Visual wulst influences on flash evoked responses in the ectostriatum of the zebra finch

Engelage J, Bischof H-J (1994)
Brain Research 652(1): 17-27.

Zeitschriftenaufsatz | Veröffentlicht | Englisch
 
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Engelage, Jürgen; Bischof, Hans-JoachimUniBi
Abstract / Bemerkung
Anatomical data suggest that visual information from the thalamofugal pathway contributes to visual processing in the tectofugal pathway. We addressed the question of the functionality of anatomically described connections to the visual system of a laterally eyed bird, the zebra finch. The study shows the contribution of visual wulst efferents to visual processing in the ectostriatum by recordings of visually evoked slow field potentials. Suppression of visual wulst activity resulted in a selective reduction of distinct potential components in contralaterally evoked slow field potentials. A clear reduction was observed in the maximum amplitude of short latency components in the negative wave. Long latency components of the negative wave and the entire positive wave of the contralaterally flash evoked potentials were almost abolished. Ipsilateral visual evoked potentials (VEPs) were not significantly affected. Cooling and spreading depression of the optic tectum resulted in a uniform amplitude reduction of the negative wave. The positive wave was almost abolished. Ipsilateral VEPs disappeared completely during suppression of optic tectum activity. The results showed that the visual wulst has a significant, most likely facilitatory, influence on the processing of contralateral visual information in the ectostriatum. Ipsilateral stimulus processing was partly independent from visual wulst activity. A model for thalamo- and tectofugal connectivity in the ectostriatum is suggested.
Stichworte
Nervous System; Sense Organs; Sensory Reception; Neural Coordination
Erscheinungsjahr
1994
Zeitschriftentitel
Brain Research
Band
652
Ausgabe
1
Seite(n)
17-27
ISSN
0006-8993
Page URI
https://pub.uni-bielefeld.de/record/1773989

Zitieren

Engelage J, Bischof H-J. Visual wulst influences on flash evoked responses in the ectostriatum of the zebra finch. Brain Research. 1994;652(1):17-27.
Engelage, J., & Bischof, H. - J. (1994). Visual wulst influences on flash evoked responses in the ectostriatum of the zebra finch. Brain Research, 652(1), 17-27. https://doi.org/10.1016/0006-8993(94)90312-3
Engelage, Jürgen, and Bischof, Hans-Joachim. 1994. “Visual wulst influences on flash evoked responses in the ectostriatum of the zebra finch”. Brain Research 652 (1): 17-27.
Engelage, J., and Bischof, H. - J. (1994). Visual wulst influences on flash evoked responses in the ectostriatum of the zebra finch. Brain Research 652, 17-27.
Engelage, J., & Bischof, H.-J., 1994. Visual wulst influences on flash evoked responses in the ectostriatum of the zebra finch. Brain Research, 652(1), p 17-27.
J. Engelage and H.-J. Bischof, “Visual wulst influences on flash evoked responses in the ectostriatum of the zebra finch”, Brain Research, vol. 652, 1994, pp. 17-27.
Engelage, J., Bischof, H.-J.: Visual wulst influences on flash evoked responses in the ectostriatum of the zebra finch. Brain Research. 652, 17-27 (1994).
Engelage, Jürgen, and Bischof, Hans-Joachim. “Visual wulst influences on flash evoked responses in the ectostriatum of the zebra finch”. Brain Research 652.1 (1994): 17-27.
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30 References

Daten bereitgestellt von Europe PubMed Central.

Visual wulst influences on the optic tectum of the pigeon.
Bagnoli B, Francesconi W, Magni F., Brain Behav. Evol. 14(3), 1977
PMID: 851846
Interaction of optic tract and visual wulst impulses on single units of the pigeon's optic tectum.
Bagnoli P, Francesconi W, Magni F., Brain Behav. Evol. 16(1), 1979
PMID: 218674
Visual wulst-optic tectum relationships in birds: a comparison with the mammalian corticotectal system.
Bagnoli P, Francesconi W, Magni F., Arch Ital Biol 120(1-3), 1982
PMID: 7138181
A stereotaxic headholder for small birds.
Bischof HJ., Brain Res. Bull. 7(4), 1981
PMID: 7028213
Contralateral projections of the optic tectum in the zebra finch (Taeniopygia guttata castanotis)
Bischof, Cell Tissue Res. 262(), 1990
The structural organization of the avian brain: an overview
Cohen, 1974
Functional morphology of the visual system
Emmerton, 1983
The organization of the tectofugal pathway in birds: a comparative review
Engelage, 1993
The visual capabilities of birds
Hodos, 1993
Telencephalic projections of the nucleus rotundus in the pigeon (Columba livia).
Karten HJ, Hodos W., J. Comp. Neurol. 140(1), 1970
PMID: 5459211
Are visual hierarchies in the brains of the beholders? Constancy and variability in the visual system of birds and mammals
Karten, 1991
Spreading depression of activity in cerebral cortex
Leao, J. Neurophysiol. 7(), 1944
Receptive field properties of single cells in the pigeon's optic tectum during cooling of the 'visual wulst'.
Leresche N, Hardy O, Jassik-Gerschenfeld D., Brain Res. 267(2), 1983
PMID: 6307466

Polyak, 1957
The avian tectofugal visual pathway: projections of its telencepahlic target the ectostriatal complex
Ritchie, Soc. Neurosci. Abstr. 3(), 1977
Electrophysiology of the intertectal comissures in the pigeon. I. Analysis of the pathways
Robert, Exp. Brain Res. 9(), 1969

Sachs, 1990
Multiple origins of neocortex: contributions of the dorsal ventricular ridge
Shimizu, 1990
The avian visual system and the evolution of the neocortex
Shimizu, 1993
Two eyes are better than one: superior binocular discrimination learning in pigeons.
Watanabe S, Hodos W, Bessette BB., Physiol. Behav. 32(5), 1984
PMID: 6494290
Interocular transfer in parallel visual pathways in pigeons.
Watanabe S, Hodos W, Bessette BB, Shimizu T., Brain Behav. Evol. 29(3-4), 1986
PMID: 3594202
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