Frank J van Schalkwijk

Frank J van Schalkwijk
Hertie-Institute for Clinical Brain Research · Department of Neurology

PhD

About

10
Publications
1,928
Reads
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145
Citations
Introduction
Additional affiliations
October 2019 - March 2020
University of Salzburg
Position
  • Senior Researcher
October 2015 - October 2019
University of Salzburg
Position
  • PhD Student
Description
  • Keywords: Epilepsy; sleep; memory consolidation; heart-rate variability; high-density EEG.
October 2015 - September 2018
Paracelsus Medical University Salzburg
Position
  • Researcher
Description
  • Keywords: Epilepsy; sleep; memory consolidation; intracranial EEG, high-density EEG.

Publications

Publications (10)
Article
Full-text available
Memory complaints are frequently reported by patients with epilepsy and are associated with seizure occurrence. Yet, the direct effects of seizures on memory retention are difficult to assess given their unpredictability. Furthermore, previous investigations have predominantly assessed declarative memory. This study evaluated within-subject effects...
Article
Full-text available
We aimed to obtain reliable reference charts for sleep duration, estimate the prevalence of sleep complaints across the lifespan and identify risk indicators of poor sleep. Studies were identified through systematic literature search in Embase, Medline and Web of Science (9 August 2019) and through personal contacts. Eligible studies had to be publ...
Article
Full-text available
Sleep and memory studies often focus on overnight rather than long‐term memory changes, traditionally associating overnight memory change (OMC) with sleep architecture and sleep patterns such as spindles. In addition, (para‐)sympathetic innervation has been associated with OMC after a daytime nap using heart rate variability (HRV). In this study we...
Data
Figure S1. Word‐pair association study design. Figure S2. Visualization of the MTT. Figure S3. Behavioral performance for both WPT and MTT during control conditions. Figure S4. Reports on sleepiness using the Stanford Sleepiness Scale (M ± SEM). Figure S5. Procedural mirror‐tracing performance for nap and wake groups by task order (M ± SEM). F...
Article
Full-text available
Disturbed sleep can negatively affect overnight memory retention as well as new learning the subsequent day. In healthy participants, positive associations between memory performance and sleep characteristics (e.g., time spent in slow-wave sleep [SWS]) have been detected. In a previous study, we found that SWS was much reduced in patients with foca...
Article
Full-text available
Many studies investigating sleep and memory consolidation have evaluated full-night sleep rather than alternative sleep periods such as daytime naps. This multi-centre study followed up on, and was compared with, an earlier full-night study (Schabus et al., 2004) investigating the relevance of daytime naps for the consolidation of declarative and p...
Article
Sleep has been shown to be important to memory. Both sleep and memory have been found to be abnormal in patients with epilepsy. In this study, we explored the effects that nocturnal epileptiform discharges and the presence of a hippocampal lesion have on sleep patterns and memory. Twenty-five patients with focal epilepsy who underwent a 24-hr ambul...
Article
Academic expectations and demands become primary sources of stress during adolescence, negatively affecting sleep. To cope with stress, adolescents may turn to social support figures. The present study tested the extent of main and moderating effects of various sources of social support on the association between stress and sleep. Adolescents (n =...