Did anyone notice this? *spoilers possible*

In the scene where Gillian has another vision of Robin and Dr. Ellen is sitting with her, if you watch very carefully, when Ellen is bleeding, look at the face reflected from the glass table. De Palma shows the face of Robin (Andrew Stevens) in the reflection. Robin's face is contorted as if he's in pain. De Palma does this two times. In the final shot in this scene, when you look at the reflection one last time, its Ellen right before she collapses.

I watched this film again recently and just noticed this. At first, you assume its Ellen b/c she's sitting next to Gillian as she's seeing Robin in a vision. Plus, I thought it was Ellen due to the length and color of hair of both characters. However, when I noticed something was weird, I watched the scene in slow motion. When you do this, you can see what I'm talking about.

For those that don't know what I'm talking about, watch the film and when you come to the scene, slow down your player and you'll see what I'm talking about. Once you've done so, answer this question for me...why do you think De Palma did this? The only answer I can provide maybe this was De Palma's way of showing us how tortured Robin really was. I also wonder if Robin realized then there was a kindred soul out there and that was his way of "reaching out" to Gillian via his powers?

Any thoughts...