Electrophysiological Study on Cognitive Function in Systemic Lupus Erythematosus Patients With Previous Neuropsychiatric Involvement.

This study aimed to evaluate P300 as an electrophysiological marker of cognitive function in patients with systemic lupus erythematosus (SLE) who had previous neuropsychiatric (NPSLE) involvement and were diagnosed to have cognitive impairment by standard neuropsychological tests. Event-related potentials (ERPs) were assessed by the auditory and visual oddball paradigms. Amplitude and latency of P300 at the frontal (Fz), central (Cz), and parietal (Pz) regions were determined and compared with controls.

Changes in positive affect and mindfulness predict changes in cortisol response and psychiatric symptoms: a latent change score modelling approach.

Objective: This study examined whether and how changes in positive affect and mindfulness predicted changes in cortisol secretion and psychological distress in adaptation to examination stress.

Design: A sample of 105 college students completed a questionnaire set and provided salivary samples before (T1), during (T2) and after (T3) an examination period.

Results: Latent change score modelling revealed that T1-T2 and T2-T3 increases in mindfulness were associated with larger T2-T3 decrease in area-under-the-curve ground of cortisol awakening response (CARg), whereas T2-T3 increases in both positive affect and mindfulness were associated with larger T2-T3 decrease in anxiety symptoms (comparative fit index = .

The interplay between sleep and mood in predicting academic functioning, physical health and psychological health: a longitudinal study.

Objectives: Existing studies on sleep and behavioral outcomes are mostly correlational. Longitudinal data is limited. The current longitudinal study assessed how sleep duration and sleep quality may be causally linked to daytime functions, including physical health (physical well-being and daytime sleepiness), psychological health (mood and self-esteem) and academic functioning (school grades and study effort).

Perceived control mediates the prospective impact of relationship quality in the year after colorectal cancer diagnosis.

Background: Negative cancer-related intrusive thoughts reduce the benefit of relationship quality on the psychological adjustment of cancer patients. Little is known about the role of perceived control over cancer-related problems in the association between relationship quality and adjustment.

Purpose: This study examined whether perceived personal control (i.