Summary
Short and long lead burst neurons antidromically activated from the rostral mesencephalic reticular formation, and synaptically activated from the contralateral superior colliculus were recorded in the medullary reticular formation underlying the prepositus hypoglossi nucleus. These neurons were shown to be related to vertical eye movements, ranging from pure vertical to oblique planes. Vertical saccade coding was similar to that of horizontal short lead pontine cells. The presence of vertical short and long lead burst neurons in the medullary reticular formation raises new questions about the organization of the control of eye movements in the vertical plane.
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Baker R, Berthoz A, Delgado-García JM (1977) Monosynaptic excitation of trochlear motoneurons following electrical stimulation of the prepositus hypoglossi nucleus. Brain Res 121: 157–161
Berthoz A, Grantyn A (1986) Neuronal mechanisms underlying eye-head coordination. In: Freund HJ, Büttner U, Cohen B, Neth J (eds) Progress in brain research, Vol 64. Elsevier, North/Holland New York, pp 325–343
Berthoz A, Grantyn A, Dreoulez J (1986) Some collicular efferents neurons code saccadic eye velocity. Neurosci Lett 72: 289–294
Büttner U, Büttner-Ennever JA, Henn V (1977) Vertical eye movement related unit activity in the rostral mesencephalic reticular formation of the alert monkey. Brain Res 130: 239–252
Delgado-García JM, del Pozo F, Baker R (1986) Behavior of neurons in the abducens nucleus of the alert cat. I. Motoneurons. Neuroscience 17: 929–953
Fuchs AF, Kaneko CRS, Scudder CA (1985) Brainstem control of saccadic eye movements. Ann Rev Neurosci 8: 307–337
Graybiel AM (1977) Organization of oculomotor pathways in the cat and rhesus monkey. In: Berthoz A, Baker R (eds) Control of gaze by brainstem neurons. Elsevier, North/Holland New York, pp 79–88
Hepp K, Henn V (1983) Spatio-temporal recording of rapid eye movement signals in the monkey paramedian pontine reticular formation. Exp Brain Res 52: 105–120
Kaneko CRS, Fuchs AF (1981) Inhibitory burst neurons in alert trained cats: comparison with excitatory burst neurons and functional implications. In: Fuchs AF, Becker W (eds) Progress in oculomotor research. Elsevier, North/Holland New York, pp 63–70
King WM, Fuchs AF (1979) Reticular control of vertical saccadic eye movements by mesencephalic burst neurons. J Neurophysiol 42: 861–876
King WM, Fuchs AF, Magnin M (1981) Vertical eye movement-related responses of neurons in mid brain near interstitial nucleus of Cajal. J Neurophysiol 46: 549–562
Kömpf D, Pasik T, Pasik P, Bender M (1979) Downward gaze in monkey. Stimulation and lesion studies. Brain 102: 527–558
López-Barneo J, Ribas J, Delgado-García JM (1981) Identification of prepositus neurons projecting to the oculomotor nucleus in the alert cat. Brain Res 214: 174–179
López-Barneo J, Darlot C, Berthoz A, Baker R (1982) Neuronal activity in prepositus nucleus correlated with eye movement in the alert cat. J Neurophysiol 47: 329–352
Luschei ES, Fuchs AF (1972) Activity of brainstem neurons during eye movements of alert monkeys. J Neurophysiol 35: 445–461
McCrea RA, Baker R (1985) Anatomical connections of the nucleus prepositus of the cat. J Comp Neurol 237: 377–407
Nakao S, Shiraishi Y, Oikawa T (1986) Vertical eye movement related neurons in the cat mesodiencephalic junction: firing pattern, location and projection to oculomotor and trochlear nuclei. In: Developments in oculomotor research. Satellite meeting to the XXX International Congress of the I.U.P.S., Gleneden Beach, Oregon, WP-22
Peterson BW (1977) Identification of reticulospinal projections that may participate in gaze control. In: Baker R, Berthoz A (eds) Control of gaze by brainstem neurons. Elsevier, North/Holland New York, pp 143–152
Roucoux A, Crommelinck M, Guitton D (1981) The role of superior colliculus in the generation of gaze shift. In: Fuchs AF, Becker, W (eds) Progress in oculomotor research, developments in neuroscience, Vol 12. Elsevier, North/Holland, New York, pp 129–135
Sokal RR, Rohlf FJ (1981) Biometry. WH Freeman and Company, New York
Strassman A, Highstein SM, McCrea RA (1986) Anatomy and physiology of saccadic burst neurons in the alert squirrel monkey. II. Inhibitory burst neurons. J Comp Neurol 249: 358–380
van Gisbergen JAM, Robinson DA, Gielen S (1981) A quantitative analysis of generation of saccadic eye movements by burst neurons. J Neurophysiol 45: 417–442
Yoshida K, McCrea R, Berthoz A, Vidal PP (1982) Morphological and physiological characteristics of inhibitory burst neurons controlling horizontal rapid eye movements in the alert cat. J Neurophysiol 48: 761–784
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Delgado-García, J.M., Vidal, P.P., Gómez, C. et al. Vertical eye movements related signals in antidromically identified medullary reticular formation neurons in the alert cat. Exp Brain Res 70, 585–589 (1988). https://doi.org/10.1007/BF00247606
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DOI: https://doi.org/10.1007/BF00247606