• Focal cobalt injections into various layers of the optic tectum label small groups of neurons which appear as columns formed by dendrites oriented perpendicular to the surface. (springer.com)
  • Afferents to the tectum originate bilaterally from the retina, pretectum, and the isthmic nucleus, and ipsilaterally from certain thalamic nuclei, the nucleus profundus lateralis, the anterodorsal and posterodorsal tegmental nuclei, and from the contralateral optic tectum. (springer.com)
  • Non-retinal afferents arrive at the pretectum from the ipsilateral striatum, anterior and lateral thalamic nuclei, pretectal grey, optic tectum and the medullary reticular formation, and from the contralateral superior vestibular nucleus and posterior thalamic nucleus. (springer.com)
  • Constantine-Paton M, Pitts EC, Reh TA (1983) The relationship between retinal axon ingrowth, terminal morphology, and terminal patterning in the optic tectum of the frog. (springer.com)
  • Contestabile A (1976) Comparative survey on enzyme localization, ultrastructural arrangement and functional organization in the optic tectum of nonmammalian vertebrates. (springer.com)
  • We report that the EphB receptor ligand, ephrin-B1, may act bifunctionally as both a branch repellent and attractant to control the unique mechanisms in mapping the dorsal-ventral (DV) retinal axis along the lateral-medial (LM) axis of the optic tectum. (biologists.org)
  • The dominant model system for studying map development is the projection from the retina to its major midbrain target, the superior colliculus of mammals, or its non-mammalian homolog, the optic tectum. (biologists.org)
  • the optic lobe/tectum of the midbrain which was responsive to visual messages, and the hindbrain which was concerned with movement. (brainmind.com)
  • Also related to limbic system functioning are portions of the reticular activating system, the orbital frontal and inferior temporal lobes, as well as parts of the thalamus and cerebellum. (brainmind.com)
  • By time the first vertebrates and fish begin to swim the oceans, around 500 million years ago, the first primitive lobes of the brain had also become fashioned through the collectivization of these neural ganglia. (brainmind.com)
  • Shomrat T, Zarrella I, Fiorito G, Hochner B (2008) The octopus vertical lobe modulates short-term learning rate and uses LTP to acquire long-term memory. (springer.com)