Synaptic connection patterns between frog retinal ganglion cells and tectal neurons revealed by whole-cell recordings in vivo.
The synaptic connections between frog retinal ganglion cells and tectal neurons were examined by whole-cell recordings in vivo combined with nystatin perforated patch-clamp technique and pulse-triggered averaging analysis. In five tectal neurons, monosynaptic EPSPs from seven R3 retinal ganglion cells were observed. One tectal neuron was found to receive EPSPs from both R1/2 and R3 retinal ganglion cell simultaneously. Thus we could provide the first evidence for convergence of multiple types of retinal axons upon a single tectal neuron.
Nakagawa
H
H
Department of Biochemical Engineering and Science, Faculty of Computer Science and Systems Engineering, Kyushu Institute of Technology, Fukuoka, Japan.
Kikkawa
S
S
Matsumoto
N
N
D000818:Animals; D004558:Electric Stimulation; D004594:Electrophysiology / Q000379:methods; D009434:Neural Pathways / Q000502:physiology; D009474:Neurons / Q000502:physiology*; D010775:Photic Stimulation; D011892:Rana catesbeiana; D012165:Retinal Ganglion Cells / Q000145:classification / Q000502:physiology*; D013477:Superior Colliculi / Q000166:cytology / Q000502:physiology*; D013569:Synapses / Q000502:physiology*