Principles of Linear and Angular Vestibuloocular Reflex Organization in the Frog
Physiologisches Institut der Ludwig-Maximilians Universität, 80336 Munich, Germany Rohregger, M. and N. Dieringer. Principles of Linear and Angular Vestibuloocular Reflex Organization in the Frog. J. Neurophysiol. 87: 385-398, 2002. We compared the spatial organization patterns of linear and angular...
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| description | Physiologisches Institut der Ludwig-Maximilians Universität,
80336 Munich, Germany
Rohregger, M. and
N. Dieringer.
Principles of Linear and Angular Vestibuloocular Reflex
Organization in the Frog. J. Neurophysiol. 87: 385-398, 2002. We compared the spatial organization
patterns of linear and angular vestibuloocular reflexes in frogs by
recording the multiunit spike activity from cranial nerve branches
innervating the lateral rectus, the inferior rectus, or the inferior
obliquus eye muscles. Responses were evoked by linear horizontal and/or
vertical accelerations on a sled or by angular accelerations about an
earth-vertical axis on a turntable. Before each sinusoidal oscillation
test in darkness, the static head position was systematically altered to determine those directions of horizontal linear acceleration and
those planes of angular head oscillation that were associated with
minimal response amplitudes. Inhibitory response components during
angular accelerations were clearly present, whereas inhibitory response
components during linear accelerations were absent. Likewise was no
contribution from the vertical otolith organs (i.e., lagena and
saccule) observed during vertical linear acceleration. Horizontal linear acceleration evoked responses that originated from eye muscle-specific sectors on the contralateral utricular macula. The
sectors of the inferior obliquus and lateral rectus muscles on the
utricle had an opening angle of 45 and 60°, respectively and
overlapped to a large extent in the laterorostral part of the utricle.
Both sectors were coplanar with the horizontal semicircular canals. The
sector of the inferior rectus muscle was narrow (opening 5°),
laterocaudally oriented, and slightly pitched up by 6°. Angular acceleration evoked maximal responses in the inferior obliquus muscle
nerve that originated from the ipsilateral horizontal and the
contralateral anterior vertical canals in a ratio of 50:50. Lateral
rectus excitation originated from the contralateral horizontal and
anterior vertical semicircular canals in a ratio of 80:20. The
excitatory responses of the inferior rectus muscle nerve originated exclusively from the contralateral posterior vertical canal. Measured data and known semicircular canal plane vectors were used to calculate the spatial orientation of maximum sensitivity vectors for the investigated eye muscle nerves in semicircular canal coordinates. Comparison of the directions of maximal sensitivity vectors of responses evok |
| doi_str_mv | 10.1152/jn.00404.2001 |
| format | Article |
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80336 Munich, Germany
Rohregger, M. and
N. Dieringer.
Principles of Linear and Angular Vestibuloocular Reflex
Organization in the Frog. J. Neurophysiol. 87: 385-398, 2002. We compared the spatial organization
patterns of linear and angular vestibuloocular reflexes in frogs by
recording the multiunit spike activity from cranial nerve branches
innervating the lateral rectus, the inferior rectus, or the inferior
obliquus eye muscles. Responses were evoked by linear horizontal and/or
vertical accelerations on a sled or by angular accelerations about an
earth-vertical axis on a turntable. Before each sinusoidal oscillation
test in darkness, the static head position was systematically altered to determine those directions of horizontal linear acceleration and
those planes of angular head oscillation that were associated with
minimal response amplitudes. Inhibitory response components during
angular accelerations were clearly present, whereas inhibitory response
components during linear accelerations were absent. Likewise was no
contribution from the vertical otolith organs (i.e., lagena and
saccule) observed during vertical linear acceleration. Horizontal linear acceleration evoked responses that originated from eye muscle-specific sectors on the contralateral utricular macula. The
sectors of the inferior obliquus and lateral rectus muscles on the
utricle had an opening angle of 45 and 60°, respectively and
overlapped to a large extent in the laterorostral part of the utricle.
