Behaviour of Medial Rectus Motoneurons in the Alert Cat
The activity of identified medial rectus motoneurons was recorded in alert cats during spontaneous and vestibular induced eye movements. Medial rectus motoneurons fired a burst of spikes slightly preceding adducting saccades and increased their discharge rate linearly with successive eye positions i...
Ausführliche Beschreibung
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| Autor*in: |
Cruz, R. R. [verfasserIn] Escudero, M. [verfasserIn] Delgado-Garcia, J. M. [verfasserIn] |
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| Format: |
E-Artikel |
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| Erschienen: |
Oxford, UK: Blackwell Publishing Ltd ; 1989 |
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| Umfang: |
Online-Ressource |
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| Reproduktion: |
2006 ; Blackwell Publishing Journal Backfiles 1879-2005 |
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| Übergeordnetes Werk: |
In: European journal of neuroscience - Oxford [u.a.] : Blackwell, 1989, 1(1989), 3, Seite 0 |
| Übergeordnetes Werk: |
volume:1 ; year:1989 ; number:3 ; pages:0 |
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| DOI / URN: |
10.1111/j.1460-9568.1989.tb00796.x |
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| 520 | |a The activity of identified medial rectus motoneurons was recorded in alert cats during spontaneous and vestibular induced eye movements. Medial rectus motoneurons fired a burst of spikes slightly preceding adducting saccades and increased their discharge rate linearly with successive eye positions in the adducting direction. Conduction velocity (21.3–98.2 m/s), eye position sensitivity (ks, 7.1 ± 1.5 spikes/s°deg), and eye velocity sensitivity (rs, 1 ± 0.2 spikes/s°deg/s) during spontaneous eye movements, and time constants calculated from phase lead analysis (T0, 135 ± 36 ms) showed values similar to those described previously for cat abducens motoneurons. The firing rate during repeated fixation of the same eye position was affected significantly by the direction of the preceding saccade and by the animal's level of alertness. Eye velocity sensitivity was not significantly affected by changes in the animal's level of alertness. A weak negative relationship (coefficient of correlation = -0.56) was observed between eye velocity sensitivity (rv) and sinusoidal rotational frequency, with no change in eye position sensitivity (kv) with stimulus frequency. The subsequent changes in the time constant (Tv) calculated as Tv= rv/kv in relation to stimulus frequency suggests that the oculomotor system deviates from a (linear) first-order model. | ||
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10.1111/j.1460-9568.1989.tb00796.x doi (DE-627)NLEJ239894049 DE-627 ger DE-627 rakwb Cruz, R. R. verfasserin aut Behaviour of Medial Rectus Motoneurons in the Alert Cat Oxford, UK Blackwell Publishing Ltd 1989 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The activity of identified medial rectus motoneurons was recorded in alert cats during spontaneous and vestibular induced eye movements. Medial rectus motoneurons fired a burst of spikes slightly preceding adducting saccades and increased their discharge rate linearly with successive eye positions in the adducting direction. Conduction velocity (21.3–98.2 m/s), eye position sensitivity (ks, 7.1 ± 1.5 spikes/s°deg), and eye velocity sensitivity (rs, 1 ± 0.2 spikes/s°deg/s) during spontaneous eye movements, and time constants calculated from phase lead analysis (T0, 135 ± 36 ms) showed values similar to those described previously for cat abducens motoneurons. The firing rate during repeated fixation of the same eye position was affected significantly by the direction of the preceding saccade and by the animal's level of alertness. Eye velocity sensitivity was not significantly affected by changes in the animal's level of alertness. A weak negative relationship (coefficient of correlation = -0.56) was observed between eye velocity sensitivity (rv) and sinusoidal rotational frequency, with no change in eye position sensitivity (kv) with stimulus frequency. The subsequent changes in the time constant (Tv) calculated as Tv= rv/kv in relation to stimulus frequency suggests that the oculomotor system deviates from a (linear) first-order model. 2006 Blackwell Publishing Journal Backfiles 1879-2005 |2006|||||||||| oculomotor system Escudero, M. verfasserin aut Delgado-Garcia, J. M. verfasserin aut In European journal of neuroscience Oxford [u.a.] : Blackwell, 1989 1(1989), 3, Seite 0 Online-Ressource (DE-627)NLEJ243926383 (DE-600)2005178-5 1460-9568 nnns volume:1 year:1989 number:3 pages:0 http://dx.doi.org/10.1111/j.1460-9568.1989.tb00796.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 1 1989 3 0 |
