13 Hits in 1.6 sec

Network-based fMRI-neurofeedback training of sustained attention

Gustavo S.P. Pamplona, Jennifer Heldner, Robert Langner, Yury Koush, Lars Michels, Silvio Ionta, Frank Scharnowski, Carlos E.G. Salmon
2020 NeuroImage  
The brain regions supporting sustained attention (sustained attention network; SAN) and mind-wandering (default-mode network; DMN) have been extensively studied. Nevertheless, this knowledge has not yet been translated into advanced brain-based attention training protocols. Here, we used network-based real-time functional magnetic resonance imaging (fMRI) to provide healthy individuals with information about current activity levels in SAN and DMN. Specifically, 15 participants trained to
more » ... the difference between SAN and DMN hemodynamic activity and completed behavioral attention tests before and after neurofeedback training. Through training, participants improved controlling the differential SAN-DMN feedback signal, which was accomplished mainly through deactivating DMN. After training, participants were able to apply learned self-regulation of the differential feedback signal even when feedback was no longer available (i.e., during transfer runs). The neurofeedback group improved in sustained attention after training, although this improvement was temporally limited and rarely exceeded mere practice effects that were controlled by a test-retest behavioral control group. The learned self-regulation and the behavioral outcomes suggest that neurofeedback training of differential SAN and DMN activity has the potential to become a non-invasive and non-pharmacological tool to enhance attention and mitigate specific attention deficits.
doi:10.1016/j.neuroimage.2020.117194 pmid:32711065 fatcat:sa43ychiuzcdbfxr2tzhmwj5he

Long-term effects of network-based fMRI neurofeedback training for sustained attention [article]

Gustavo S. P. Pamplona, Jennifer Heldner, Robert Langner, Yury Koush, Lars Michels, Silvio Ionta, Carlos E. Garrido Salmon, Frank Scharnowski
2021 bioRxiv   pre-print
Neurofeedback allows for learning voluntary control over one's own brain activity, aiming to enhance cognition and clinical symptoms. A recent study improved sustained attention temporarily by training healthy participants to up-regulate the differential activity of the sustained attention network (SAN) minus the default mode network (DMN). However, long-term learning effects of functional magnetic resonance imaging (fMRI) neurofeedback training remain under-explored. Here, we evaluate the
more » ... ts of network-based fMRI neurofeedback training for sustained attention by assessing behavioral and brain measures before, one day after, and two months after training. The behavioral measures include task as well as questionnaire scores, and the brain measures include activity and connectivity during self-regulation runs without feedback (i.e., transfer runs) and during resting-state runs. Neurally, we found that participants maintained their ability to control the differential activity during follow-up sessions. In resting-state runs and only in the follow-up, we observed higher connectivity within the DMN and higher degree of functional connectivity (FC) in regions that were successfully trained. We also show evidence for effects of training in the salience network mediating the switch between anticorrelated networks (the DMN and part of the SAN). Also, the training-induced increase in FC between the DMN and occipital gyrus was maintained during follow-up transfer runs. In contrast, the training-induced increased FC between DMN and occipital gyrus was not observed during follow-up resting-state runs. Behaviorally, we found that enhanced sustained attention right after training returned to baseline level during follow-up. The discrepancy between lasting regulation-related brain changes but transient behavioral and resting-state effects raises the question of how neural changes induced by neurofeedback training translate to potential behavioral improvements. Since neurofeedback directly targets brain measures to indirectly improve behavior long-term, a better understanding of the brain-behavior associations during and after neurofeedback training is needed to develop its full potential as a promising scientific and clinical tool.
doi:10.1101/2021.10.27.465722 fatcat:psgtmmggbbaexgzpjirihigc6e

Acknowledgement to Reviewers of JCM in 2018

2019 Journal of Clinical Medicine  
Graves, Jennifer S. Greupink, Rick Grimaldi, Domenico Gris, Jean C.  ...  Hecker, Andreas Hedberg, Pär Hedhammar, My Heldner, Mirjam Helliwell, Philip S. Heo, Dae Seog Hes, Frederik J.  ... 
doi:10.3390/jcm8010058 fatcat:bo2occwtunf7xbgityd7uximcq

Acknowledgment to Reviewers of Cells in 2020

Cells Editorial Office Cells Editorial Office
2021 Cells  
Harata, Masahiko Heitmar, Rebekka Hargreaves, Iain Hejnova, Lucie Hariharan, Seethalakshmi Hekimi, Siegfried Hariri, Hanaa Heldner, Mirjam Härkönen, Pirkko Helfrich, Iris Harrell, Carl Randall  ...  Dupont, Geneviève D'Orléans-Juste, Pédro Dupont, Joëlle Dorner, Andrea Dupraz, Sebastian Dörrie, Jan Dupre, Aude D'Orsi, Beatrice Duquette, Pierre Esser, Charlotte Fantini, Damiano Esser, Jennifer  ... 
doi:10.3390/cells10020244 pmid:33513960 fatcat:q4vacv2ccjembakv5qj2au2s5e

Acoustic and laryngographic measures of the laryngeal reflexes of linguistic prominence and vocal effort in German

