4.17 Depth Perception and the Dorsal Stream

Flashcards covering key concepts related to depth perception and the dorsal stream, highlighting binocular and monocular cues, as well as relevant case studies.

What is depth perception?

The ability to determine the distance of objects from ourselves.

What are the two types of depth cues?

Binocular cues and monocular cues.

What does binocular refer to in depth perception?

The use of both eyes at the same time.

What is an example of a binocular depth cue?

Convergence, which is when our eyes turn inward to look at nearby objects.

What is convergence in terms of eye movement?

The inward turning of the eyes to focus on a close object.

What is retinal disparity?

The comparison made by our brain between slightly different images from each eye.

How does retinal disparity contribute to depth perception?

It creates a sense of stereopsis, giving us a sense of depth.

What phenomenon occurs when you close one eye, then the other, and see your finger jump?

The perception of retinal disparity and different perspectives from each eye.

What effect does strabismus have on depth perception?

It can disrupt the sense of depth due to lack of proper eye coordination.

Who is Stereo Sue?

A woman with strabismus who could not perceive depth until she received treatment.

What does the case of Stereo Sue illustrate about the brain?

It illustrates neuroplasticity, the brain's ability to change with experience.

What happened to Stereo Sue when she received treatment for strabismus?

She developed a sense of depth that she never experienced before.