AP Psychology Practice Test 2026 – 400 Free Practice Questions to Pass the Exam

Question: 1 / 530

What is the primary function of cones in the retina?

Detecting motion

Night vision

Detecting fine detail and color

Cones are responsible for detecting fine detail and color in the retina. They are most densely concentrated in the fovea, which is the center of the retina and responsible for sharp, detailed vision. This makes option C the correct answer.

Option A is incorrect because motion detection is primarily the role of rods in the retina. Rods are more sensitive to light and therefore are better suited for detecting motion in low light situations.

Option B is incorrect because night vision is also primarily the role of rods. In low light conditions, rods are responsible for detecting movement and shapes.

Option D is incorrect because peripheral vision is mainly carried out by rods, which are also more numerous in the retina compared to cones.

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Increasing peripheral vision

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