Background and Objectives: Some studies have investigated the effects of extremely low frequency magnetic fields (ELF-MFs) on brain signals. Few researchers have reported that human subjects exposed to magnetic fields exhibit changes in brain signals at the frequency of stimulation. In most of investigation, researchers usually take advantage of a uniform field which encompasses the head. The aim of present study was to expose different parts of the brain to ELF-MFs locally and to investigate variation of brain signal and resonance effect.
Method: Local ELF-MFs with 3, 5, 10, 17 and 45Hz frequencies and 240 μT intensity was applied on five points (T3, T4, Cz, F3and F4) of participants scalp Separately in 10-20 system. At the end, relative power over this points in common frequency bands and at the frequency of magnetic fields was evaluated by paired t-test.
General information
Acronym
IRCT registration information
IRCT registration number:IRCT201102155839N1
Registration date:2011-04-12, 1390/01/23
Registration timing:retrospective
Last update:
Update count:0
Registration date
2011-04-12, 1390/01/23
Registrant information
Name
seyed ali shafiei darabi
Name of organization / entity
Tarbiat modares university
Country
Iran (Islamic Republic of)
Phone
+98 82883839
Email address
shafiei-a@modares.ac.ir
Recruitment status
Recruitment complete
Funding source
Tarbiat Modares University
Expected recruitment start date
2008-01-01, 1386/10/11
Expected recruitment end date
2010-10-01, 1389/07/09
Actual recruitment start date
empty
Actual recruitment end date
empty
Trial completion date
empty
Scientific title
Investigation of Resonance Effect Caused by Exposure of Local extremely low frequency Magnetic Field on Brain Signals
Public title
Effect of Extremely Low Frequency Weak Local Magnetic Fields on the Brain Signals to Purpose Using in the Neurofeedback Systems
Purpose
Basic scienece
Inclusion/Exclusion criteria
Inclusion criteria: The participants were right-handed,age between from 20 to 32y, must be mel
Exclusion criteria: have positive history for epilepsy, chronic pain or psychological disorders leading to take long-term medication
Age
From 20 years old to 32 years old
Gender
Male
Phase
N/A
Groups that have been masked
No information
Sample size
Target sample size:
10
Randomization (investigator's opinion)
N/A
Randomization description
Blinding (investigator's opinion)
Not blinded
Blinding description
Placebo
Not used
Assignment
Single
Other design features
Secondary Ids
empty
Ethics committees
1
Ethics committee
Name of ethics committee
Tarbiat Modares University
Street address
Tarbiat Modares University,Tehran,Iran
City
Tehran
Postal code
Approval date
2009-08-15, 1388/05/24
Ethics committee reference number
150/32315
Health conditions studied
1
Description of health condition studied
helthy subject paticipated in this study
ICD-10 code
ICD-10 code description
2
Description of health condition studied
effect of exteremly low frequeny magnetic field upon helth university students
ICD-10 code
ICD-10 code description
Primary outcomes
1
Description
variation in brain signals
Timepoint
during and 10min after exposur of magnetic field
Method of measurement
recording brain signals by EEG instrument
2
Description
variation in brain signals
Timepoint
10min after Magnetic field exposure
Method of measurement
recording brain signal by EEG instrument
Secondary outcomes
empty
Intervention groups
1
Description
Intervention Group: ELF magnetic field exposur on scalp of helthy participants
Category
Other
2
Description
Control Group: there wasn't any magnetic field
Category
Placebo
Recruitment centers
1
Recruitment center
Name of recruitment center
Tarbiat Modares University
Full name of responsible person
Street address
City
Tehran
2
Recruitment center
Name of recruitment center
Tarbiat Modares University
Full name of responsible person
Street address
City
Tehran
Sponsors / Funding sources
1
Sponsor
Name of organization / entity
Tarbiat Modares University
Full name of responsible person
Seyed Ali Shafiei Darabi
Street address
Tarbiat Modares University,Tehran,Iran
City
Tehran
Grant name
Grant code / Reference number
Is the source of funding the same sponsor organization/entity?
Yes
Title of funding source
Tarbiat Modares University
Proportion provided by this source
Public or private sector
empty
Domestic or foreign origin
empty
Category of foreign source of funding
empty
Country of origin
Type of organization providing the funding
empty
2
Sponsor
Name of organization / entity
Tarbiat Modares University
Full name of responsible person
Seyed Ali Shafiei Darabi
Street address
Medical Physics Fculty,Tarbiat Modares University,Tehran,Iran
City
Tehran
Grant name
Grant code / Reference number
Is the source of funding the same sponsor organization/entity?
Yes
Title of funding source
Tarbiat Modares University
Proportion provided by this source
Public or private sector
empty
Domestic or foreign origin
empty
Category of foreign source of funding
empty
Country of origin
Type of organization providing the funding
empty
Person responsible for general inquiries
Contact
Name of organization / entity
Tarbiat Modares University
Full name of responsible person
Seyed Ali Shafiei Darabi
Position
Ph.D Student
Other areas of specialty/work
Street address
Medical Physics Faculty,Tarbiat Modares University,Tehran,Iran
City
Tehran
Postal code
Phone
+98 21 8288 3839
Fax
Email
slaishafiei@yahoo.com
Web page address
Person responsible for scientific inquiries
Contact
Name of organization / entity
Tarbiat Modares University
Full name of responsible person
Seyed Mohmmad Firoozabadi
Position
Prof
Other areas of specialty/work
Street address
Tarbiat Modares University, Tehran, Iran
City
Tehran
Postal code
Phone
+98 21 8288 3821
Fax
Email
pourmir@modares.ac.ir
Web page address
Person responsible for updating data
Contact
Name of organization / entity
Full name of responsible person
Seyed Ali Shafiei Darabi
Position
Other areas of specialty/work
Street address
City
Postal code
Phone
Fax
Email
salishafiei@yahoo.com shafiei-a@modares.ac.ir
Web page address
Sharing plan
Deidentified Individual Participant Data Set (IPD)