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Titolo:
How birds use their eyes: Opposite left-right specialization for the lateral and frontal visual hemifield in the domestic chick
Autore:
Vallortigara, G; Cozzutti, C; Tommasi, L; Rogers, LJ;
Indirizzi:
Univ Trieste, Dept Psychol, Anim Cognit & Comparat Neurosci Lab, Trieste, Italy Univ Trieste Trieste Italy gnit & Comparat Neurosci Lab, Trieste, Italy Ctr Neurosci, BRAIN, I-34123 Trieste, Italy Ctr Neurosci Trieste Italy I-34123 urosci, BRAIN, I-34123 Trieste, Italy Univ Padua, Dept Gen Psychol, I-35131 Padua, Italy Univ Padua Padua Italy I-35131 a, Dept Gen Psychol, I-35131 Padua, Italy Univ New England, Sch Biol Sci, Div Zool, Armidale, NSW 2351, Australia Univ New England Armidale NSW Australia 2351 rmidale, NSW 2351, Australia
Titolo Testata:
CURRENT BIOLOGY
fascicolo: 1, volume: 11, anno: 2001,
pagine: 29 - 33
SICI:
0960-9822(20010109)11:1<29:HBUTEO>2.0.ZU;2-#
Fonte:
ISI
Lingua:
ENG
Soggetto:
LIGHT EXPERIENCE; DETOUR BEHAVIOR; BRAIN; ASYMMETRIES; SYSTEM; PATHWAYS; NEURONS; ANOLIS; RETINA; FISH;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
27
Recensione:
Indirizzi per estratti:
Indirizzo: Vallortigara, G Univ Trieste, Dept Psychol, Anim Cognit & Comparat Neurosci Lab, Trieste, Italy Univ Trieste Trieste Italy Neurosci Lab, Trieste, Italy
Citazione:
G. Vallortigara et al., "How birds use their eyes: Opposite left-right specialization for the lateral and frontal visual hemifield in the domestic chick", CURR BIOL, 11(1), 2001, pp. 29-33

Abstract

Recent evidence has demonstrated that, in animals with laterally placed eyes, functional cerebral asymmetry is revealed by preferential use of eitherthe left or right eye in a range of behaviors (birds: [1, 2, 3]; fish: [4,5]; reptiles: [6, 7]). These findings pose a theoretical problem. It seemsthat there would be disadvantages in having a substantial degree of asymmetry in the use of the two eyes; a deficit on one side would leave the organism vulnerable to attack on that side or unable to exploit resources appearing on one side. We here report a possible solution to the problem. We havefound that domestic chicks show selective use of the lateral visual field of the left eye and of the right hemifield in the binocular, frontal visualfield when they peck at strangers but not at cagemates. Thus, during social recognition, there seems to be opposite and complementary left-right specialization for the lateral and frontal visual fields of the two eyes. Thesefindings can reconcile the computational advantages associated with asymmetry of the left and right sides of the brain with the ecological demands for an animal to perceive and respond equally well to the left and right sides of its midline.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 22/01/20 alle ore 18:43:15