Neurotransmitters in Visual Processing
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Neurotransmitters in Visual Processing
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Episode 57 - Neurotransmitters in Visual Processing
Hi, I'm Dr Thomas Whitelaw, welcome back to Basic Sciences in Ophthalmology.
In today’s episode, we’re moving from the optics of image formation into the neural language used by the retina itself.
Before an image ever reaches the optic nerve, the retinahas already performed an extraordinary amount of processing. Light is captured by photoreceptors, converted into an electrical signal, passed through several layers of retinal neurons and modified by lateral connections before ganglion cells finally transmit the processed information towards the brain.
At the centre of this process are neurotransmitters:chemical messengers that allow retinal neurons to communicate across synapses.
Today's episode is divided into three sections:
First: neurotransmitters in the retina.
Second: signal modulation.
And third: synaptic pathways.