Stress appraisal and emotion regulation mediate the association between mindfulness and affect in cancer patients: Differential mechanisms for positive and negative affect.

Objective: Cancer patients are at an increased risk for affective problems, including feelings of anxiety and depression. Mindfulness has been linked to an array of benefits for affective functioning in various populations including cancer patients, but the mechanisms underlying this relationship are still poorly understood. Based on emotion-regulation and stress-coping models, this study examined the potential mediating role of stress appraisal and coping strategies in the associations between mindfulness and cancer patients' positive and negative affect.

Evaluation of Autonomic Nervous System, Saliva Cortisol Levels, and Cognitive Function in Major Depressive Disorder Patients.

Major depressive disorder (MDD) is associated with changes in autonomic nervous system (ANS) and cognitive impairment. Heart rate variability (HRV) and Pulse pressure (PP) parameters reflect influences of the sympathetic and parasympathetic nervous system. Cortisol exerts its greatest effect on the hippocampus, a brain area closely related to cognitive function.