Paintings by some of the world's most famous artists could reveal subtle signs of brain disease...

The video explores the link between art and brain diseases like Alzheimer's and Parkinson's. Researchers used algorithms to analyze the fractal dimensions of paintings by artists such as Salvador Dali and Pablo Picasso. The study revealed changes in the structural complexity of paintings, which may indicate the artist's health. The research draws parallels to early signs of Alzheimer's in President Reagan's speech and writing. Portrait artist Kathy Barker discusses how art can reflect an artist's health through expression and movement.

What method is used to calculate the fractal dimension of paintings?

• Color analysis

• Box counting method

• Brush stroke analysis

• Geometric scaling

Which artists' techniques were analyzed to study their health?

• Salvador Dali and Pablo Picasso

• Andy Warhol and Jackson Pollock

• Vincent van Gogh and Claude Monet

• Leonardo da Vinci and Michelangelo

How many paintings were digitally decoded in the study?

• Over 2000

• Over 1500

• Over 2500

• Over 1000

What did observers note about President Reagan before his Alzheimer's diagnosis?

• Changes in his diet

• Changes in his social behavior

• Changes in his speech and writing

• Changes in his physical appearance

According to Kathy Barker, what aspect of an artist's work can reveal their health?

• The choice of colors

• The subject matter

• The size of the canvas

• The energy and movement in brush strokes