z-logo
Premium
Pikeperch horizontal cells identified by intracellular staining
Author(s) -
Hassin Guido
Publication year - 1979
Publication title -
journal of comparative neurology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.855
H-Index - 209
eISSN - 1096-9861
pISSN - 0021-9967
DOI - 10.1002/cne.901860403
Subject(s) - depolarization , biology , staining , biophysics , receptive field , pipette , stain , anatomy , chemistry , neuroscience , genetics
Micropipettes filled with Procion yellow dye were used to record from and to stain pikeperch horizontal cells intracellularly. Three major types were found: a distal layer (H1) of relatively small cells which were luminosity or L‐type; a second and more proximal layer of larger L‐type cells (H2); and a third and yet more proximal layer of very stellate chromatic or C‐type cells (H3). A few anucleate processes which displayed slow‐potentials were found in the proximal area of the inner nuclear layer. Cells of each of the three layers were shown to be cone related by both anatomical and physiological methods. L‐type cells were further categorized by the area over which each exhibited spatial summation and the relative sensitivity of each to red and green lights. Receptive field sizes of H2's were found to range from less than 2 mm to greater than 5 mm in diameter, whereas those of the few H1's tested were all less than 2 mm. Results from spectral screening tests indicate that most H1 and H2 cells are maximally sensitve to orange light, whereas the H3 cells hyperpolarize maximally to green and depolarize maximally to red. A small percentage of sampled C‐cells displayed an additional depolarization to violet.

This content is not available in your region!

Continue researching here.

Having issues? You can contact us here