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Variable time delay between sound onset and magnetic cortical response to word * 617
Рубрика: Poster presentation abstracts
Тип: научная статья
* Supported by Russian Foundation of Basic Research, grants 11-07-00637-a and 11-04-12086-ofi_m.
Magnetic responses to word can be seen on many sensors of the Elekta Neuromag system over left and right temporal cortex. There is hardly a direct connection from the ear to any of these sites. The time needed to reach the target area depends on the actual route the neural pulses travel before they activate cortical generators of current producing magnetic signal. This time can provide valuable information on the sequence of events during word perception. However, it is difficult to determine this time since both the uttered word and the cortical response are extended in time for hundreds of milliseconds.