• Accuracy of physical examination for chronic lumbar radiculopathy 

      Iversen, Trond; Solberg, Tore; Romner, Bertil; Wilsgaard, Tom; Nygaard, Øystein Petter; Waterloo, Knut; Brox, Jens Ivar; Ingebrigtsen, Tor (Journal article; Tidsskriftartikkel; Peer reviewed, 2013)
      Background: Clinical examination of patients with chronic lumbar radiculopathy aims to clarify whether there is nerve root impingement. The aims of this study were to investigate the association between findings at clinical examination and nerve root impingement, to evaluate the accuracy of clinical index tests in a specialised care setting, and to see whether imaging clarifies the cause of chronic ...
    • Assessing a Sensory-Motor-Cognition Triad in Amnestic Mild Cognitive Impairment With Dichotic Listening While Walking: A Dual-Task Paradigm 

      Gorecka, Marta Maria; Vasylenko, Olena; Waterloo, Knut; Rodriguez-Aranda, Claudia (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-11-12)
      A contemporary topic in aging research relates to the significance of cognitive changes proper to mild cognitive impairment (MCI) to higher risk of falls and gait deteriorations. The present study addresses this question in the amnestic type of MCI (aMCI) by examining a triad of interrelated comorbidities occurring in the MCI condition: attentional impairments, hearing loss and gait disturbances. ...
    • Association of white matter integrity and gait speed during dual-tasking among community-dwelling elderly adults 

      Castro Chavira, Susana Angelica; Vangberg, Torgil Riise; Gorecka, Marta Maria; Vasylenko, Olena; Waterloo, Knut; Rodriguez-Aranda, Claudia (Conference object; Konferansebidrag, 2017)
    • Cerebrospinal fluid neurogranin/β-site APP-cleaving enzyme 1 predicts cognitive decline in preclinical Alzheimer's disease 

      Kirsebom, Bjørn-Eivind; Nordengen, Kaja; Selnes, Per; Waterloo, Knut; Torsetnes, Silje Bøen; Gísladóttir, Berglind; Brix, Britta; Vanmechelen, Eugeen; Bråthen, Geir; Hessen, Erik; Aarsland, Dag; Fladby, Tormod (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-11-10)
      <i>Introduction</i>: The cerebrospinal fluid neurogranin (Ng)/β-site amyloid precursor protein-cleaving enzyme 1 (BACE1) ratio may reflect synaptic affection resulting from reduced beta-amyloid (Aβ) clearance. We hypothesize that increased Ng/BACE1 ratio predicts the earliest cognitive decline in Alzheimer’s disease.<p> <p><i>Methods</i>: We compared Ng/BACE1 levels between cases with subjective ...
    • The Clinical Effectiveness of Web-Based Cognitive Behavioral Therapy With Face-to-Face Therapist Support for Depressed Primary Care Patients: Randomized Controlled Trial 

      Høifødt, Ragnhild Sørensen; Lillevoll, Kjersti; Griffiths, Kathleen M; Wilsgaard, Tom; Eisemann, Martin; Waterloo, Knut; Kolstrup, Nils (Journal article; Tidsskriftartikkel; Peer reviewed, 2013-08-05)
    • Cortisol levels and cognitive profile in major depression: A comparison of currently and previously depressed patients 

      Høifødt, Ragnhild Sørensen; Waterloo, Knut; Wang, Catharina Elisabeth Arfwedson; Eisemann, Martin; Figenschau, Yngve Anton; Halvorsen, Marianne (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-08-22)
      The association between depressive symptoms and elevated cortisol levels, and depression and cognitive functioning, has been less robust in outpatients with symptoms in the mild to moderate range. Furthermore, the association between elevated cortisol levels and cognitive functioning is unclear. In the present study, currently depressed (<i>n</i> = 37), previously depressed (<i>n</i> = 81) and never ...
    • Demographically adjusted CERAD wordlist test norms in a Norwegian sample from 40 to 80 years 

      Kirsebom, Bjørn-Eivind; Espenes, Ragna; Hessen, Erik; Waterloo, Knut; Johnsen, Stein Harald; Gundersen, Elisabeth; Sando, Sigrid Botne; Grøntvedt, Gøril Rolfseng; Timón, Santiago; Fladby, Tormod (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-03-08)
      <i>Background/Objective</i>: In recent years, several slightly younger cohorts have been established in order to study the preclinical and prodromal phases of dementia. The Consortium to Establish a Registry for Alzheimer’s Disease (CERAD) wordlist memory test (WLT) is widely used in dementia research. However, culturally adapted and demographically adjusted test norms for younger ages are ...
    • Demographically adjusted trail making test norms in a Scandinavian sample from 41 to 84 years 

