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Maarten C. Ottenhoff

@mottenhoff.bsky.social

78 followers 193 following 27 posts

Postdoctoral researcher | Motor decoding | Intracranial Brain-computer interfaces | @BrainGate

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Maarten C. Ottenhoff @mottenhoff.bsky.social · 28/04/2026

lol who did this? predatory journal emails just keep getting better...

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Maarten C. Ottenhoff @mottenhoff.bsky.social · 10/02/2025

About the decoding of the directional kinematics. It turns out that if we change the reference frame from the sensor to a goal-directed reference frame, the decoder is able the position w.r.t the target above chance!

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Maarten C. Ottenhoff @mottenhoff.bsky.social · 10/02/2025

If we look at the electrode contact locations that were significantly correlated with hand movement speed, we observe that these contacts are located throughout the brain, including cortical and subcortical structures.

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Maarten C. Ottenhoff @mottenhoff.bsky.social · 10/02/2025

We found that non-directional hand movement speed can be decoded using low, mid and high frequency information. Particularly, the low frequency activity reached substantial decoding performance (up to 0.76 + 0.03). Directional hand kinematics seemed not decodable.

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Maarten C. Ottenhoff @mottenhoff.bsky.social · 10/02/2025

To investigate, we recorded 3D hand movement trajectory while our participants played a custom game from which we retrieved position, velocity, speed and acceleration. At the same time we recorded neural activity from cortical and sub-cortical brain areas.

3D figure showing the movement trajectory as blue line and captured targets as gold circles

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