many different kinds of stimuli, the somatosensory sense is really a combination of several different sensory qualities or kinds of sensory experiences, including, among others, light touch, vibration, pressure, hair movement, joint position, warmth, cooling, and at least two different types of pain. | | | Each kind of receptor is part of its own kind of sensory (afferent) neuron, which in turn connect to its own kinds of neurons in the somatosensory (~touch) system in the brain. | | | Sensory fibers connect to many other parts of the brain and spinal cord, but these areas appear to be less important for touch perception. |
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http://www.indiana.edu/~p1013447/dictionary/somato~1.htm
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| | Sensory Evoked Potentials, Somatosensory, Visual, and Auditory Evoked Potentials, 211 |
| | In the absence of cranial vault lesion or intracranial hemorrhage suggesting damage to the somatosensory system, assessment can be more reliably made during a neurologic exam once the patient is awake. | | | AEP is the only reliable way to assess the auditory system in neonates and young infants at high risk for hearing loss. | | | to assess any decline which may warrant emergent surgery in unconscious spinal cord injury patients who show specific structural damage to the somatosensory system, and who are candidates for emergency spinal cord surgery |
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http://www.bluecrossma.com/common/en_US/medical_policies/211.htm
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| | quiz3.2001a |
| | A major difference between the physiologic function of the somatosensory system and the pain system is | | | The pain system responds much more rapidly than the somatosensory system. | | | The existence of a localized area of primary cortex devoted to somatosensory system but not to pain. |
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http://socrates.berkeley.edu/~alanburr/neurobio/Neuroexams/quiz3.2001a.html
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| | ProjectsFrameSet |
| | Why is this interesting: What are the natural stimuli the visual system has evolved to process. | | | This will allow performing experiments on the model that are similar to the in vivo physiological studies. | | | Furthermore, it can be employed to generate more natural stimuli to be used in the physiological experiments. |
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http://www.ini.unizh.ch/~peterk/ProjectList.html
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| | Publications at the Graybiel Lab |
| | Graybiel, A.M. (1975) Anatomical pathways in the brain stem oculomotor system. | | | Graybiel, A.M. and Berson, D.M. (1981) On the relation between trans-thalamic and transcortical pathways in the visual system. | | | Chesselet, M.-F. and Graybiel, A.M. (1986) Striatal neurons expressing somatostatin-like immunoreactivity: Evidence for a peptidergic interneuronal system in the cat. |
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http://web.mit.edu/bcs/graybiel-lab/pub.html
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| | Somatosensory and Brainstem Auditory Evoked Potentials in the Gunn Rat Model of Acute Bilirubin Neurotoxicity -- ... |
| | Somatosensory and Brainstem Auditory Evoked Potentials in the Gunn Rat Model of Acute Bilirubin Neurotoxicity -- SHAPIRO 52 (6): 844 -- Pediatric Research | | | Desmedt JE, Cheron G 1983 Spinal and far-field components of human somatosensory evoked potentials to posterior tibial nerve stimulation analyzed with oesophageal derivations and non-cephalic reference recording. | | | George SR, Taylor MJ 1991 Somatosensory evoked potentials in neonates and infants: developmental and normative data. |
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http://www.pedresearch.org/cgi/content/full/52/6/844
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| | Somatosensory systems |
| | Nociceptors mediate the sensation of painful stimuli, but the perception of pain at the level of the cerebral cortex depends upon more than just the activation of nociceptors. | | | Activation of both systems results in less pain information reaching the brain. | | | For example, rapidly adapting sensory responses are segregated from slowly adapting responses in a columnar arrangement. |
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http://www.neurosci.pharm.utoledo.edu/MBC4420/sensory.htm
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| | Lecture 20 |
| | Somatosensory system provides information about more than one modality, several kinds of receptors providing information mediating varied skin sensations including touch, hot, cold, and pain | | | Corresponding functional differences, lemniscal pathway deals with information that may require quick action, information from skin mechanoreceptors and proprioceptors, spinothalamic information less urgent, such as heat, cold, and some kinds of pain | | | Input from body surface, muscles, and joints not sent to single associative center in brain, mostly processed in ganglion that controls that body segment, somatoreceptors form topographic representation of leg in ganglion |
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http://soma.npa.uiuc.edu/courses/bio303/Ch14.html
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| | Publications |
| | Alloway KD, Wallace MB, Johnson MJ (1994) Cross-correlation analysis of cuneothalamic interactions in the rat somatosensory system: Influence of receptive field topography and comparisons with thalamocortical interactions. | | | Johnson MJ, Alloway KD (1996) Cross-correlation analysis reveals laminar differences in thalamocortical interactions in the somatosensory system. | | | Rebec GV, Centore JM, White LW, Alloway KD (1985) Ascorbic acid and the behavioral response to haloperidol: Implications for the action of antipsychotic drugs. |
