How Cross-Lateral Communication Boosts Learning, Behavior, and Sensory Processing

In the world of child development, many parents and professionals focus on the surface-level symptoms—difficulty learning to read, attention challenges, meltdowns, sensory issues, or impulsive behavior. But beneath these challenges often lies something deeper: underdeveloped communication between the two hemispheres of the brain.

This essential brain function, known as cross-lateral integration or bilateral coordination, plays a critical role in how children think, learn, move, and behave.

What Is Cross-Lateral Communication?

Our brains are divided into two hemispheres—left and right—that are responsible for different types of processing. The left brain tends to specialize in logic, language, sequencing, and details. The right brain is more involved in emotion, spatial awareness, creativity, and big-picture thinking.

But these two halves don’t work in isolation. They’re meant to work together, constantly communicating through a structure called the corpus callosum—a thick band of nerve fibers that acts like a superhighway between the hemispheres (Gazzaniga, 2000).

When communication between the hemispheres is strong, a child can access both logic and emotion, organize thoughts, control their body and behavior, and process sensory input more smoothly. When it's underdeveloped, we often see signs like:

• Poor coordination

• Reversals in reading or writing (like confusing “b” and “d”)

• Difficulty crossing midline

• Attention or impulse control issues

• Emotional reactivity or meltdowns

• Sensory overwhelm or shutdown

Why Cross-Lateral Integration Matters for Learning and Behavior

Healthy cross-hemispheric communication supports:

🧠 Cognitive processing: Skills like reading, comprehension, writing, and math rely on both sides of the brain. For example, decoding words uses the left brain while visualizing meaning uses the right (Shaywitz, 2003).

🧠 Behavioral regulation: Emotional control requires cooperation between the emotional right brain and the logical left brain (Siegel, 2012). Poor integration often means emotional outbursts and delayed self-regulation.

🧠 Sensory processing: The ability to interpret and respond to sensory input appropriately depends on the whole brain working together (Ayres, 2005). When communication is delayed, children may seem overly sensitive or unaware of their bodies in space.

What Disrupts This Communication?

• Delayed motor development

• Retained primitive reflexes

• Birth trauma or early medical issues

• Lack of crawling or tummy time

• Excessive screen time

These all impact the development of the movement patterns and neural wiring that support cross-lateral integration (Goddard Blythe, 2009).

Treatments and Activities That Strengthen Cross-Lateral Communication

✅ Primitive Reflex Integration
Certain retained reflexes, like the Asymmetrical Tonic Neck Reflex (ATNR), can block cross-midline movements. Integrating these reflexes clears the path for higher brain functions (Goddard Blythe, 2005).

✅ Cross-Lateral Movements
Exercises like crawling, marching, or drawing figure eights engage both sides of the brain. Studies show that bilateral motor activities can improve reading fluency and academic performance (Hill, 2001).

✅ Brain Gym, Brain Training, or Bal-A-Vis-X
These movement-based programs use specific patterned exercises to improve hemispheric integration and sensory processing. Anecdotal reports and small studies support improvements in behavior and attention (Dennison & Dennison, 1989; Haraldsson et al., 2012).

✅ Interactive Metronome (IM)
IM helps build timing, rhythm, and neural synchronization. Research shows improvements in attention, working memory, and motor control in children with ADHD and learning challenges (Shaffer et al., 2001).

✅ Neurodevelopmental Movement Therapy
By retracing developmental movement patterns, these programs promote neurological organization and bilateral coordination (Masgutova, 2011).

✅ Low-Level Laser Therapy and Tools like Rezzimax
These tools can calm the nervous system and improve vagal tone, which supports regulation and readiness to learn—but are most effective when combined with movement (Chung et al., 2012).

✅ Sensory Integration Therapy
Occupational therapy rooted in sensory processing often includes bilateral and cross-midline activities to improve whole-brain function (Schaaf & Mailloux, 2015).

Final Thoughts

If your child struggles with learning, attention, emotional outbursts, or sensory overload, consider looking below the surface. Strengthening cross-lateral communication can unlock higher-level brain functions—without relying solely on academic interventions or behavior plans.

Movement is more than just physical activity—it’s the foundation of how the brain wires itself for success. By focusing on how both sides of the brain talk to each other, we can help children learn more easily, feel more regulated, and thrive in their daily lives.

Ready to get started? Learn more about our INTEGRATE program that helps to develop the brain from the bottom-up, first via primitive reflex integration, then through brain balancing techniques that improve cross-lateral communication.

References

• Ayres, A. J. (2005). Sensory Integration and the Child. Western Psychological Services.

• Chung, H., Dai, T., Sharma, S. K., Huang, Y. Y., Carroll, J. D., & Hamblin, M. R. (2012). The Nuts and Bolts of Low-level Laser (Light) Therapy. Annals of Biomedical Engineering, 40(2), 516–533.

• Dennison, P. E., & Dennison, G. E. (1989). Brain Gym: Simple Activities for Whole Brain Learning. Edu-Kinesthetics, Inc.

• Gazzaniga, M. S. (2000). Cerebral specialization and interhemispheric communication: Does the corpus callosum enable the human condition? Brain, 123(7), 1293–1326.

• Goddard Blythe, S. (2005). The Well Balanced Child. Hawthorn Press.

• Goddard Blythe, S. (2009). Attention, Balance and Coordination: The A.B.C. of Learning Success. Wiley-Blackwell.

• Haraldsson, K., Berndtsson, I., & Hakeberg, M. (2012). The use of Brain Gym in dentistry: An exploratory study. European Journal of Dental Education, 16(1), 34–38.

• Hill, L. (2001). The effect of physical activity on reading readiness. Perceptual and Motor Skills, 93(2), 647–650.

• Masgutova, S. (2011). Neuro-Sensory-Motor Reflex Integration Program. International Dr. Svetlana Masgutova Institute.

• Schaaf, R. C., & Mailloux, Z. (2015). Clinician’s Guide for Implementing Ayres Sensory Integration: Promoting Participation for Children with Autism. Journal of Autism and Developmental Disorders, 45(11), 3245–3260.

• Shaffer, R. J., Jacokes, L. E., Cassily, J. F., Greenspan, S. I., Tuchman, R. F., & Stemmer, P. J. (2001). Effect of Interactive Metronome training on children with ADHD. American Journal of Occupational Therapy, 55(2), 155–162.

• Shaywitz, S. (2003). Overcoming Dyslexia. Alfred A. Knopf.

• Siegel, D. J. (2012). The Whole-Brain Child. Bantam Books.