Vision and Photoreceptors Notes

Flashcards covering the lens, photoreceptors, fovea, peripheral vision, and simultaneous sensory processing based on lecture notes.

What part of the eye changes shape to bring objects into focus?

The lens (which changes shape to focus light onto the retina).

What are the two kinds of photoreceptors in the eye?

Cones and rods.

Where are cones clustered in the retina?

Around the fovea, the central point of focus.

In low light, which photoreceptors provide vision and what kind of vision is produced?

Rods provide black, white, and gray (grayscale) vision.

What is the central point of focus in the retina called?

The fovea.

What aspect of vision is tested when you focus on a black dot in the periphery after viewing a picture?

Peripheral vision.

How does the brain process incoming sensory information?

All incoming sensory information is processed at the same time.

What is the role of the lens in vision?

To change its shape to focus light onto the retina.