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Induced mild systemic inflammation is associated with impaired ability to improve cognitive task performance by practice
Author(s) -
Paine Nicola J.,
Bosch Jos A.,
Ring Christopher,
Drayson Mark T.,
Veldhuijzen van Zanten Jet J. C. S.
Publication year - 2015
Publication title -
psychophysiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.661
H-Index - 156
eISSN - 1469-8986
pISSN - 0048-5772
DOI - 10.1111/psyp.12360
Subject(s) - cognition , inflammation , psychology , systemic inflammation , effects of sleep deprivation on cognitive performance , paced auditory serial addition test , elementary cognitive task , placebo , task (project management) , audiology , developmental psychology , medicine , neuroscience , immunology , cognitive impairment , pathology , alternative medicine , management , economics
Elevated inflammatory levels are linked to poorer cognition, but experimental confirmation is lacking. This report examined associations between cognitive performance and inflammation induced by exercise and vaccination. Thirty‐six (exercise N = 18, vaccination N = 18) healthy males completed a paced auditory serial addition test ( PASAT ), which is a multifaceted measure of cognitive function. The task was completed in placebo and elevated inflammation states. Improvements in PASAT performance were related to inflammation. In the exercise study, IL ‐6 during the first PASAT negatively correlated with PASAT improvement ( p = .022). In the vaccination study, increases in C ‐reactive protein between PASATs correlated with reduced PASAT improvement ( p < .001). Inflammation was linked to reduced improvements in cognitive performance. Further research should identify the specific cognitive functions affects and the underlying mechanisms.