2006
DOI: 10.1017/s0952523806230037
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Current source density analysis of contra- and ipsilateral isthmotectal connections of the frog

Abstract: The nucleus isthmi (NI) of the frog receives input from the ipsilateral optic tectum and projects back to both optic tecta. After ablation of NI, frogs display no visually elicited prey-catching or threat avoidance behavior. Neural mechanisms that underlie the loss of such important behavior have not been solved. Electrophysiological examination of the contralateral isthmotectal projection has proved that it contributes to binocular vision. On the other hand, there are very few physiological investigations of … Show more

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(1 citation statement)
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“…In addition, the NI has been shown to possess a population of GABA-containing neurons that project to the OT (Li and Fite 2001). This may account for the dual modulation of tectal cells observed when the NI is electrically stimulated (Hoshina et al 2006; Xiao and Wang 1999). The homogeneity that we observed in both intracellular and extracellular recordings suggests two possible interpretations.…”
Section: Discussionmentioning
confidence: 99%
“…In addition, the NI has been shown to possess a population of GABA-containing neurons that project to the OT (Li and Fite 2001). This may account for the dual modulation of tectal cells observed when the NI is electrically stimulated (Hoshina et al 2006; Xiao and Wang 1999). The homogeneity that we observed in both intracellular and extracellular recordings suggests two possible interpretations.…”
Section: Discussionmentioning
confidence: 99%