10_Unit2-2.5_Vision copy

Responsible for detecting movement and contrast rods

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: sensitive, for vision when light is dim (scotopic vision). Responsible for detecting movement and contrast. rods--(scotopic vision) --for dim light •  Cones – needs strong light, for vision when light is good (photopic vision). Responsible for detecting color and fine features (higher spatial resolution - acuity) Photoreceptors know that light hits the rods and cones and eventually go to the ganglion cells then go to optic nerve!!! many actions potentials go to these retinal ganglion cells then it goes to the optoic nerve vision is a slow process as compared to somatosensation so know this--- the path of light information stimulus rods&cones----> ganglion cells----->optic nerve there is processing in the retina 3 ! know everything but--- optic radiations!!!!!!!!!!!!!!!!! Visual Pathways Visual Field Retina Optic Nerve Optic Chiasm Optic Tract Thalamus (LGN) Optic Radiations Primary Visual Cortex inverted at the retina!!!!!!!!!! Visual Pathways retina--inverted and flipped visual field Inverted top to bottom flipped left to right nueral magnification more nueral tissue is devote to a smaller area(the center) the fovea …at the retina Inverted, flipped and distorted (large fovea) …at the visual cortex Visual Cortex visual cortex-- inverted ...
View Full Document

This document was uploaded on 03/28/2014 for the course KNES 385 at Maryland.

Ask a homework question - tutors are online