Certain expressions, reflexive pronouns, must be bound in certain limited grammatical environments. In other words, they have to be matched with an expression in certain special ways.
1. Taro wants to improve himself.
2. Taro wants Hanako to like him.
3. *Taro wants Hanako to like himself.
4. Taro wants Hanako to like herself.
4 is fine. Hanako is the logical subject of the -tense clause [to like herself] and the reflexive pronoun herself can successfully match with Hanako.
5. He gave her a picture of himself.
6. He gave her a picture of him.
He can match himself in 5. In sentence 6, He and him cannot match.
7. He wants her to see a picture of him.
8. ??He wants her to see a picture of himself.
9. ??I want you to see a picture of myself.
10. I want you see a picture of me.
8 and 9 are not very good. 10 is fine.
It seems that, when matching expressions, the presence of a logical subject makes a difference. How do we explain the presence of a logical subject? Has something been moved from that position? Or is the verb wants controlling things by matching its object with the logical subject of the [-tense clause]?
Anyway, have a look at my PowerPoint slides about Binding Theory. Or check out the YouTube movie below.