Blar i NTNU Open på forfatter "Ingvaldsen, Sigrid Hegna"

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    • A biofeedback app for migraine: Development and usability study 

      Ingvaldsen, Sigrid Hegna; Tronvik, Erling Andreas; Brenner, Eiliv; Winnberg, Ingunn; Olsen, Alexander; Gravdahl, Gøril Bruvik; Stubberud, Anker (Peer reviewed; Journal article, 2021)
      Background: Biofeedback is effective in treating migraines. It is believed to have a beneficial effect on autonomous nervous system activity and render individuals resilient to stressors that may trigger a migraine. However, ...

    • Forecasting migraine with machine learning based on mobile phone diary and wearable data 

      Stubberud, Anker; Ingvaldsen, Sigrid Hegna; Brenner, Eiliv; Winnberg, Ingunn Grøntveit; Olsen, Alexander; Gravdahl, Gøril Bruvik; Matharu, Manjit Singh; Nachev, Parashkev; Tronvik, Erling Andreas (Peer reviewed; Journal article, 2023)
      Introduction Triggers, premonitory symptoms and physiological changes occur in the preictal migraine phase and may be used in models for forecasting attacks. Machine learning is a promising option for such predictive ...

    • QEEG and Infra-Low Frequency Neurofeedback Training in Fibromyalgia: A pilot Study 

      Ingvaldsen, Sigrid Hegna (Master thesis, 2019)
      Bakgrunn: Fibromyalgi (FM) er en kompleks kronisk smertesykdom karakterisert av diffus smerte, fatigue (utmattelse), og fibrotåke (kognitive vanskeligheter) som i betydelig grad påvirker pasientenes livskvalitet. Årsaken ...

    • Retinal structure and visual pathway function at school age in children born extremely preterm: a population-based study 

      Ingvaldsen, Sigrid Hegna; Moljord, Kyrre; Grøtting, Arnstein; Omland, Petter Moe; Dammann, Olaf; Austeng, Dordi Kristine; Morken, Tora Sund (Peer reviewed; Journal article, 2023)
      Background Children born extremely preterm (gestational age < 28 weeks) show reduced visual function even without any cerebral or ophthalmological neonatal diagnosis. In this study, we aimed to assess the retinal structure ...

    • Visuopathy of prematurity: Brain MRI alterations, neurodevelopment, and visual outcomes in children and adults born preterm 

      Ingvaldsen, Sigrid Hegna (Doctoral theses at NTNU;2023:301, Doctoral thesis, 2023)
      Being born preterm increases the risk of long-term neurodevelopmental challenges and adverse visual outcomes, such as reduced visual function. The adverse outcomes seem to be present even without cerebral damage or severe ...

    • Visuopathy of prematurity: is retinopathy just the tip of the iceberg? 

      Ingvaldsen, Sigrid Hegna; Morken, Tora Sund; Austeng, Dordi; Dammann, Olaf (Peer reviewed; Journal article, 2021)
      Background: Chronic brain pathology and pre-stroke cognitive impairment (PCI) is predictive of post-stroke dementia. The aim of the current study was to measure pre-stroke neurodegenerative and vascular disease burden found ...