Link to video: https://www.youtube.com/watch?v=_NL6RCFsiVg

In this detailed whiteboard-style episode, we explore the superior colliculus within the mesencephalon (midbrain) and its critical role in the autistic phenotype. Focusing on rapid visual processing, we explain how ~15% of retinal fibers bypass the thalamus to directly reach the superior colliculus for fast gaze orientation and saccades, while heightened gamma waves and imbalanced feedforward/feedback loops contribute to sensory overload, delayed eye movements, and challenges in attention modulation. Connections to the thalamus, frontal eye fields, basal ganglia, and cranial nerves are mapped out, underscoring the midbrain's evolutionary primacy ...