Paraphrase

Hi, can you help me with the highlighted sentence? I need to paraphrase it, but I cannot find a proper synonym for "feed into", as it's very connotative. Thanks!

Recently, book publishers got some good news. Researchers gave 852 disadvantaged students 12 books (of their own choosing) to take home at the end of the school year. They did this for three successive years.

Then the researchers, led by Richard Allington of the University of Tennessee, looked at those students’ test scores. They found that the students who brought the books home had significantly higher reading scores than other students. These students were less affected by the “summer slide” — the decline that especially afflicts lower-income students during the vacation months. In fact, just having those 12 books seemed to have as much positive effect as attending summer school.

This study, along with many others, illustrates the tremendous power of books. We already knew, from research in 27 countries, that kids who grow up in a home with 500 books stay in school longer and do better. This new study suggests that introducing books into homes that may not have them also produces significant educational gains.

Recently, Internet mavens got some bad news. Jacob Vigdor and Helen Ladd of Duke’s Sanford School of Public Policy examined computer use among a half-million 5th through 8th graders in North Carolina. They found that the spread of home computers and high-speed Internet access was associated with significant declines in math and reading scores.

This study, following up on others, finds that broadband access is not necessarily good for kids and may be harmful to their academic performance. And this study used data from 2000 to 2005 before Twitter and Facebook took off.

These two studies feed into the debate that is now surrounding Nicholas Carr’s book, “The Shallows.” Carr argues that the Internet is leading to a short-attention-span culture. He cites a pile of research showing that the multidistraction, hyperlink world degrades people’s abilities to engage in deep thought or serious contemplation.