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Titolo:
Visual interneurons of the crab Chasmagnathus studied by intracellular recordings in vivo
Autore:
de Astrada, MB; Sztarker, J; Tomsic, D;
Indirizzi:
Univ Buenos Aires, Dept Biol, Lab Neurobiol Memoria, RA-1428 Buenos Aires,DF, Argentina Univ Buenos Aires Buenos Aires DF Argentina RA-1428 s Aires,DF, Argentina
Titolo Testata:
JOURNAL OF COMPARATIVE PHYSIOLOGY A-SENSORY NEURAL AND BEHAVIORAL PHYSIOLOGY
fascicolo: 1, volume: 187, anno: 2001,
pagine: 37 - 44
SICI:
0340-7594(200102)187:1<37:VIOTCC>2.0.ZU;2-I
Fonte:
ISI
Lingua:
ENG
Soggetto:
LONG-TERM HABITUATION; CRAYFISH LAMINA GANGLIONARIS; FLOW-FIELD ANALYSIS; FUNCTIONAL-ORGANIZATION; DANGER STIMULUS; FIDDLER-CRABS; OPTIC LOBE; EYE; CELLS; NEURONS;
Keywords:
visual interneurons; Crustacea; in vivo intracellular recording;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
52
Recensione:
Indirizzi per estratti:
Indirizzo: Tomsic, D Univ Buenos Aires, Dept Biol, Lab Neurobiol Memoria, Pabellon 2,Ciudad Univ, RA-1428 Buenos Aires, DF, Argentina Univ Buenos Aires Pabellon2,Ciudad Univ Buenos Aires DF Argentina RA-1428
Citazione:
M.B. de Astrada et al., "Visual interneurons of the crab Chasmagnathus studied by intracellular recordings in vivo", J COMP PH A, 187(1), 2001, pp. 37-44

Abstract

Comparative physiology of visual systems has become an important field of investigation. However, despite the fact that Crustacea represents a major phylogenetic group, research on the physiology of vision of these animals is scant and almost limited to the crayfish. We developed a preparation to study in vivo the Visual nervous system of a semiterrestrial crab through intracellular recordings. The response to a pulse of light was investigated in 206 interneurons from 38 animals. Seventy-eight of these neurons could beclassified by functional criteria as sustaining cells, dimming cells, nonspiking hyperpolarizing cells and nonspiking depolarizing cells. Quantitative description is provided for the first two groups and qualitative description is given for the last two. The remaining neurons presented a broad range of different types of phasic responses to light. Although semiterrestrialcrabs are behaviorally more reactive to visual stimuli than the crayfish, the general physiological properties of identified lamina and medullary neurons of Chasmagnathus resemble those of the crayfish. The results describedhere represent the first attempt to study the visual system of crabs with intracellular recordings and constitute the beginning of a project aimed toinvestigate the neuronal functions underlying behavioral responses elicited by visual stimuli.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 26/01/20 alle ore 16:12:57