Christine Mooshammer
2010 Journal of the Acoustical Society of America  
Mark Tiede, Christian Geng, Christine Shadle and Arthur Abramson for their valuable suggestions, Jonathan Harrington for help with the corpus design and with EMU/R as well as for very helpful comments, Jennifer  ...  Furthermore, in a study by Heldner (2003) focal accent was also produced with a flatter spectral slope.  ...  Traunmüller & Eriksson 2000 , Heldner 2003 and the difference between the amplitude of the first harmonic and the third formant H1-A3, also termed rate of closure or RC (see also Figure 2 , discussed  ... 
doi:10.1121/1.3277160 pmid:20136226 pmcid:PMC2830266 fatcat:knr2o352qzd3jc4qhgso7wdsmq

Acknowledgment to Reviewers of IJERPH in 2020

IJERPH Editorial Office IJERPH Editorial Office
2021 International Journal of Environmental Research and Public Health  
Held, Mary Lehman Herbeć, Aleksandra Held, Philipp Herber, Oliver Helden, Maarten Herbert, Anthony Heldner, Mirjam Herbert, Jarosław Hele, Karl Herbuela, Von Ralph Dane M.  ...  Fitchett, Jennifer Figueroa, Roger Fitzgerald, Edward Figueroa-Rodríguez, Katia A.  ... 
doi:10.3390/ijerph18031259 fatcat:kqqzdz46tzf7nhqmf2ejn3n33y

Prosody in context: a review

Jennifer Cole
2014 Language, Cognition and Neuroscience  
., Mandarin Chinese: Cao, 2004; Dutch: Cambier-Langeveld, 1997; Cho & McQueen, 2005; Hungarian: Hockey & Fagyal, 1999; Russian: Volskaya & Stepanova, 2004; Swedish: Horne, Strangert, & Heldner, 1995)  ...  Hazan & Baker (2010) observe higher median F0 in English read speech utterances compared to interactive speech produced in clear or casual styles, while Swerts, Strangert, & Heldner (1996) report steeper  ... 
doi:10.1080/23273798.2014.963130 fatcat:dreoglvbszcjpjpgawlvy4kfqq

Emerging Detection Techniques for Large Vessel Occlusion Stroke: A Scoping Review

Jennifer K. Nicholls, Jonathan Ince, Jatinder S. Minhas, Emma M. L. Chung
2022 Frontiers in Neurology  
As previously described by Heldner et al. (76) , the balance of sensitivity and specificity requirements may change depending on the geographical location of the patient.  ... 
doi:10.3389/fneur.2021.780324 pmid:35095726 pmcid:PMC8796731 fatcat:q5tq2lryabhv5f3hg6dbzigcwe

Signal-based and expectation-based factors in the perception of prosodic prominence

Jennifer Cole, Yoonsook Mo, Mark Hasegawa-Johnson
2010 Laboratory Phonology  
intensity measures were taken in the frequency bands 0 -.5, .5-2, 2-4 kHz to assess spectral emphasis, shown by Sluijter and van Heuven (1996) to be a reliable correlate of word stress in Dutch, and by Heldner  ... 
doi:10.1515/labphon.2010.022 fatcat:dr4uby6fgvcunik2ghf2wvp3b4

Phonetic convergence across multiple measures and model talkers

Jennifer S. Pardo, Adelya Urmanche, Sherilyn Wilman, Jaclyn Wiener
2016 Attention, Perception & Psychophysics  
., 2016; Dias & Rosenblum, 2011; Fusaroli & Tylén, 2016; Heldner, Edlund, & Hirschberg, 2010; Kim, Horton, & Bradlow, 2011; Levitan, Benus, Gravano, & Hirschberg, 2015; Levitan & Hirschberg, 2011; Louwerse  ... 
doi:10.3758/s13414-016-1226-0 pmid:27826946 fatcat:g6ikcy6jqfbudcdxl2l7sqw3o4

Structural and Referent-Based Effects on Prosodic Expression in Russian

Tatiana Luchkina, Jennifer S. Cole
2016 Phonetica: International Journal of Phonetic Science  
Read speech has been characterized as syntactically more complex than spontaneous speech and may be articulated more slowly and with greater pitch range and pitch declination (Swerts, Strangert and Heldner  ... 
doi:10.1159/000449104 pmid:28208137 fatcat:dni6z2lvvfatph6fby34fcd2nu

The Chaotic University

E. M. Rogers
1950 Science  
Street was the temporary residence of a number of local and nationally renowned artists in the mid-20 th century, such as documentary photographers Woods Whitesell and Dan Leyrer, Swedish painter Knute Heldner  ...  This social accessibility is recognized and valued by café employees and regulars: -If you want to do anything [at the café] you can go ask Baty [and] she will be supportive of that‖ (Jennifer Moran  ... 
doi:10.1126/science.111.2886.399 pmid:17773170 fatcat:iphm26ui3zda5blij2combovt4

4 Anti-genderism. Feminism in

Eva Poland, Karlberg
At the National Museum of Science and Technology, the conference participants took part in the opening of a photographic exhibition on the Ågesta nuclear power plant, curated by Magdalena Tafvelin-Heldner  ...  The absence opened up space for presence as they were PHOTO: JENNIFER BOYER/FLICKR replaced by street fighters from Budapest who were only representing the social and economic deprivation during communism  ...