{{More footnotes needed|date=February 2024}} The '''fixation reflex''' is that concerned with attracting the eye on a peripheral object. For example, when a light shines in the periphery, the eyes shift gaze on it. It is controlled by the occipital lobe of the cerebral cortex, corroborated by three main tests:
# Removal of cortex causes shutdown of this reflex # Drawing a figure on the cortex surface will cause eye movements in the direction traveled # Detecting an image by recording the actual signals from the eyes
Older research declares that a motor pathway from the occipital cortex to the brainstem motor neurons was via the superior colliculi. This is the case in lower animals, but in humans, the theory that eye-muscle nuclei (oculomotor nucleus and Edinger–Westphal nucleus) aside from the superior colliculi of the midbrain is now generally held.
When an object is focused directly at an object but the eyes drift off their target, the fixation reflex keeps the eyes focused on the original object, albeit moving itself.
==See also== {{Portal|Medicine|Science}} <!-- please add a short description WP:SEEALSO, via {{subst:AnnotatedListOfLinks}} or {{Annotated link}} --> {{div col|colwidth=20em|small=yes}} * {{Annotated link |Fixation (visual)}} * {{Annotated link |Physiologic nystagmus|Nystagmus}} * {{Annotated link |Saccade}} * {{Annotated link |Vestibulo-ocular reflex}} * {{Annotated link |Oculomotor nerve}} * {{Annotated link |Oculomotor nucleus}} * {{Annotated link |Edinger–Westphal nucleus}} * {{Annotated link |Ciliary ganglion}} {{div col end}} <!-- alphabetical order please WP:SEEALSO -->
==Further reading== *"eye, human."Encyclopædia Britannica. 2008. Encyclopædia Britannica 2006 Ultimate Reference Suite DVD
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Category:Reflexes Category:Vision