Effects of monocular and binocular stimulations upon cells of the superficial layer (superficial grey and optic strata) of the superior colliculus (SC) were studied in chronic cats with painless head fixation. They responded vigorously to moving stimuli (a 2° wide black stripe or a light slit of the same width, both moving at 40–100°/sec). Most cells were directionally selective and binocularly driven usually with a contralateral ocular dominance.
In a sample of 71 cells the five types of binocular interaction were found. In 36 units (50.7%) the response to binocular stimulation was larger than the sum of the responses to monocular stimulation of both eyes (facilitation) and in 12 units (16.7%) the reverse was true (occlusion). In 7 units (9.9%) the binocular response was equal to the sum of the two monocular responses (summation). In 11 units (15.5%) the binocular response was smaller than the response to dominant eye stimulation (inhibition). In 5 units (7.0%) whose background discharges were suppressed by monocular stimulation of one eye or both suppression became less marked for binocular stimulation (disinhibition). The most common type of binocular interaction was facilitation in the units with a clear ocular dominance and it was summation or occlusion in the units lacking ocular dominance. Facilitatory and inhibitory binocular interactions were more frequently seen in the directionally selective units than in the directionally non-selective ones
This is a preview of subscription content, log in to check access.
Buy single article
Instant access to the full article PDF.
Price includes VAT for USA
Subscribe to journal
Immediate online access to all issues from 2019. Subscription will auto renew annually.
This is the net price. Taxes to be calculated in checkout.
Altman, J.: Some fiber projections to the superior colliculus in the eat. J. comp. Neurol. 119, 77–96 (1962)
Barlow, H.B., Levick, W.R.: Retinal ganglion cells responding selectively to direction and speed of image motion in the rabbit. J. Physiol. (Lond.) 173, 377–407 (1964)
Barris, R.W., Ingram, W.R., Ranson, S.W.: Optic connection of the diencephalon and midbrain of the cat. J. comp. Neurol. 62, 117–154 (1935)
Berman, N., Cynader, M.: Comparison of receptive-field organization of the superior colliculus in Siamese and normal cats. J. Physiol. (Lond.) 224, 363–390 (1972)
Dreher, B., Hoffmann, K.-P.: Properties of excitatory and inhibitory regions of receptive fields of single units in the cat's superior colliculus. Exp. Brain Res. 16, 333–353 (1973)
Feldon, S., Feldon, P., Kruger, L.: Topography of the retinal projection upon the superior colliculus of the cat. Vision Res. 10, 135–143 (1970)
Garey, J., Powell, T.P.S.: The projection of the retina in the eat. J. Anat. (Lond.) 102, 189–222 (1968)
Hartiunian-Kozak, B., Kozak, W., Dec, K., Balcer, E.: Responses of single cells in the superior colliculus of the cat to diffuse light and moving stimuli. Acta Biol. Exp. 28, 317–331 (1968)
— Visually evoked potentials and single unit activity in the superior colliculus of the cat. Acta Neurobiol. Exp. 30, 211–232 (1970)
Henry, G.H., Bishop, P.O., Coombs, J.S.: Inhibitory and subliminal excitatory receptive fields of single units in cat striate cortex. Vision Res. 9, 1289–1296 (1969)
Hoffmann, K.-P., Dreher, B.: The spatial organization of the excitatory region of receptive fields in the cat's superior colliculus. Exp. Brain Res. 16, 354–370 (1973)
Laties, A.M., Sprague, J.M.: The projection of optic fibers to the visual centers in the eat. J. comp. Neurol. 127, 35–70 (1966)
McIlwain, J.T., Buser, P.: Receptive fields of single cells in the cat's superior colliculus. Exp. Brain Res. 5, 314–325 (1968)
Noda, H., Freeman, R.B., Jr., Gies, B., Creutzfeldt, O.D.: Neural responses in the visual cortex of awake cats to stationary and moving targets. Exp. Brain Res. 12, 389–405 (1971a)
— Creutzfeldt, O.D., Freeman, R.B., Jr.: Binocular interaction in the visual cortex of awake cats. Exp. Brain Res. 12, 406–421 (1971b)
— Tamaki, Y., Iwama, K.: Binocular units in the lateral geniculate nucleus of chronic cats. Brain Res. 41, 81–99 (1972)
Pettigrew, J.D., Nikara, T., Bishop, P.O.: Binocular interaction of single units in cat striate cortex: Simultaneous stimulation by moving slit with receptive fields in correspondence. Exp. Brain Res. 6, 391–410 (1968)
Rodieck, R.W.: Receptive fields in the cat retna: A new type. Science 157, 90–92 (1967)
Rosenquist, A.C., Palmer, L.A.: Visual receptive field properties of cells of the superior colliculus after cortical lesions in the cat. Exp. Neurol. 33, 629–652 (1971)
Sprague, J.M., Marchiafava, P.L., Rizzolatti, G.: Unit responses to visual stimuli in the superi- or colliculus of the unanaesthetized, mid-pontine cat. Arch. ital. Biol. 106, 169–193 (1968)
Sterling, P., Wickelgren, B.G.: Visual receptive fields in the superior colliculus of the cat. J. Neurophysiol. 32, 1–15 (1969)
Stone, J., Hoffmann, K.-P.: Very slow-conducting ganglion cells in the cat's retina: a major, new functional type ? Brain Res. 43, 610–616 (1972)
Straschill, M., Hoffmann, K.-P.: Functional aspects of localization in the cat's tectum opticum. Brain Res. 13, 274–283 (1969)
— Taghavy, A.: Neuronale Reaktionen im Tectum opticum der Katze auf bewegte und stationäre Lichtreize. Exp. Brain Res. 3, 353–367 (1967)
About this article
Cite this article
Hayashi, Y., Nagata, T., Tamaki, Y. et al. Binocular interaction in the superior colliculus of chronic cats. Exp Brain Res 18, 531–547 (1973). https://doi.org/10.1007/BF00234136
- Visual neurones
- Superior colliculus
- Binocular interaction
- Chronic cats