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Ward PH. Neurophysiological correlates of nystagmus. Laryngoscope 2014. [DOI: 10.1002/lary.5540831119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Tian JR, Ishiyama A, Demer JL. Effect of unilateral vestibular deafferentation on the initial human vestibulo-ocular reflex to surge translation. Exp Brain Res 2006; 176:575-87. [PMID: 16900361 PMCID: PMC1865111 DOI: 10.1007/s00221-006-0636-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2006] [Accepted: 07/14/2006] [Indexed: 10/24/2022]
Abstract
Transient whole-body surge (fore-aft) translation at 0.5 G peak acceleration was administered to six subjects with unilateral vestibular deafferentation (UVD), and eight age-matched controls. Subjects viewed eccentric targets to determine if linear vestibulo-ocular reflex (LVOR) asymmetry might lateralize otolith deficits. Eye rotation was measured using magnetic search coils. Immediately before surge, subjects viewed a luminous target 50 cm away, centered or displaced 10 degrees horizontally or vertically. The target was extinguished during randomly directed surges. LVOR gain relative to ideal velocity in subjects with UVD for the contralesional horizontally eccentric target (0.59 +/- 0.08, mean +/- SEM) did not differ significantly from normal (0.50 +/- 0.04), but gain for the ipsilesional eccentric target (0.35 +/- 0.02) was significantly less than normal (0.48 +/- 0.03, P < 0.05). Normal subjects had mean gain asymmetry for horizontally eccentric targets of 0.17 +/- 0.03, but asymmetry in UVD was significantly increased to 0.35 +/- 0.05 (P < 0.05). Four of six subjects with UVD had maximum gain asymmetry outside normal 95% confidence limits. Asymmetry did not correlate with UVD duration. Gain for 10 degrees vertically eccentric targets averaged 0.38 +/- 0.14 for subjects with UVD, insignificantly lower than the normal value of 0.75 +/- 0.15 (P > 0.05). Surge LVOR latency was symmetrical in UVD, and did not differ significantly from normal. There was no significant difference in response between dark and visible target conditions until 200 ms after surge onset. Chronic human UVD, on average, significantly impairs the surge LVOR for horizontally eccentric targets placed ipsilesionally, but this asymmetry is small relative to interindividual variation.
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Affiliation(s)
- Jun-Ru Tian
- Department of Ophthalmology, University of California, Los Angeles, California 90095-7002, USA.
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Meng H, Green AM, Dickman JD, Angelaki DE. Pursuit--vestibular interactions in brain stem neurons during rotation and translation. J Neurophysiol 2005; 93:3418-33. [PMID: 15647394 DOI: 10.1152/jn.01259.2004] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Under natural conditions, the vestibular and pursuit systems work synergistically to stabilize the visual scene during movement. How translational vestibular signals [translational vestibuloocular reflex (TVOR)] are processed in the premotor pathways for slow eye movements continues to remain a challenging question. To further our understanding of how premotor neurons contribute to this processing, we recorded neural activities from the prepositus and rostral medial vestibular nuclei in macaque monkeys. Vestibular neurons were tested during 0.5-Hz rotation and lateral translation (both with gaze stable and during VOR cancellation tasks), as well as during smooth pursuit eye movements. Data were collected at two different viewing distances, 80 and 20 cm. Based on their responses to rotation and pursuit, eye-movement-sensitive neurons were classified into position-vestibular-pause (PVP) neurons, eye-head (EH) neurons, and burst-tonic (BT) cells. We found that approximately half of the type II PVP and EH neurons with ipsilateral eye movement preference were modulated during TVOR cancellation. In contrast, few of the EH and none of the type I PVP cells with contralateral eye movement preference modulated during translation in the absence of eye movements; nor did any of the BT neurons change their firing rates during TVOR cancellation. Of the type II PVP and EH neurons that modulated during TVOR cancellation, cell firing rates increased for either ipsilateral or contralateral displacement, a property that could not be predicted on the basis of their rotational or pursuit responses. In contrast, under stable gaze conditions, all neuron types, including EH cells, were modulated during translation according to their ipsilateral/contralateral preference for pursuit eye movements. Differences in translational response sensitivities for far versus near targets were seen only in type II PVP and EH cells. There was no effect of viewing distance on response phase for any cell type. When expressed relative to motor output, neural sensitivities during translation (although not during rotation) and pursuit were equivalent, particularly for the 20-cm viewing distance. These results suggest that neural activities during the TVOR were more motorlike compared with cell responses during the rotational vestibuloocular reflex (RVOR). We also found that neural responses under stable gaze conditions could not always be predicted by a linear vectorial addition of the cell activities during pursuit and VOR cancellation. The departure from linearity was more pronounced for the TVOR under near-viewing conditions. These results extend previous observations for the neural processing of otolith signals within the premotor circuitry that generates the RVOR and smooth pursuit eye movements.
