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Weak rTMS-induced electric fields produce neural entrainment in humans
(Journal article; Tidsskriftartikkel; Peer reviewed, 2020-07-20)
Repetitive transcranial magnetic stimulation (rTMS) is a potent tool for modulating endogenous oscillations in humans. The current standard method for rTMS defines the stimulation intensity based on the evoked liminal response in the visual or motor system (e.g., resting motor threshold). The key limitation of the current approach is that the magnitude of the resulting electric field remains elusive. ...
"They were the ones that saw me and listened.” From child sexual abuse to disclosure: Adults’ recalls of the process towards final disclosure
(Journal article; Tidsskriftartikkel; Peer reviewed, 2019-01-11)
<i>Background</i> - When child sexual abuse (CSA) is not disclosed, children run the risk of being subjected to longer or repeated abuse, not receiving necessary treatment, and being re-victimized. <p>
<p><i>Objective</i> - This study examines what adults exposed to child sexual abuse in hindsight evaluate as important for disclosure. The aim was to explore exposed own experiences of steps towards ...
Role of Oestrogen α Receptors in Sociosexual Behaviour in Female Rats Housed in a Seminatural Environment
(Journal article; Tidsskriftartikkel; Peer reviewed, 2015-08-28)
The present study investigated the role of oestrogen receptor (ER)α in the ventromedial nucleus of the hypothalamus (VMN), the preoptic area (POA), the medial amygdala (MePD) and the bed nucleus of stria terminalis (BNST) in sociosexual behaviour in female rats. This was conducted in two sets of experiments, with the VMN and POA investigated in the first set, and the MePD and BNST in the second set. ...
Sleep in the land of the midnight sun and polar night: The Tromsø study
(Journal article; Tidsskriftartikkel; Peer reviewed, 2020-11-29)
While some diseases and human behaviors fluctuate consistently with season, the extent of seasonal variations in sleep, especially at high latitudes, is less consistent. We used data from a geographic region (69º North) with extremely large seasonal differences in daylight that had the participants blinded for the current study’s hypotheses. Data were derived from the Tromsø Study (2015–2016), an ...
Childhood Sensorineural Hearing Loss and Divorce in a Large Norwegian Cohort: Results from the HUNT Study
(Journal article; Tidsskriftartikkel; Peer reviewed, 2021-02-10)
The aim of this study is to investigate the association between childhood sensorineural hearing loss (CSNHL) and divorce in a large, Norwegian cohort. Data from the School Hearing Investigation in Nord-Trøndelag (SHINT), Norway, are combined with registry data on marital status from Statistics Norway and matched controls from the Nord-Trøndelag Health Study (HUNT). The sample includes a total of ...
A multi-country test of brief reappraisal interventions on emotions during the COVID-19 pandemic
(Journal article; Tidsskriftartikkel; Peer reviewed, 2021-08-02)
The COVID-19 pandemic has increased negative emotions and decreased positive emotions globally. Left unchecked, these emotional changes might have a wide array of adverse impacts. To reduce negative emotions and increase positive emotions, we tested the effectiveness of reappraisal, an emotion-regulation strategy that modifies how one thinks about a situation. Participants from 87 countries and ...
Protein Appetite Drives Macronutrient-Related Differences in Ventral Tegmental Area Neural Activity
(Journal article; Tidsskriftartikkel; Peer reviewed, 2021-06-09)
Control of protein intake is essential for numerous biological processes as several amino acids cannot be synthesized de novo, however, its neurobiological substrates are still poorly understood. In the present study, we combined in vivo fiber photometry with nutrient-conditioned flavor in a rat model of protein appetite to record neuronal activity in the VTA, a central brain region for the control ...
Selecting stimulation intensity in repetitive transcranial magnetic stimulation studies: A systematic review between 1991 and 2020
(Journal article; Tidsskriftartikkel; Peer reviewed, 2021-03-22)
Repetitive transcranial magnetic stimulation (rTMS) is an increasingly used, non-invasive brain stimulation technique in neuroscience research and clinical practice with a broad spectrum of suggested applications. Among other parameters, the choice of stimulus intensity and intracranial electric field strength substantially impacts rTMS outcome. This review provides a systematic overview of the ...
The Impact of COVID-19-Induced Changes at Schools on Elementary Students' School Engagement
(Journal article; Tidsskriftartikkel; Peer reviewed, 2021-09-09)
In spring 2020, the COVID-19 pandemic led to the shutdown of schools in many countries. Emerging research documents the negative effects of the pandemic and particularly of the shutdown of schools on children's well-being. The present research extends this research by investigating how structural changes made in schools upon reopening to align with COVID-19 restrictions were related to children's ...
Effects of gonadectomy and dihydrotestosterone on neuronal plasticity in motivation and reward related brain regions in the male rat
(Journal article; Tidsskriftartikkel; Peer reviewed, 2020-11-06)
Gonadal hormones affect neuronal morphology to ultimately regulate behaviour. In female rats, oestradiol mediates spine plasticity in hypothalamic and limbic brain structures, contributing to long‐lasting effects on motivated behaviour. Parallel effects of androgens in male rats have not been extensively studied. Here, we investigated the effect of both castration and androgen replacement on spine ...