PSYC 2390 Lecture Notes - Lecture 9: Vestibular System, Superior Colliculus, Retina
9 Jul 2018
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Our ability to precise motion starts for the retina two types of cells in the retime parvo and mango cells.
Mango cells are responsible for motion detection.
The superior colliculus is responsible for eye movement
The strait cortex also has cells responsible to motion.
Stroboscopic motion
Flash --- 200 ms or more of darkness ----- Flash
In kittens dues to stroboscopic motion they don’t develop proper motion perception.
The medial temporal cortex
MT when damaged produces cerebral akianopsia.
The medial superior temporal cortax can be stimulated by a spiral spinning. Stimmultaes the cells that
tell you if it is going away from you or towards you (or appears to be…)
Induces self-motion illusion.
You think your moving but actually you are stationary but your surroundings are moving. (Train
Illusion)
Simulator Adaption syndrome your eyes are telling you that you are moving (if there is a contridition
between vision and other stimuli, vision usually wins) but vestibular system tells you that you are not
sometimes people will throw up (Like car sickness). In sever cases this can happen to people in
elevators.
There is a tendency to underestimate the speed of a train. Because it large people tend to think its large.
Thus If there are large objects your visual system tends to underestimate the speed like how you think a
plane is moving really slow.
corollary Discharge theory
Document Summary
Our ability to precise motion starts for the retina two types of cells in the retime parvo and mango cells. The superior colliculus is responsible for eye movement. The strait cortex also has cells responsible to motion. Flash --- 200 ms or more of darkness ----- flash. I(cid:374) kitte(cid:374)s dues to stro(cid:271)os(cid:272)opi(cid:272) (cid:373)otio(cid:374) they do(cid:374)"t develop proper (cid:373)otio(cid:374) per(cid:272)eptio(cid:374). The medial superior temporal cortax can be stimulated by a spiral spinning. Stimmultaes the cells that tell you if it is going away from you or towards you (cid:894)or appears to (cid:271)e (cid:895) You think your moving but actually you are stationary but your surroundings are moving. (train. In sever cases this can happen to people in elevators. There is a tendency to underestimate the speed of a train. Because it large people tend to think its large.
