Final answer:
The spatial layout hypothesis proposes that the posterior parietal cortex (PPC) is involved in representing spatial layout information, while Epstein and Kanwisher's proposal suggests that a specific region within the PPC called the Parahippocampal Place Area (PPA) is involved in processing information related to places.
Step-by-step explanation:
The spatial layout hypothesis proposes that the posterior parietal cortex (PPC) is involved in representing spatial layout information, such as the locations and orientations of objects in our environment. This hypothesis suggests that the PPC helps us navigate and interact with our surroundings. On the other hand, Epstein and Kanwisher's proposal suggests that a specific region within the PPC called the Parahippocampal Place Area (PPA) is specifically involved in processing information related to places, such as recognizing and remembering familiar locations.