Abstract
Directionally sensitive ganglion cells in rabbit retina lose their directional sensitivity when picrotoxin, an antagonist of the inhibitory neurotransmitter gamma-aminobutyric acid, is infused into the retinal blood supply. Strychnine, an antagonist of glycine, does not produce this effect. Other receptive field types are affected by strychnine but not picrotoxin. Inhibitory transmitters therefore have specific functions in information processing in the retina.
MeSH terms
-
Animals
-
GABA Antagonists
-
Ganglia / cytology
-
Ganglia / drug effects
-
Ganglia / metabolism
-
Glycine / antagonists & inhibitors
-
Glycine / metabolism
-
Neurotransmitter Agents / antagonists & inhibitors*
-
Picrotoxin / pharmacology
-
Rabbits
-
Retina / cytology
-
Retina / drug effects*
-
Retina / metabolism
-
Strychnine / pharmacology
-
gamma-Aminobutyric Acid / metabolism
Substances
-
GABA Antagonists
-
Neurotransmitter Agents
-
Picrotoxin
-
gamma-Aminobutyric Acid
-
Strychnine
-
Glycine