1. How Do We Construct the Outside World?
Sensation – detecting physical energy from the environment and encoding it as neural signals
Perception – the process of selecting, organising and interpreting sensory information, enabling us to recognize meaningful objects and events.
SENSATION  PERCEPTION = MEANING

2. Selective Attention
At any moment, our awareness focuses (like a flashlight beam in the dark) on a limited aspect of all that we experience.
Some researchers believe that ever second our five senses take in 11,000,000 bits of information (while we are conscious of 40 of them)

3. Inattentional Blindness
Failing to see visible objects when our attention is directed elsewhere

4. Psychology and Optical Illusions
Psychologists LOVE visual illusions, because they reflect visions preeminence among our senses
Fun Fact: When vision competes with one of our other senses vision usually wins (this is called visual capture)

5. Perceptual Consistency
Perceiving objects as unchanging (e.g., having consistent lightness, colour, shape, and size) even as illumination and retinal images change

6. Are the lines straight or bent?

7. Colour Consistency
Colour Perception

9. Size – Distance Relationship

10. Shape Constancies
Ebbinghaus Illusion - In the best-known version of the illusion, two circles of identical size are placed near to each other and one is surrounded by large circles while the other is surrounded by small circles; the first central circle then appears smaller than the second central circle.

11. Lightness Constancy

12. Perceptual Set
Our experiences assumptions and expectations may give us a mental predisposition that greatly influences what we perceive

14. Movement?

17. Multistable Perception

19. Count the Fs
FINISHED FILES ARE THE RE- SULT OF YEARS OF SCIENTIF- IC STUDY COMBINED WITH THE EXPERIENCE OF YEARS

20. Try Reading This
Aoccdrnig to a rscheearch at Cmabrigde Uinervtisy, it deosn't mttaer in waht oredr the ltteers in a wrod are, the olny iprmoetnt tihng is taht the frist and lsat ltteer be at the rghit pclae. The rset can be a toatl mses and you can sitll raed it wouthit porbelm. Tihs is bcuseae the huamn mnid deos not raed ervey lteter by istlef, but the wrod as a wlohe.

21. Sound Illusions Falling Bells Drum Beat Phantom Voices? McGurk Effect
Can You Hear This?