He has a deep interest in parapsychology.

Cell biology is the study of the structure and function of cells, which are the basic units of life.

Cytogenetics is a science that studies the structure and function of chromosomes and genes.

Functional analysis is a branch of mathematics that studies the properties of functions in infinite-dimensional spaces.

He is an expert in topology.

I am very interested in sociolinguistics.

He is an expert in physical anthropology.

He is an expert in physical anthropology, conducting research on human evolution.

Gestalt psychology is an important means to understand human cognitive processes.

Projective geometry is a branch of mathematics that studies geometric objects such as points, lines, and planes and their relationships.