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Commissural connections electrophysiologically identifled between tectum and nucleus isthmi in toads

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Chinese Science Bulletin 1995年第4期40卷 334-339页

作者：吴刚义王书荣 Laboratory for Visual Information Processing Institute of Biophysics Chinese Academy of SciencesBeijing 100101 China

It has been established that the nucleus isthmi (NI) in lower vertebrates and its mammalian analogue, the nucleus parabigeminalis, receive input from the ipsilateral tectum and project back ipsilaterally in teleosts and birds, or bilaterally in amphibians, reptiles and *** nucleus receives visual excitation from the ipsilateral tectum. while it mainly exerts inhibition on cells recorded from the ipsilateral tectum. A recent study by Wang and coworkers shows that the nucleus isthmi pars magnoceUularis (Imc) and

关键词： tectum nucleus isthmi commissure electrical stimulation postsynaptic potential toad.

A PUTATIVE TRANSMITTER IN THE AVIAN NUCLEUS isthmi

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Chinese Science Bulletin 1988年第24期33卷 2067-2070页

作者：李铮 RON STOOE 许红艳王书荣 Institute of Biophysics Academia Sinica Beijing Student Department of Medical Physics and Biophysics University of Nymegen the Netherlands.

The previous studies showed that the two divisions of the avian nucleus isthmi, magnocellular part Imc and parvocellular part Ipc, are all visual centers, and that both parts and their cell bodies are heavily stained ... 详细信息

关键词： acetylcholine atropine nucleus isthmi pigeon vision

RECIPROCALLY TOPOGRAPHIC PROJECTIONS BETWEEN THE OPTIC TECTUM AND NUCLEUS isthmi IN THE TOAD

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Chinese Science Bulletin 1983年第1期28卷 139-140页

作者：王荫亭颜坤王书荣 Institute of Biophysics Academia Sinica Beijing

Postsynaptic Potentials and Morphological Features of Tectal Cells in Homing Pigeons

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Science China Chemistry 1993年第3期36卷 297-304页

作者：吴冈义王书荣颜坤 Laboratory for Visual Information Processing Institute of Biophysics Academia Sinica Beijing 100101 PRC

In this study postsynaptic potentials responding to the electrical stimulation of the optic nerve and the nucleus isthmipars parvocellularis (Ipc) were intracellularly recorded from 86 tectal cells in pigeons, 13 of which were marked with Lucifer yellow (LY). According to types of postsynaptic potentials and their succesion, the postsynaptic responses could be classified into four types: excitatory postsynaptic potential (EPSP)-inhibitory postsynaptic potential (IPSP) sequence (EI type), E, I and IE *** them, E or EI responses were mainly produced to the optic nerve stimulation, while the electrical stimulation of the lpc elicited I responses in more than half the recorded ***-marked tectal cells included five ganglionic cells, four pyramidal cells, two bipolar cells and two stellate *** ganglionic cells were mainly located in tectal layers Ⅲ and Ⅳ, whereas the others were in layer Ⅱ.It appears from both intracellular recordings and fluorescent markings that there is some correlation betwe n the morphological features and the postsynaptic response types of tectal cells.

关键词： homing pigeon nucleus isthmi tectum postsynaptie potentials electrical stimulation fluorescent marking.