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Affiliation(s)
- Hui Meng
- Dept. of Neurobiology, Box 8108, Washington University School of Medicine, 660 South Euclid Avenue, St. Louis, MO 63110, USA
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Angelaki DE. Eyes on Target: What Neurons Must do for the Vestibuloocular Reflex During Linear Motion. J Neurophysiol 2004; 92:20-35. [PMID: 15212435 DOI: 10.1152/jn.00047.2004] [Citation(s) in RCA: 104] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
A gaze-stabilization reflex that has been conserved throughout evolution is the rotational vestibuloocular reflex (RVOR), which keeps images stable on the entire retina during head rotation. An ethological newer reflex, the translational or linear VOR (TVOR), provides fast foveal image stabilization during linear motion. Whereas the sensorimotor processing has been extensively studied in the RVOR, much less is currently known about the neural organization of the TVOR. Here we summarize the computational problems faced by the system and the potential solutions that might be used by brain stem and cerebellar neurons participating in the VORs. First and foremost, recent experimental and theoretical evidence has shown that, contrary to popular beliefs, the sensory signals driving the TVOR arise from both the otolith organs and the semicircular canals. Additional unresolved issues include a scaling by both eye position and vergence angle as well as the temporal transformation of linear acceleration signals into eye-position commands. Behavioral differences between the RVOR and TVOR, as well as distinct differences in neuroanatomical and neurophysiological properties, raise multiple functional questions and computational issues, only some of which are readily understood. In this review, we provide a summary of what is known about the functional properties and neural substrates for this oculomotor system and outline some specific hypotheses about how sensory information is centrally processed to create motor commands for the VORs.
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Affiliation(s)
- Dora E Angelaki
- Department of Neurobiology, Washington University School of Medicine, St. Louis, Missouri 63110, USA.
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Precht W, Volkind R, Maeda M, Giretti ML. The effects of stimulating the cerebellar nodulus in the cat on the responses of vestibular neurons. Neuroscience 2001; 1:301-12. [PMID: 11370514 DOI: 10.1016/0306-4522(76)90057-9] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
In a first series of experiments, recordings were obtained from cat abducens and trochlear motorneurons and from axons of secondary vestibular neurons terminating in these motor nuclei, and the effects of cerebellar nodulus stimulation on utricular- and canal-evoked responses in these neurons were studied. Ultricular activation of vestibular axons recorded in the ipsilateral VIth and contralateral IVth nuclei was probably monosynaptically inhibited by nodular stimulation provided conditioning-test intervals were in the range between 0-10 ms and the test stimuli were close to threshold intensities. Of the vestibular axons activated by stimulation of the semicircular canal nerves only those evoked by the horizontal canal stimulation and recorded in the ipsilateral VIth nucleus were weakly inhibited. When the vestibular stimuli were strong enough to produce clear field potentials in the motor nuclei and/or postsynaptic potentials in motorneurons, nodular stimulation had practically no effect on their amplitudes. It is concluded that inhibition of vestibuloocular transmission is weak as compared to floccular inhibition studied previously. In a second series of experiments, recordings were obtained from vestibular neurons which were activated antidromically and/or transsynaptically by stimulation of the contralateral fastigial nucleus, and the effects of ipsilateral nodular stimulation on these responses were studied. It was found that nodular stimulation inhibited both antidromic as well as transsynaptic fastigial activations of vestibular neurons. Most of these vestibular neurons were located in the descending vestibular nucleus and received polysynaptic vestibular and spinal inputs. It is concluded that in addition to its weak inhibitory effect on vestibuloocular transmission the nodulus exerts a powerful inhibition on vestibular neurons transmitting vestibular and spinal inputs to cerebellar nuclei and/or cortex. It is suggested that the nodulus controls cerebellar projecting vestibular neurons which carry vestibular and spinal information to the cerebellum. The vestibular, proprioceptive and visual information which is present in the nodulus may aid the role of the nodulus in controlling body posture.
