What is the primary function of the tectospinal tract?

The primary function of the tectospinal tract is to facilitate reflexive head and trunk movements in coordination with eye movements. This tract originates in the superior colliculus of the midbrain, which is involved in visual processing and reflexes. When visual stimuli are detected, the tectospinal tract plays a crucial role in orienting the head and neck toward the stimulus, allowing for a coordinated response that ensures the eyes remain focused on the target. This connection between visual input and motor response is essential for effective interaction with the environment and is particularly important for reflexive actions that require quick adjustments to visual stimuli.

The tectospinal tract is thus integral to the integration of sensory perception (especially visual) and motor response, illustrating its role in coordinating movement based on what is seen.