Blar i NTNU Open på forfatter "Flaten, Magne Arve"
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A qualitative systematic review of effects of provider characteristics and non-verbal behavior on pain, and placebo and nocebo effects
Hojjat, Danialy; Flaten, Magne Arve (Journal article; Peer reviewed, 2019)Background: Previous research has indicated that the sex, status, and nonverbal behaviors of experimenters or clinicians can contribute to reported pain, and placebo and nocebo effects in patients or research participants. ... -
The Effect of Singular Nonverbal Behaviours of Experimenters on Pain Reports
Daniali, Hojjat; Ruben, Mollie A.; Aslaksen, Per M; Fiskum, Charlotte; Kaptchuk, Ted J.; Flaten, Magne Arve (Journal article; Peer reviewed, 2024)Introduction: Studies suggest facial expressions of caregivers may be important in placebo effects; however, this has not been systematically tested. This experiment investigated the effects of caregivers’ singular positive ... -
European Headache Federation recommendations for placebo and nocebo terminology
Mitsikostas, Dimos D.; Blease, Charlotte; Carlino, Elisa; Colloca, Luana; Geers, Andrew L.; Howick, Jeremy; Evers, Andrea W. M.; Flaten, Magne Arve; Kelley, John M.; Kirsch, Irving; Klinger, Regine; Maassen van den Brink, Antoinette; Moerman, Daniel E.; Sfikakis, Petros P.; Vase, Lene; Wager, Tor D.; Benedetti, Fabrizio (Peer reviewed; Journal article, 2020)Background and aim Despite recent publications, practitioners remain unfamiliar with the current terminology related to the placebo and nocebo phenomena observed in clinical trials and practice, nor with the factors that ... -
Experiencing COVID-19 symptoms without the disease: The role of nocebo in reporting of symptoms
Daniali, Hojjat; Flaten, Magne Arve (Peer reviewed; Journal article, 2021)Background: A nocebo effect occurs when inactive factors lead to worsening of symptoms or reduce treatment outcomes. Believing that one is or has been infected with COVID-19 may act as a nocebo. However, not much is known ... -
A Global Meta-Analysis of Depression, Anxiety, and Stress Before and During COVID-19
Daniali, Hojjat; Martinussen, Monica; Flaten, Magne Arve (Peer reviewed; Journal article, 2023)Objective: This meta-analysis compared negative emotions (NEs) as depression, anxiety, and stress, from before the pandemic to during the pandemic. Method: A total of 59 studies (19 before, 37 during-pandemic, and 3 that ... -
A global meta-analysis of depression, anxiety, and stress before and during COVID-19
Daniali, Hojjat; Martinussen, Monica; Flaten, Magne Arve (Peer reviewed; Journal article, 2023)Objective: This meta-analysis compared negative emotions (NEs) as depression, anxiety, and stress, from before the pandemic to during the pandemic. Method: A total of 59 studies (19 before, 37 during-pandemic, and 3 that ... -
Inconstant Hearts: Internalizing psychopathology through the lens of neurovisceral integration and complexity
Fiskum, Charlotte (Doctoral theses at NTNU;2019:116, Doctoral thesis, 2019)Sammendrag: Kan analyser av hjerterytme si noe om psykiske utfordringer hos barn og unge? Bruk av nye forståelsesmodeller for psykiske vansker kan gi økt innsikt og nye verktøy for behandling. I den nevroviscerale ... -
Internalizing problems and attentional control: Effects on cardiac autonomic responses after the induction of negative affect
Andersen, Tonje Grønning; Fiskum, Charlotte; Aslaksen, Per M; Flaten, Magne Arve; Jacobsen, Karl Henry (Journal article; Peer reviewed, 2019)Abstract. Individuals with internalizing problems differ in levels of attentional control (AC), and this heterogeneity could be associated with differences in autonomic arousal. The present study investigated whether AC ... -
Placebo Analgesia, Nocebo Hyperalgesia, and the Cardiovascular System: A Qualitative Systematic Review
Daniali, Hojjat; Flaten, Magne Arve (Peer reviewed; Journal article, 2020)Background: Placebo/nocebo effects involve the autonomic nervous system, including cardiac activity, but studies have reported inconsistent findings on how cardiac activity is modulated following a placebo/nocebo effect. ... -
Placebo Effects on Stress, but Not on Pain Reports. A Multi-Experiment Study
Vambheim, Sara Magelssen; Daniali, Hojjat; Flaten, Magne Arve (Peer reviewed; Journal article, 2021)Background: Contextual factors, such as participant/experimenter sex may moderate the placebo effects. We tested whether the participant and experimenter sex modulated placebo effects on experimentally induced pain and ... -
Reactive Heart Rate Variability and Cardiac Entropy in Children with Internalizing Disorder and Healthy Controls
Fiskum, Charlotte; Andersen, Tonje Grønning; Flaten, Magne Arve; Aslaksen, Per M; Bornas, Xavier; Jacobsen, Karl Henry (Journal article; Peer reviewed, 2019)Atypical vagal reactivity has been linked to internalizing psychopathology and less adaptive emotion regulation, but reactive cardiac entropy is largely unexplored. Therefore, this study investigated reactive vagally-mediated ... -
Sense of presence in immersive virtual environments: Measures, associations, and possible applied uses
Grassini, Simone (Doctoral theses at NTNU;2021:145, Doctoral thesis, 2021)The present thesis had the general goal to investigate the phenomenon of sense of presence in the context of modern immersive visual technologies. The empirical work that has been carried out was focused on the latest ... -
Specifying Contextual Factors; Caregivers' Role in Pain Report and Placebo Effects - The role of caregivers' characteristics and nonverbal behaviours in pain and placebo effects
Daniali, Hojjat (Doctoral theses at NTNU;2024:137, Doctoral thesis, 2024)In this PhD project, we investigated the role of caregivers’ characteristics, by means of caregivers’ sex/gender and social status, and their nonverbal behaviours on pain reports and placebo effects (i.e., better treatment ... -
Systematic manipulation of experimenters' non-verbal behaviors for the investigation of pain reports and placebo effects
Daniali, Hojjat; Ruben, Mollie A.; Flaten, Magne Arve (Peer reviewed; Journal article, 2023)Objective: Non-verbal behaviors (NBs) of caregivers affect pain reports and placebo effects. However, little experimental research has systematically examined the caregivers' NBs. This study protocol and preparatory study ... -
The Influence of placebo analgesia manipulations on pain report, the nociceptive flexion reflex, and autonomic responses to pain
Rhudy, Jamie L.; Güereca, Yvette M.; Kuhn, Bethany L.; Palit, Shreela; Flaten, Magne Arve (Journal article; Peer reviewed, 2018)Expectations for pain relief and experience/conditioning are psychological factors that contribute to placebo analgesia, yet few studies have studied the physiological mechanisms underlying their effects. This study ... -
What Psychological Factors Make Individuals Believe They Are Infected by Coronavirus 2019?
Daniali, Hojjat; Flaten, Magne Arve (Peer reviewed; Journal article, 2021)Background: We previously showed, by means of an online-based survey, that the belief of being infected by coronavirus disease 2019 (COVID-19) acted as a nocebo and predicted higher perception of symptoms similar to COVID-19 ...