how to detect strength of hand movement in the BCI scenario

Working with OpenViBE signal processing scenarios and doing scenario/BCI design
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kiyarash
Posts: 27
Joined: Tue Apr 11, 2017 10:44 am

how to detect strength of hand movement in the BCI scenario

Post by kiyarash »

Hi

I'm working with the CSP BCI scenario and I was wondering if it was possible to detect the strength of the imagined hand movement using EEG signals and Openvibe ?

currently the scenario only classifies the imagined hand movements right or left .

Cheers,
Kiarash

jtlindgren
Posts: 778
Joined: Tue Dec 04, 2012 3:53 pm
Location: INRIA Rennes, FRANCE

Re: how to detect strength of hand movement in the BCI scena

Post by jtlindgren »

Hi,

the classifier processor box returns additional outputs such as class probability that can be used as a strength guess. See the box manuals for trainer/processor boxes.

In theory, if we knew the strength of each training trial, we could build a regression model predicting this strength, but unfortunately its hard to extract such info from the user correctly in the first place.

Cheers,
Jussi

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