<Tr> <Th> Function </Th> <Td> inhibitory or neuromodulatory interneurons </Td> </Tr> <Tr> <Th> Neurotransmitter </Th> <Td> gamma - Aminobutyric acid, glycine, DA, or 5 - HT </Td> </Tr> <Tr> <Th> Presynaptic connections </Th> <Td> Bipolar cells </Td> </Tr> <Tr> <Th> Postsynaptic connections </Th> <Td> Bipolar cells and Ganglion cells </Td> </Tr>

What is the function of the horizontal and amacrine cells in the retina