<human>: Is "Although unpleasantness is an essential part of the IASP definition of pain, it is possible to induce a state described as intense pain devoid of unpleasantness in some patients, with morphine injection or psychosurgery." a good answer to the question "Which type of injection has caused patients to report they have pain but aren't bothered by it?"
OPTIONS:
- yes
- no
<bot>: yes