Both sectors were coplanar with the horizontal semicircular canals. The
sector of the inferior rectus muscle was narrow (opening 5°),
laterocaudally oriented, and slightly pitched up by 6°. Angular acceleration evoked maximal responses in the inferior obliquus muscle
nerve that originated from the ipsilateral horizontal and the
contralateral anterior vertical canals in a ratio of 50:50. Lateral
rectus excitation originated from the contralateral horizontal and
anterior vertical semicircular canals in a ratio of 80:20. The
excitatory responses of the inferior rectus muscle nerve originated exclusively from the contralateral posterior vertical canal. Measured data and known semicircular canal plane vectors were used to calculate the spatial orientation of maximum sensitivity vectors for the investigated eye muscle nerves in semicircular canal coordinates. Comparison of the directions of maximal sensitivity vectors of responses evoked by linear or angular accelerations in a given eye
muscle nerve showed that the two vector directions were oriented about
orthogonally with respect to each other. With this arrangement the
linear and the angular vestibuloocular reflex can support each other
dynamically whenever they are co-activated without a change in the
spatial response characteristics. The mutual adaptation of angular and
linear vestibuloocular reflexes as well as the differences in their
organization described here for frogs may represent a basic feature
common for vertebrates in general.</description><identifier>ISSN: 0022-3077</identifier><identifier>EISSN: 1522-1598</identifier><identifier>DOI: 10.1152/jn.00404.2001</identifier><identifier>PMID: 11784757</identifier><language>eng</language><publisher>United States: Am Phys Soc</publisher><subject>Acceleration ; Action Potentials - physiology ; Animals ; Cranial Nerves - physiology ; Oculomotor Muscles - innervation ; Oculomotor Muscles - physiology ; Physical Stimulation - instrumentation ; Physical Stimulation - methods ; Rana temporaria - physiology ; Reflex, Vestibulo-Ocular - physiology ; Saccule and Utricle - physiology ; Signal Processing, Computer-Assisted ; Space life sciences</subject><ispartof>Journal of neurophysiology, 2002-01, Vol.87 (1), p.385-398</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c394t-2713696b8123bc3bd3b3d3310913a2058613080d9d72b330ddf27379e02165d63</citedby><cites>FETCH-LOGICAL-c394t-2713696b8123bc3bd3b3d3310913a2058613080d9d72b330ddf27379e02165d63</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,3037,27922,27923</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/11784757$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Rohregger, M</creatorcontrib><creatorcontrib>Dieringer, N</creatorcontrib><title>Principles of Linear and Angular Vestibuloocular Reflex Organization in the Frog</title><title>Journal of neurophysiology</title><addtitle>J Neurophysiol</addtitle><description>Physiologisches Institut der Ludwig-Maximilians Universität,
80336 Munich, Germany
Rohregger, M. and
N. Dieringer.
Principles of Linear and Angular Vestibuloocular Reflex
Organization in the Frog. J. Neurophysiol. 87: 385-398, 2002. We compared the spatial organization
patterns of linear and angular vestibuloocular reflexes in frogs by
recording the multiunit spike activity from cranial nerve branches
innervating the lateral rectus, the inferior rectus, or the inferior
obliquus eye muscles. Responses were evoked by linear horizontal and/or
vertical accelerations on a sled or by angular accelerations about an
earth-vertical axis on a turntable. Before each sinusoidal oscillation
test in darkness, the static head position was systematically altered to determine those directions of horizontal linear acceleration and
those planes of angular head oscillation that were associated with
minimal response amplitudes. Inhibitory response components during
angular accelerations were clearly present, whereas inhibitory response
components during linear accelerations were absent. Likewise was no
contribution from the vertical otolith organs (i.e., lagena and
saccule) observed during vertical linear acceleration. Horizontal linear acceleration evoked responses that originated from eye muscle-specific sectors on the contralateral utricular macula. The
sectors of the inferior obliquus and lateral rectus muscles on the
utricle had an opening angle of 45 and 60°, respectively and
overlapped to a large extent in the laterorostral part of the utricle.
