Innovative approaches in investigating inter-beat intervals: Graph theoretical method suggests altered autonomic functioning in adolescents with ADHD.

Cardiac inter-beat intervals (IBIs) are considered to reflect autonomic functioning and self-regulatory abilities and are often investigated by traditional time- and frequency domain analyses. These analyses investigate IBI fluctuations across relatively long time series. The similarity graph algorithm is a nonlinear method that analyzes segments of IBI time series (i.

Diurnal variation of motor activity in adult ADHD patients analyzed with methods from graph theory.

Attention-deficit /hyperactivity disorder (ADHD) is a common neurodevelopmental syndrome characterized by age-inappropriate levels of motor activity, impulsivity and attention. The aim of the present study was to study diurnal variation of motor activity in adult ADHD patients, compared to healthy controls and clinical controls with mood and anxiety disorders. Wrist-worn actigraphs were used to record motor activity in a sample of 81 patients and 30 healthy controls.

Graph theory applied to the analysis of motor activity in patients with schizophrenia and depression.

Depression and schizophrenia are defined only by their clinical features, and diagnostic separation between them can be difficult. Disturbances in motor activity pattern are central features of both types of disorders. We introduce a new method to analyze time series, called the similarity graph algorithm.

Nonlinear analysis of motor activity shows differences between schizophrenia and depression: a study using Fourier analysis and sample entropy.

The purpose of this study has been to describe motor activity data obtained by using wrist-worn actigraphs in patients with schizophrenia and major depression by the use of linear and non-linear methods of analysis. Different time frames were investigated, i.e.

Actigraphic registration of motor activity reveals a more structured behavioural pattern in schizophrenia than in major depression.

Background: Disturbances in motor activity pattern are seen in both schizophrenia and depression. However, this activity has rarely been studied objectively. The purpose of the present study has been to study the complexity of motor activity patterns in these patients by using actigraphy.

Observational study of prevalence of long-term Raynaud-like phenomena and neurological side effects in testicular cancer survivors.

Background: Sensory neuropathy (paresthesias), tinnitus, hearing impairment, and Raynaud phenomena are side effects of cisplatin-based chemotherapy used to treat testicular cancer patients. We assessed the long-term occurrence of these side effects among testicular cancer survivors according to the treatment they received.

Methods: A total of 1814 men who were treated for unilateral testicular cancer in Norway during 1980-1994 were invited to participate in a national multicenter follow-up survey conducted during 1998-2002.

Normal overall mortality rate in Addison's disease, but young patients are at risk of premature death.

Context: Primary adrenal insufficiency (Addison's disease) is a rare autoimmune disease. Until recently, life expectancy in Addison's disease patients was considered normal.

Objective: To determine the mortality rate in Addison's disease patients.

Fear of recurrence in long-term testicular cancer survivors.

Objective: To explore fear of recurrence (FoR) in long-term testicular cancer survivors (TCSs) since FoR hardly has been examined in TCSs.

Methods: In a cross-sectional questionnaire study, 1336 TCSs at a mean of 11.4 years (SD 4.