The “high-speed” connections between the front (marked as Lateral Prefrontal Cortex) and the back of the brain (marked as Posterior Cortex), such as arcuate fasciculus and superior longitudinal fasciculus, mediate  voluntary imagination and combinatorial language comprehension. The connections are marked Frontoposterior connections.

  
  Part of: Vyshedskiy A (2022) Language evolution is not limited to speech acquisition: a large study of language development in children with language deficits highlights the importance of the voluntary imagination component of language. Research Ideas and Outcomes 8: e86401. https://doi.org/10.3897/rio.8.e86401