I didn't say reanimating, I said

demonstration of extracting real memories and personality from a cryopreserved dog/monkey

for example, demonstrating neural correlates of specific memories or learned skills in sliced & scanned electron microscope images/connectomes. Given that MRI scans can already read people's minds based on blood flow, (extremely crude), it doesn't actually sound that difficult. I reckon we could already do this with enough investment in scaling the scanning and slicing technology using mice.