I'm glad I'm not the only one who thought of Orwell when reading the first post.
Yes, it does! I find myself constantly assigning "human" emotions and characteristics to my dog. She's as close to human as I have ever known, so it's an easy thing to do.
Are you actually "assigning" human emotions or characteristics to your dog.. or is your dog actually portraying dog emotions? Dogs can be happy and sad, scared and overjoyed. That's not entirely anthropomorphism. Now... when your dog starts standing upright to walk and dealing with complex emotional turmoil... then that would be a different story.
A dog who is happy to see you is a little different than the White Rabbit from Alice in Wonderland.
Personally I truly believe that dogs are more "complex" than we give them credit. True, they are not able to analyze and define the complexities of life, but they DO have emotions such as fear, happiness, sadness, etc. My dog has a wide "vocabulary", for instance,but I know it is only from association and repitition, that she has "learned" this language. In any event even though they are not human, they communicate effectively--more so than a lot of people I know!! God Bless 'em!