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Affiliation(s)
- W Precht
- Department of Neurobiology, Max Planck Institut for Brain Research, Frankfurt, West Germany
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Abstract
Rotational and translational vestibulo-ocular reflexes (RVOR and TrVOR) function to maintain stable binocular fixation during head movements. Despite similar functional roles, differences in behavioral, neuroanatomical, and sensory afferent properties suggest that the sensorimotor processing may be partially distinct for the RVOR and TrVOR. To investigate the currently poorly understood neural correlates for the TrVOR, the activities of eye movement-sensitive neurons in the rostral vestibular nuclei were examined during pure translation and rotation under both stable gaze and suppression conditions. Two main conclusions were made. First, the 0.5 Hz firing rates of cells that carry both sensory head movement and motor-like signals during rotation were more strongly related to the oculomotor output than to the vestibular sensory signal during translation. Second, neurons the firing rates of which increased for ipsilaterally versus contralaterally directed eye movements (eye-ipsi and eye-contra cells, respectively) exhibited distinct dynamic properties during TrVOR suppression. Eye-ipsi neurons demonstrated relatively flat dynamics that was similar to that of the majority of vestibular-only neurons. In contrast, eye-contra cells were characterized by low-pass filter dynamics relative to linear acceleration and lower sensitivities than eye-ipsi cells. In fact, the main secondary eye-contra neuron in the disynaptic RVOR pathways (position-vestibular-pause cell) that exhibits a robust modulation during RVOR suppression did not modulate during TrVOR suppression. To explain these results, a simple model is proposed that is consistent with the known neuroanatomy and postulates differential projections of sensory canal and otolith signals onto eye-contra and eye-ipsi cells, respectively, within a shared premotor circuitry that generates the VORs.
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Horcholle-Bossavit G, Jami L, Petit J, Scott JJ. Activation of cat motor units by paired stimuli at short intervals. J Physiol 1987; 387:385-99. [PMID: 3656178 PMCID: PMC1192510 DOI: 10.1113/jphysiol.1987.sp016579] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
1. In adult cats, paired stimulations at short intervals were applied in ventral root filaments to single motor axons innervating the peroneus tertius muscle. Paired impulses were recorded from the muscle nerve simultaneously with the electrical and mechanical responses of the muscle portion of the motor unit (muscle unit). The interstimulus interval was gradually reduced in order to determine the minimum compatible with a full activation of the muscle unit by the second impulse. 2. For motor units of all physiological types, this minimum stimulus interval was the shortest interval allowing initiation and conduction of two impulses in the axon, that is, the absolute refractory period for conduction. Its duration ranged between 0.58 and 0.88 ms, displaying no correlation with the axonal conduction velocity. 3. The amount of tension enhancement produced by paired stimulations at the shortest interval varied with the type of the motor unit: it was largest for fast-fatigable units, intermediate for fast-resistant units and smallest for slow units. 4. Paired impulses elicited by paired stimulations at the shortest possible interval arrived near the muscle at a longer interval because the second impulse was conducted at a slower velocity. The minimum interval between arrival of impulses at the muscle depended on conduction velocity and on conduction distance. 5. In motor axons to peroneus tertius, paired impulses leaving the spinal cord at a mean interval of 0.78 ms arrived near the muscle separated by a mean interval of 1.90 ms. Since such an interval always allowed full activation of the muscle unit by the second impulse, this interval is longer than the refractory period of motor units in this muscle.