      Espenes, Johan Jacob; Hessen, Erik; Eliassen, Ingvild Vøllo; Waterloo, Knut; Eckerström, Marie; Sando, Sigrid Botne; Timón, Santiago; Wallin, Anders; Fladby, Tormod; Kirsebom, Bjørn-Eivind (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-10-09)
      <i>Objective</i> - The trail making test (TMT) is one of the most widely used neuropsychological tests. TMT-A provides measures of visual scanning/visuomotor speed and TMT-B involves additional demands on executive functions. Derived scores TMT B-A and TMT B/A enhance measures of executive functioning. However, simple B-A subtraction may lead to false estimates of executive dysfunction in clinical ...
    • Does personality predict depression and use of an internet-based intervention for depression among adolescents? 

      Vangberg, Hans Christian Bones; Lillevoll, Kjersti; Waterloo, Knut; Eisemann, Martin (Journal article; Tidsskriftartikkel; Peer reviewed, 2012)
      Focus upon depression and prevention of its occurrence among adolescents is increasing. Novel ways of dealing with this serious problem have become available especially by means of internet-based prevention and treatment programs of depression and anxiety. The use of Internet-based intervention programs among adolescents has revealed some difficulties in implementation that need to be further ...
    • Evaluating the translation process of an Internet-based self-help intervention for prevention of depression: A cost-effectiveness analysis. 

      Lintvedt, Ove K; Griffiths, Kathleen; Eisemann, Martin; Waterloo, Knut (Journal article; Tidsskriftartikkel; Peer reviewed, 2013)
      Background: Depression is common and treatable with cognitive behavior therapy (CBT), for example. However, access to this therapy is limited. Internet-based interventions have been found to be effective in reducing symptoms of depression. The International Society for Research on Internet Interventions has highlighted the importance of translating effective Internet programs into multiple languages ...
    • Evaluation of error production in animal fluency and its relationship to frontal tracts in normal aging and mild Alzheimer's disease: A combined LDA and time-course analysis investigation 

      Itaguchi, Yoshihiro; Castro Chavira, Susana Angelica; Waterloo, Knut; Johnsen, Stein Harald; Rodríguez-Aranda, Claudia (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-01-12)
      Semantic verbal fluency (VF), assessed by animal category, is a task widely used for early detection of dementia. A feature not regularly assessed is the occurrence of errors such as perseverations and intrusions. So far, no investigation has analyzed the how and when of error occurrence during semantic VF in aging populations, together with their possible neural correlates. The present study aims ...
    • Glial activation and inflammation along the Alzheimer's disease continuum 

      Nordengen, Kaja; Kirsebom, Bjørn-Eivind; Henjum, Kristi; Selnes, Per; Gisladottir, Berglind; Wettergreen, Marianne; Torsetnes, Silje Bøen; Grøntvedt, Gøril Rolfseng; Waterloo, Knut; Aarsland, Dag; Nilsson, Lars; Fladby, Tormod (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-02-21)
      <p><i>Background - </i>Neuronal and glial cell interaction is essential for synaptic homeostasis and may be affected in Alzheimer’s disease (AD). We measured cerebrospinal fluid (CSF) neuronal and glia markers along the AD continuum, to reveal putative protective or harmful stage-dependent patterns of activation. <p><i>Methods - </i>We included healthy controls (<i>n</i> = 36) and Aβ-positive (Aβ+) ...
    • The impact of age-related hearing loss and lateralized auditory attention on spatiotemporal parameters of gait during dual-tasking among community dwelling older adults 

      Gorecka, Marta Maria; Vasylenko, Olena; Espenes, Johan Jacob; Waterloo, Knut; Rodriguez-Aranda, Claudia (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-07-27)
      This investigation assessed the impact of hearing loss and lateralized auditory attention on spatiotemporal parameters of gait during overground dual-tasking by the use of the dichotic listening task. Seventy-eight right-handed, healthy older adults between 60 and 88 years were assigned to a Young-Old (<70 years) or an Old-Old (>71 years) group. Cognitive assessment and pure tone audiometry were ...
    • In Brief Neuropsychological Assessment, Amnestic Mild Cognitive Impairment (MCI) Is associated with Cerebrospinal Fluid Biomarkers for Cognitive Decline in Contrast to the Prevailing NIA-AA MCI Criterion 

