Mental Construction of Reality

The mental construction of reality What is the link between perception and reality?

Hermann Grid Where are the grey dots? Not on the paper, so where?

What do you see? Where are these ‘non-existent’ shapes?

What is going on? sense data sense data Brain works out what is the best story it can tell your mind based on the sense data

What ‘story’ is your brain telling you? that the central area is curved, three dimensional?

What story is your brain telling you? that the image is three dimensional?

What is the real pattern here? Does your brain ‘flip’ between the diamonds and the rectilinear pattern?

Imagine ,[object Object],[object Object],You are in a noisy room with lots of people talking, including yourself. You can’t hear the other conversations, but suddenly you hear your name mentioned across the room.

[object Object],[object Object],In each eye there is a blind spot. The blind spot is a small area near the centre of the visual field where the optic nerve leaves the eye to go to the brain. There are no light receptors in this small area (hence the name blind spot).

[object Object],[object Object],Professional tea tasters can distinguish between literally thousands of brands of tea. Wine tasters can tell you the grape, year, country, region, vineyard and even which side of the valley a particular bottle of wine has come from. But these professionals have no more taste buds than you or I do. They have no more nerves in their tongues, and those they do have are not any more sensitive than the norm.

Upside-down glasses ,[object Object],[object Object],[object Object]

The mental construction of reality ,[object Object],[object Object],[object Object],[object Object],[object Object],If the brain has to make sense of the sensory data, what does it use to make sense of this?

Should we trust eye-witnesses?

How accurate are memories? 2 mins 2 mins 2 mins Bugs Bunny Effect

The Case of Jean Charles de Menezes, killed at Stockwell Tube, July 2005 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

The Case of Jean Charles de Menezes, killed at Stockwell Tube, July 2005 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

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Mental Construction of Reality

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Mental Construction of Reality