Double Cone Photoreceptor

Use the work of Ed Pugh's lab on the Sunfish as a starting place for information on this photoreceptor.

• Postsynaptic connections (Input)
  • Light
    • The cone is a photoreceptor, so its main source of input is the transduction of light.

• Presynaptic connections (Output)
  • Cell type
    • Specifics
  • Cell type
    • Specifics
  • Cell type
    • Specifics

• Function
  • Light transduction.... it looks like the wave-guide properties of the double cone makes the receptor selectively sensitive to certain light polarities.
  • In some amphibians, one cone of the pair may be extended or retracted as a function of light adaptation.

• Morphology
  • ~ 5 microns diameteer
  • ~35 microns long

• Array characteristics

• Compartmental Model Characteristics

• Location

• Synapse types

• Synapse Receptors

• Neurotransmitters

• Immunoreactivity

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