Ignite Creation Date:
2024-05-05 @ 11:48 AM
Last Modification Date:
2024-10-26 @ 9:14 AM
Study NCT ID:
NCT00138905
Status:
COMPLETED
Last Update Posted:
2007-09-10
First Post:
2005-08-29
Brief Title:
Experimental Study of Mobile Base Station Related Radio-Frequency Electromagnetic Radiation
Sponsor:
University of Aarhus
Organization:
University of Aarhus
Study Overview
Official Title:
Experimental Study of Mobile Base Station Related Radio-Frequency Electromagnetic Radiation in Healthy Adults and Adolescents
Status:
COMPLETED
Status Verified Date:
2007-09
Last Known Status:
None
Delayed Posting:
No
If Stopped, Why?:
Not Stopped
Has Expanded Access:
False
If Expanded Access, NCT#:
N/A
Has Expanded Access, NCT# Status:
N/A
Acronym:
None
Brief Summary:
The purpose of this study is to investigate if low intensity electromagnetic radiation can influence the cognitive performances and well being of healthy adolescents and adults Furthermore the purpose is to provide any special information about the subjects which can cause the possible reactions Finally the investigation will try to clarify if there is anything specific in the radiation signal that causes the effect
Detailed Description:
EMF-exposure has been related to reported symptoms of sleep-disorders headaches nervousness fatigue and concentration difficulties This study intends to focus on these symptoms related to the UMTS control signal
The purpose of this study is to investigate the possible annoyance from very low intensity electromagnetic radiation as it exists from modern antenna masts supporting mobile communication Also we try to get a better understanding of the specific parts of the signal leading to symptoms This investigation tries to clarify the risk for both adults and adolescents other susceptibility factors and whether the radiation changes cognitive functions The above mentioned complaints have been related to psychological distress and somatization and EMF-related complaints have been reported more by individuals with higher somatization tendency In the present study we therefore propose to control for symptoms of somatization and personality traits thought to influence perception and reporting of symptoms
In this study a signal level of 1 voltmeter 26 mWm2 will be used This level should correspond to the level experienced by the general public living rather near a base station antenna The antenna arrangement will produce an approximation to a plane wave so that the intensity is constant within 2 dB over the volume occupied by the subjects The subjects are required to sit close to a computer screen and keyboard which will modify the distribution slightly The climatic chamber used for the study is modified with absorbing lining to dampen reflections from the walls The chamber is also modified to make it a screened room to prevent external RF fields and to some extent low frequency fields to enter the chamber Except for cables to the keyboard and screen there will be no other electromagnetic radiators in the chamber The four different exposure types used are Sham exposure no radiation from the antennas a UMTS signal typical base station signal 2140 MHz a CW continuous wave of 2140 MHz and a Wideband W-CDMA signal f2140 MHz modulated with a random data sequence at a chip rate of 38 MHz corresponding to a pure UMTS modulation signal without the control signals
The purpose of this study is to investigate the possible annoyance from very low intensity electromagnetic radiation as it exists from modern antenna masts supporting mobile communication Also we try to get a better understanding of the specific parts of the signal leading to symptoms This investigation tries to clarify the risk for both adults and adolescents other susceptibility factors and whether the radiation changes cognitive functions The above mentioned complaints have been related to psychological distress and somatization and EMF-related complaints have been reported more by individuals with higher somatization tendency In the present study we therefore propose to control for symptoms of somatization and personality traits thought to influence perception and reporting of symptoms
In this study a signal level of 1 voltmeter 26 mWm2 will be used This level should correspond to the level experienced by the general public living rather near a base station antenna The antenna arrangement will produce an approximation to a plane wave so that the intensity is constant within 2 dB over the volume occupied by the subjects The subjects are required to sit close to a computer screen and keyboard which will modify the distribution slightly The climatic chamber used for the study is modified with absorbing lining to dampen reflections from the walls The chamber is also modified to make it a screened room to prevent external RF fields and to some extent low frequency fields to enter the chamber Except for cables to the keyboard and screen there will be no other electromagnetic radiators in the chamber The four different exposure types used are Sham exposure no radiation from the antennas a UMTS signal typical base station signal 2140 MHz a CW continuous wave of 2140 MHz and a Wideband W-CDMA signal f2140 MHz modulated with a random data sequence at a chip rate of 38 MHz corresponding to a pure UMTS modulation signal without the control signals
Study Oversight
Has Oversight DMC:
None
Is a FDA Regulated Drug?:
None
Is a FDA Regulated Device?:
None
Is an Unapproved Device?:
None
Is a PPSD?:
None
Is a US Export?:
None
Is an FDA AA801 Violation?:
None
Secondary IDs
| Secondary ID | Type | Domain | Link |
|---|---|---|---|
| Project ID 0402- | None | None | None |