Day Five
Interior-Col. Carter's Suite, Kitchen
0650 Hours
"Hey, I woke up and you weren't there." Carter said as she stepped into the kitchen. "How long have you been up? Are you okay?"
"I'm fine." Tammy said, taking her hand and kissing it lightly as Carter stood over her. "I couldn't sleep, and didn't want to wake you, so I came in here. I've been looking at a few things."
"What kind of things are you looking at?" Carter asked, leaning over her shoulder. "How long have you been out here?"
"A couple hours. I just made the coffee. Get a cup, and I'll show you. I'll make breakfast in a little bit."
Tammy turned her laptop around so Sam would be able to see it when she came back. She was looking at an image on her tablet when Sam sat down.
"Okay, this chart shows your blood chemistry over the last 48 hours." She said, pointing at the laptop screen. She traced her finger across a line near the top. "This shows your glutamate levels. It's the most common neurotransmitter, and is in as much as half of all neurons in the brain. It's especially important in regards to memory. Curiously, glutamate is actually toxic to neurons, and an excess will kill them."
"If you say so." Sam said.
"I do. The problem is, with levels this high, you should be having trouble remembering your name, much less learning new skills, like you appear to be doing."
"What's that thing on your tablet? It looks like an ultrasound." Carter said, leaning closer to get a better look. "I'm not pregnant am I?"
"No, you're not pregnant." Tammy laughed. "This is one of the images we got off the scanner yesterday. That's your brain, not your belly. Here's a better look." She brought up another image that showed a top view of Carter's brain, with colored highlights in different areas.
"This is a representation of what was going on in your brain just as you began speaking normally yesterday. It was the scan I had in progress. We didn't look at, because you seemed to have recovered."
"Seem to have recovered. I'm not sure I like the sound of that." Carter said slowly. "Hold on a sec, I need more sugar. You need a refill?"
"I'm fine." Tammy said, bringing another image up beside the first on her tablet.
"Now, look at these two images side by side. You see the difference?" She said as Carter sat down.
"The second one is mostly red and orange, and the first one is blue and green." Carter said. "How much time passed between these two scans? And I'm guessing that the second one was earlier?
"Yeah, they were about forty minutes apart. These are the first and last scans. Now look at this." She wiped the images from the screen, and brought up another pair. "These two images are also of your brain. The first pair showed what was going on in your brain, these show the make-up of your brain itself. What do you see now?"
Carter took the tablet and examined the images. She looked up at Tammy, a puzzled expression on her face. "I don't see any difference. But you do, or you wouldn't be showing me these."
"Look here," She said as she slid around next to Carter. She pointed at part of the screen, circling it with her finger, then pointed at the corresponding area on the other picture. "Then here, and here." She repeated the process in another area.
Carter looked at the images again, flicking her eyes back and forth between them. "The picture on the left has more dark areas where you're pointing. What's that mean?"
"This area here is the frontal lobe. It's involved in decision making, problem solving, and planning. This other area is the temporal lobe, and it's involved in memory and language, among other things."
She stood up and went over to the fridge. "You didn't have a stroke, or anything like that yesterday. Your brain went wonky while it was reconfiguring itself."
She poked around in the fridge for a moment, then turned back to Sam. "You got any ideas what you might want for breakfast?" She asked.
"Timeout!" Carter said, looking back and forth between Tammy and the pictures on the tablet. "My brain did what? I don't think I want to believe what I think I just heard you say."
"Well, if you think you just heard me say that based on those images, one taken yesterday, the other five months ago during your last physical, that you now have roughly thirteen percent more active neurons, you would be right."
Tammy walked over and leaned over Sam's shoulder, pointing at another area of the screen. "This is the cerebellum. It coordinates the brain's instructions for skilled repetitive movements and for maintaining balance and posture. I see a dramatic change there too, that explains your improved kinesthetic awareness."
"You knowledge of your body's position in space." She said when Carter looked back over her shoulder at her. "Which is why you can do gymnastics again, without practicing recently."
"But I think yesterday's incident was centered in the temporal lobe, which is why your speech was impaired. That's where all the red and orange were on the first two images." She said as she went back over to the fridge. "I'm thinking that these changes are happening mostly while you sleep, but we just happened to catch one as it occurred."
"You seem to be taking this very well." Carter said as she looked at the tablet again.
"Yeah, I'm sorry if I appear to be taking this lightly, but I've had a couple of hours to go over this a few times, and now I'm just relieved. There's no noticeable change in the brainstem, the part of the brain that connects the brain and spinal cord. That's involved in coordinating the basic functions, like heart rate and breathing. That's what let's you do other stuff without going, 'breathe in, breathe out'."
"And these other changes don't worry you?"
Tammy walked over and took her hand, pulling her to her feet. "I don't know yet." She said as she took Sam in her arms, looking into her eyes. "But aside from yesterday's incident, they appear to be benign, at least from a direct health standpoint. We're going to have to do more testing to see what's really happening in there." She tapped her fingers lightly on Carter's forehead.
Sam laid her head on her shoulder, her arms going around her waist, hugging her tightly to her. "I'm scared, Tammy." She said softly.
"I know, hon." Tammy said as she stroked her hair gently. "We knew there were changes taking place, but now we know where, and that will help us figure out the what and the why. It's going to be okay. You're going to be okay. Just...better."
"Better?" Sam asked as she stepped back, looking at Tammy. "How do you mean?"
"Yes, better. You're not just changing, Sam. You're evolving. I need to see medical data on the ancients if you can get that for me, but I think right now, you're somewhere in between them and us." She smiled as she looked at her. "And I think that means you don't have to die. At some point, you can decide to ascend if you want to."
Interior-Bedroom
0825 Hours