Check out the latest episode of Your Child’s Brain. Join Dr. Brad Schlaggar President and CEO of Kennedy Krieger Institute and his guests Heidi Daniel,  president and CEO at the Enoch Pratt Free Library in Baltimore, and Dr. Tzipi Horowitz-Kraus, a developmental neuroscientist at Kennedy Krieger Institute as we discuss children's reading, literacy, and the impact of technology on both.

Links to visit:

Enoch Pratt library Summer Reading Program https://www.prattlibrary.org/summer-break

The Neurobiology of Reading podcast https://urlisolation.com/browser?clickId=796DE2A7-3F7F-4DA8-A057-296FDC84DFF0&traceToken=1682690228%3Bkennedykrieger_hosted%3Bhttps%3A%2Fwww.youtube.com%2Fwatch%3Fv%3DS&url=https%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3DS_7brlIMa_k

Dr. Brad Schlaggar (BS): Welcome to Your Child's Brain, a podcast series produced by Kennedy Krieger Institute with assistance from WYPR. I'm Dr. Brad Schlaggar, pediatric neurologist and president and CEO of Kennedy Krieger Institute. One of the most distinctive features of the human brain is its capacity for language. Arguably, our brains have evolved to produce spoken and heard language. But exactly when that capacity emerged in humans is debated, in the scientific literature, spoken language likely emerged no less than a couple of 100,000 years ago and perhaps as long ago as one million or more years. On the other hand, the invention of the written form of language and therefore the origins of reading, came roughly 5,000 years ago. Simply put, while our brains evolved for spoken language, reading and writing are far too recent to have been drivers for the evolution of our brains. It has only been in the last several 100 years that human society has put such a premium on the value of reading that large portions of society learned to read. That said, in Maryland and in the US as a whole and while estimates vary, roughly one in five adults has very low or absent literacy skills, contributing to significant challenges for the health and welfare of those individuals. For some, reading difficulty is largely the consequence of lack of access to quality education while for others, the issue is dyslexia or a reading impairment, despite sufficient intellectual ability and access to quality education. For so many reasons, it is critically important for us to understand the full complexity of how our brains learn to read and how factors in our children's life, like screen time, for example, impact the development of this crucial skill. Today, I'm joined by two guests, both with expertise that is highly relevant to a discussion of reading development and literacy. Dr. Tzipi Horwitz-Kraus from the Department of Neuropsychology at Kennedy Krieger Institute is an international leader in the neuroscience of reading development. She's an associate professor in the Department of Psychiatry and Behavioral Science at Johns Hopkins University School of Medicine. She's also an associate professor of education and science and technology and in biomedical engineering at the Technion, Israel Institute of Technology. For full disclosure, Tzipi and I are research collaborators on the neuroscience of reading development and we published several papers together. Heidi Daniel is the president and CEO of the Enoch Pratt Free Library, a true gem in Baltimore, Maryland, where she has been at the helm since July of 2017. Welcome, Tzipi and Heidi. Heidi, you're completing your sixth year leading the Enoch Pratt Free Library. I know that literacy is one of the pillars of the library's strategic plan, especially focused on digital literacy and pre-literacy. Tell us about the library's approach to literacy.

Heidi Daniel (HD): The library approaches literacy the way we approach most things through the lens of access. You mentioned having access to high-quality education and high-quality materials is really important for the development of reading and literacy in our population. The library's focus is really on making sure that we're approaching learning and reading as a whole person way of looking at it. We're very focused on family literacy and for our pre-literacy skills and wanting to make sure that we're empowering parents and caregivers and the community around children to be fully literate themselves, to have the skillsets that they need to develop literacy in the children and their families and their care and their communities. Then giving access to high-quality materials to help them develop. That looks like a lot of things. It could be providing access to programming around development of brain, development of reading. It's modeling, it's doing programs that model, seeing, read, play with your children. It's providing play rich environments where children have the opportunity to play and explore while also having a lot of rent around them integrated into their play scape. Because we know that children learn through play. It's also that digital literacy piece. As we recognize that digital literacy is critical to the communities that we service and through really our whole world. We're all connected to devices and screens. How does that play out when we start to talk about children learning to read and children's brain development. Even in our teens, how does that interact with their continued growth and development? We really want to make sure that parents are educated on the impact of devices, and that they have access to high-quality apps and materials on those devices. We're not telling people to stay away from screens and only take out print books. If you know anything about the library, we've got tons of electronic resources for folks to access. But what we want to make sure is that caregivers feel empowered to make decisions around high-quality electronic usage. What apps are really educational and useful? How much screen time kids should be having? Really looking at all of the things that come into play when we talk about the interaction of literacy and devices and that they know how to correctly use them for empowerment so that it's not just that junk food approach, doing what feels good, but maybe what isn't like super nutritional for your brain. We take that approach as well as connecting families to all the additional resources they might need to support growth and learning in their home.

BS: That sets us up so well for the discussion that we're about to have. Tzipi, tell us a bit about your work on understanding how our brains learn to read.

Tzipi Horwitz-Kraus (TH-K): I've been working on the neurobiology of reading for I think 15 years now. I started coming out from a very personal place with having several family members with dyslexia, with the basically difficulty in reading, struggle with reading along the years. I saw that aside to wonderful thinking skills, great intelligence, right ability to manage in your environment. It struck me, how can it be, how can these intelligent individuals struggle with this ability that most of us are doing so naturally? I started digging in and doing the academic journal that I'm having for many years. I started looking for biomarkers, for reading difficulties, and we started looking at different neuroimaging tools or tools that helps us to understand how the brain works. We found that individuals with dyslexia, when they are adults, their brain basically does not recognize that they're making reading errors. Then we said, let's see if this is modifiable. Can we train them to better recognize words and can their brain actually realize that they made reading errors? We found that the brain is plastic, so we moved on to kids and we found that the kid's brain, even if they have dyslexia, is even more plastic than the adult brain that has dyslexia. In the past years, aside to work that we are doing with children with dyslexia and reading difficulties, and we will talk more about it, we started looking at younger kids at pre-reading age and we're trying to see whether we can minimize reading difficulties, and for better effect, not only reading difficulties, let's make all kids love reading because this is one of the most enjoyable activities that kids can do themselves and definitely can do with their parents.

BS: As I mentioned earlier, human spoken language dates back on the order of probably 100,000 or a couple of 100,000 years ago. But written language and therefore reading, it's really been around just 5,000 years. What are the implications of how relatively new reading is for the human experience? How does that affect the way you think about investigating the way the brain learns to read?

TH-K: This is an amazing question and there is a lot of literature about it that relates to this whole process as recycling these brain networks that were originally aimed to listen, to see, to pay attention to things in order to work together, so reading is accomplished. I think when we're talking about recycling these networks. This is a term coined by a researcher named Dehaene 2009. We kind of understand that maybe not all people can recycle these networks and maybe these brain networks cannot be recycled as easily for everybody. That only emphasizes how much this process is not really intuitive. Which means that in order for these networks to be active together, in order for us to see the words, to listen to the words in our thought and to p