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| | somatosensory cortex (primary somesthetic area, general sensory area) |
 | | Age-related alteration of the forepaw representation in the rat primary somatosensory cortex. | | | The later part of high-frequency oscillations in human somatosensory evoked potentials is enhanced in aged subjects. | | | High-frequency oscillations in human somatosensory evoked potentials are enhanced in school children. |
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http://www.arclab.org/node_pages/1352.html
(670 words)
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| | IngentaConnect Alexithymia, somatosensory amplification and counter-dependency i... |
| | Alexithymia, somatosensory amplification and counter-dependency in patients with chronic pain | | | Recently, the constructs of alexithymia, somatosensory amplification and counter-dependency have been studied in chronic pain patients. | | | There is a vast body of research concerning the psychological characteristics of patients having chronic benign pain. |
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http://www.ingentaconnect.com/content/vsp/tpc/2004/00000016/00000001/art00006
(341 words)
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| | VAX-D Research - Dermatomal Somatosensory Evoked Potential Demonstration of Nerve Root Decompression after VAX-D Therapy |
| | Somatosensory testing, in general, assesses the electrophysiology of the pathway to the brain’s cortex as a consequence of a sensory experience such as vision, hearing, or extremity sensation. | | | Dermatomal somatosensory evoked potentials (DSSEPs) are an established and effective physiologic tool for assessing single nerve root function pre- and post- operatively (6,7,8,9,10,11) and are useful as well for monitoring potential acute nerve root injury during surgical procedures using intrapedicular fixation of the lumbosacral spine (12). | | | The use of dermatomal evoked responses during surgical procedures that use intrapedicular fixation of the lumbosacral spine. |
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http://www.vaxd.net/Naguszewski.htm
(5865 words)
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| | eMedicine - Somatosensory Evoked Potentials: General Principles : Article by Emad Soliman, MD, MSc |
| | Auditory, visual, and somatosensory stimuli are used commonly for clinical evoked-potential studies. | | | SSEPs are used for clinical diagnosis in patients with neurologic disease and for intraoperative monitoring during surgeries that place parts of the somatosensory pathways at risk. | | | The large-fiber, rapidly conducting afferent somatosensory pathways that sustain the primary cortical SSEPs to stimulation of mixed sensorimotor limb nerves travel predominantly in the dorsal columns within the spinal cord. |
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http://www.emedicine.com/neuro/topic640.htm
(6963 words)
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| | eMedicine - Somatosensory Evoked Potentials: Clinical Applications : Article by Jorge G Burneo, MD, MSPH |
| | Somatosensory evoked potentials (SEPs) are generated by stimulation of afferent peripheral nerve fibers by either physiological or electrical means. | | | For an explanation of their physiologic and anatomic basis and description of techniques, see Somatosensory Evoked Potentials: General Principles. | | | Ischemia of ascending somatosensory pathways produces a drop in amplitude or loss of waveforms, thus warning the surgeon in time to take corrective action. |
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http://www.emedicine.com/neuro/topic344.htm
(2738 words)
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| | Dendritic Growth in Somatosensory Region of Brain Cortex in Pigs Residing in a Simple or a Complex Environment |
| | Adrian (1943) reported that a major portion of the pig's somatosensory cortex receives input from the snout, which is one of the most sensitive parts of the pig's anatomy. | | | Rubbing and massaging another pig may be more stimulating the somatosensory cortex than is rooting straw. | | | Rubbing and massaging another pig may be more stimulating to the somatosensory cortex than rooting straw. |
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http://www.grandin.com/references/dissertation.html
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| | Physiological Psychology, 14. SOMATOSENSORY |
| | Outline and describe the common characteristics of the somatosensory pathways. | | | Trace the pathway for pain/temperature and describe its unique features that are different from the other somatosensory pathways. | | | Trace the pathway for pressure and describe its unique features that are different from the other somatosensory pathways. |
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http://neuro.psyc.memphis.edu/ugp/css014.html
(310 words)
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| | Postural Adaptation To Somatosensory Loss |
| | Average of 5 EMG responses to backward surface translations in a healthy adult (A), lack of response in a subject with total body somatosensory loss with hearing masked (B) and functional response in the same subject with somatosensory loss with hearing of surface perturbation available (C). | | | This subject with total somatosensory loss was able to trigger late, but functional, postural responses when hearing was available. | | | This study determined the extent to which subjects with somatosensory loss in the feet can substitute light touch of a fingertip on a stationary support to improve postural stability. |
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http://www.nichd.nih.gov/about/ncmrr/symposium/horack.htm
