 Stimulus generalization. When one particular stimulus evokes a particular response. Other stimuli that share similar features to that stimulus will also evoke similar responses. I know that's like a really simple definition, but I better give you an example. I'm a woodworker, okay? I enjoy wood. I really enjoy wood. You have no idea. On lots of levels I enjoy wood, folks. So anyway, so we've been up here doing these videos for a long time now and I always feel the wood, right? Because that's what I do in the presence of wood. Stimulus, it doesn't even have to be real. Look at this wood. Oh, yeah, it's like a maple. And this, I always forget what this is, but what is your wood? Tiger wood. And it's tiger wood. I have no other words. So we'll call this tiger wood. This is maple. Looks like, all right. See, got one right. So to me, wood evokes a similar response. I smile. I like to touch it. I like to feel it. I like to look at it. I like to look at the grain and a special word that you're never going to hear anywhere but psych-core. It's called chatoiants. All right? That funny, color-y, reflective stuff that appears in the wood, like wavy patterns. You can see it here. I don't know if it shows up on the camera. You might be able to see it here. There's light streaks. There's dark streaks. That's called chatoiants. Why I'm teaching them word about chatoiants? Because every time I see wood, I have to tell people about chatoiants. It doesn't matter what type of wood it is. Generization of stimulus wood. Bingo.