Results of the linear regressions for cognitive performance and the physiological parameters (DHEA or BDNF) in younger and older subjects.

<p>Results of the linear regressions for cognitive performance and the physiological parameters (DHEA or BDNF) in younger and older subjects.</p

Age Effects on Cognitive and Physiological Parameters in Familial Caregivers of Alzheimer's Disease Patients - Fig 1

<p>Age and/or stress effects at 8AM and 10PM based on the saliva levels of cortisol (a), DHEA (b) and the cortisol/DHEA ratio (c). The results expressed as the means ± standard error. * p < 0.05.</p

Performances (mean ± standard error) of younger and older controls and caregivers on neuropsychological tests.

<p>Performances (mean ± standard error) of younger and older controls and caregivers on neuropsychological tests.</p

Demographic and psychiatric measures (mean ± standard error) of the different age groups of controls and caregivers.

<p>Demographic and psychiatric measures (mean ± standard error) of the different age groups of controls and caregivers.</p