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Titolo:
Structure-function correlation in transient amacrine cells of goldfish retina: Basic and multifractal analyses of dendritic trees in distinct synaptic layers
Autore:
Djamgoz, MBA; Krasowska, M; Martinoli, O; Sericano, M; Vallerga, S; Grzywna, ZJ;
Indirizzi:
Silesian Tech Univ, Dept Phys Chem & Polymer Technol, Sect Phys Math & Comp Sci, PL-44100 Gliwice, Poland Silesian Tech Univ Gliwice Poland PL-44100 Sci, PL-44100 Gliwice, Poland CNR, Inst Cybernet & Biophys, Genoa, Italy CNR Genoa ItalyCNR, Inst Cybernet & Biophys, Genoa, Italy CNR, Sect Sensory Ecol, Int Marine Ctr, Oristano, Italy CNR Oristano Italy , Sect Sensory Ecol, Int Marine Ctr, Oristano, Italy
Titolo Testata:
JOURNAL OF NEUROSCIENCE RESEARCH
fascicolo: 6, volume: 66, anno: 2001,
pagine: 1208 - 1216
SICI:
0360-4012(200112)66:6<1208:SCITAC>2.0.ZU;2-8
Fonte:
ISI
Lingua:
ENG
Soggetto:
CARP RETINA; NEURONS; ARCHITECTURE; RESPONSES; BIPOLAR; FIELD; FISH;
Keywords:
retina; amacrine cell; inner plexiform layer; dendritic field; multifractal analysis; goldfish;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
42
Recensione:
Indirizzi per estratti:
Indirizzo: Grzywna, ZJ Silesian Tech Univ, Dept Phys Chem & Polymer Technol, Sect Phys Math & Comp Sci, Strzody 9, PL-44100 Gliwice, Poland Silesian Tech Univ Strzody 9 Gliwice Poland PL-44100 , Poland
Citazione:
M.B.A. Djamgoz et al., "Structure-function correlation in transient amacrine cells of goldfish retina: Basic and multifractal analyses of dendritic trees in distinct synaptic layers", J NEUROSC R, 66(6), 2001, pp. 1208-1216

Abstract

Amacrine cells generating light-evoked transient ON-OFF responses were stained by intracellular injection of horseradish peroxidase after determiningtheir input-output (voltage response vs. light intensity) profiles. Ten cells specifically having bistratified dendritic trees were analyzed. The cross-sectional area of the dendrites in each sublamina (a and b) of the innerplexiform layer was initially measured. Although some variability was observed, there was no statistically significant overall difference in the cross-sectional areas of the dendritic trees in sublaminae a and b. Also, the amplitudes of the ON and OFF responses, generated by a midrange criterion stimulus, could not be correlated with the cross-sectional areas or the number of branches of the dendrites in sublaminae b and a, respectively. On the other hand, determination of the generalized fractal spectra revealed that the negative (up to -3) and zero-order fractal dimensions of the dendritic trees in sublamina a were consistently higher than those for sublamina b. Furthermore, there was a positive correlation between response amplitude andsome part of the generalized fractal dimension in the respective parts of the dendritic trees. It is concluded that dendritic tree characteristics differ in the two halves of the inner plexiform layer and that these can be related to the cells' light-evoked response amplitudes. Furthermore, generalized fractal analysis appears to be a useful method for correlating structure and function in retinal amacrine cells with complex dendritic trees. (C)2001 Wiley-Liss, Inc.

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Documento generato il 10/07/20 alle ore 12:14:25