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Titolo:
Responses of midbrain lateral line units of the goldfish, Carassius auratus to constant-amplitude and amplitude-modulated water wave stimuli
Autore:
Plachta, D; Mogdans, J; Bleckmann, H;
Indirizzi:
Univ Bonn, Inst Zool, D-53115 Bonn, Germany Univ Bonn Bonn Germany D-53115 iv Bonn, Inst Zool, D-53115 Bonn, Germany
Titolo Testata:
JOURNAL OF COMPARATIVE PHYSIOLOGY A-SENSORY NEURAL AND BEHAVIORAL PHYSIOLOGY
fascicolo: 5, volume: 185, anno: 1999,
pagine: 405 - 417
SICI:
0340-7594(199911)185:5<405:ROMLLU>2.0.ZU;2-P
Fonte:
ISI
Lingua:
ENG
Soggetto:
FISH APLOCHEILUS-LINEATUS; MOTTLED SCULPIN; NEUROPHYSIOLOGICAL ASSESSMENT; AUDITORY MIDBRAIN; ELECTRIC FISH; COTTUS-BAIRDI; SYSTEM; FREQUENCY; SENSITIVITY; DISCRIMINATION;
Keywords:
mechanoreception; hydrodynamic; dipole; neuromast; torus semicircularis;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
53
Recensione:
Indirizzi per estratti:
Indirizzo: Bleckmann, H Univ Bonn, Inst Zool, Poppelsdorfer Schloss, D-53115 Bonn, Germany Univ Bonn Poppelsdorfer Schloss Bonn Germany D-53115 Germany
Citazione:
D. Plachta et al., "Responses of midbrain lateral line units of the goldfish, Carassius auratus to constant-amplitude and amplitude-modulated water wave stimuli", J COMP PH A, 185(5), 1999, pp. 405-417

Abstract

Responses of mechanosensory lateral line units to constant-amplitude hydrodynamic stimuli and to sinusoidally amplitude-modulated water movements were recorded from the goldfish (Carassius auratus) torus semicircularis. Responses were classified by the number of spikes evoked in the unit's dynamic range and by the degree of phase locking to the carrier- and amplitude-modulation frequency of the stimulus. Most midbrain units showed phasic responses to constant-amplitude hydrodynamic stimuli. For different units peri-stimulus time histograms varied widely. Based on iso-displacement curves, midbrain units prefered either low frequencies (less than or equal to 33 Hz), mid frequencies (50-100 Hz), or high frequencies (greater than or equal to 200 Hz). The distribution of the coefficient of synchronization to constant-amplitude stimuli showed that most units were only weakly phase locked. Midbrain units of the goldfish responded to amplitude-modulated water motions in a phasic/tonic or tonic fashion. Units highly phase locked to the amplitude modulation frequency, provided that modulation depth was at least 36%. Units tuned to one particular amplitude modulation frequency were not found.

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Documento generato il 26/09/20 alle ore 05:20:32