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Delgado-Garcia JM, del Pozo F, Baker R. Behavior of neurons in the abducens nucleus of the alert cat--I. Motoneurons. Neuroscience 1986; 17:929-52. [PMID: 3487043 DOI: 10.1016/0306-4522(86)90072-2] [Citation(s) in RCA: 117] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
The activity of 53 antidromically identified abducens motoneurons was analyzed in alert cats during spontaneous and vestibular induced eye movements. Conduction velocities ranged from 13 to 70 m/s and all motoneurons increased their discharge rates with successive eye positions in the abducting direction. Motoneurons were recruited from -19 degrees to +7 degrees. Within the oculomotor range frequency saturation was never observed for any cell. The slope of rate-position (k) relationships ranged from 2 to 17.7 spikes/s/deg (n = 40, mean 8.7 +/- 2.5). Regression analysis showed that the rate-position plots could be fit by straight lines but in most cases exponential curves produced slightly better statistical fits. Steeper slopes suggest that successively larger increases in k are required for the lateral rectus muscle to maintain more eccentric fixations in the on direction. Interspike intervals for a constant eye position exhibited low variability (less than 3.5%) for fixations shorter than 1 s. Over longer periods, variability increased in proportion to the duration of the fixation in exponential-like fashion up to 14%. Abducens motoneurons showed considerable variability in frequency during repeated fixations of the same eye position. Discharge rates were found to depend upon both the direction of the previous eye movement and, more importantly, the animal's level of alertness. The rate-position regression lines for fixation periods after saccades in the on direction significantly differed in slopes (100%) and thresholds (20%) from those in the off direction. The observed static hysteresis in abducens motoneuron behavior was in opposite direction to that previously described for the mechanical properties of the lateral rectus. This suggests both neural and mechanical factors are significantly involved in determining final eye position. The animal's level of alertness was evaluated in this study by counting the number of saccadic movements/s occurring in "alert" (1 +/- 0.2 saccades/s), and "drowsy" (0.5 +/- 0.2 saccades/s) circumstances. Comparison of the rate-position regression lines between the two conditions showed a significant decrease in slopes (100%) and elevation of thresholds (70%). Discharge rate of abducens motoneurons increased abruptly 8.9 +/- 2.8 ms prior to saccades in the horizontal on direction, and decreased 14.8 +/- 4.05 m before saccades in the off direction. During purely vertical saccades the firing frequency of abducens motoneurons did not change. Burst frequency did not saturate during saccades, but increased with saccadic velocity in a linear fashion.(ABSTRACT TRUNCATED AT 400 WORDS)
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Carleton SC, Carpenter MB. Distribution of primary vestibular fibers in the brainstem and cerebellum of the monkey. Brain Res 1984; 294:281-98. [PMID: 6200186 DOI: 10.1016/0006-8993(84)91040-0] [Citation(s) in RCA: 125] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Attempts were made to determine the central projections of ganglion cells innervating individual semicircular ducts in the monkey by implanting or injecting tritiated amino acids (leucine and/or proline), or horseradish peroxidase (HRP), selectively into a single ampulla. Central transport via the vestibular ganglion in animals receiving isotope implants or injections fell into three categories: (1) transport from ganglion cells innervating all receptive elements of the labyrinth, (2) transport from ganglion cells innervating the three semicircular ducts, and (3) transport from cells of the inferior vestibular ganglion innervating the posterior semicircular duct. Transneuronal transport of isotope was observed in secondary vestibular fibers in animals where proline was used and survival exceeded 12 days. Transneuronal labeling of secondary auditory fibers was independent on the [3H]amino acid used, and occurred with survivals of 10 or more days. HRP implanted into the ampulla of the lateral semicircular duct in several animals produced retrograde transport to efferent vestibular and cochlear neurons, but did not result in transganglionic labeling of primary vestibular or auditory fibers. Primary vestibular fibers terminate throughout the superior (SVN) and medial vestibular nuclei (MVN). Within SVN, terminals are most pronounced in its central large-celled portion, but extend into peripheral parts of the nucleus, except for a small medial area near its junction with the oral pole of MVN. Primary projections to MVN are homogenously distributed throughout the nucleus excepting a small circular area of sparse terminals along its ventral margin. Primary vestibular afferents terminate mainly in rostral and caudal portions of the inferior vestibular nucleus (IVN), but do not reach cell group 'f'. Projections to the lateral vestibular nucleus (LVN) are restricted to its ventral part. Primary projections to the accessory vestibular nuclei reach the interstitial nucleus of the vestibular nerve (NIVN) and cell group 'y'. Fibers project beyond the vestibular nuclei (VN) to terminate ipsilaterally in the accessory cuneate nucleus (ACN), the subtrigeminal lateral reticular nucleus (SLRN), and well-defined portions of the reticular formation (RF). Projections to SVN and MVN are derived primarily from ganglion cells innervating the semicircular ducts, while projections to caudal IVN, cell group 'y' and ACN are related mainly to macular portions of the vestibular ganglion. NIVN receives both macular and duct afferents.(ABSTRACT TRUNCATED AT 400 WORDS)
