Mesencephalic control of lateral geniculate nucleus in primates. I. Electrophysiology

Visibility of Brief Images: The Dual-Process Approach

“…The facts support our conceptualisation: while the activity of the neurons of SP and fast primary cortical SP-responses show high resistance to the effects of certain general anesthetics, then NSP, on the contrary, can be considered as the principal target of the anesthetic procedures (Brazier, 1977;Menshutkin, Suvorova, & Balonov, 1981). This picture is consistent with data from Doty et al (1973), who found that in anesthetized monkeys diencephalic stimulation of NSP did not cause the effect of facilitation of SP-processes, whereas in alert monkeys this effect was obtained (with peak latency equal to about 70-120 ms). Consistent with this picture are the effects of caffeine, amphetamine, and their derivatives.…”

Acetylcholine and Somatically Evoked Inhibition on Perigeniculate Neurones in the Cat

“…The lateral geniculate nucleus (LGN) of mammals is the first relay station where the visual input can be influenced by an extra-retinal input (references in McIlwain, 1972;Freund, 1973). As previously shown in this laboratory by Meulders and co-workers (Meulders, Boisacq-Schepens, Godfraind & Colle, 1966;, somatic sensory stimulation facilitates visual responses in the LGN, and this effect is probably mediated from the midbrain reticular formation (Meulders et al, 1966;Melzack, Konrad & Dubrovsky, 1968;Mcllwain, 1972;Tatton & Crapper, 1972;Doty, Wilson, Bartlett & Pecci-Saavedra, 1973;Freund, 1973). Indeed electrical stimulation of either the somatic sensory area or the midbrain reticular formation evokes identical phenomena in the LGN region, although the effect of the peripheral stimulation is less marked (Meulders et al, 1966; Singer, 1973a).…”

Identification, classification and anatomical segregation of cells with X‐like and Y‐like properties in the lateral geniculate nucleus of old‐world primates.

“…From lateral geniculate nucleus to cortex, cat X cells show a longer latency than do Y cells, so that from retina to cortex there is a slow Xpathway and a faster Y-pathway (Hoffmann & Stone, 1971;Fukada, 1971;Cleland et al 1971). In primates, electrical stimulation of the visual cortex produces a shorter antidromic response latency in the magnocellular layers than in the parvocellular layers (Doty et al 1973). Marrocco X-AND Y-LIKE CELLS IN PRIMATE LON 451 & Brown (1975) report that lateral geniculate nucleus cells that show a short latency to optic chiasm stimulation also show a short latency to cortical stimulation and vice versa.…”