Findings from a large study indicated that approximately 50% of the population in the United States, at some point over the course of their lives, experience symptoms that meet the criteria of:

Psychological disorder

Explanation:

Psychological disorder: In psychology, the term "psychological disorder" is also denoted as "psychiatric disorder" or "mental disorder".

A psychological disorder is described as a specific pattern of psychological or behavioral symptoms that tends to affect different areas of an individual's life. Therefore, the given disorder ought to create distress for an individual who's experiencing or witnessing these symptoms.

Example: Anxiety disorders, personality disorders, depression, eating disorders, etc.

In the question above, the given statement represents "psychological disorder".

first, the romans stayed isolated because they had to defend their own territories from neighboring cities that were harassing them, like the etruscans. second, once the romans managed to defeat their neighbors, and started to expand their territory, they started to build roads and bridges. finally, now that the romans have covered their territory with roads functioning as highways, they could mobilize their legions faster to assemble larger military units in a specific place

disorders of the brain include both behavior disorders and other psychiatric illnesses. the primary difference between a behavior disorder and another type of psychiatric disorder is the presence of choice. psychiatric conditions are considered to be involuntary while in behavior disorders, choices are essential.