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Titolo:
Behavioral discrimination of water motions caused by moving objects
Autore:
Vogel, D; Bleckmann, H;
Indirizzi:
Univ Bonn, Inst Zool Rhein, D-53115 Bonn, Germany Univ Bonn Bonn GermanyD-53115 n, Inst Zool Rhein, D-53115 Bonn, Germany
Titolo Testata:
JOURNAL OF COMPARATIVE PHYSIOLOGY A-SENSORY NEURAL AND BEHAVIORAL PHYSIOLOGY
fascicolo: 12, volume: 186, anno: 2000,
pagine: 1107 - 1117
SICI:
0340-7594(2000)186:12<1107:BDOWMC>2.0.ZU;2-K
Fonte:
ISI
Lingua:
ENG
Soggetto:
LATERAL-LINE SYSTEM; ANOPTICHTHYS-JORDANI CHARACIDAE; GOLDFISH CARASSIUS-AURATUS; MOTTLED SCULPIN; CAVE FISH; LEVEL DISCRIMINATION; SOURCE LOCALIZATION; XENOPUS-LAEVIS; COTTUS-BAIRDI; HAIR-CELLS;
Keywords:
Carassius; lateral line; sensory physiology; behavior; object detection;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
48
Recensione:
Indirizzi per estratti:
Indirizzo: Bleckmann, H Univ Bonn, Inst Zool Rhein, Poppelsdorfer Schloss, D-53115 Bonn, Germany Univ Bonn Poppelsdorfer Schloss Bonn Germany D-53115 Germany
Citazione:
D. Vogel e H. Bleckmann, "Behavioral discrimination of water motions caused by moving objects", J COMP PH A, 186(12), 2000, pp. 1107-1117

Abstract

We tested whether goldfish, Carassius auratus, discriminate hydrodynamic stimuli caused by moving objects. Blindfolded goldfish responded to a passing object with changes in inter-gill-movement intervals. To learn whether goldfish can discriminate water motions caused by different moving objects wehabituated them to a certain object stimulus. If the stimulus was altered.e.g., by altering speed, direction of motion, or size or shape of the object, fish again showed a temporary suspension of breathing when the object passed by. If animals failed to respond to an altered stimulus. we paired this stimulus with a weak electric shock during training. Goldfish discriminated object motion direction. In addition, in two choice experiments goldfish discriminated water motions caused by objects which moved with different speeds (e.g.. 5 cm s(-1) versus 6 cm s(-1)), or by objects which differed in size (e.g.. 1 cm x 1 cm versus 1.4 cm x 1.4 cm cross section), or shape (e.g., a round versus a triangular object). If object size and;or shape was varied quasi-randomly such that the faster moving object not always caused the greatest water velocities, fish still discriminated object speed.

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Documento generato il 01/04/20 alle ore 01:13:14