Physiological properties of periodontal mechanosensitive neurones in the posteromedial ventral nucleus of rat thalamus
Unitary discharges of periodontal mechanosensitive (PM) neurones responding to mechanical tooth stimulation were recorded from the posteromedial ventral nucleus (VPM) of rat thalamus. PM neurones are distributed in the ventromedial area in the rostral two-thirds of the VPM nucleus. Maxillary and man...
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| Veröffentlicht in: | Archives of oral biology 2002-09, Vol.47 (9), p.689-694 |
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| creator | Tabata, T Yamaki, A Takahashi, Y Hayashi, H |
| description | Unitary discharges of periodontal mechanosensitive (PM) neurones responding to mechanical tooth stimulation were recorded from the posteromedial ventral nucleus (VPM) of rat thalamus. PM neurones are distributed in the ventromedial area in the rostral two-thirds of the VPM nucleus. Maxillary and mandibular tooth-sensitive neurones are arranged in dorsoventral sequence. Of the PM neurones, 36% were slowly adapting to pressure applied to the tooth and 67% were rapidly adapting. The majority of PM units were sensitive to the contralateral incisor tooth. Response magnitudes of the slowly adapting neurones varied with stimulus direction and were directionally selective to mechanical tooth stimulation. The optimal stimulus direction was labiolingual or linguolabial. Rapidly adapting neurones were directionally non-selective to tooth stimulation. The threshold for mechanical stimulation was |
| doi_str_mv | 10.1016/S0003-9969(02)00030-4 |
| format | Article |
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N. Mean response latencies evoked by electrical stimulation of the peripheral receptive fields were 4.6
ms in the slowly adapting neurones and 5.8
ms in the rapidly adapting neurones.</description><identifier>ISSN: 0003-9969</identifier><identifier>EISSN: 1879-1506</identifier><identifier>DOI: 10.1016/S0003-9969(02)00030-4</identifier><identifier>PMID: 12243972</identifier><language>eng</language><publisher>England: Elsevier Ltd</publisher><subject>Adaptation, Physiological ; Animals ; Dentistry ; Electric Stimulation ; Incisor ; Mechanoreceptors - physiology ; Mechanosensitive neurones ; Periodontal ligament ; Periodontal Ligament - physiology ; Posteromedial ventral nucleus ; Rat incisor tooth ; Rats ; Reaction Time ; Stress, Mechanical ; Thalamus ; Ventral Thalamic Nuclei - physiology</subject><ispartof>Archives of oral biology, 2002-09, Vol.47 (9), p.689-694</ispartof><rights>2002 Elsevier Science Ltd</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c361t-70a7b353ae7f4ed0feae581c27438766614d712ea2ca08c6b81c2cd53a5670863</citedby><cites>FETCH-LOGICAL-c361t-70a7b353ae7f4ed0feae581c27438766614d712ea2ca08c6b81c2cd53a5670863</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0003996902000304$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3536,27903,27904,65309</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/12243972$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Tabata, T</creatorcontrib><creatorcontrib>Yamaki, A</creatorcontrib><creatorcontrib>Takahashi, Y</creatorcontrib><creatorcontrib>Hayashi, H</creatorcontrib><title>Physiological properties of periodontal mechanosensitive neurones in the posteromedial ventral nucleus of rat thalamus</title><title>Archives of oral biology</title><addtitle>Arch Oral Biol</addtitle><description>Unitary discharges of periodontal mechanosensitive (PM) neurones responding to mechanical tooth stimulation were recorded from the posteromedial ventral nucleus (VPM) of rat thalamus. PM neurones are distributed in the ventromedial area in the rostral two-thirds of the VPM nucleus. Maxillary and mandibular tooth-sensitive neurones are arranged in dorsoventral sequence. Of the PM neurones, 36% were slowly adapting to pressure applied to the tooth and 67% were rapidly adapting. The majority of PM units were sensitive to the contralateral incisor tooth. Response magnitudes of the slowly adapting neurones varied with stimulus direction and were directionally selective to mechanical tooth stimulation. The optimal stimulus direction was labiolingual or linguolabial. Rapidly adapting neurones were directionally non-selective to tooth stimulation. The threshold for mechanical stimulation was <0.05
N. Mean response latencies evoked by electrical stimulation of the peripheral receptive fields were 4.6
ms in the slowly adapting neurones and 5.8
