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Christian Herff
Assistant Professor @ Maastricht University interested in machine learning for brain-computer interfaces and neuroscience.
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Christian Herff proslijedio/la je tweet
Sergey Stavisky 20 h
For those registering for the 2020 meeting in June, consider signing up for our workshop on speech brain-computer interfaces:
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Christian Herff proslijedio/la je tweet
Gernot Mueller-Putz 17. pro
Our BCI Society Meeting Workshop Summary is published! Check out here:
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Christian Herff 11. pro
Jeremy Saal presenting our work on decoding navigational parameters from hippocampal sEEG at .
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Christian Herff proslijedio/la je tweet
Sergey Stavisky 10. pro
Happy to report that this now published: A big thank you to our three superb reviewers for their help in improving the manuscript!
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Christian Herff proslijedio/la je tweet
Frontiers Neurosci 4. pro
New Research: Generating Natural, Intelligible Speech From Brain Activity in Motor, Premotor, and Inferior Frontal Cortices: Neural interfaces that directly produce intelligible speech from brain activity would allow people with severe…
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Christian Herff 22. stu
Odgovor korisniku/ci @PattiAdank
Thanks for mentioning our article. The full manuscript is now available.
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Christian Herff 22. stu
Odgovor korisniku/ci @HerffC
What I like best about this paper is that this super simple pattern matching approach is able to produce high-quality audio, while being fast enough for real-time processing at the same time. It was great fun working with everyone involved in this project. Thanks!
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Christian Herff 22. stu
Odgovor korisniku/ci @HerffC
We also asked volunteers to perform a listening test and 66.7% of the reconstructed words could be identified correctly in a forced-choice test with 4 options.
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Christian Herff 22. stu
Odgovor korisniku/ci @HerffC
The approach used also allows us to run the analysis with the three regions individually. Each of them performed above chance level, but M1 clearly provided most information for the decoding processes.
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Christian Herff 22. stu
Odgovor korisniku/ci @HerffC
This simple and fast approach reconstructs very high quality audio using the patient's own voice. You can listen to a few examples in the supplementary material.
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Christian Herff 22. stu
Odgovor korisniku/ci @HerffC
Our approach is based on Unit Selection, where the best fitting unit of speech is just concatenated to the output. We determine the best fitting unit of speech by comparing the cosine similarity of high-gamma activity. This video illustrates the approach:
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Christian Herff 22. stu
Odgovor korisniku/ci @HerffC
In this study, we used a very simple method from the speech synthesis community to reconstruct natural, intelligible speech from intra-op ECoG in IFG, pre-motor and motor cortex.
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Christian Herff 22. stu
After much too long, our article (with and ) is finally out: "Generating Natural, Intelligible Speech From Brain Activity in Motor, Premotor, and Inferior Frontal Cortices"
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Christian Herff 14. stu
Odgovor korisniku/ci @HerffC
To stimulate a realistic VR scenario, our task requires quite a bit of movement, despite of which workload classification worked similar to previous studies in EEG.
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Christian Herff 14. stu
Odgovor korisniku/ci @HerffC
In this article, we present a VR version of the n-back task (available at ) and use it to investigate workload in an immersive environment with EEG.
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Christian Herff 14. stu
New article out with : "Estimating Cognitive Workload in an Interactive Virtual Reality Environment Using EEG"
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Christian Herff 24. lis
Had a great time speaking with about Brain-Computer Interfaces:
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Christian Herff 17. lis
Odgovor korisniku/ci @UniBremenCSL @ASPENLABVCU
With Miguel Angrick from , and Jon Brumberg, we show our vision "Towards Restoration of Articulatory Movements: Functional Electrical Stimulation of Orofacial Muscles"
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Christian Herff 17. lis
Odgovor korisniku/ci @DigNeurosurgeon @jeroenhabets1
With Margot Heijmans, and we investigated "Evaluation of Parkinson’s Disease at Home: Predicting Tremor from Wearable Sensors"
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Christian Herff 17. lis
Odgovor korisniku/ci @ASPENLABVCU
Together with we investigated "EEG Movement Artifact Suppression in Interactive Virtual Reality"
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