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http://www.hmc.psu.edu/neuralcircuits/publicat.htm
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| | Somatosensory pathways - Body |
| | Some proprioception also travels in the dorsal columns, and follows the medial lemniscus all the way to the cortex, so there is conscious awareness of body position and movement. | | | Instead, it uses free nerve endings throughout skin, muscle, bone, and connective tissue to perceive changes in temperature and pain peptides. | | | The proprioceptive system arises from primarily the A |
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http://thalamus.wustl.edu/course/body.html
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| | USATODAY.com - Study: Walking on cobblestones is healthy |
| | The body relies on two complex methods to maintain balance — the vestibular system in the inner ear and the somatosensory system that connects skin and muscles, Horak said. | | | Normally, people depend on the somatosensory system for about 70% of their balance control, and 30% on the inner ear. | | | But when the surface is uneven or unstable, the body switches reliance to the vestibular system and relies on it for about 70% of balance control, Horak said. |
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http://www.usatoday.com/news/health/2005-07-12-cobblestones_x.htm
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| | [No title] |
| | ---------PAIN--------- Two systems that mainly deal PAIN: Dorsal column medial Lemiscus system and the Anterolateral system DORSAL COLUMN MEDIAL LEMNISCUS SYSTEM- carries information from mechanoreceptors that mediate tactile discrimination and proreception. | | | Peripheral nerve: innervates a particular piece of skin the fibers project via numerous dorsal roots. | | | How the periphery projects into the spinal cord (central nervous system)!! |
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http://www.uhmc.sunysb.edu/som/students/2003/Lectures/neu18.doc
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| | Table of contents for Library of Congress control number 2001003827 |
| | Table of contents for The somatosensory system : deciphering the brain's own body image / edited by Randall J. Nelson. | | | Johnson and Takashi Yoshioka Chapter 4 Feeling Surfaces and Objects Remotely.................................................103 Susan J. Lederman and Roberta L. Klatzky Chapter 5 Somatosensory and Proprioceptive Contributions to Body Orientation, Sensory Localization, and Self-Calibration......................................................... | | | Library of Congress subject headings for this publication: Somesthesia, Body schema, Somatosensory Cortex physiology, Body Image, Models, Neurological, Perception |
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http://www.loc.gov/catdir/toc/fy031/2001003827.html
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| | [No title] |
| | There is tremendous growth in research because the pain system is recognized as having specialized anatomy, physiology, and chemistry/pharmacology, which means there are many potential targets for therapeutic intervention. | | | Pain I We will talk about pain pathways and then pathological pain. | | | We know that pain has to do with the smallest fibers in peripheral nerves. |
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http://www.uhmc.sunysb.edu/som/students/2003/Lectures/neu19.doc
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| | Ashton Graybiel Spatial Orientation Laboratory |
| | Lackner JR, DiZio P. Adaptation to Coriolis force perturbation of movement trajectory: Role of proprioceptive and cutaneous somatosensory feedback. | | | Lackner, J.R. and DiZio, P. Some efferent and somatosensory influences on body orientation and oculomotor control. | | | The structure of somatosensory information for human postural control. |
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http://www.graybiel.brandeis.edu/publications/publications.html
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| | 9.10/9.100 Review Questions: Somatosensory System |
| | How is somatosensory information organized in the spinal cord? | | | How are these sensations transmitted from the skin to the brain? | | | What effect does nerve damage or amputation have on the somatosensory system? |
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http://web.mit.edu/9.10/www/RQ_Somatosensory.htm
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| | Studies_of_the_primate_somatosensory_system |
| | Our work examines the contribution of the somatosensory system to the generation of these behaviors. | | | The somatosensory system must also provide the motor cortex with feedback regarding changes in the position of the digits of the hand and stimulation patterns across the hand. | | | Finally, for characteristics such as perception and cognition, the somatosensory system must provide information to areas of the cortex involved in attention, future planning, and non-stimulus bound task performance. |
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http://psychology.ucdavis.edu/labs/Krubitzer/Studies_of_the_primate_somatosensory_system.html
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| | Conference Materials |
| | As previously observed in the auditory system, experimental and perceptual results indicate a critical intrapair interval of approximately 12 msec. | | | As in the auditory system, these results obtained from the somatosensory system indicate that gamma-band oscillatory activity is a neurophysiological correlate of early temporal processing, suggesting that the CNS employs a central gamma-band timing mechanism for cognitive binding. | | | Human Gamma-Band Brain Activity Covaries with Cognitive Temporal Binding of Somatosensory Stimuli. |
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http://cognet.mit.edu/library/conferences/paper?paper_id=4363