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| | Jitendran Muthuswamy, Ph.D., Micro-Fabricated Electrode Positioners to Study Somatosensory Deficits after Global ... |
| | The overall goal is to understand the neuronal network mechanisms along the somatosensory pathway that determine selective necrosis and subsequent behavioral disorders after an episode of global ischemia. | | | The central hypothesis is that tracking extra-cellular electrical activity from individual neurons along the somatosensory pathway in chronic animal models would provide a continuous measure of necrotic or healing mechanisms taking place at the cell level after ischemia. | | | Successful accomplishment of the proposed goals would lead to fundamental discoveries concerning long-term deficits in sensorimotor integration after global ischemic insult resulting in a more targeted therapeutic intervention. |
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http://www.whitaker.org/abstracts/apr01/muthus.html
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| | Three inferior prefrontal regions of the brain found receptive to somatosensory stimuli |
| | Each subject performed one attend somatosensory/passive fixation and one attend visual/ignore somatosensory condition at each of the two stimulation sites. | | | In both conditions subjects viewed a fixation point and received somatosensory stimulation. | | | During each stimulation event, the subject performed under one of two attentional conditions: count the number of pauses in the tactile stimulation and to passively fixate on the central fixation point; and count the number of times the luminance of the central fixation point dimmed and to ignore the somatosensory stimulus. |
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http://www.eurekalert.org/pub_releases/2002-11/aps-tip111902.php
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| | Somatosensory Research |
| | In the somatosensory laboratories at ISR, physiological, anatomical, neurochemical, behavioral, and computational approaches are used to understand basic science aspects of tactile, thermal and pain perceptions. | | | It is the working philosophy of those associated with the laboratory that through basic research, the enhancement of somatosensory experiences can lead to improved living situations. | | | Research and development also addresses issues such as defining "pleasurable" sensations and comfort as they relate to personal care products for the skin. |
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http://www.ben-neu.syr.edu/somato.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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| | Basic Somatosensory Pathway |
| | 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 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 thalamocortical afferents (from thalamus to cortex) travel up through the internal capsule to get to primary somatosensory cortex, the end of the pathway. |
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http://thalamus.wustl.edu/course/bassens.html
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| | A Taylor & Francis Journal: Somatosensory & Motor Research |
| | Comprising anatomical, physiological, biochemical, pharmacological, behavioral, and psychophysical studies, Somatosensory and Motor Research covers all facets of the peripheral and central processes underlying cutaneous sensation, and includes studies relating to afferent and efferent mechanisms of deep structures (e.g., viscera, muscle). | | | Experimental and descriptive studies in all animals, including humans, are emphasized; clinical case reports and neuropathological findings are encouraged when they are of general interest in elucidating somatosensory and motor mechanisms. | | | Studies of motor systems at all levels of the neuraxis are covered, but reports restricted to non-neural aspects of muscle generally would belong in other journals. |
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http://www.tandf.co.uk/journals/titles/08990220.html
(325 words)
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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. | | | A variety of sensory receptors mediate transduction of peripheral stimuli, including touch, pain, temperature and body position. | | | The spinothalamic pathway carries information about pain and temperature through the spinothalamic tract (located ventrally). |
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http://www.neurosci.pharm.utoledo.edu/MBC4420/sensory.htm
(1699 words)
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| | OCTH 455; Thoughts: somatosensory |
| | 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). | | | (Secondary Somatosensory cortex; You pinpoint the source of the sensation using touch maps and pain maps of the body, but not information from other sensory systems. | | | It's part of the pain pathways; anterolateral system) from foot to spinal cord to thalamus (spinothalamic tract). |
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http://www.kumc.edu/SAH/OTEd/OCTH455_PTRS850/LectureNotes/somatoThoughts.html
(787 words)
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| | Somatosensory system - Wikipedia, the free encyclopedia |
| | 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). | | | Organic senses have to do with sensory information from the organs, such as stomach aches. | | | The somatosensory system is the sensory system of somatic sensation. |
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http://en.wikipedia.org/wiki/Somatic_sensation
(192 words)
