One's ability to read, understand, and—ideally—remember a textbook paragraph is related to the area of psychology.

One's ability to read, understand, and—ideally—remember a textbook paragraph is related to the area of "cognitive" psychology.

Cognitive psychology refers to the investigation of mental procedures, for example, "consideration, dialect utilize, memory, discernment, critical thinking, imagination, and thinking". Much of the work got from cognitive psychology has been incorporated into different other current controls of psychological study. 

The holy roman empire.