Which system is associated with a 20/20 spatial resolution?

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $24.99Unlock all

Test your knowledge on photoreceptors. Use flashcards and multiple-choice questions, each with hints and explanations. Prepare for your test with confidence!

Multiple Choice

Which system is associated with a 20/20 spatial resolution?

Explanation:
Spatial resolution is best under bright light when the visual system uses cones. Cones are densely packed in the fovea and connect to downstream neurons in a nearly one-to-one fashion, allowing very fine detail to be detected. This high density and direct wiring support acuity around 20/20, the standard for normal sharp vision. In dim light, the scotopic system relies on rods, which converge more onto fewer neurons, blending signals and reducing detail, so acuity is poorer. Thus, 20/20 spatial resolution is associated with photopic vision.

Spatial resolution is best under bright light when the visual system uses cones. Cones are densely packed in the fovea and connect to downstream neurons in a nearly one-to-one fashion, allowing very fine detail to be detected. This high density and direct wiring support acuity around 20/20, the standard for normal sharp vision. In dim light, the scotopic system relies on rods, which converge more onto fewer neurons, blending signals and reducing detail, so acuity is poorer. Thus, 20/20 spatial resolution is associated with photopic vision.

More Multiple Choice Questions
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy