You will be shown an excerpt from a computer science scientific research paper, followed by a question about the paper. Please answer the question. Do not include any text in your response other than the answer.

Context: Each layer of data in a convnet is a three-dimensional array of size h\times w\times d, where h and w are spatial dimensions, and d is the feature or channel dimension.The first layer is the image, with pixel size h\times w, and d color channels.Locations in higher layers correspond to the locations in the image they are path-connected to, which are called their receptive fields.

Question: What does “receptive fields” mean?
receptive fields mean the higher layer which is connected to the original layer.