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
The parvocellular pathway from lateral geniculate nucleus to visual cortex is most sensitive for the stimulus of 
Select and explain. 
A. Color contrast, B. Luminance contrast, C. Temporal frequency, D. Saccadic eye movements
A: Color contrast
Answer: A: Color contrast 
Explanation: The parvocellular pathway, from the lateral geniculate nucleus (Layers 3-6) to the visual cortex, carries signals for the detection of colour vision, texture, shape and fine details.