ILLUSIONS

 The evolution of human being has developed special frames to handle extremely difficult situations.  These are called illusions.  The brain tries to handle the difficult situation itself with builtin abilities with special tendencies or processes.  In fact what we perceive as reality is the reality our brain creates using the information it receives from the outer environment.

  “Visual illusions occur due to properties of the visual areas of the brain as they receive and process information. In other words, your perception of an illusion has more to do with how your brain works -- and less to do with the optics of your eye. ^[3] ”

  “Psychologist Richard Gregory classified optical illusions into physical, physiological and cognitive, subdivided in turn into fictions, ambiguities, paradoxes and distortions. These different effects involve distinct mechanisms and various levels of neural processing. ^[4] ”

  “Visual illusions are defined by the dissociation between the physical reality and the subjective perception of an object or event. When we experience a visual illusion, we may see something that is not there or fail to see something that is there. Because of this disconnect between perception and reality, visual illusions demonstrate the ways in which the brain can fail to re-create the physical world. ^[5] “

  Illusions are not limited to the visual domain.  Illusions may vary from social illusions to economical, visual to bodily felt ones and even more.

 REFERENCES:

[1] Emotional Hangover? NYU Researchers Find that There is Dec 31, 2016 New York City

[2] Sartre, Sketch for a Theory of Emotions

[3] CARI NIERENBERG, Optical Illusions: When Your Brain Can't Believe Your Eyes, ABC News Medical November 2008

[4] Why Optical Illusions Fool Our Brain, Open Mind October 2020

[5] Susana Martinez-Conde, Stephen L. Macknik, The Neuroscience of Illusion, How tricking the eye reveals the inner workings of the brain, Scientific American