Related to the study of the skull and its relation to character.
El enfoque frenológico antiguo se basa en la idea de que las características mentales están relacionadas con la forma del cráneo.
The ancient phrenological approach is based on the idea that mental characteristics are related to the shape of the skull.
El estudio frenológico fue popular en el siglo XIX, aunque hoy se considera obsoleto.
Phrenological study was popular in the 19th century, although today it is considered obsolete.