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10.1111/j.1460-9568.1989.tb00796.x doi (DE-627)NLEJ239894049 DE-627 ger DE-627 rakwb Cruz, R. R. verfasserin aut Behaviour of Medial Rectus Motoneurons in the Alert Cat Oxford, UK Blackwell Publishing Ltd 1989 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The activity of identified medial rectus motoneurons was recorded in alert cats during spontaneous and vestibular induced eye movements. Medial rectus motoneurons fired a burst of spikes slightly preceding adducting saccades and increased their discharge rate linearly with successive eye positions in the adducting direction. Conduction velocity (21.3–98.2 m/s), eye position sensitivity (ks, 7.1 ± 1.5 spikes/s°deg), and eye velocity sensitivity (rs, 1 ± 0.2 spikes/s°deg/s) during spontaneous eye movements, and time constants calculated from phase lead analysis (T0, 135 ± 36 ms) showed values similar to those described previously for cat abducens motoneurons. The firing rate during repeated fixation of the same eye position was affected significantly by the direction of the preceding saccade and by the animal's level of alertness. Eye velocity sensitivity was not significantly affected by changes in the animal's level of alertness. A weak negative relationship (coefficient of correlation = -0.56) was observed between eye velocity sensitivity (rv) and sinusoidal rotational frequency, with no change in eye position sensitivity (kv) with stimulus frequency. The subsequent changes in the time constant (Tv) calculated as Tv= rv/kv in relation to stimulus frequency suggests that the oculomotor system deviates from a (linear) first-order model. 2006 Blackwell Publishing Journal Backfiles 1879-2005 |2006|||||||||| oculomotor system Escudero, M. verfasserin aut Delgado-Garcia, J. M. verfasserin aut In European journal of neuroscience Oxford [u.a.] : Blackwell, 1989 1(1989), 3, Seite 0 Online-Ressource (DE-627)NLEJ243926383 (DE-600)2005178-5 1460-9568 nnns volume:1 year:1989 number:3 pages:0 http://dx.doi.org/10.1111/j.1460-9568.1989.tb00796.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 1 1989 3 0 |
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10.1111/j.1460-9568.1989.tb00796.x doi (DE-627)NLEJ239894049 DE-627 ger DE-627 rakwb Cruz, R. R. verfasserin aut Behaviour of Medial Rectus Motoneurons in the Alert Cat Oxford, UK Blackwell Publishing Ltd 1989 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The activity of identified medial rectus motoneurons was recorded in alert cats during spontaneous and vestibular induced eye movements. Medial rectus motoneurons fired a burst of spikes slightly preceding adducting saccades and increased their discharge rate linearly with successive eye positions in the adducting direction. Conduction velocity (21.3–98.2 m/s), eye position sensitivity (ks, 7.1 ± 1.5 spikes/s°deg), and eye velocity sensitivity (rs, 1 ± 0.2 spikes/s°deg/s) during spontaneous eye movements, and time constants calculated from phase lead analysis (T0, 135 ± 36 ms) showed values similar to those described previously for cat abducens motoneurons. The firing rate during repeated fixation of the same eye position was affected significantly by the direction of the preceding saccade and by the animal's level of alertness. Eye velocity sensitivity was not significantly affected by changes in the animal's level of alertness. A weak negative relationship (coefficient of correlation = -0.56) was observed between eye velocity sensitivity (rv) and sinusoidal rotational frequency, with no change in eye position sensitivity (kv) with stimulus frequency. The subsequent changes in the time constant (Tv) calculated as Tv= rv/kv in relation to stimulus frequency suggests that the oculomotor system deviates from a (linear) first-order model. 2006 Blackwell Publishing Journal Backfiles 1879-2005 |2006|||||||||| oculomotor system Escudero, M. verfasserin aut Delgado-Garcia, J. M. verfasserin aut In European journal of neuroscience Oxford [u.a.] : Blackwell, 1989 1(1989), 3, Seite 0 Online-Ressource (DE-627)NLEJ243926383 (DE-600)2005178-5 1460-9568 nnns volume:1 year:1989 number:3 pages:0 http://dx.doi.org/10.1111/j.1460-9568.1989.tb00796.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 1 1989 3 0 |
