The term psychoneuroimmunology is associated with which of the following ?
The relations between psychological factors, brain and immune system
Psychoneuroimmunology (PNI), a term introduced by Robert Ader in the 1970s–80s, is the study of interactions between psychological processes, the nervous and endocrine systems, and the immune system.
Ader and Cohen's (1975) demonstration that immunosuppression could be classically conditioned in rats showed that the brain can influence immunity. Later work, such as Kiecolt-Glaser's studies of exam stress and caregiving, showed that stress slows wound healing and weakens immune responses.
The other options name only narrow biochemical links (endocrine-lymphatic, endorphins with hormones, serotonin with endorphins) and leave out the defining element of PNI: the psychological factors acting through the brain on the immune system.
Hence, the answer is The relations between psychological factors, brain and immune system.
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How many of the statements given above are correct?
