jedusor: (i have a cat)
The marshmallow study continues, with now-middle-aged participants still reflecting their four-year-old willpower. (PDF download of the study.)

I'm told that when I was about four, I participated in a study at the local university. The researcher asked me a series of questions, and I was supposed to answer them while playing with toys as some sort of distraction. Partway through, I put down the toys and asked to see the clipboard with the questions on it. The researcher bemusedly handed it over, and I read through and answered the questions, explaining that it was easier for me to process them when I read them myself. My mother sat on the other side of a two-way mirror, making a valiant effort not to piss her pants laughing. I have no idea what the study was about, but I'm pretty sure my data were excluded.

It makes me wonder how I would have handled the marshmallow test, had I been a participant at the age of four. I would have earned my second marshmallow easily, because I would have spent the fifteen-minute wait lecturing Dr. Mischel about his choice to use a candy containing gelatin and demanding to know whether he was aware of the processes involved in producing that ingredient. I would have then stormed away in a huff, possibly after destroying both marshmallows in a display of symbolic protest.

These days, I just criticize the experimental design and try to figure out the point of the study before debriefing. I am a terrible subject for scientific studies. Really, really awful.
jedusor: (badass geek)
I had a dream that my mom came to visit me in Seattle (which she is going to do next month) and that I took her to a vegan restaurant called The Shack (which does not, to my knowledge, exist). "The Shack" was a bit of a misnomer, since the restaurant was in a castle. We went in and apparently before you eat there they give you a tour of the whole place. So they took us through the dining area, where we got samples of ALL THE FOOD (including like 20 different kinds of bread, one of which was maple-flavored and I kind of want to try making it now), and then they took us to the research dungeons where the food is developed! Not the kitchens. The research dungeons. And I was all O.O "CAN I WORK FOR YOU PLEASE" and they were like "well, we're looking for a project manager! But you have no project manager experience. We could give you an unpaid internship with potential for career advancement?" and I was about to say "YES YES YES WHEN DO I START" when I woke up.

With EPIC MAD SCIENTIST HAIR.

Man, sometimes reality is a disappointment.
jedusor: (badass geek)
I like it when all my samples are the same size, because then I don't have to go in and recalculate mean/standard deviation/standard error if the value I'm calculating for happens to show up more than once in the results. *happy wiggle*

(There is nothing more awesome than using statistics on actual true-facts data, especially when I gathered the data myself. I am finding things out that no one has ever found out before. This is why I do this, you guys. *wiggle wiggle wiggle*)

ETA: seriously, when I run an analysis, there's a minute before I tell Dr. K the results when I am the only person in the universe who knows or has ever known this one little thing about how the world works. It's the most fucking amazing feeling I've ever had.
jedusor: (badass geek)
Okay, so mirror neurons (neurons that fire the same way when you engage in a behavior and when you observe others engaging in the same behavior) might be involved in empathy. There's not a ton of research supporting that yet, but I think it makes a lot of sense.

I also think it makes sense for mirror neurons to be integral to the phenomenon of contagious yawning. (Apologies in advance as everyone reading this starts feeling that urge.) Kids develop theory of mind around age 4, and start yawning in response to videos of yawning around age 5. Tons of potential third variables there, I know. Just a thought.

Now I really want to go find some sociopaths and yawn at them to see if they yawn too. Or autistic people, I suppose, but there are even more potential third variables in that population.
jedusor: (neuron art)
I was over at Dr. K's today analyzing some data and talking her into buying me Photoshop (successfully, yay), and we were talking about getting an abstract ready for our AChemS poster submission, and she just kind of casually mentioned "first author, which would be you..."

dude, what?

Apparently I'm going to be listed as first author on this. I guess it sort of makes sense, looking back over the work that's been done in the lab since last year's conference. And I'll be the one doing the writing and layout and graphs for the poster itself. Still, I wasn't expecting this, and it feels sort of amazing.
jedusor: (food: coffee cake)
Animals may use sweet taste to predict the caloric contents of food. Eating sweet noncaloric substances may degrade this predictive relationship, leading to positive energy balance through increased food intake and/or diminished energy expenditure... We found that reducing the correlation between sweet taste and the caloric content of foods using artificial sweeteners in rats resulted in increased caloric intake, increased body weight, and increased adiposity, as well as diminished caloric compensation and blunted thermic responses to sweet-tasting diets. These results suggest that consumption of products containing artificial sweeteners may lead to increased body weight and obesity by interfering with fundamental homeostatic, physiological processes.

--from the abstract of a study conducted in 2008

I've never liked artificial sweeteners; I think not being exposed to them much as a kid made me sensitive to them. I didn't pay much attention to the topic until I started in Dr. Kennedy's lab, where we use artificial sweeteners in our research. They're supposed to stimulate the same cascades as regular sugars, but they don't taste the same to me, and there's some weird crap going on with regards to pleasure responses. It's possible, based on that research, that I'm actually experiencing the same subjective perception but also a negative emotional response. Which would be awesome in terms of understanding the brain, but just adds to my aversion to artificial sweeteners in my own diet.

And now it looks like in addition to that, they screw with caloric homeostasis. I don't think that would be different in humans than it is in rats. And if that's the case, I can't think of a reason (apart from diabetes etc.) to eat artificially sweetened foods.
jedusor: (orli says read)
Experimental Methods midterm: 100%, bitches. Mmmmmhm.

Off to the cafeteria now. Winter and Jason and I are using one meal swipe each when it opens and staying inside until it closes at eight. We're going to take over one of the tables next to the electrical outlets and do all our homework for 9.5 hours. I'm unreasonably excited about this.

Oh, and it sounds like I'm going to be able to join Dr. Laird's lab. He gave me his book and told me to find a topic that interests me so he can team me up with someone to do a project, which sounds kind of like I get to pick what I want to study, which YAY.

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