Verónica Mäki-Marttunen
@vmakimarttunen.bsky.social
I'm a neuroscientist researching how the smallest regions in the human brain can have so much impact on brain activity and disease. I work at Oslo University Hospital using large MRI datasets and electrophysiology. I like playing violin, skiing and running
A large high-field fMRI dataset allowed to uncover that not only viusal but also fronto-parietal regions process the memorability of images. Check it out! www.biorxiv.org/content/10.1...
Neural correlates of image memorability: Combining large-scale 7T fMRI with machine learning-based predictions
We combine ultra-high-resolution fMRI with machine learning predictions to investigate the neural correlates of image memorability. Using ViTMem, a visual transformer-based tool, we estimated memorabi...
www.biorxiv.org
April 10, 2025 at 12:55 PM
A large high-field fMRI dataset allowed to uncover that not only viusal but also fronto-parietal regions process the memorability of images. Check it out! www.biorxiv.org/content/10.1...
Really nice work! Do you think it would work as well with longer TRs?
February 27, 2025 at 12:13 PM
Really nice work! Do you think it would work as well with longer TRs?
Bonus: our paper also adds to the intriguing dissociations within the alpha band. See this other paper here if you are interested: pubmed.ncbi.nlm.nih.gov/36171059/
Visual working memory recruits two functionally distinct alpha rhythms in posterior cortex - PubMed
Oscillatory activity in the human brain is dominated by posterior alpha oscillations (8-14 Hz), which have been shown to be functionally relevant in a wide variety of cognitive tasks. Although posteri...
pubmed.ncbi.nlm.nih.gov
February 26, 2025 at 12:09 PM
Bonus: our paper also adds to the intriguing dissociations within the alpha band. See this other paper here if you are interested: pubmed.ncbi.nlm.nih.gov/36171059/
Understanding these mechanisms may help us grasp how the brain selectively attends and switches between internal and external content. Check the paper here for the whole story! www.eneuro.org/content/12/1... 8/8
www.eneuro.org
February 26, 2025 at 12:09 PM
Understanding these mechanisms may help us grasp how the brain selectively attends and switches between internal and external content. Check the paper here for the whole story! www.eneuro.org/content/12/1... 8/8
Our results reveal that endogenous sources distinctly contribute to EEG phase entrainment fluctuations, providing new insights into how the brain attends and processes rhythmic stimuli. 7/8
February 26, 2025 at 12:09 PM
Our results reveal that endogenous sources distinctly contribute to EEG phase entrainment fluctuations, providing new insights into how the brain attends and processes rhythmic stimuli. 7/8
Interestingly, a temporal anticorrelation between entrainment and alpha power emerged around pupil minima. Although our temporal resolution did not allow us to estimate the frequency, it is likely in the order of several seconds… 6/8
February 26, 2025 at 12:09 PM
Interestingly, a temporal anticorrelation between entrainment and alpha power emerged around pupil minima. Although our temporal resolution did not allow us to estimate the frequency, it is likely in the order of several seconds… 6/8
Larger pupil size = increased entrainment to task-relevant stimuli. In contrast, larger alpha power = decreased entrainment to both task-relevant and irrelevant stimuli. 5/8
February 26, 2025 at 12:09 PM
Larger pupil size = increased entrainment to task-relevant stimuli. In contrast, larger alpha power = decreased entrainment to both task-relevant and irrelevant stimuli. 5/8
Our awesome participants attended to rhythmic sequences of visual or auditory stimuli while ignoring the other modality. As expected, entrainment was stronger for the task-relevant stimuli. 4/8
February 26, 2025 at 12:09 PM
Our awesome participants attended to rhythmic sequences of visual or auditory stimuli while ignoring the other modality. As expected, entrainment was stronger for the task-relevant stimuli. 4/8
Using EEG, we repeated the experiment in humans. We examined whether pupil size and posterior alpha band power, reflecting alertness and cortical excitability, affected EEG phase entrainment to rhythmic stimuli. 3/8
February 26, 2025 at 12:09 PM
Using EEG, we repeated the experiment in humans. We examined whether pupil size and posterior alpha band power, reflecting alertness and cortical excitability, affected EEG phase entrainment to rhythmic stimuli. 3/8
In a very nice paper using non-human primates, Dr. Lakatos et al. (pubmed.ncbi.nlm.nih.gov/27618311/) found that the brain syncs with environmental rhythms by aligning internal oscillations, but not all the time, leading the monkeys to have attention lapses. But why? 2/8
Global dynamics of selective attention and its lapses in primary auditory cortex - PubMed
Previous research demonstrated that while selectively attending to relevant aspects of the external world, the brain extracts pertinent information by aligning its neuronal oscillations to key time po...
pubmed.ncbi.nlm.nih.gov
February 26, 2025 at 12:09 PM
In a very nice paper using non-human primates, Dr. Lakatos et al. (pubmed.ncbi.nlm.nih.gov/27618311/) found that the brain syncs with environmental rhythms by aligning internal oscillations, but not all the time, leading the monkeys to have attention lapses. But why? 2/8
The pupil is full of surprises -and that's why I love it! Answering your question -perhaps some kind of neurofeedback?
January 15, 2025 at 3:51 PM
The pupil is full of surprises -and that's why I love it! Answering your question -perhaps some kind of neurofeedback?