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Nakao S, Sasaki S. Excitatory input from interneurons in the abducens nucleus to medial rectus motoneurons mediating conjugate horizontal nystagmus in the cat. Exp Brain Res 1980; 39:23-32. [PMID: 7379884 DOI: 10.1007/bf00237066] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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12
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Abstract
Studies of the behavioral correlates of activity in reticular formation cells, usually performed in restrained animals, have found units whose discharge relates to sensory stimuli, pain and escape behavior, conditioning and habituation, arousal, complex motivational states, REM sleep, eye movements, respiration and locomotion. Units with these different behavioral correlates were found in the same anatomical areas. Most studies report that a large proportion of encountered cells related to the behavior being studied. If one adds up the reported percentages, the total far exceeds 100%. Therefore it appears that many investigators are looking at the same cells and reaching very different conclusions about their behavioral roles. On the basis of observations in unrestrained cats, it is hypothesized that discharge in most RF cells is primarily related to the excitation of small groups of muscles. This hypothesis can parsimoniously explain many previous observations on the behavioral correlates of these cells, and is consistent with anatomical, physiological and phylogenetic studies of the reticular formation. The hypothesized simplicity of reticular formation unit function is contrasted with the complexity of the behavioral functions mediated by the RF, and the implications of this contrast discussed.
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Thoden U, Schmidt P. Vestibular-neck interaction in abducens neurons. PROGRESS IN BRAIN RESEARCH 1979; 50:561-6. [PMID: 317850 DOI: 10.1016/s0079-6123(08)60854-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Precht W, Anderson JH, Blanks RH. Canal-otolith convergence on cat ocular motoneurons. PROGRESS IN BRAIN RESEARCH 1979; 50:459-68. [PMID: 551445 DOI: 10.1016/s0079-6123(08)60845-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Nakao S, Sasaki S. Firing pattern of interneurons in the abducens nucleus related to vestibular nystagmus in the cat. Brain Res 1978; 144:389-94. [PMID: 638769 DOI: 10.1016/0006-8993(78)90166-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Spencer RF, Sterling P. An electron microscope study of motoneurones and interneurones in the cat abducens nucleus identified by retrograde intraaxonal transport of horseradish peroxidase. J Comp Neurol 1977; 176:65-85. [PMID: 903432 DOI: 10.1002/cne.901760105] [Citation(s) in RCA: 76] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Blanks RH, Volkind R, Precht W, Baker R. Responses of cat prepositus hypoglossi neurons to horizontal angular acceleration. Neuroscience 1977; 2:391-403. [PMID: 302430 DOI: 10.1016/0306-4522(77)90005-7] [Citation(s) in RCA: 45] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Eckmiller R, Mackeben M. Functional changes in the oculomotor system of the monkey at various stages of barbiturate anesthesia and alertness. Pflugers Arch 1976; 363:33-42. [PMID: 818614 DOI: 10.1007/bf00587399] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
1. Single units in the III. and VI. nerve nuclei were continuously recorded together with vestibular stimuli and eye movements in macaques before, during, and after administration of barbiturate. 2. The visual input was functionally detached from the oculomotor system during the deeper stages of anesthesia, whereas some kind of vestibulo-ocular response could always be elicited. 3. The finding of various phase values between the maximum impulse rate IRmax of oculomotor units and the maximum stimulus velocity vmax during 1 Hz sinusoidal vestibular stimulation ranging from about 65 deg phase lead to 65 deg phase lag is suggested as important for the explanation of the phase shifts between head rotation and eye movement during anesthesia. 4. The phase relationship between IRmax and vmax was found to be unchanged, whereas the characteristic of IRmax versus vmax was highly sensitive to arousal stimuli for some oculomotor neurons. This sensitivity was represented exclusively by activation rather than inhibition.
