The circadian component of spinule dynamics in teleost retinal horizontal cells is dependent on the dopaminergic system.

@article{Wagner1992TheCC,
  title={The circadian component of spinule dynamics in teleost retinal horizontal cells is dependent on the dopaminergic system.},
  author={Hans-Joachim Wagner and Uwe Behrens and M Zaunreiter and Ronald H. Douglas},
  journal={Visual neuroscience},
  year={1992},
  volume={9 3-4},
  pages={345-51}
}
During the light phase of a light/dark cycle, dendrites of teleost cone horizontal cells display numerous finger-like projections, called spinules, which are formed at dawn and degraded at dusk, and are thought to be involved in chromatic feedback processes. We have studied the oscillations of these spinules during a normal light/dark cycle and during 48 h of constant darkness in two groups of strongly rhythmic, diurnal fish, Aequidens pulcher. In one group the retinal dopaminergic system had… CONTINUE READING