Generalized Slowing of Resting-State Neural Oscillations in People With Schizophrenia.

Background: Recent interest in how neural oscillations reflect the flow of information through the brain has led to partitioning electroencephalography (EEG) recordings into periodic (i.e., oscillatory) and aperiodic (i.

Item response theory-based psychometric analysis of the Short Warwick-Edinburgh Mental Well-Being Scale (SWEMWBS) among adolescents in the UK.

Background: Middle and late adolescence is the period in a person's life that is most vulnerable to mental health problems. To enable an evidence base that can support policies to prevent such problems, it is crucial to have good quality, reliable, and accurate measurement tools for mental well-being. One of them is the Short Warwick-Edinburgh Mental Well-Being Scale (SWEMWBS).

Neural indicators of initial control rather than early maintenance of attention predict impaired visual attention in schizophrenia.

Attentional filtering has long been suggested to be a core deficit of schizophrenia. Recent work has emphasized the important distinction between , which involves the voluntary selection of a particular stimulus for focused processing, and , which involves the mechanisms that actually enhance the stimulus selected via filtering processes. We recorded electroencephalography data from people with schizophrenia (PSZ), their first-degree relatives (REL) and healthy controls (CTRL) during performance of a resistance to attentional capture task that tapped attentional control and implementation of selection measured during a brief period of attentional maintenance.

Limited Consistency and Strength of Neural Oscillations During Sustained Visual Attention in Schizophrenia.

Background: Neural oscillations support perception, attention, and higher-order decision making. Aberrations in the strength or consistency of these oscillations in response to stimuli may underlie impaired visual perception and attention in schizophrenia. Here, we examined the phase and power of alpha oscillations (8-12 Hz) as well as aspects of beta and theta frequency oscillations during a demanding visual sustained attention task.

Individual alpha peak frequency is slower in schizophrenia and related to deficits in visual perception and cognition.

The brain at rest generates cycles of electrical activity that have been shown to be abnormal in people with schizophrenia. The alpha rhythm (~ 10 Hz) is the dominant resting state electrical cycle and each person has a propensity toward a particular frequency of oscillation for this rhythm. This individual alpha peak frequency (IAPF) is hypothesized to be central to visual perceptual processes and may have downstream influences on cognitive functions such as attention, working memory, or problem solving.

Aortic valve endocarditis with root abscess causing superior vena cava obstruction: a case report.

Background: To our knowledge, we report the first case of endocarditis with root abscess causing compressive superior vena cava (SVC) obstruction.

Case Summary: An 84-year-old gentleman with previous tissue aortic valve replacement presented with fevers and systemic upset. Blood cultures grew and transoesophageal echocardiogram identified prosthetic valve vegetations with an associated root abscess.

Applying Prospect Theory to Participation in a CAPI/Web Panel Survey.

Prospect theory states that the influential power of avoiding negative outcomes is stronger than that of achieving positive outcomes. In a survey context, this theory has been tested with respect to not only participation in a CATI survey, but also giving consent to data linkage in CATI surveys. No study, however, has tested the theory with respect to participation in a CAPI or web survey.

Paralytic ileus precipitating platypnoea-orthodeoxia after right pneumonectomy.

A 78-year-old female underwent a right pneumonectomy for a neuroendocrine tumour. In the early postoperative phase, she developed a paralytic ileus and went on to develop breathlessness and orthostatic desaturation, which characterizes platypnoea-orthodeoxia. She was found to have an intra-atrial shunt on bubble echo, with equal atrial pressures.

Can targeted cover letters improve participation in health surveys? Results from a randomized controlled trial.

Background: Improving response rates in epidemiologic studies is important for the generalizability of the outcome. The aim of this study was to examine whether it can be advantageous for participation to target different versions of the cover letters to different sample subgroups.

Methods: A randomized trial was incorporated in a cross-sectional health survey in Denmark (n = 25,000) where a motivational sentence in the cover letter intended to heighten perceptions of relevance of the survey was varied among 11 sample subgroups (treatment groups).

Impaired retrieval processes evident during visual working memory in schizophrenia.

Prominent working memory (WM) deficits have been observed in people with schizophrenia (PSZ) across multiple sensory modalities, including the visuospatial realm. Electrophysiological abnormalities noted during early visual processing as well as later cognitive functions in PSZ may underlie deficiencies in WM ability, though the mechanisms linking behavior to neural responses are not well understood. WM dysfunction has also been observed in biological relatives of PSZ (REL) and therefore may be a manifestation of genetic liability for the disorder.