How does the Japanese nurse treat mcmurphy and chief in the disturbed ward?

In Ken Kesey's "One Flew Over the Cuckoo's Nest," the Japanese nurse, known as Nurse Ratched, employs a strict and authoritarian approach to manage the disturbed ward. She uses manipulation and intimidation to maintain control over the patients, including McMurphy and Chief Bromden. Her methods involve psychological tactics, such as public humiliation and strict adherence to rules, which serve to suppress any form of rebellion or individuality. This creates a tense atmosphere that highlights the power dynamics between the staff and the patients.