Perception is organizing and interpreting sensory information to understand environment. Sensory signals travel through nervous system from physical or chemical stimulation. Perception is shaped by learning, memory, expectation, and attention. Brain processes sensory information outside conscious awareness
Closed-eye hallucinations occur when eyes are closed or in darkened rooms. Five levels exist, with Level 1 and 2 being most common. Visual noise appears as random light/dark regions without order. Level 2 shows light/dark flashes that can be controlled. Level 3 displays patterns, motion, and color
Born in Istanbul 51 years ago with one eye developing prematurely. Started drawing at age 6, painting at 18, using oils and acrylics at 42. Known for realistic paintings depicting houses, mountains, and faces
Color is described by hue, lightness, and saturation. Visible light consists of electromagnetic radiation of specific wavelengths. Color perception depends on vision, light intensity, and individual interpretation
Base curve measures interior curvature of contact lenses. BC affects lens fit and function, similar to shoe fit. Measured in tenths of millimeter
Cats have unique features like tapetum lucidum and nictitating membrane. They have 6-8 times more rod cells than humans. Their pupils are vertical to protect retina during day. Their corneas are larger than humans