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| | Journal of Cognitive Neuroscience - Coding of Spatial Information in the Somatosensory System: Evidence from Patients ... |
| | To determine the reference frame within which neglect operates in the somatosensory system, 11 patients with unilateral neglect were touched simultaneously on the left and right side of the wrist of one hand. | | | These results indicate that point-localization in the somatosensory system is accomplished with respect to a spatially defined frame-of-reference and not strictly with respect to somatotopically defined coordinates. | | | The hand was tested in both the palm up and the palm down position. |
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http://mitpress.mit.edu/catalog/item?tid=4346&ttype=6
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| | Amazon.com: Cellular Mechanisms of Sensory Processing: The Somatosensory System (Nato a S I Series Series H, Cell ... |
| | This volume is a multi-disciplinary characterization of the somatosensory system - a field that has experienced revolutionary changes in recent years through the accumulation of basic and clinical data. | | | For example, the discovery of the interaction between the nervous system and the immune system has changed our view on the development of inflammatory diseases, while the cloning of genes encoding different trophic factors boosted studies revealing profound changes in the regeneration of neurones, and the induction of changes in phenotype. | | | Publisher: learn how customers can search inside this book. |
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http://www.amazon.com/exec/obidos/tg/detail/-/0387576258?v=glance
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| | somat.notes. |
| | When this region is damaged, especially on the right side, patients neglect affected limbs on the opposite side of the body. | | | Sensations from internal organs are also part of the somatosensory system. | | | This part of the somatosensory system has receptors in muscles, tendons and joints. |
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http://www.psy.fsu.edu/undergrad.prog/stephan/somat.notes.html
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| | Somatosensory |
| | WEB ACTIVITY: Another look at the Somatosensory Pathways | | | Describe the three neuron organization of the somesthetic system. | | | SPH405 : The Class : Afferent Systems : Somatosensory |
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http://jan.ucc.nau.edu/~brc/sph405/class/afferent/somato
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| | Sensory System |
| | What does this say about our sense of touch in these parts of the body? | | | Identify the different modalities of the somatosensory system. | | | Explain in general terms, what sensory systems do. |
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http://www.indiana.edu/~phys215/lecture/lecnotes/chap15x.html
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| | [No title] |
| | Unencapsulated receptors: Pain receptors: Pain receptors only respond to pain, and not to touch. | | | 2) Somatosensory system Receptors: Many different receptors; the range of information coming into the somatosensory system is much greater than in the visual system. | | | If fibers are damaged (cannot feel touch on ipsilateral side of body; can only feel temperature and pain on opposite side of body). |
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http://cogsci.ucsd.edu/~ffilimon/COGS107B/107BSection7.doc
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| | Hsiao Publications. |
| | Romo R, Ruiz S, Hsiao SS (1993) A tactile stimulator for studing motion processing in the somatic sensory system of primates. | | | Hsiao SS, Lane JW, Fitzgerald PJ (2002) Representation of Orientation in the Somatosensory System. | | | In: The Somatosensory System: Deciphering the Brain's Own Body Image (Nelson RJ, ed), pp 197-217. |
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http://mind-brain.com/hsiao/pubs.asp
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| | Sensory & Motor Neuroscience: Somatosensory System II |
| | As in the visual system, spikes of neurons in various cortical and subcortical structures in the somatosensory systems are often synchronized. | | | When attention is directed to the tactile stimulus, the response of the neurons in the somatosensory cortex is enhanced, compared to when attention is directed to visual stimuli. | | | The somatotopic map in the somatosensory cortex is plastic even in adult brains. |
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http://www.bcs.rochester.edu/~dlee/bcs245/somato2.htm
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| | touch, touching, touched, touches- WordWeb dictionary definition |
| | Part of: somaesthesia [Brit, Cdn], somaesthesis [Cdn], somataesthesis, somatesthesia, somatic sense, somatic sensory system, somatosensory system, somesthesia [N. Amer], somesthesis [N. Amer] |
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http://www.wordwebonline.com/en/TOUCH
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| | somatosensory cortex - definition of somatosensory cortex in the Medical dictionary - by the Free Online Medical ... |
| | This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional. | | | somatosensory cortex - definition of somatosensory cortex in the Medical dictionary - by the Free Online Medical Dictionary, Thesaurus and Encyclopedia. | | | Somatosensory Receiving Area (in parietal lobe of cortex) |
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http://medical-dictionary.thefreedictionary.com/somatosensory+cortex
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http://academic.bowdoin.edu/courses/f02/bio213/dissemination/somatosensory.ppt
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