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Titolo:
RESPONSES OF THE GOLDFISH TRUNK LATERAL-LINE TO MOVING-OBJECTS
Autore:
MOGDANS J; BLECKMANN H;
Indirizzi:
UNIV BONN,INST ZOOL,POPPELSDORFER SCHLOSS D-53115 BONN GERMANY
Titolo Testata:
Journal of comparative physiology. A, Sensory, neural, and behavioral physiology
fascicolo: 5, volume: 182, anno: 1998,
pagine: 659 - 676
SICI:
0340-7594(1998)182:5<659:ROTGTL>2.0.ZU;2-2
Fonte:
ISI
Lingua:
ENG
Soggetto:
MOTTLED SCULPIN; COTTUS-BAIRDI; SOURCE LOCALIZATION; CARASSIUS-AURATUS; FISH; SYSTEM; DISCRIMINATION; SENSITIVITY; DIRECTION; PATTERNS;
Keywords:
MECHANORECEPTION; NEUROMAST; HYDRODYNAMICS; WATER MOVEMENTS; TELEOST FISH;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
33
Recensione:
Indirizzi per estratti:
Citazione:
J. Mogdans e H. Bleckmann, "RESPONSES OF THE GOLDFISH TRUNK LATERAL-LINE TO MOVING-OBJECTS", Journal of comparative physiology. A, Sensory, neural, and behavioral physiology, 182(5), 1998, pp. 659-676

Abstract

We recorded the responses of single afferent fibers in the posterior lateral-line nerve of the goldfish, Carassius auratus, to a small object moving in the water. Responses consisted of a dominant and reproducible pattern of discharge which was characterized by excitation followed by inhibition or vice versa. The pattern depended on the direction in which the object moved and was inverse when the direction was reversed. About half of the fibers continued to discharge bursts of spikes for a long time after the object had passed the fish. These spike bursts were not reproducible from one stimulus presentation to the next. In many fibers, the pattern of the response changed with speed and lateral distance of the moving object. Response strength increased with increasing object speed and decreasing lateral distance. Measurements ofwater motions revealed that the object generated complex water movements, aspects of which were reflected in the discharges of primary lateral-line afferents. The observed uniformity of the responses in the periphery suggests that many, but not all, of the response patterns of central lateral-line units to moving objects are due to additional information processing by the central nervous system and not to peripheralhydrodynamic effects.

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Documento generato il 24/09/20 alle ore 07:54:15