Voorbeelden van mastoid

• A grounding electrode was placed on a prepared site over the left mastoid.

• A subclavicular ground was used instead of mastoid or earlobe leads since the subjects wore headphones during the recording.

• Some of the bone, especially the mastoid process of one adult male, showed evidence of cremation.

• Signals were then rereferenced to the left and right mastoid channels and cut into 1,100 ms epochs starting 100 ms before stimulus onset.

• The right mastoid was actively recorded and the data were re-referenced to the algebraic sum of the left and the right mastoids off-line.

• Recordings were on-line-referenced to the left mastoid and off-line-rereferenced to the average of the two mastoid recordings.

• Following cap placement, a small amount of abrasive gel was inserted into each of the electrode sites and the mastoid sites.

• All scalp electrodes were referenced to the left mastoid and off-line re-referenced to linked left and right mastoids.

• All electrodes were referenced to the left mastoid.

• The reference electrode during recording was placed at the left mastoid.

• All scalp electrodes were referenced to the left mastoid.

• At one time, prolonged and painful surgery was necessary in treating mastoid infections.

• One recollects operations for mastoid; a disfiguring operation very often, but today it is most unusual.

• There was a mastoid operation in 1920, which left him with facial paralysis and deafness.

• Since then a mastoid is a relatively minor complaint compared with 40 or 45 years ago.