Phrenology: The Study of Skull Shape and Behavior

The term phrenology, sometimes called craniology, refers to a now-discredited system for analyzing a person’s psychological strengths and weaknesses by attempting to correlate the size and shape of regions of the skull with the supposed functions of the underlying areas of the brain.

Phineas Gage: His Accident and Impact on Psychology

The case of Phineas Gage has been of huge interest in the field of psychology and is a largely speculated phenomenon.
Gage suffered a severe brain injury from an iron rod penetrating his skull, which he miraculously survived.
After the accident, Gage’s personality was said to have changed as a result of the damage to the frontal lobe of his brain.