Help with Yaz's "Space Count"?

Hi guys, l'm going through Yaz's Video Chess Mentor Series (an oldie but a goodie) and l have a question about one of the topics that appears early in the video series. Which is "Space Count".

In the following position, Yaz says that White has a +4 in the space count:

Image:

FEN: r1bq1rk1/ppp1nppp/8/3n4/2BP4/1Q3N2/PP1N1PPP/R4RK1 w KQkq - 0 1

How is he coming up with this +4 count for white?

Earlier in the video he states that Space Count is measured by the # of squares in your opponent's side of the board that your pieces and pawns control/have influence over.

So by my count white pieces reach out to a total of: 8 squares on the black side of the board while black's pieces reach out to a total of 6 squares on the white side of the board -- therefore it's a +2 space count for white not +4 ... What am l missing? 

The only thing l can imagine is the Queen + Bishop battery attacking the Knight on d5, does that count as +2 for white in the space count; making the total space count +4?

I get 10 - 6 in whites favour. White: Ng5 Ne5 Pe5 Pc5 Bd5 Bb5 Ba6 Qb5 Qb6 Qb7. Black: Nb4 Nc3 Nd3 Nf4 Bg4 Bh3.

How i learned thsi was:

Count the number of squares each opposing piece controls.  

Compare hwo many squares each queen controls, then rooks, bishops, knights.

Thank you very much for listing out the pieces and squares they control. I see now that l had neglected to count the queen's attack on the pawn @ b7, and the bishops attack on the knight @ d5

... so squares count even if they are occupied by enemy pieces.