Spoken extracts from a radio play (not audible to the subject) were played to the sending phone via a CD player at approximately 80 dB SPL (peak level).
Abstand zw. exponiertem Objekt und Expositionsquelle
5 cm
Aufbau
The mobile phone was positioned 5 cm radial to the subject's scalp midway between Oz and Pz, using a non-metallic external bracket. The phone was removed and switched on or off outside of the recording room before the start of each condition. The purported EMF attenuator (Q Link Ally) was positioned over the subject's chest (left sternum) using a comfortable chest-strap and was operated from a separate room.
Zusatzinfo
A 20 min series of tasks were performed 3 times, each with one of the 3 following (counterbalanced and single-blind) exposure conditions: exposure to an active mobile phone (MP) concurrent exposure to an active MP and a purported EMF attenuator both MP and EMF attenuator deactivated (control).
Hamblin DL et al.
(2006):
The sensitivity of human event-related potentials and reaction time to mobile phone emitted electromagnetic fields
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