How did Galen explain personality?

Centuries later, the influential Greek physician and philosopher Galen built on Hippocrates’s theory, suggesting that both diseases and personality differences could be explained by imbalances in the humors and that each person exhibits one of the four temperaments.

What did Hippocrates believe about personality?

Hippocrates’ temperament theory suggests that four bodily fluids (called humors)—namely, black bile, yellow bile, phlegm, and blood—directly affect an individual’s personality, behavior, and health (Johansson & Lynøe, 2008).

What was the first personality disorder identified?

The category “Manie sans delire” (meaning ‘mania without delusion’) coined by Pinel in the 18th Century appears to describe for the first time what is now known as a personality disorder. He described a set of patients who he thought to behave irrationally despite being in touch with reality.

What was galens theory?

According to Galen’s theory, the blood did not return to the liver or the heart. Instead, it would be consumed by the body, which meant that it needed to be constantly replenished. Sometimes the liver might produce too much blood, and the body became imbalanced, leading to illness.

Who is the founder of personality disorder?

Instead, Freud and his camp theorized the etiology (causes) of behavioral and emotional problems. Although our modern understanding of personality disorders has advanced significantly beyond these earlier theories of Sigmund Freud, he is still often credited as the “father of psychology.”

What are the different personality disorders?


  • Antisocial personality disorder.
  • Avoidant personality disorder.
  • Borderline personality disorder.
  • Dependent personality disorder.
  • Histrionic personality disorder.
  • Narcissistic personality disorder.
  • Obsessive-compulsive personality disorder.
  • Paranoid personality disorder.