Narrow-Field Amacrine Cells Mediate OFF Signals Between B2 Bipolar and Ganglion Cells in the Mouse Retina

  • Yoshihiko Tsukamoto
Conference paper
Part of the Keio University International Symposia for Life Sciences and Medicine book series (KEIO, volume 11)


A rod-cone mixed input type of OFF bipolar cell (B2) comprises the third rod signal pathway in the mouse retina [1]. The B2 cell receives cone input at basal contacts and also rod input at symmetrical contacts that express ionotropic glutamate receptors [2]. Only one fifth of all rod terminals have direct contacts with B2 cell dendrites, but such rod members gather signals from neighboring rods through rod-rod gap Junctions. This third pathway explains the rod responses that persist in OFF ganglion cells after blockage of the other pathways [3].

Key words

Mouse retina Amacrine cell Microcircuitry 


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Copyright information

© Springer-Verlag Tokyo 2003

Authors and Affiliations

  • Yoshihiko Tsukamoto
    • 1
  1. 1.Department of BiologyHyogo College of MedicineHyogoJapan

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