Psych312_Week3Lecture1_Anatomy&Physiology.pdf

Psych312_Week3Lecture1_Anatomy&Physiology.pdf - Anatomy...

Info icon This preview shows pages 1–10. Sign up to view the full content.

Anatomy and Physiology of Vision (continued)
Image of page 1

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

Outline Spatial sensitivity Dark adaptation Electrophysiology of vision Pathways out of the retina
Image of page 2
Spatial sensitivity (acuity) Definition: Sensitivity to spatial changes in brightness Landolt C (What is the smallest detectable gap?)
Image of page 3

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

Spatial sensitivity (acuity) Snellen chart: What’s the smallest detectable letter?
Image of page 4
Spatial sensitivity (acuity) 20/20 vision Snellen fraction Normal spatial acuity measured at 20 feet 20/100 vision At 20 feet, spatial acuity is the same as someone with normal vision at 100 feet
Image of page 5

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

Acuity test Foveal versus peripheral acuity Letters vs. numbers Male vs. female faces
Image of page 6
Spatial sensitivity (acuity) Why is acuity so much better in the fovea?
Image of page 7

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

Spatial sensitivity (acuity) Visual angle: Angle of an object relative to the observer’s eye Used to specify retinal size and retinal location 30 ° 30 ° 15 ° 15 °
Image of page 8
Spatial sensitivity (acuity) Visual angle: Angle of an object relative to the observer’s eye Used to specify retinal size and retinal location 20 ° 10 ° 0 ° 0 ° 10 ° 20 °
Image of page 9

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

Image of page 10
This is the end of the preview. Sign up to access the rest of the document.
  • Spring '08
  • Armstrong
  • dark adaptation, Spatial sensitivity, rod photopigment

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern