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Author Andrew, R.J.
Title Changes in visual responsiveness following intercollicular lesions and their effects on avoidance and attack Type Journal Article
Year 1974 Publication Brain, Behavior and Evolution Abbreviated Journal Brain Behav Evol
Volume 10 Issue 4-5 Pages 400-424
Keywords Animals; Chickens; Humans; Male; Mutism; Superior Colliculi/*physiology; Tectum Mesencephali; Testosterone; Visual Fields; Vocalization, Animal
Abstract In the normal chick, conspicuous visual stimuli induce targetting and pecking together, with vocalization. All three are abolished by lesion of the intercollicular area (ICo) or of connections passing through its medial margin. After such lesions, chicks also cease to treat significant visual stimuli as if they were startling and exciting, and may delay response as a result. However, they are still able to recognise, orient accurately to, and respond appropriately to, a variety of complex visual stimuli (e.g. food grains, copulation object). In addition, they are little affected by strange surroundings. Lesion evidence suggests the mammalian subcollicular area to have similar functions to the ICo and to be homologous with it. A route (present in bird), which is well-known in mammals for its association with threat, defense and escape evoked by strange and frightening objects (amygdala-diencephalic periventricular system-central mesencephalic grey, A-DPS-CMG) is stimuli via the 2 ICo (subcollicular area). Two different mechanisms may be involved caudal to the ICo. One consists of tectal afferents which might modulate the evocation of targetting, pecking and other responses via the tectum. The other is the predorsal system of tectal efferents which may mediate such responses. Classical syndromes of tameness and unresponsiveness produced by various interruptions of the A-DPS-CMG route may depend on interruption of connections to these midbrain mechanisms. Attack is depressed by ICo lesions as one aspect of reduced responsiveness to conspicuous and startling visual stimuli. Avoidance, which is apparently mediated by a separate system, much as in Anura, is facilitated.
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ISSN 0006-8977 ISBN Medium
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Notes (down) PMID:1169102 Approved no
Call Number Equine Behaviour @ team @ Serial 4626
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Author BACK DG et al,
Title Observations on the sexual behaviour of nonlactating mares Type Journal Article
Year 1974 Publication Abbreviated Journal Amer Vet Med Ass J
Volume 165 Issue Pages 717-720
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Notes (down) from Professor Hans Klingels Equine Reference List Approved no
Call Number Serial 907
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Author Eisenmann V, G.D.C.
Title Caractères distinctifs des premières phalanges antérieures et postérieures chez certains équidés actuels et fossiles Type Journal Article
Year 1974 Publication Abbreviated Journal Bull Soc g?ol France
Volume 16 Issue Pages 352-361
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Notes (down) from Professor Hans Klingels Equine Reference List Approved no
Call Number Serial 1059
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Author Eisenmann V, G.D.C.
Title Caractères distinctifs entre vrais zèbres et zèbres de Chapman d`après l`étude de 60 têtes osseuses. Type Journal Article
Year 1974 Publication Abbreviated Journal Mammalia
Volume 38 Issue Pages 509-543
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Notes (down) from Professor Hans Klingels Equine Reference List Approved no
Call Number Serial 1060
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Author Estes Rd,
Title Zebras offer clues to the way wild horses once lived Type Journal Article
Year 1974 Publication Abbreviated Journal Smithsonian
Volume 5 Issue Pages 100-107
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Notes (down) from Professor Hans Klingels Equine Reference List Approved no
Call Number Serial 1075
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Author Frerichs Wm, H.
Title Treatment of equine piroplasmosis with imidocarb dipropionate Type Journal Article
Year 1974 Publication Abbreviated Journal Vet Rec
Volume 95 Issue Pages 188-189
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Notes (down) from Professor Hans Klingels Equine Reference List Approved no
Call Number Serial 1096
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Author Joubert E,
Title Composition and limiting factors of a Khomas Hochland population of Hartmann zebra Type Journal Article
Year 1974 Publication Abbreviated Journal Madoqua
Volume 8 Issue Pages 49-53
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Notes (down) from Professor Hans Klingels Equine Reference List Approved no
Call Number Serial 1228
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Author Joubert E,
Title Notes on the reproduction in Hartmann zebra in South West Africa Type Journal Article
Year 1974 Publication Abbreviated Journal Madoqua
Volume 1 Issue 8 Pages 31-35
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Notes (down) from Professor Hans Klingels Equine Reference List Approved no
Call Number Serial 1229
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Author Joubert E,; atal,
Title development of the Hartmann zebra Type Journal Article
Year 1974 Publication Abbreviated Journal Madoqua
Volume 8 Issue Pages 55-58
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Notes (down) from Professor Hans Klingels Equine Reference List Approved no
Call Number Serial 1230
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Author Klingel H,
Title A comparison of the Social Behaviour of the Equidae. in Geist V & Walther FR (eds): The Behaviour of Ungulates and its Relation to Management Type Journal Article
Year 1974 Publication Abbreviated Journal IUCN Publ
Volume Issue Pages 124-132
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Notes (down) from Professor Hans Klingels Equine Reference List Approved no
Call Number Serial 1302
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