|Expositionsdauer||siehe add. information|
Generic UMTS test signal developed for use in bio-electromagnetic experiments (see reference article) and representing a wideband code division multiple access (WCDMA) signal at a carrier frequency close to the uplink frequency band of UMTS in frequency division duplex (FDD) mode. Due to simulated fading and power control, the signal envelope contained low frequency components of 8-12 and 1,500 Hz.
|Kammer||laterally shielded exposure cabin with the inner surface covered by pyramidal RF absorbing material|
|Aufbau||Test subjects wore a special head set consisting of a modified stereo head phone (all metallic parts removed) with small matched helical antennas mounted in a way to achieve an exposure distribution in the head similar to the case of mobile phone usage. Subjects were exposed only at the left side of the head, but they were not informed about this fact.|
|Zusatzinfo||Each subject was tested on a single week day between 3:30 and 7:00 p.m. and underwent four tests used for assessing visual perception under three different exposure conditions (high exposure, low exposure, and sham exposure) that were controlled randomly and double-blinded by control software. Additionally, all tests except the Critical Flicker and Fusion Frequency Test were presented to the subjects under a positive control condition (flicker light applied from the back) at the end of the subject's session.|
Die statistische Auswertung der erzielten Daten deckte keine statistisch signifikanten Unterschiede bei den untersuchten Parametern der visuellen Wahrnehmung zwischen den Expositions-Bedingungen und der Schein-Exposition auf.