The longer your dog stares at you, the more you love her!
Originally posted on The brain is sooooo cool!:
Whenever I teach eye movements, I am reminded of how exciting they are. I like that eye movements appear mundane, common, and perhaps even uninteresting. They fly under most people’s wow-o-cool-o-radar, giving all the appearance of a nuts-and-bolts system without lofty aspirations. Despite this unpretentious appearance, eye movements are incredibly interesting and also of the utmost importance to our social selves. There is so much more to eye movements than may at first meet our gaze.
I remember first learning the basics of gaze control in graduate school. The system is delightfully logical and beautifully aligned with our vestibular system. But that is a story for another day. Today I want to tell three stories.
Unilateral eye movement
Virtually all eye movements are conjugate, meaning that the eyes both move and that they move in the same direction. Examples of this are:
- when looking to the left, both eyes move left
- when looking down, both eyes move down
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