• pypillometry: A Python package for pupillometric analyses 

      Mittner, Matthias (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-07-02)
      The size of the human pupil is controlled by pairs of constrictor and dilator muscles that allow its opening (dilation) and closing (constriction) in response to varying lighting conditions (Mathôt, 2018). Importantly, it has long been known that the pupil also reacts to psychological important stimuli (Hess & Polt, 1960) and has been a firmly established tool for studying “mental effort” in the ...
    • Response-Retrieval in Identity Negative Priming is Modulated by Temporal Discriminability 

      Mittner, Matthias; Behrendt, Jörg; Menge, Uwe; Titz, Cora; Hasselhorn, Marcus (Journal article; Tidsskriftartikkel; Peer reviewed, 2014)
      Reaction times to previously ignored information are often delayed, a phenomenon referred to as negative priming (NP). Rothermund et al. (2005) proposed that NP is caused by the retrieval of incidental stimulus-response associations when consecutive displays share visual features but require different responses. In two experiments we examined whether the features (color, shape) that reappear in ...
    • Selecting stimulation intensity in repetitive transcranial magnetic stimulation studies: A systematic review between 1991 and 2020 

      Turi, Zsolt; Lenz, Maximilian; Paulus, Walter; Mittner, Matthias; Vlachos, Andreas (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 ...
    • Self-reported mind wandering reflects executive control and selective attention 

      Hawkins, Guy E.; Mittner, Matthias; Forstmann, Birte U.; Heathcote, Andrew (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-06-07)
      Mind wandering is ubiquitous in everyday life and has a pervasive and profound impact on task-related performance. A range of psychological processes have been proposed to underlie these performance-related decrements, including failures of executive control, volatile information processing, and shortcomings in selective attention to critical task-relevant stimuli. Despite progress in the development ...
    • Short-lived Alpha Power Suppression Induced by Low-intensity Arrhythmic rTMS 

      Zmeykina, Elina; Mittner, Matthias; Paulus, Walter; Turi, Zsolt (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-05-02)
      This study was conducted to provide a better understanding of the role of electric field strength in the production of aftereffects in resting state scalp electroencephalography by repetitive transcranial magnetic stimulation (rTMS) in humans. We conducted two separate experiments in which we applied rTMS over the left parietal-occipital region. Prospective electric field simulation guided the choice ...
    • Skiing and thinking about it: Moment-to-moment and retrospective analysis of emotions in an extreme sport 

      Hetland, Audun; Vittersø, Joar; Bø Wie, Simen Oscar; Kjelstrup, Eirik Refsnes; Mittner, Matthias; Dahl, Tove Irene (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-06-20)
      Happiness is typically reported as an important reason for participating in challenging activities like extreme sport. While in the middle of the activity, however, participants do not seem particularly happy. So where does the happiness come from? The article proposes some answers from a study of facially expressed emotions measured moment-by-moment during a backcountry skiing event. Self-reported ...
    • Theta-gamma cross-frequency transcranial alternating current stimulation over the trough impairs cognitive control 

      Turi, Zsolt; Mittner, Matthias; Lehr, Albert; Bürger, H; Antal, Andrea; Paulus, Walter (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-07-15)
      Cognitive control is a mental process, which underlies adaptive goal-directed decisions. Previous studies have linked cognitive control to electrophysiological fluctuations in the theta band and theta-gamma cross-frequency coupling (CFC) arising from the cingulate and frontal cortices. Yet, to date the behavioral consequences of different forms of theta-gamma CFC remain elusive. Here, we studied the ...
    • The thrill of speedy descents: A pilot study on differences in facially expressed online emotions and retrospective measures of emotions during a downhill mountain-bike descent 

      Hetland, Audun; Kjelstrup, Eirik Refsnes; Mittner, Matthias; Vittersø, Joar (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-04-02)
      When extreme sport athletes explain the engagement behind their taxing and risky endeavors, they often refer to the happiness generated by the activities. However, during the activity, these athletes seem neither pleased nor happy. This article proposes some answers from a study of facially expressed emotions measured moment by moment during downhill mountain biking. Self-reported emotions were ...
    • Toward a model-based cognitive neuroscience of mind wandering 

      Hawkins, Guy; Mittner, Matthias; Boekel, W; Heathcote, A; Forstmann, Birte U (Journal article; Tidsskriftartikkel; Peer reviewed, 2015-12-03)
      People often ‘‘mind wander” during everyday tasks, temporarily losing track of time, place, or current task goals. In laboratory-based tasks, mind wandering is often associated with performance decrements in behavioral variables and changes in neural recordings. Such empirical associations provide descriptive accounts of mind wandering – howit affects ongoing task performance – but fail to ...
    • Transcranial Direct Current Stimulation above the Medial Prefrontal Cortex Facilitates Decision-Making following Periods of Low Outcome Controllability 

      Csifcsak, Gabor; Bjørkøy, Jorunn; Kuyateh, Sarjo; Reithe, Haakon; Mittner, Matthias (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-08-25)
      Recent studies suggest that choice behavior in reinforcement learning tasks is shaped by the level of outcome controllability. In particular, Pavlovian bias (PB) seems to be enhanced under low levels of control, manifesting in approach tendencies toward rewards and response inhibition when facing potential losses. The medial prefrontal cortex (mPFC) has been implicated both in evaluating outcome ...
    • Weak rTMS-induced electric fields produce neural entrainment in humans 

      Zmeykina, Elina; Mittner, Matthias; Paulus, Walter; Turi, Zsolt (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. ...
    • Weak rTMS-induced electric fields produce neural entrainment in humans 

      Zmeykina, E; Mittner, Matthias; Paulus, Walter; Turi, Zsolt (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. ...
    • Ө-γ Cross-Frequency Transcranial Alternating Current Stimulation over the Trough Impairs Cognitive Control 

      Turi, Zsolt; Mittner, Matthias; Lehr, Albert; Bürger, Hannah; Antal, Andrea; Paulus, Walter (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-08-06)
      Cognitive control is a mental process, which underlies adaptive goal-directed decisions. Previous studies have linked cognitive control to electrophysiological fluctuations in the θ band and θ-γ cross-frequency coupling (CFC) arising from the cingulate and frontal cortices. However, to date, the behavioral consequences of different forms of θ-γ CFC remain elusive. Here, we studied the behavioral ...