“Our findings suggest that some of these kids walk into their first day of kindergarten with their little backpacks and a less-optimal brain for learning to read, and that these differences in brain development start showing up in toddlerhood” (Mineo, 2026). Brain development begins at conception according to its genetic code, which is influenced by its environment. Each set of genetic coding is unique, except for identical births. Some individuals have the genetic coding to develop brain pathways that are different than most individuals, like dyslexia. This makes learning how to effectively process symbols/letters, words, and their meanings more challenging. Environmental factors will influence the severity of dyslexia and learning how to read.
“The brain bases for reading-related skills are being built in infancy, long before children learn to read” (Mineo, 2025). Researchers have identified three regions in the brain that work together to process written symbols. The first region is the anterior. This region located in the front left side of the brain and is responsible for processing phonological information. The second region of the brain that helps to effectively process printed information is the temporoparietal region. This region is in the mid-left side of the brain and processes orthographical information into patterns of speech and meaning. The third region that helps to effectively process written information into sound and meaning is the occipitotemporal region, located in the back, lower left-side of the brain. This region stores a picture of each word along with its sound and meaning. These 
regions work as a team to read written words. https://www.zaner-bloser.com/research/building-the-reading-brain
Students with developmental dyslexia do not develop the infrastructure within their brain to initial process written letters or symbols. Their brain processes written information through different routes than most individuals. They use the anterior region in the left side of the brain and parts of the right brain to process written words. The connections between the temporoparietal region and the occipitotemporal region are not yet developed. Students with dyslexia compensate by using parts of their right brain, until the necessary connections of the left-hand side of the brain are developed. Their brain works twice as hard to process the information. This is why many students with dyslexia do not show outwards signs of a disability until they start trying to make sense of or use written words. These students usually become tired, frustrated, and check-out. This often leads to t
he “lazy” look. These individuals usually need direct, explicit instruction to help develop the necessary connections in the left side of the brain.
There are also many environmental factors that may have an influence on the developing brain. One factor is the community of people in the developing brain’s immediate environment and what their habits may entail-nurturing, chemicals. Another factor is technology, the amount of use or interaction with different types of technology will affect the developing brain, such as a pencil or mechanical or electronic devices. The amount of television and programs viewed will affect the developing brain. Another factor is the amount and types of conversations the developing brain hears. Another factor is the amount of print the developing brain is exposed to. Another factor is the amount of interaction the developing brain is given through different senses-sight, sound, taste, touch, and smell. The environmental factors that the developing brain is exposed to helps to develop the layers of information or knowledge that individual’s use when learning to read and reading information in print. If the process is slowed, stopped, or altered by environmental factors, the results will be altered. Often when students struggle in learning how to read, we do not know all the factors involved that have developed the student disability.
Many of the initial layers of knowledge necessary to read written words are not seen or heard while growing, like the first initial growth of a plant. A plant seed uses its “genetic” coding to begin growing. Like a human seed, the plant seed needs the right environment to begin growth. A plant first grows roots. Then a stem begins to grow. Then leaves begin growing. This growth all takes place usually unseen, underground. The plant has been developing the connections necessary to survive out of the soil. Once the plant has poked out of the soil it will continue to grow according to its genetic design, affected by environmental factors. Like the unseen plant growth, the human brain develops in layers. Many layers are unseen, like before individuals begin to talk. The brain or person observes and listens for quite some time (about a year) before spoken utterances begin. The fruit of their observation is realized gradually overtime. The number of spoken words grows overtime, along with the complexity of verbal sentence structure.
Current research suggests that the brain begins categorizing and storing new information at conception. The foundational layers necessary for future affluent reading becomes more prevalent around age 18 months. The complexity of the brain is developed enough to determine who will struggle with phonological processing. At this stage of development researchers were able to determine “individual differences in early brain structure associated with phonological processing and mediate decoding and word reading ability in early school” (Mineo, 2025). The lack of phonological processing skills is a major indication of dyslexia or deficiency in learning how to read written language.
These new findings support prior researchers’ conclusions. Fowler (1983) theorized that a person’s environment has influence on their genetic code and that individuals develop in a layered manner. Piaget (1966) theorized that as a child’s body maturates, the more complex their brain can process information. Vygotsky (1934) theorized individuals first process information orally, until the age of 7 when they begin processing (thinking) information both internally and externally. He also theorized that individuals layer their knowledge through the help of their community environment. Meaning students usually cannot complete an activity before the foundation for that activity is developed without the assistance of another individual who has the prior knowledge or foundational skills of task. Binet and Simon (1906) theorized that children will be able to complete certain tasks at a particular age, but usually not before. For instance, Binet and Simon (1916) discovered that a picture could determine a children’s intellectual age at three, seven, and twelve. Three-year-old children give simple explanations of the people within a picture, but not the background or happenings of the people within the picture. Children at the intellectual age of seven can examine a picture and describe the relationship of the people and objects within the picture. At the intellectual age of twelve, children can give an interpretation of the picture. The interpretation is expressed in written form about their feelings in relation to a description of the picture.
Intervention usually assists in the development of connections (by-ways and high-ways) within the brain. This usually leads to effective reading skills when practiced and practiced and practiced. These students will need extra time to grow and practice each newly acquire skill with in the complex system of affluent reading.
References
Binet, A. & Simon, T. (1915). A method of measuring the development of the intelligence of your children. Chicago Medical Books.
Binet, A. & Simon, T. (1916). The development of intelligence in children. Williams & Wilkins Co.
Fowler, W. (1962). Cognitive learning in infancy and early childhood. Psychological Bulletin, 59(2). 116-152.
Fowler, W. (1983) Potentials of childhood, Vol 1. Heath & Co.
Healy, J. (2010). Different Learners. New York: Simon & Schuster
International Dyslexia Association Conference (2013-2014) Eden, G., Hoeft, F., Moats, L., & Pugh, K.
Mineo, L. (2025). Reading skills—and struggles—manifest earlier than thought. New finding underscores need to intervene before kids start school, say researchers. The Harvard
Gazette. https://news.harvard.edu/gazette/story/2025/06/reading-skills-and-struggles-manifest-earlier-than-thought/
Piaget, J. & Inhelder, B. (2000). The psychology of the child. Basic Books.
Turesky, T., Escalante, E., Loh, M., & Gaab, N. (2025). Longitudinal trajectories of brain development from infancy to school age and their relationship with literacy development. PNAS, 122(24), 1-12. https://doi.org/10.1073/pnas.2414598122
Vygotsky, L. (1934). Thought and language. MIT Press.
Zaner-Bloser. (2025). https://www.zaner-bloser.com/research/building-the-reading-brain
