Under scotopic conditions, how does spatial resolution compare to photopic?

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

Multiple Choice

Under scotopic conditions, how does spatial resolution compare to photopic?

Explanation:
Under low light, vision is dominated by rods. Many rods feed into a single ganglion cell, creating large receptive fields. This pooling increases sensitivity in the dark but blurs fine detail, so spatial resolution drops. In bright light, cones take over, especially in the fovea, where each cone (or small group of cones) connects to its own or very few ganglion cells, giving small receptive fields and much sharper detail. So, spatial resolution is lower in scotopic conditions than in photopic.

Under low light, vision is dominated by rods. Many rods feed into a single ganglion cell, creating large receptive fields. This pooling increases sensitivity in the dark but blurs fine detail, so spatial resolution drops. In bright light, cones take over, especially in the fovea, where each cone (or small group of cones) connects to its own or very few ganglion cells, giving small receptive fields and much sharper detail. So, spatial resolution is lower in scotopic conditions than in photopic.

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