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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 | | | Nociceptors- free nerve endings respond to noxious stimuli, tears, excessive stress or other extreme mechanical disturbance, produce sensation of pain, distributed throughout joints and muscles, convey information via spinothalamic pathway |
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http://soma.npa.uiuc.edu/courses/bio303/Ch14.html
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| | somatosensory: Definition and Much More From Answers.com |
| | Of or relating to the perception of sensory stimuli from the skin and internal organs: the somatosensory area of the cerebral cortex. | | | Of or relating to the perception of sensory stimuli from the skin and internal organs. |
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http://www.answers.com/topic/somatosensory
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| | Cross-modal Circuitry Between Auditory and Somatosensory Areas of the Cat Anterior Ectosylvian Sulcal Cortex: A 'New' ... |
| | All of the neurons depicted were examined for but failed to show orthodromic responses to FAES stimulation. | | | All of these neurons were responsive to somatosensory | | | (C) Data for the population of SIV neurons tested in this same manner, where the y-axis represents the responses to the combined somatosensory + FAES stimulation, while the x-axis represents the response to the somatosensory stimulus alone. |
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http://cercor.oxfordjournals.org/cgi/content/full/14/4/387?ijkey=8i.uLSZhFrQeg&keytype=ref&siteid=cercor
(8880 words)
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| | Emotion |
| | Subjects in his studies who, because of injuries sustained to the prefrontal and somatosensory cortices of the brain, had a diminished capacity to experience emotion, were severely hindered in their ability to make intelligent practical decisions. | | | In these ways, then, emotions would be all important to rationality even if they could not themselves be deemed rational or irrational. | | | Antonio Damasio (1994) has amassed an impressive body of neurological evidence suggesting that emotions do, indeed, have this sort of function in everyday reasoning. |
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http://plato.stanford.edu/entries/emotion
(12581 words)
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| | UNC BME -- Faculty (Mark A. Tommerdahl) |
| | The primary goal is to use these different methodologies to study the response of the somatosensory cortex to tactile stimulation and more specifically, it is to analyze the contributions of the effects of prior stimulation (or the cortical history) on the responsivity of the cortex. | | | Whitsel, B.L. Favorov, O.V., Tommerdahl, M., Diamond, M.E., Juliano, S.J. and Kelly, D.G. Dynamic Processes Governing the Somatosensory Cortical Response to Natural Stimulation. | | | Whitsel, B.L., Favorov, O., Kelly, D.G. and Tommerdahl, M. Mechanisms of dynamic peri- and intracolumnar interactions in somatosensory cortex: stimulus specific contrast enhancement by NMDA receptor activation. |
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http://www.bme.unc.edu/directory/faculty/tommerdahl.html
(414 words)
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| | Edward Taub |
| | Some aspects of Dr. Taub's somatosensory deafferentation research with monkeys have given rise to the formulation of a new approach to the physical rehabilitation of patients following damage to the central nervous system from such causes as stroke and spinal cord injury. | | | This approach is based on the premise that some of the long-enduring motor impairment following central nervous system damage is due to a combination of motivational and learning factors resulting in a "learned non-use" rather than being the result of the CNS damage per se. |
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http://www.uab.edu/neurotp/textonly/taub.htm
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| | APStracts 2:0243N, 1995. |
| | We also found evidence of an effect of limb position on somatosensory saccades: when human subjects performed the task with crossed hands, the incidence of curved saccades increased. | | | Somatosensory saccades were less accurate than visual saccades in both humans and monkeys. | | | The reaction times of somatosensory saccades were longer than the reaction times of visual saccades, and they decreased as a function of saccade amplitude. |
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http://www.uth.tmc.edu/apstracts/1995/jn/August/243n.html
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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. | | | The pain and temperature system, although it does ascend to somatosensory cortex, also has multiple targets in the brainstem and other areas. | | | There are three different categories (modalities) of the somatosensory system. |
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http://thalamus.wustl.edu/course/body.html
(1697 words)
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| | Systematics of the Evoked Somatosensory Cortical Potential |
| | Psychophysical studies were also carried out which complemented the evoked potential studies, and comparisons were made between the neurological and psychological data. | | | This paper presents the results of a series of experimental studies in which a digital computer averaging technique was used to explore the dynamics of the electric response of the human somatosensory cortex evoked by pulse electrical stimulation of nerves in the wrist. | | | A nomenclature is presented for the typical components of the complex waveform which the authors consider to be representative of the evoked potential. |
