lecture06 visual perception

lecture06 visual perception - Lecture 6: Visual Perception...

Info iconThis preview shows pages 1–9. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

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

Unformatted text preview: Lecture 6: Visual Perception Psych 123 Cognitive Neuroscience Visual System optic tract optic chiasm thalamus visual cortex Visual Pathway Visual Pathway 1) Energy containing information about stimulus must reach the eye. 2) Rod & cones in retina transduce energy into neural response. 3) Optic nerve transfers neural response to retinotopically-organized thalamus. 4) Thalamus relays the neural response to V1 in the visual cortex. 5) Hierarchically-organized visual cortex transforms neural code into a perception. Transduction Photoreceptors rod cone interneuron dendrites axon cell body (photopigments) dendrite • very sensitive to light, but fuzzy on details • numerous, found throughout retina • not as sensitive to light, but much Fner details • found mostly in and around the fovea • detects color, 3 types: red, blue, & green transduction : Light is absorbed by photopigments and breaks down the chemical rhodopsin leading to a neural signal to the brain. Coding Quantity e.g., brightness, loudnesse....
View Full Document

This note was uploaded on 09/09/2011 for the course PSY 123 taught by Professor Staff during the Spring '11 term at UCSB.

Page1 / 27

lecture06 visual perception - Lecture 6: Visual Perception...

This preview shows document pages 1 - 9. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online