Salivary catecholamines in examinational stress and cognitive effort
Faculty of Social Sciences. Communication Sciences
Acta Universitatis Lodziensis: folia psychologica / Wydawnictwo Uniwersytetu Lodzkiego. - Lodz
, p. 89-107
In order to determine utility of salivary catecholamines in stress studies, samples were collected from 30 students before an exam and on an ordinary day. Subsequently, to examine the effect of cognitive effort on catecholamines, 31 volunteers, on two days, performed two sets of different cognitive tasks. Noradrenaline, adrenaline and dopamine levels were examined with HPLC-ED. Stressed group shown alleviated levels of dopamine, while levels of other substances remained unchanged. In the second group cognitive effort elicited elevated excretion of all three catecholamines. Given conflicting results from previous literature it appears that salivary adrenaline and noradrenaline might be useful as non-invasive markers of sympathetic activity in psychological research.