The short answer is 1000 years is probably not long enough.
Evolution is a very slow process. Even very minor changes can take hundreds of thousands to millions of years to develop. Evolutionary processes span many thousands of generations. For instance, this article describes how adding 50 billion neurons to the brain of Homo erectus to form the brain of modern humans required two million years! The adaptation you describe seems very advanced, and I would expect such a change to occur over an even longer period of time.
The determining factors in this scenario are going to be two things: the mechanism for the ability you describe, and the mechanism for selection.
By mechanism, I mean the physical process by which the adaptation you want takes place. In familiar paleontology, this might be realized by an animal being able to run faster than its ancestors because its skeleton is shaped differently. It the skeleton only needs to change a little to get this result, the evolutionary process is faster (but remember, fast on en evolutionary scale can be 100,000 years). If you can find a plausible explanation for the adaptation you want which requires a minimal physical change in the brain, then your evolution could occur quickly.
The mechanism for evolution is the reason this trait develops. Evolution is based on survival of the fittest, so for a trait to develop, there has to be a reason why individuals carrying the trait are more likely to survive and reproduce than those that don't. There is an urban legend of sorts that evolution will lead to humans losing their pinky finger because it serves no purpose. I don't think that this is true. Even if the pinky does serve no purpose, nobody is more likely to die or not reproduce because they have one. Conversely, you must find a reason why people with the adaptation you describe, are more likely to survive and reproduce than those that don't. Even more importantly, evolution doesn't happen in one step. It is the result of many thousands of generation, each with small changes. You have to determine what small changes lead to the result you want, and why each change is a biological advantage for the individual possessing that change.
Evolution occurs quickly when disadvantaged individuals die off before reproducing. This means that humans are less likely to evolve quickly from here on out because we take care of those members of our species who are dying. With average life expectancy well beyond the child bearing years in most parts of the world, there is not really any such thing as biologically disadvantaged anymore, at least, not on a large scale.
Finally, note that evolution happens fastest in small, isolated groups. The human race is basically the opposite of that. The idea is that it is easier to evolve a few individuals at a time than billions. Humans are so homogeneous that given our current culture, we would have to evolve all at once, which is much slower.
All in all, I think that for any creature whose life span is measured in years, little to no significant evolutionary changes could be seen in the species as a whole in just 1000 years.
Perhaps 10,000,000 years would be sufficient.