Podcast
Questions and Answers
What is the primary site of visual information processing?
What is the primary site of visual information processing?
- Cornea
- Retina (correct)
- Optic nerve
- Brain
What happens to the release of glutamate from rods and cones when light strikes them?
What happens to the release of glutamate from rods and cones when light strikes them?
- It stops altogether
- It decreases (correct)
- It remains the same
- It increases
What is the role of horizontal cells in the retina?
What is the role of horizontal cells in the retina?
- To convert light into electrical signals
- To carry signals from one rod or cone to other photoreceptors and to several bipolar cells (correct)
- To amplify the signal from a single rod or cone
- To transmit signals directly to the brain
What is the result of lateral inhibition in visual processing?
What is the result of lateral inhibition in visual processing?
Where else does lateral inhibition occur in addition to the retina?
Where else does lateral inhibition occur in addition to the retina?
What kind of synapses do rods and cones form with bipolar cells?
What kind of synapses do rods and cones form with bipolar cells?
What triggers a change in the membrane potential of bipolar cells?
What triggers a change in the membrane potential of bipolar cells?
What is the function of horizontal cells in the retina?
What is the function of horizontal cells in the retina?
What is the effect of light on the release of glutamate from rods and cones?
What is the effect of light on the release of glutamate from rods and cones?
What is the purpose of multiple pathways in the retina for processing visual information?
What is the purpose of multiple pathways in the retina for processing visual information?
What is the effect of lateral inhibition on the image?
What is the effect of lateral inhibition on the image?
What is the role of bipolar cells in the retina?
What is the role of bipolar cells in the retina?
What is the state of rods and cones in the dark?
What is the state of rods and cones in the dark?
What is the result of the decrease in glutamate release from rods and cones?
What is the result of the decrease in glutamate release from rods and cones?
What is the significance of multiple pathways in the retina for visual processing?
What is the significance of multiple pathways in the retina for visual processing?
What is the result of a smaller receptive field?
What is the result of a smaller receptive field?
What is the receptive field defined by?
What is the receptive field defined by?
What is the effect of having fewer rods or cones supplying a single ganglion cell?
What is the effect of having fewer rods or cones supplying a single ganglion cell?
Which part of the visual field is defined by the receptive field?
Which part of the visual field is defined by the receptive field?
What is the advantage of a ganglion cell receiving information from fewer rods and cones?
What is the advantage of a ganglion cell receiving information from fewer rods and cones?