Both sectors were coplanar with the horizontal semicircular canals. The
sector of the inferior rectus muscle was narrow (opening 5°),
laterocaudally oriented, and slightly pitched up by 6°. Angular acceleration evoked maximal responses in the inferior obliquus muscle
nerve that originated from the ipsilateral horizontal and the
contralateral anterior vertical canals in a ratio of 50:50. Lateral
rectus excitation originated from the contralateral horizontal and
anterior vertical semicircular canals in a ratio of 80:20. The
excitatory responses of the inferior rectus muscle nerve originated exclusively from the contralateral posterior vertical canal. Measured data and known semicircular canal plane vectors were used to calculate the spatial orientation of maximum sensitivity vectors for the investigated eye muscle nerves in semicircular canal coordinates. Comparison of the directions of maximal sensitivity vectors of responses evoked by linear or angular accelerations in a given eye
muscle nerve showed that the two vector directions were oriented about
orthogonally with respect to each other. With this arrangement the
linear and the angular vestibuloocular reflex can support each other
dynamically whenever they are co-activated without a change in the
spatial response characteristics. The mutual adaptation of angular and
linear vestibuloocular reflexes as well as the differences in their
organization described here for frogs may represent a basic feature
common for vertebrates in general.</description><subject>Acceleration</subject><subject>Action Potentials - physiology</subject><subject>Animals</subject><subject>Cranial Nerves - physiology</subject><subject>Oculomotor Muscles - innervation</subject><subject>Oculomotor Muscles - physiology</subject><subject>Physical Stimulation - instrumentation</subject><subject>Physical Stimulation - methods</subject><subject>Rana temporaria - physiology</subject><subject>Reflex, Vestibulo-Ocular - physiology</subject><subject>Saccule and Utricle - physiology</subject><subject>Signal Processing, Computer-Assisted</subject><subject>Space life sciences</subject><issn>0022-3077</issn><issn>1522-1598</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2002</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFkEFr3DAQhUVpaDZpj70Wn3rzdqSxLPkYQrcJLCSEtFdhW7JXi1ZyJZtk--vjzW7JpdDTvBm-eTweIZ8pLCnl7NvWLwEKKJYMgL4ji_nGcsor-Z4sAGaNIMQ5uUhpCwCCA_tAzikVshBcLMj9fbS-tYMzKQtdtrbe1DGrvc6ufD-5Wf8yabTN5EJoX_cH0znznN3Fvvb2Tz3a4DPrs3FjslUM_Udy1tUumU-neUl-rr4_Xt_k67sft9dX67zFqhhzJiiWVdlIyrBpsdHYoEakUFGsGXBZUgQJutKCNYigdccEisoAoyXXJV6Sr0ffIYbf05xR7WxqjXO1N2FK6uAPkhf_BanEUoqKz2B-BNsYUoqmU0O0uzruFQV16FptvXrtWh26nvkvJ-Op2Rn9Rp_KnQF2BDa23zzZaNSw2ScbXOj3ajU592iex9lUCkUVSq4G3b3F_dfTHOAvjC_8yZfs</recordid><startdate>20020101</startdate><enddate>20020101</enddate><creator>Rohregger, M</creator><creator>Dieringer, N</creator><general>Am Phys Soc</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>7TK</scope><scope>F1W</scope><scope>H95</scope><scope>L.G</scope><scope>7X8</scope></search><sort><creationdate>20020101</creationdate><title>Principles of Linear and Angular Vestibuloocular Reflex Organization in the Frog</title><author>Rohregger, M ; Dieringer, N</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c394t-2713696b8123bc3bd3b3d3310913a2058613080d9d72b330ddf27379e02165d63</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2002</creationdate><topic>Acceleration</topic><topic>Action Potentials - physiology</topic><topic>Animals</topic><topic>Cranial Nerves - physiology</topic><topic>Oculomotor Muscles - innervation</topic><topic>Oculomotor Muscles - physiology</topic><topic>Physical Stimulation - instrumentation</topic><topic>Physical Stimulation - methods</topic><topic>Rana temporaria - physiology</topic><topic>Reflex, Vestibulo-Ocular - physiology</topic><topic>Saccule and Utricle - physiology</topic><topic>Signal Processing, Computer-Assisted</topic><topic>Space life sciences</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Rohregger, M</creatorcontrib><creatorcontrib>Dieringer, N</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Neurosciences Abstracts</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 1: Biological Sciences & Living Resources</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>MEDLINE - Academic</collection><jtitle>Journal of neurophysiology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Rohregger, M</au><au>Dieringer, N</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Principles of Linear and Angular Vestibuloocular Reflex Organization in the Frog</atitle><jtitle>Journal of neurophysiology</jtitle><addtitle>J Neurophysiol</addtitle><date>2002-01-01</date><risdate>2002</risdate><volume>87</volume><issue>1</issue><spage>385</spage><epage>398</epage><pages>385-398</pages><issn>0022-3077</issn><eissn>1522-1598</eissn><abstract>Physiologisches Institut der Ludwig-Maximilians Universität,