ms in the rapidly adapting neurones.</description><subject>Adaptation, Physiological</subject><subject>Animals</subject><subject>Dentistry</subject><subject>Electric Stimulation</subject><subject>Incisor</subject><subject>Mechanoreceptors - physiology</subject><subject>Mechanosensitive neurones</subject><subject>Periodontal ligament</subject><subject>Periodontal Ligament - physiology</subject><subject>Posteromedial ventral nucleus</subject><subject>Rat incisor tooth</subject><subject>Rats</subject><subject>Reaction Time</subject><subject>Stress, Mechanical</subject><subject>Thalamus</subject><subject>Ventral Thalamic Nuclei - physiology</subject><issn>0003-9969</issn><issn>1879-1506</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2002</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFkE1LxDAQhoMo7vrxE5SeRA_VJG2T9iSy-AULCuo5ZNOpG2mTNUkL--9Ndxc9epoZ5nlneF-Ezgi-JpiwmzeMcZZWFasuMb0aB5zme2hKSl6lpMBsH01_kQk68v4rjgVj5BBNCKV5VnE6RcPrcu21be2nVrJNVs6uwAUNPrFNEltta2tC3HSgltJYD8broAdIDPTOmghqk4QlJCvrAzjbQa0jPoAJLlbTqxb6zTUnQwRlK7ven6CDRrYeTnf1GH083L_PntL5y-Pz7G6eqoyRkHIs-SIrMgm8yaHGDUgoSqIoz7OSs2gmrzmhIKmSuFRsMe5UHQUF47hk2TG62N6Nxr578EF02itoW2nA9l5wSgjmpIxgsQWVs947aMTK6U66tSBYjIGLTeBiTFNgKjaBizzqzncP-kW0_qfaJRyB2y0A0eagwQmvNBgVY3Kggqit_ufFD1xkkws</recordid><startdate>20020901</startdate><enddate>20020901</enddate><creator>Tabata, T</creator><creator>Yamaki, A</creator><creator>Takahashi, Y</creator><creator>Hayashi, H</creator><general>Elsevier Ltd</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>20020901</creationdate><title>Physiological properties of periodontal mechanosensitive neurones in the posteromedial ventral nucleus of rat thalamus</title><author>Tabata, T ; Yamaki, A ; Takahashi, Y ; Hayashi, H</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c361t-70a7b353ae7f4ed0feae581c27438766614d712ea2ca08c6b81c2cd53a5670863</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2002</creationdate><topic>Adaptation, Physiological</topic><topic>Animals</topic><topic>Dentistry</topic><topic>Electric Stimulation</topic><topic>Incisor</topic><topic>Mechanoreceptors - physiology</topic><topic>Mechanosensitive neurones</topic><topic>Periodontal ligament</topic><topic>Periodontal Ligament - physiology</topic><topic>Posteromedial ventral nucleus</topic><topic>Rat incisor tooth</topic><topic>Rats</topic><topic>Reaction Time</topic><topic>Stress, Mechanical</topic><topic>Thalamus</topic><topic>Ventral Thalamic Nuclei - physiology</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Tabata, T</creatorcontrib><creatorcontrib>Yamaki, A</creatorcontrib><creatorcontrib>Takahashi, Y</creatorcontrib><creatorcontrib>Hayashi, H</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Archives of oral biology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Tabata, T</au><au>Yamaki, A</au><au>Takahashi, Y</au><au>Hayashi, H</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Physiological properties of periodontal mechanosensitive neurones in the posteromedial ventral nucleus of rat thalamus</atitle><jtitle>Archives of oral biology</jtitle><addtitle>Arch Oral Biol</addtitle><date>2002-09-01</date><risdate>2002</risdate><volume>47</volume><issue>9</issue><spage>689</spage><epage>694</epage><pages>689-694</pages><issn>0003-9969</issn><eissn>1879-1506</eissn><abstract>Unitary discharges of periodontal mechanosensitive (PM) neurones responding to mechanical tooth stimulation were recorded from the posteromedial ventral nucleus (VPM) of rat thalamus. PM neurones are distributed in the ventromedial area in the rostral two-thirds of the VPM nucleus. Maxillary and mandibular tooth-sensitive neurones are arranged in dorsoventral sequence. Of the PM neurones, 36% were slowly adapting to pressure applied to the tooth and 67% were rapidly adapting. The majority of PM units were sensitive to the contralateral incisor tooth. Response magnitudes of the slowly adapting neurones varied with stimulus direction and were directionally selective to mechanical tooth stimulation. The optimal stimulus direction was labiolingual or linguolabial. Rapidly adapting neurones were directionally non-selective to tooth stimulation. The threshold for mechanical stimulation was <0.05
N. Mean response latencies evoked by electrical stimulation of the peripheral receptive fields were 4.6
ms in the slowly adapting neurones and 5.8
ms in the rapidly adapting neurones.</abstract><cop>England</cop><pub>Elsevier Ltd</pub><pmid>12243972</pmid><doi>10.1016/S0003-9969(02)00030-4</doi><tpages>6</tpages></addata></record> |
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| ispartof | Archives of oral biology, 2002-09, Vol.47 (9), p.689-694 |
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| language | eng |
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| source | MEDLINE; Elsevier ScienceDirect Journals |
| subjects | Adaptation, Physiological Animals Dentistry Electric Stimulation Incisor Mechanoreceptors - physiology Mechanosensitive neurones Periodontal ligament Periodontal Ligament - physiology Posteromedial ventral nucleus Rat incisor tooth Rats Reaction Time Stress, Mechanical Thalamus Ventral Thalamic Nuclei - physiology |
| title | Physiological properties of periodontal mechanosensitive neurones in the posteromedial ventral nucleus of rat thalamus |
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