The Power of Practice: How Number-Hand Links Last

Ever notice how your hands seem to know numbers? Like, you naturally tap your left hand for small numbers and right for big ones? Scientists call this the SNARC effect. A recent study dug deeper. They found that if you practice linking numbers to hands, it sticks. Even a week later, the effect stayed strong. So, it's not just a fleeting thing. It's like your brain forms a lasting bond between numbers and your hands. Isn't that cool? The study had folks do tasks where they had to classify numbers as small or big. Some did it the usual way, some did it backwards. Then, they did another task where they had to judge if numbers were odd or even. Five minutes, a day, or a week later, the effect was still there. Those who practiced the usual way were quicker with left for small, right for big. Those who did it backwards were quicker the other way around. Those who didn't practice at all showed no real effect. This shows that the SNARC effect can be shaped by what you practice. It's not just about math, but how your brain wires things together. Next time you're learning something new, remember: practice can make a lasting impact.