80336 Munich, Germany
Rohregger, M. and
N. Dieringer.
Principles of Linear and Angular Vestibuloocular Reflex
Organization in the Frog. J. Neurophysiol. 87: 385-398, 2002. We compared the spatial organization
patterns of linear and angular vestibuloocular reflexes in frogs by
recording the multiunit spike activity from cranial nerve branches
innervating the lateral rectus, the inferior rectus, or the inferior
obliquus eye muscles. Responses were evoked by linear horizontal and/or
vertical accelerations on a sled or by angular accelerations about an
earth-vertical axis on a turntable. Before each sinusoidal oscillation
test in darkness, the static head position was systematically altered to determine those directions of horizontal linear acceleration and
those planes of angular head oscillation that were associated with
minimal response amplitudes. Inhibitory response components during
angular accelerations were clearly present, whereas inhibitory response
components during linear accelerations were absent. Likewise was no
contribution from the vertical otolith organs (i.e., lagena and
saccule) observed during vertical linear acceleration. Horizontal linear acceleration evoked responses that originated from eye muscle-specific sectors on the contralateral utricular macula. The
sectors of the inferior obliquus and lateral rectus muscles on the
utricle had an opening angle of 45 and 60°, respectively and
overlapped to a large extent in the laterorostral part of the utricle.
Both sectors were coplanar with the horizontal semicircular canals. The
sector of the inferior rectus muscle was narrow (opening 5°),
laterocaudally oriented, and slightly pitched up by 6°. Angular acceleration evoked maximal responses in the inferior obliquus muscle
nerve that originated from the ipsilateral horizontal and the
contralateral anterior vertical canals in a ratio of 50:50. Lateral
rectus excitation originated from the contralateral horizontal and
anterior vertical semicircular canals in a ratio of 80:20. The
excitatory responses of the inferior rectus muscle nerve originated exclusively from the contralateral posterior vertical canal. Measured data and known semicircular canal plane vectors were used to calculate the spatial orientation of maximum sensitivity vectors for the investigated eye muscle nerves in semicircular canal coordinates. Comparison of the directions of maximal sensitivity vectors of responses evoked by linear or angular accelerations in a given eye
muscle nerve showed that the two vector directions were oriented about
orthogonally with respect to each other. With this arrangement the
linear and the angular vestibuloocular reflex can support each other
dynamically whenever they are co-activated without a change in the
spatial response characteristics. The mutual adaptation of angular and
linear vestibuloocular reflexes as well as the differences in their
organization described here for frogs may represent a basic feature
common for vertebrates in general.</abstract><cop>United States</cop><pub>Am Phys Soc</pub><pmid>11784757</pmid><doi>10.1152/jn.00404.2001</doi><tpages>14</tpages></addata></record> |
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| source | MEDLINE; American Physiological Society; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals |
| subjects | Acceleration Action Potentials - physiology Animals Cranial Nerves - physiology Oculomotor Muscles - innervation Oculomotor Muscles - physiology Physical Stimulation - instrumentation Physical Stimulation - methods Rana temporaria - physiology Reflex, Vestibulo-Ocular - physiology Saccule and Utricle - physiology Signal Processing, Computer-Assisted Space life sciences |
| title | Principles of Linear and Angular Vestibuloocular Reflex Organization in the Frog |
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