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http://domino.research.ibm.com/tchjr/journalindex.nsf/0/30e00c8c9df8600e85256bfa00683e2a?OpenDocument
(105 words)
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| | Somatosensory basis of speech production : Nature |
| | Hence, any adaptation observed under these conditions may have been a consequence of acoustic change. | | | This demonstration involves a dissociation of somatosensory and auditory feedback during speech production. | | | Over time, subjects correct for the effects of a complex mechanical load that alters jaw movements (and hence somatosensory feedback), but which has no measurable or perceptible effect on acoustic output. |
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http://www.nature.com/doifinder/10.1038/nature01710
(245 words)
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| | MIT OpenCourseWare Brain and Cognitive Sciences 9.373 Somatosensory and Motor Systems, Spring 2002 Home |
| | Your use of the MIT OpenCourseWare site and course materials is subject to the conditions and terms of use in our Legal Notices section. | | | Pyramidal neurons in the motor cortex of a mammal, using the golgi cox technique to visualize the cell bodies and dendrites. | | | » MIT OpenCourseWare » Brain and Cognitive Sciences » Somatosensory and Motor Systems, Spring 2002 |
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http://ocw.mit.edu/OcwWeb/Brain-and-Cognitive-Sciences/9-373Somatosensory-and-Motor-SystemsSpring2002/CourseHome
(151 words)
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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
(158 words)
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| | News - Electromyographic Activation and Somatosensory-Evoked Potentials Helpful for Predicting Neurologic Injury During ... |
| | Combined monitoring of intraoperative electromyographic (EMG) activation and somatosensory-evoked potentials (SSEPs) appears to be helpful for predicting and possibly preventing neurologic injury during thoracolumbar spine surgery, new research suggests. | | | A DGReview of :"Real-time continuous intraoperative electromyographic and somatosensory evoked potential recordings in spinal surgery: correlation of clinical and electrophysiologic findings in a prospective, consecutive series of 213 cases" | | | "Real-time continuous intraoperative electromyographic and somatosensory evoked potential recordings in spinal surgery: correlation of clinical and electrophysiologic findings in a prospective, consecutive series of 213 cases" |
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http://www.docguide.com/news/content.nsf/news/8525697700573E1885256E550040B201
(472 words)
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| | Web Activity |
| | As you can see from the online lesson, the somatosensory pathway systems are detailed and complex. | | | Web Activity: Another look at the Somatosensory Pathways | | | Please open the links below for a more in-depth, detailed description of the somatosensory pathways. |
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http://jan.ucc.nau.edu/~wml2/csd405_lamb/class/afferent/somato/web3-1-1.html
(117 words)
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| | Somatotopy in Human Primary Motor and Somatosensory Hand Representations Revisited -- Hlustík et al. 11 (4): 312 ... |
| | Juliano SL, Hand PJ, Whitsel BL (1981) Patterns of increased metabolic activity in somatosensory cortex of monkeys Macaca fascicularis, subjected to controlled cutaneous stimulation: a 2-deoxyglucose study. | | | Gelnar PA, Krauss BR, Szeverenyi NM, Apkarian AV (1998) Fingertip representation in the human somatosensory cortex: an fMRI study. | | | Geyer S, Schleicher A, Zilles K (1999) Areas 3a, 3b, and 1 of human primary somatosensory cortex. |
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http://cercor.oxfordjournals.org/cgi/content/full/11/4/312
(6370 words)
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| | A Z Psychiatry |
| | (g) unusual perceptual experiences including somatosensory (bodily) or other illusions, depersonalization or derealization; |
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http://www.azpsychiatry.info/icd/personality/schizotypal.htm
(310 words)
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| | How long before superintelligence? |
| | In one study, sensitivity to visual features was developed in the auditory cortex of neonatal ferrets, after that region's normal auditory input channel had been replaced by visual projections (Sur et al. | | | Similarly, it has been shown that the visual cortex can take over functions normally performed by the somatosensory cortex (Schlaggar and O'Leary 1991). | | | Schlaggar, B. and O'Leary, D. "Potential of visual cortex to develop an array of functional units unique to somatosensory cortex". |
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http://www.nickbostrom.com/superintelligence.html
(6953 words)
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| | The Georgiana Institute Web Page - text only page |
| | The somatosensory cortex of monkeys has been mapped and it has been determined that each finger on the monkey's hand has a specific area in the brain which receives sensory input from it. | | | It has been found that cortical areas of the brain which receive sensory input expand and areas which are deprived of input shrink. | | | If one finger is removed, the cortical areas allocated to the adjoining fingers will invade the cortical area which belongs to the missing finger. |
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http://www.georgianainstitute.org/text.htm
(7441 words)
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