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Titolo:
INTEGRATION OF HYDRODYNAMIC INFORMATION IN THE HINDBRAIN OF FISHES
Autore:
BLECKMANN H; MOGDANS J; FLECK A;
Indirizzi:
UNIV BONN,INST ZOOL,POPPELSDORFER SCHLOSS D-53115 BONN GERMANY
Titolo Testata:
Marine and freshwater behaviour and physiology
fascicolo: 2-3, volume: 27, anno: 1996,
pagine: 77 - 94
SICI:
1023-6244(1996)27:2-3<77:IOHIIT>2.0.ZU;2-F
Fonte:
ISI
Lingua:
ENG
Soggetto:
LATERAL-LINE SYSTEM; WEAKLY ELECTRIC FISH; APTERONOTUS-ALBIFRONS; MOVING-OBJECTS; THORNBACK RAY; MORPHOLOGY; SENSITIVITY; INNERVATION; PATHWAYS; UNITS;
Keywords:
LATERAL LINE; TELEOST FISH; CATFISH; GOLDFISH; MEDULLA;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
46
Recensione:
Indirizzi per estratti:
Citazione:
H. Bleckmann et al., "INTEGRATION OF HYDRODYNAMIC INFORMATION IN THE HINDBRAIN OF FISHES", Marine and freshwater behaviour and physiology, 27(2-3), 1996, pp. 77-94

Abstract

Fishes detect weak water movements generated by a predator or by preywith the aid of the mechanosensory lateral line. In this study, we investigated the way information received by the lateral line is processed by neurons in the hindbrain of two fish species, the bottom dwelling catfish, Ancistrus sp., and the goldfish, Carassius auratus. We stimulated the lateral line with a small object moving in the water and recorded the responses of single units in the medulla. Medullary lateralline units increased their discharge rate when the moving object passed the fish. At least three different response types could be distinguished on the basis of response patterns. In some units, the response pattern differed for different motion directions, indicating that theseunits were sensitive for the direction of object motion. In general, discharge rates decreased both when object speed decreased or when object distance increased. The results suggest that in the hindbrain of fishes different neuron populations maybe responsible for the processing of different aspects of hydrodynamic stimuli.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 28/09/20 alle ore 05:05:02