This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Physiology
[{'content': 'The parvocellular pathway, from die lateral geniculate nucleus to the visual cortex, carries signals for the detection of \nSelect and explain. \nA. Movement, depth and flicker, B. Color vision, shape and fine details, C. Temporal frequency, D. Luminance contrast', 'role': 'user'}, {'content': 'Answer: B \nExplanation: From the lateral geniculate nucleus, a magnocellular pathway and a parvocellular pathway project to the visual cortex. The parvocellular pathway, from layers 3–6, carries signals for color vision, texture, shape, and fine detail. The parvocellular pathway also carries color opponent data to the deep part of layer 4.', 'role': 'assistant'}]