Matthias Ekman

@MatthiasEkman

Donders Institute, prediction, visual attention, fMRI

Nijmegen, The Netherlands
Vrijeme pridruživanja: ožujak 2010.

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  1. proslijedio/la je Tweet
    29. sij

    Check out our new modelling paper, now on Biorxiv! We simulate how one can decode cortical alpha oscillations to identify memories by their unique temporal signatures, via some very cool binding and timing mechanisms.

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  2. proslijedio/la je Tweet
    27. sij

    Excited to share the last project of my PhD "A Bayesian and efficient observer model explains concurrent attractive and repulsive history biases in visual perception" with

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  3. proslijedio/la je Tweet
    16. sij

    The 1st paper of my PhD is out today in ! We show that word contexts can enhance letter representations in early visual cortex With , peter hagoort& Paper: TL;DR? Let me unpack it in a few (or so) tweets👇

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  4. proslijedio/la je Tweet

    Comparing the prioritisation of items and feature-dimensions in visual working memory

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  5. proslijedio/la je Tweet
    28. stu 2019.

    Our preregistered study on the role of feature-based attention in visual serial dependence is now published () with from

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  6. proslijedio/la je Tweet
    22. stu 2019.

    How can we learn a sequence of tasks without forgetting, without class labels and with unknown or ambiguous task boundaries? Continual Unsupervised Representation Learning: Paper: Code:

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  7. proslijedio/la je Tweet
    12. stu 2019.

    "In HC, smaller ... vascular dilations in response to ... neuronal activity produce smaller positive BOLD signals. BOLD signals are therefore a less sensitive measure of neuronal activity in HC than in neocortex". Really important study for understanding hippocampal fMRI effects.

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  8. proslijedio/la je Tweet
    20. stu 2019.

    Here is a preprint just posted on OSF -- pattern separation and pattern completion as behaviorally separable processes. The long version of the poster Pattern separation and pattern completion: Behaviorally separable processes? via

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  9. proslijedio/la je Tweet
    21. sij 2019.

    CA3 is the predominant driver of CA1 place cells: acute silencing of CA3 disrupts CA1 sharp wave ripples and place fields New (and surprising) findings from Davoudi & Foster

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  10. proslijedio/la je Tweet
    11. stu 2019.

    Latest paper with now online in JNeurosci! Hippocampal and prefrontal theta-band mechanisms underpin implicit spatial context learning. Paper: Code: Data:

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  11. proslijedio/la je Tweet
    14. lis 2019.

    We’re releasing new large datasets to accelerate including our first – and the world’s largest – dataset of brain activity gathered using , a high-resolution probe that can record activity from hundreds of neurons simultaneously.

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  12. proslijedio/la je Tweet
    9. lis 2019.
    Odgovor korisniku/ci
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  13. proslijedio/la je Tweet
    9. lis 2019.

    Very helpful list of the most common statistical mistakes in manuscripts and how to avoid them. By Makin & Orban de Xivry out in .

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  14. proslijedio/la je Tweet
    30. ruj 2019.

    Hi! So excited to share our newest w : Predictive Representations in Hippocampal & Prefrontal Hierarchies. fMRI evidence that predictive representations are organized at multiple scales in posterior-anterior hierarchies in PFC & hippocampus. 1/N

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  15. proslijedio/la je Tweet
    30. ruj 2019.

    Excited to share our new : Behavior-dependent directional tuning in the human visual-navigation network: . Environmental coding in V1-RSC-PHC-EC-HPC pathway depends on behavior & successful cognitive mapping. /w , &

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  16. proslijedio/la je Tweet
    15. ruj 2019.

    New paper in Annual Review of Psychology, prior to publication. We examine functional specialization in the attention network, linking results from multiple methodologies. Functional contributions from each node change on a moment-to-moment timescale.

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  17. proslijedio/la je Tweet
    13. ruj 2019.

    The hippocampal role in predictive actions changes over time (as indicated by a sharpening of task-based background connectivity to visual cortex). New paper by Hindy, Avery & Turk-Browne .

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  18. proslijedio/la je Tweet
    10. ruj 2019.

    Nuttida's new paper is out...preserved expectation and attention effects with hippocampus damage.

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  19. proslijedio/la je Tweet
    10. ruj 2019.

    New preprint with Sam Lawrence and on the temporal tuning of repetition suppression (RS) across the visual cortex . We find that RS decays similarly across the visual hierarchy with surprisingly sustained RS in V1.

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  20. proslijedio/la je Tweet

    Are nonlinear classifiers useless when analyzing fMRI data? Empirically we see some evidence: My take: ML in the high input noise domain will always be approximately linear, even in the limit of infinite data. w

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