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Baker R, Highstein SM. Physiological identification of interneurons and motoneurons in the abducens nucleus. Brain Res 1975; 91:292-8. [PMID: 1164676 DOI: 10.1016/0006-8993(75)90551-x] [Citation(s) in RCA: 136] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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Kubo T, Matsunaga T, Matano S. Effects of sinusoidal rotational stimulation on the vestibular neurons of rats. Brain Res 1975; 88:543-8. [PMID: 1079742 DOI: 10.1016/0006-8993(75)90668-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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Graybiel AM, Hartwieg EA. Some afferent connections of the oculomotor complex in the cat: an experimental study with tracer techniques. Brain Res 1974; 81:543-51. [PMID: 4434207 DOI: 10.1016/0006-8993(74)90850-6] [Citation(s) in RCA: 322] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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Magherini PC, Precht W, Schwindt PC. Functional organization of the vestibular input to ocular motoneurons of the frog. Pflugers Arch 1974; 349:149-58. [PMID: 4368734 DOI: 10.1007/bf00586625] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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Characteristics of Vestibular Neurons after Acute and Chronic Labyrinthine Destruction. VESTIBULAR SYSTEM PART 2: PSYCHOPHYSICS, APPLIED ASPECTS AND GENERAL INTERPRETATIONS 1974. [DOI: 10.1007/978-3-642-65920-1_12] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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Schwindt PC, Richter A, Precht W. Short latency utricular and canal input to ipsilateral abducens motoneurons. Brain Res 1973; 60:259-62. [PMID: 4744767 DOI: 10.1016/0006-8993(73)90867-6] [Citation(s) in RCA: 70] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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Grüsser OJ, Grüsser-Cornehls U. Neuronal Mechanisms of Visual Movement Perception and Some Psychophysical and Behavioral Correlations. CENTRAL PROCESSING OF VISUAL INFORMATION A: INTEGRATIVE FUNCTIONS AND COMPARATIVE DATA 1973. [DOI: 10.1007/978-3-642-65352-0_6] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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Cohen B, Komatsuzaki A. Eye movements induced by stimulation of the pontine reticular formation: evidence for integration in oculomotor pathways. Exp Neurol 1972; 36:101-17. [PMID: 4558412 DOI: 10.1016/0014-4886(72)90139-2] [Citation(s) in RCA: 138] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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Pompeiano O. Reticular control of the vestibular nuclei: physiology and pharmacology. PROGRESS IN BRAIN RESEARCH 1972; 37:601-18. [PMID: 4345133 DOI: 10.1016/s0079-6123(08)63936-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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Wilson VJ. Physiological pathways through the vestibular nuclei. INTERNATIONAL REVIEW OF NEUROBIOLOGY 1972; 15:27-81. [PMID: 4347728 DOI: 10.1016/s0074-7742(08)60328-1] [Citation(s) in RCA: 40] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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33
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Schiller PH. The discharge characteristics of single units in the oculomotor and abducens nuclei of the unanesthetized monkey. Exp Brain Res 1970; 10:347-62. [PMID: 4987208 DOI: 10.1007/bf02324764] [Citation(s) in RCA: 136] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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