Category Archives: perception

A Lot Of Americans Are Living In A Cave Of Illusions

Via: Wikipedia

The Allegory of the Cave (also known as the Analogy of the CavePlato’s Cave or the Parable of the Cave) is presented by the Greek philosopher Plato in his work The Republic (514a-520a) to compare “…the effect of education and the lack of it on our nature“. It is written as a dialogue between Plato’s brother Glaucon and his mentor Socrates, narrated by the latter. The Allegory of the Cave is presented after the metaphor of the sun (508b–509c) and the analogy of the divided line(509d–513e). All three are characterized in relation to dialectic at the end of Book VII and VIII (531d–534e).

Plato has Socrates describe a gathering of people who have lived chained to the wall of a cave all of their lives, facing a blank wall. The people watch shadows projected on the wall by things passing in front of a fire behind them, and begin to ascribe names to these shadows. According to Plato’s Socrates, the shadows are as close as the prisoners get to viewing reality. He then explains how the philosopher is like a prisoner who is freed from the cave and comes to understand that the shadows on the wall do not make up reality at all, as he can perceive the true form of reality rather than the mere shadows seen by the prisoners.

Wikipedia: Allegory Of the Cave

Platos’ Cave Analysis

Platos’ Cave Text

 

The Chemistry of Fear – Bytesize Science

Via: youtube

With Halloween just a few days away, millions are flocking to horror films and haunted houses for their annual dose of terror. Our latest video uncovers the chemistry behind the spine-tingling sense of fear.

“Fear is the expectation or the anticipation of possible harm… We know that the body is highly sensitive to the possibility of threat, so there are multiple pathways that bring that fear information into the brain,” explains Abigail Marsh, Ph.D., associate professor of psychology at Georgetown University. Marsh’s research focuses on the neuroscience of fear and empathy in psychopaths, among other topics. In the video, she highlights the key brain chemicals and hormones involved in fear and the accompanying fight or flight response.

Produced by the American Chemical Society

Our Perception Of the World May Be Wrong: Descartes’ ‘Method Of Doubt’ Asks Important Questions

It is a well known fact, at least among conjurers, That the more intelligent the audience the more readily will they be deceived by conjuring  principles of which they have no knowledge: cause and effect are so rapidly associated that the unexpected denouement catches them off-guard.  (Edwin A. Dawes)

Via: Wikipedia

Cartesian doubt is a form of methodological skepticism associated with the writings and methodology of René Descartes.  Cartesian doubt is also known as Cartesian skepticismmethodic doubtmethodological skepticism, or hyperbolic doubt.

Cartesian doubt is a systematic process of being skeptical about (or doubting) the truth of one’s beliefs, which has become a characteristic method in philosophy. This method of doubt was largely popularized in Western philosophy by René Descartes (1596-1650), who sought to doubt the truth of all his beliefs in order to determine which beliefs he could be certain were true.

“Several years have now elapsed since I first became aware that I had accepted, even from my youth, many false opinions for true, and that consequently what I afterward based on such principles was highly doubtful; and from that time I was convinced of the necessity of undertaking once in my life to rid myself of all the opinions I had adopted, and of commencing anew the work of building from the foundation…”

— René Descartes , Meditation I, 1641

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Crazy Wayfarer Illusion

The ‘Method Of Doubt’

Strategy Of Descartes’ Method

Can You Trust What You See?

Via:http://io9.com/5907175/the-munker-illusion-destroys-your-faith-in-color

The Munker Illusion Destroys Your Faith In Color

It’s no secret that putting various colors together makes them look different. Put off-white next to black, and it looks completely bright. But did you know that, with the Munker Illusion, you can make something change color completely, right in front of your eyes?

The Munker Illusion is one of those illusions that works, even when you know the trick. Your brain knows that it’s making a mistake, but that doesn’t matter. You still see something that you know can’t be right.

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Munker-White Illusion

The Blue And The Green

Color Illusions