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Some questions

Panagiotis Artemiadis partem at mail.ntua.gr
Mon Jan 19 11:38:17 EST 2004

Dear Sirs,

    I would like to have some answers at the follwing topics :

1) Is it possible to have a mapping of brain areas regarding the desired
movement? That is, is it
possible to record signals from brain areas, and to translate them to the
stimulation of a muscle?
How exact are these signals? How can we acquire these signals? Invasive or
non-invasive methods
of interfacing? For example, with an electrode at a specific area of primary
motor cortex, can we
detect the movement of a finger? Or the stimulation of the biceps muscle?

2) Are these signals transfered through neurons' axons to the relevant
muscle? I mean, if we can not
record these signals from the primary motor cortex, are we able of acquiring
these signals from
the Peripheral Nervous System? How this can be done? Is the sEMG a possible

3) Can we detect (by processing or not) some characteristics of motion into
these signals? For
example, is a characteristic of a signal depicts the torque or velocity of
the movement of the arm?

4) Can an EEG prove usefull to the above mentioned signal-to-movement
translation? What other
methods exist?

Thank you in advance for your prompt reply


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