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10.1111/j.1460-9568.1989.tb00796.x doi (DE-627)NLEJ239894049 DE-627 ger DE-627 rakwb Cruz, R. R. verfasserin aut Behaviour of Medial Rectus Motoneurons in the Alert Cat Oxford, UK Blackwell Publishing Ltd 1989 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The activity of identified medial rectus motoneurons was recorded in alert cats during spontaneous and vestibular induced eye movements. Medial rectus motoneurons fired a burst of spikes slightly preceding adducting saccades and increased their discharge rate linearly with successive eye positions in the adducting direction. Conduction velocity (21.3–98.2 m/s), eye position sensitivity (ks, 7.1 ± 1.5 spikes/s°deg), and eye velocity sensitivity (rs, 1 ± 0.2 spikes/s°deg/s) during spontaneous eye movements, and time constants calculated from phase lead analysis (T0, 135 ± 36 ms) showed values similar to those described previously for cat abducens motoneurons. The firing rate during repeated fixation of the same eye position was affected significantly by the direction of the preceding saccade and by the animal's level of alertness. Eye velocity sensitivity was not significantly affected by changes in the animal's level of alertness. A weak negative relationship (coefficient of correlation = -0.56) was observed between eye velocity sensitivity (rv) and sinusoidal rotational frequency, with no change in eye position sensitivity (kv) with stimulus frequency. The subsequent changes in the time constant (Tv) calculated as Tv= rv/kv in relation to stimulus frequency suggests that the oculomotor system deviates from a (linear) first-order model. 2006 Blackwell Publishing Journal Backfiles 1879-2005 |2006|||||||||| oculomotor system Escudero, M. verfasserin aut Delgado-Garcia, J. M. verfasserin aut In European journal of neuroscience Oxford [u.a.] : Blackwell, 1989 1(1989), 3, Seite 0 Online-Ressource (DE-627)NLEJ243926383 (DE-600)2005178-5 1460-9568 nnns volume:1 year:1989 number:3 pages:0 http://dx.doi.org/10.1111/j.1460-9568.1989.tb00796.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 1 1989 3 0 |
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10.1111/j.1460-9568.1989.tb00796.x doi (DE-627)NLEJ239894049 DE-627 ger DE-627 rakwb Cruz, R. R. verfasserin aut Behaviour of Medial Rectus Motoneurons in the Alert Cat Oxford, UK Blackwell Publishing Ltd 1989 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The activity of identified medial rectus motoneurons was recorded in alert cats during spontaneous and vestibular induced eye movements. Medial rectus motoneurons fired a burst of spikes slightly preceding adducting saccades and increased their discharge rate linearly with successive eye positions in the adducting direction. Conduction velocity (21.3–98.2 m/s), eye position sensitivity (ks, 7.1 ± 1.5 spikes/s°deg), and eye velocity sensitivity (rs, 1 ± 0.2 spikes/s°deg/s) during spontaneous eye movements, and time constants calculated from phase lead analysis (T0, 135 ± 36 ms) showed values similar to those described previously for cat abducens motoneurons. The firing rate during repeated fixation of the same eye position was affected significantly by the direction of the preceding saccade and by the animal's level of alertness. Eye velocity sensitivity was not significantly affected by changes in the animal's level of alertness. A weak negative relationship (coefficient of correlation = -0.56) was observed between eye velocity sensitivity (rv) and sinusoidal rotational frequency, with no change in eye position sensitivity (kv) with stimulus frequency. The subsequent changes in the time constant (Tv) calculated as Tv= rv/kv in relation to stimulus frequency suggests that the oculomotor system deviates from a (linear) first-order model. 2006 Blackwell Publishing Journal Backfiles 1879-2005 |2006|||||||||| oculomotor system Escudero, M. verfasserin aut Delgado-Garcia, J. M. verfasserin aut In European journal of neuroscience Oxford [u.a.] : Blackwell, 1989 1(1989), 3, Seite 0 Online-Ressource (DE-627)NLEJ243926383 (DE-600)2005178-5 1460-9568 nnns volume:1 year:1989 number:3 pages:0 http://dx.doi.org/10.1111/j.1460-9568.1989.tb00796.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 1 1989 3 0 |
