Now showing items 1-4 of 4

    • Extracellular recordings reveal absence of magneto sensitive units in the avian optic tectum 

      Ramírez, Edgardo; Marín, Gonzalo; Mpodozis Marín, Jorge; Letelier, Juan Carlos (Springer Verlag, 2014)
      © 2014, The Author(s).There is a consensus that birds detect the earth’s magnetic field and use some of its features for orientation and homing purposes. Since the late 1960s, when the first solid behavioral evidence of ...
    • From L'Homme Machine to metabolic closure: Steps towards understanding life 

      Letelier, Juan Carlos; Cárdenas, María Luz; Cornish-Bowden, Athel (2011)
      The nature of life has been a topic of interest from the earliest of times, and efforts to explain it in mechanistic terms date at least from the 18th century. However, the impressive development of molecular biology since ...
    • Spatial organization of the pigeon tectorotundal pathway: An interdigitating topographic arrangement 

      Marín, Gonzalo; Letelier, Juan Carlos; Henny, Pablo; Sentis, Elisa; Farfán, Gonzalo; Fredes, Felipe; Pohl, Nélida; Karten, Harvey J.; Mpodozis Marín, Jorge (2003)
      The retinotectofugal system is the main visual pathway projecting upon the telencephalon in birds and many other nonmammalian vertebrates. The ascending tectal projection arises exclusively from cells located in layer 13 ...
    • Why the cortical magnification factor in rhesus is isotropic 

      Letelier, Juan Carlos; Varela G., Francisco (1984)
      We examine the arguments advanced recently [by Sakitt (Vision Res. 22, 417-421, 1982), and Tootell et al. (Science 218, 902-904, 1982)] leading to the conclusion that the retino-cortical magnification factor cannot be ...