Astronomy 2021A/B Chapter Notes - Chapter 5: Lateral Geniculate Nucleus, Visual Agnosia, Saccade

• School: Western University
• Department: Astronomy
• Course: Astronomy 2021A/B
• Professor: Martin Zinke- Allmang

Document Summary

Amount of light reaching the retinas regulated by the irises (colored part) Sensitivity: the ability to detect the presence of dimly lit objects. Acuity: the ability to see the details of objects. Accommodation: the process of adjusting the configuration of the lenses to bring. Lens: focuses incoming light on the retina images into focus on the retina. Binocular disparity: the difference in the position of the same image on the two retinas. Greater for close objects than distant objects. Visual system uses the degree of binocular disparity to construct one three-dimensional perception from two two-dimensional retinal images. The retina and translation of light into neural signs. Retina composed of five layers of different types of neurons: Receptors, horizontal cells, bipolar cells, amacrine cells, retinal ganglion cells. Blind spot: gap in the receptor layer required for the bundle of retinal ganglion cell axons to leave the eye.