/sci/ - Science & Math

>>11785021
The way human eyes interpret signal is based on 2D representations of 3D objects. Our eyes, save for the curvature of the eye itself will only receive light as it's reflected off surfaces. Thus the image of what we see is flat and arriving all at once due to the speed at which light travels. 2D. We see it or interpret it as 3D because our cones pick up the shape of what we see via colors to aid our reconstruction of depth.
This is why depth illusions like artwork are visible to you and me and work on people.

However, a dolphin will see *pic related* and immediately know if it's concave or convex based on latency of sound and signal reverberations.
>>11785021
Exactly like an ultrasound.

Schizophrenics apparently see two different faces. Is this true?