Read this full article: "seems" is the operative word, as linguists are NOT in agreement that language definitively shapes how we see the world. If you want to learn another language and become fluent, you may have to change the way you behave in small but sometimes significant ways, specifically how you sort things into categories and what you notice. Researchers are starting to study how those changes happen, says Aneta Pavlenko, a professor of linguistics at Temple University. If people speaking different languages need to group or observe things differently, then bilinguals ought to switch focus depending on the language they use. That's exactly the case, according to Pavlenko. For example, she says English distinguishes between cups and glasses, but in Russian, the difference between chashka (cup) and stakan (glass) is based on shape, not material. One's native language could also affect memory, says Pavlenko. She points to novelist Vladimir Nabokov, who was fully trilingual in English, French and Russian. When Nabokov started translating his first memoir, written in English, into Russian, he recalled a lot of things that he did not remember when writing it in English. Pavlenko states that "the version of Nabokov's autobiography we know now is actually a third attempt, where he had to recall more things in Russian and then re-translate them from Russian back into English." Lena Boroditsky, an associate professor of cognitive science at the University of California, San Diego, has studied the differences in what research subjects remember when using English, which doesn't always note the intent of an action, and Spanish, which does. This can lead to differences in what people remember seeing, which is potentially important in eyewitness testimony, she says. However, not all linguists agree that language affects what we notice. John McWhorter,, a linguist at Columbia University, acknowledges such differences but says they don't really matter. The experim