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Behaviour of Medial Rectus Motoneurons in the Alert Cat |
| abstract |
The activity of identified medial rectus motoneurons was recorded in alert cats during spontaneous and vestibular induced eye movements. Medial rectus motoneurons fired a burst of spikes slightly preceding adducting saccades and increased their discharge rate linearly with successive eye positions in the adducting direction. Conduction velocity (21.3–98.2 m/s), eye position sensitivity (ks, 7.1 ± 1.5 spikes/s°deg), and eye velocity sensitivity (rs, 1 ± 0.2 spikes/s°deg/s) during spontaneous eye movements, and time constants calculated from phase lead analysis (T0, 135 ± 36 ms) showed values similar to those described previously for cat abducens motoneurons. The firing rate during repeated fixation of the same eye position was affected significantly by the direction of the preceding saccade and by the animal's level of alertness. Eye velocity sensitivity was not significantly affected by changes in the animal's level of alertness. A weak negative relationship (coefficient of correlation = -0.56) was observed between eye velocity sensitivity (rv) and sinusoidal rotational frequency, with no change in eye position sensitivity (kv) with stimulus frequency. The subsequent changes in the time constant (Tv) calculated as Tv= rv/kv in relation to stimulus frequency suggests that the oculomotor system deviates from a (linear) first-order model. |
| abstractGer |
The activity of identified medial rectus motoneurons was recorded in alert cats during spontaneous and vestibular induced eye movements. Medial rectus motoneurons fired a burst of spikes slightly preceding adducting saccades and increased their discharge rate linearly with successive eye positions in the adducting direction. Conduction velocity (21.3–98.2 m/s), eye position sensitivity (ks, 7.1 ± 1.5 spikes/s°deg), and eye velocity sensitivity (rs, 1 ± 0.2 spikes/s°deg/s) during spontaneous eye movements, and time constants calculated from phase lead analysis (T0, 135 ± 36 ms) showed values similar to those described previously for cat abducens motoneurons. The firing rate during repeated fixation of the same eye position was affected significantly by the direction of the preceding saccade and by the animal's level of alertness. Eye velocity sensitivity was not significantly affected by changes in the animal's level of alertness. A weak negative relationship (coefficient of correlation = -0.56) was observed between eye velocity sensitivity (rv) and sinusoidal rotational frequency, with no change in eye position sensitivity (kv) with stimulus frequency. The subsequent changes in the time constant (Tv) calculated as Tv= rv/kv in relation to stimulus frequency suggests that the oculomotor system deviates from a (linear) first-order model. |
| abstract_unstemmed |
The activity of identified medial rectus motoneurons was recorded in alert cats during spontaneous and vestibular induced eye movements. Medial rectus motoneurons fired a burst of spikes slightly preceding adducting saccades and increased their discharge rate linearly with successive eye positions in the adducting direction. Conduction velocity (21.3–98.2 m/s), eye position sensitivity (ks, 7.1 ± 1.5 spikes/s°deg), and eye velocity sensitivity (rs, 1 ± 0.2 spikes/s°deg/s) during spontaneous eye movements, and time constants calculated from phase lead analysis (T0, 135 ± 36 ms) showed values similar to those described previously for cat abducens motoneurons. The firing rate during repeated fixation of the same eye position was affected significantly by the direction of the preceding saccade and by the animal's level of alertness. Eye velocity sensitivity was not significantly affected by changes in the animal's level of alertness. A weak negative relationship (coefficient of correlation = -0.56) was observed between eye velocity sensitivity (rv) and sinusoidal rotational frequency, with no change in eye position sensitivity (kv) with stimulus frequency. The subsequent changes in the time constant (Tv) calculated as Tv= rv/kv in relation to stimulus frequency suggests that the oculomotor system deviates from a (linear) first-order model. |
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Behaviour of Medial Rectus Motoneurons in the Alert Cat |
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Escudero, M. Delgado-Garcia, J. M. |
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