Diff for "SubjectPreparation" - Meg Wiki
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to ther head. 2 will be on the forehead and 2 behind the ears. In addition
we normally also attach 5 electrodes to the face to measure eye movements
to their head, with 2 on the forehead and 2 behind the ears. In addition
we normally attach 5 electrodes to the face as well to measure eye movements
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measure 4 landmarks and a number of additional points on the head to indicate measure 3 landmarks and a number of additional points on the head to indicate

Subject Preparation

Subjects need to be free of magnetic materials, like coins, watches and other metal items. Underwired bras can be a problem, and even dyes in clothing or hairdye can cause interference.

To track head movements volunteers need to have 4 small coils attached to their head, with 2 on the forehead and 2 behind the ears. In addition we normally attach 5 electrodes to the face as well to measure eye movements and blinks.

The location of the coils needs to be measured with a 3D digitiser. We also measure 3 landmarks and a number of additional points on the head to indicate headshape and enable easier matching to an MRI structural scan.

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CbuMeg: SubjectPreparation (last edited 2015-03-23 12:34:22 by OlafHauk)