Comparison of the waveforms of the ON bipolar neuron and the b-wave of the electroretinogram.
The b-wave of the electroretinogram (ERG) is believed to result largely from the light responses of ON bipolar neurons. One apparent inconsistency is that the b-wave is a phasic signal, more similar to ON responses of transient third-order neurons than to the ON bipolar light responses. However, when selective glutamate agonists or antagonists were used to isolate the b-wave, it was found to be tonic and resemble the light response waveform of the ON bipolar cell.
Gurevich
L
L
Department of Biophysical Sciences, SUNY School of Medicine, Buffalo 14214.
Slaughter
M M
MM
D000557:Ambystoma; D000613:Aminobutyrates / Q000494:pharmacology; D000818:Animals; D004596:Electroretinography / Q000187:drug effects; D066298:In Vitro Techniques; D009474:Neurons / Q000502:physiology; D010775:Photic Stimulation; D012160:Retina / Q000502:physiology*
D000613:Aminobutyrates; C012729:2-amino-4-phosphonobutyric acid