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 ...

    • Mental health, pain and tiredness in adults born very preterm or with very low birthweight 

      Hollund, Ingrid Marie Husby; Aakvik, Kristina Anna Djupvik; Benum, Silje Dahl; Ingvaldsen, Sigrid Hegna; Lydersen, Stian; Tikanmäki, Marjaana; Hovi, Petteri; Räikkönen, Katri; Kajantie, Eero Olavi; Johnson, Samantha; Marlow, Neil; Baumann, Nicole; Wolke, Dieter; Indredavik, Marit Sæbø; Evensen, Kari Anne Indredavik (Journal article; Peer reviewed, 2023)
      Aim: Adults born preterm have increased risk of mental health problems and other neurodevelopmental conditions. We aimed to investigate associations of mental health with pain and tiredness in adults born very preterm (VP; ...

    • 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 ...

    • Visual function correlates with neurodevelopment in a population cohort of school-aged children born extremely preterm 

      Ingvaldsen, Sigrid Hegna; Hansen, Tor Ivar; Håberg, Asta; Moholdt, Viggo Andreas; Evensen, Kari Anne Indredavik; Dammann, Olaf; Austeng, Dordi Kristine; Morken, Tora Sund (Peer reviewed; Journal article, 2023)
      Aim To investigate visual function and neurodevelopment in a geographically defined population cohort of school-aged children born extremely preterm. Methods All children born extremely preterm in Central Norway between ...

    • Visual function in adults born preterm with very low birth weight—A two-country birth cohort study 

      Kulmala, Maarit; Jørgensen, Anna Perregaard Munch; Aakvik, Kristina Anna Djupvik; Jussinniemi, Laura; Benum, Silje Dahl; Ingvaldsen, Sigrid Hegna; Austeng, Dordi Kristine; Kajantie, Eero Olavi; Evensen, Kari Anne Indredavik; Majander, Anna; Morken, Tora Sund (Journal article; Peer reviewed, 2023)
      Purpose: The purpose of the study was to investigate visual function and vision-related general health in adults that were born preterm with very low birth weight (VLBW: birth weight < 1500 g) in their 30s–40s. Methods: ...

    • Visual outcomes and their association with grey and white matter microstructure in adults born preterm with very low birth weight 

      Ingvaldsen, Sigrid Hegna; Jørgensen, Anna Perregaard Munch; Grøtting, Arnstein; Sand, Trond Halfdan; Eikenes, Live; Håberg, Asta; Indredavik, Marit Sæbø; Lydersen, Stian; Austeng, Dordi Kristine; Morken, Tora Sund; Evensen, Kari Anne Indredavik (Peer reviewed; Journal article, 2024)

    • 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 ...