Pretecto-tectal influences
作者： W.W. Schwippert , T.W. Beneke , J.-P. Ewert
DOI: 10.1007/BF00239921
关键词:
摘要: (1)From the dorsal surface of toad (Bufo b. spinosus, B. marinus) optic tectum (OT), field potentials (FP) were recorded at 9 reference sites in response to electrical stimulation nerve (ON). The FP showed 4 main components, besides an initial deflection attributed axonal potentials: two negative waves N1, N2 (attributed postsynaptic excitatory processes) and positive P2, P3 inhibitory processes). responses across rather similar different individuals. (2) Electrical area ipsilateral pretectal lateral posterodorsal posterior (Lpd/P) thalamic region evoked tectal FPs showing mainly a wave. Regarding wave amplitudes, displayed disproportionalities sites. (3) contralateral Lpd/P whose disproportionality corresponded roughly one obtained stimulation. (4) inital ON was nearly abolished, if preceded delay 17–25 ms. (5) Since adaptation repetitive stimulation, various experiments carried out distinguish phenomena from effects neuronal interactions between OT. (6) results provide evidence that ON- Lpd/P-mediated inputs interact superficial layers, whereby pretectotectal input suppresses retinotectal information transfer. Input OT suggests inhibition. This study provides no about deeper which anatomically are known exist.
springer.com
sci-hub.se 参考文章(75)
J.-P. Ewert, T. W. Beneke, E. Schürg-Pfeiffer, W. W. Schwippert, A. Weerasuriya, Sensorimotor Processes That Underlie Feeding Behavior in Tetrapods Springer, Berlin, Heidelberg. pp. 119- 162 ,(1994) , 10.1007/978-3-642-57906-6_6
Edward R. Gruberg, Nucleus Isthmi and Optic Tectum in Frogs Springer, Boston, MA. pp. 341- 356 ,(1989) , 10.1007/978-1-4899-0897-1_10
George Székely, Anatomy and Synaptology of the Optic Tectum Visual Centers in the Brain. pp. 1- 26 ,(1973) , 10.1007/978-3-642-65495-4_1
Gerhard Manteuffel, Compensation of Visual Background Motion in Salamanders Springer, Boston, MA. pp. 311- 340 ,(1989) , 10.1007/978-1-4899-0897-1_9
Nobuyoshi Matsumoto, Morphological and Physiological Studies of Tectal and Pretectal Neurons in the Frog Springer, Boston, MA. pp. 201- 222 ,(1989) , 10.1007/978-1-4899-0897-1_5
Uwe an der Heiden, Gerhard Roth, Retina and Optic Tectum in Amphibians: A Mathematical Model and Simulation Studies Springer, Boston, MA. pp. 243- 267 ,(1989) , 10.1007/978-1-4899-0897-1_7
D. Ingle, Behavioral Correlates of Central Visual Function in Anurans Springer Berlin Heidelberg. pp. 435- 451 ,(1976) , 10.1007/978-3-642-66316-1_13
Jörg-Peter Ewert, The Release of Visual Behavior in Toads: Stages of Parallel/Hierarchical Information Processing Springer, Boston, MA. pp. 39- 120 ,(1989) , 10.1007/978-1-4899-0897-1_2
O.-J. Grüsser, Ursula Grüsser-Cornehls, Neurophysiology of the Anuran Visual System Springer, Berlin, Heidelberg. pp. 297- 385 ,(1976) , 10.1007/978-3-642-66316-1_10
Michael A. Arbib, Visuomotor Coordination: Neural Models and Perceptual Robotics Springer, Boston, MA. pp. 121- 171 ,(1989) , 10.1007/978-1-4899-0897-1_3