      Hessen, Erik; Kirsebom, Bjørn-Eivind; Eriksson, Cecilia Magdalena; Eliassen, Carl Fredrik Andestad; Nakling, Arne; Bråthen, Geir; Waterloo, Knut; Aarsland, Dag; Fladby, Tormod (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-01-22)
      <i>Background:</i> In the care of persons with cognitive problems, it is important to use a valid mild cognitive impairment (MCI) criterion that discriminates well between normal and pathological aging.<p> <p><i>Objective:</i> To find the brief neuropsychological screening criterion that best correlates with cerebrospinal fluid (CSF) biomarkers for cognitive decline and dementia in persons ...
    • Incidence of hospital referred head injuries in Norway : a population based survey from the Stavanger region 

      Romner, Bertil; Heskestad, Ben; Baardsen, Roald; Ingebrigtsen, Tor; Helseth, Eirik; Waterloo, Knut (Journal article; Tidsskriftartikkel; Peer reviewed, 2009-02-20)
      Background: In three previous Norwegian studies conducted between 1974 and 1993, the annual incidence rates of hospital admitted head injuries were 236, 200 and 169 per 100,000 population. The aim of this study was to describe the incidence of head injury in the Stavanger region and to compare it with previous Norwegian studies. <br> Methods: All head injured patients referred to Stavanger ...
    • Invisible emotional expressions influence social judgments and pupillary responses of both depressed and non-depressed individuals. 

      Laeng, Bruno; Sæther, Line; Holmlund, Terje; Wang, Catharina E.; Waterloo, Knut; Eisemann, Martin; Halvorsen, Marianne (Journal article; Tidsskriftartikkel; Peer reviewed, 2013)
      We used filtered low spatial frequency images of facial emotional expressions (angry, fearful, happy, sad, or neutral faces) that were blended with a high-frequency image of the same face but with a neutral facial expression, so as to obtain a “hybrid” face image that “masked” the subjective perception of its emotional expression. Participants were categorized in three groups of participants: healthy ...
    • IQ as a moderator of outcome in severity of children's mental health status after treatment in outpatient clinics 

      Mathiassen, Børge Idar; Brøndbo, Per Håkan; Waterloo, Knut; Martinussen, Monica; Eriksen, Mads; Hanssen-Bauer, Ketil; Kvernmo, Siv (Journal article; Tidsskriftartikkel; Peer reviewed, 2012)
      Psychotherapy is an effective treatment for mental health disorders, but even with the most efficacious treatment, many patients do not experience improvement. Moderator analysis can identify the conditions under which treatment is effective or whether there are factors that can attenuate the effects of treatment. In this study, linear mixed model analysis was used to examine whether the Full Scale ...
    • Longitudinal cerebrospinal fluid measurements show glial hypo- and hyperactivation in predementia Alzheimer’s disease 

      Nordengen, Kaja; Kirsebom, Bjørn-Eivind Seljelid; Richter, Grit; Pålhaugen, Lene; Gisladottir, Berglind; Siafarikas, Nikias Ioannis; Nakling, Arne Exner; Rongve, Arvid; Bråthen, Geir; Grøntvedt, Gøril Rolfseng; Gonzalez, Fernando; Waterloo, Knut; Sharma, Kulbhushan; Karikari, Thomas; Vromen, Eleonora M.; Tijms, Betty M.; Visser, Pieter J.; Selnes, Per; Kramberger, Milicia G.; Winblad, Bengt; Blennow, Kaj; Fladby, Tormod (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-12-13)
      Background - Brain innate immune activation is associated with Alzheimer’s disease (AD), but degrees of activation may vary between disease stages. Thus, brain innate immune activation must be assessed in longitudinal clinical studies that include biomarker negative healthy controls and cases with established AD pathology. Here, we employ longitudinally sampled cerebrospinal fluid (CSF) core AD, ...
    • Motivasjon for internettbasert kognitiv atferdsterapi ved hjelp av konsultasjonsstøtte: en kvalitativ studie 

      Wilhelmsen, Maja; Lillevoll, Kjersti; Risør, Mette Bech; Høifødt, Ragnhild Sørensen; Johansen, May-Lill; Waterloo, Knut; Eisemann, Martin; Kolstrup, Nils (Journal article; Tidsskriftartikkel, 2014)
    • Motivation to persist with internet-based cognitive behavioural treatment using blended care: a qualitative study. 

      Wilhelmsen, Maja; Lillevoll, Kjersti; Risør, Mette Bech; Høifødt, Ragnhild Sørensen; Johansen, May-Lill; Waterloo, Knut; Eisemann, Martin; Kolstrup, nils (Journal article; Tidsskriftartikkel; Peer reviewed, 2013)
      The prevalence of depression is high and results in huge costs for society. Internet-based cognitive behavioural treatment (ICBT) has been suggested for use in primary care and has been shown to be more effective when combined with human support. However, non-completion rates remain a challenge. Current recommendations state that steps to improve persistence with ICBT should be determined and the ...