Study type: Medical/biological study (experimental study)

Pulse activity of populations of cortical neurons under microwave exposures of different intensity med./bio.

By: Chizhenkova RA
Published in: Bioelectrochemistry 2004; 63 (1-2): 343-346
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Aim of study (acc. to author)

To analyse the influence of microwaves of different intensities on the pattern of background activity of populations of cortical neurons, namely on characteristics of interspike intervals and spike bursts.

Endpoint

Exposure

Exposure Parameters
Exposure 1: 800 MHz
Exposure duration: 1 min
Exposure 2: 800 MHz
Exposure duration: 1 min
Exposure 3: 800 MHz
Exposure duration: 1 min
Exposure 4: 800 MHz
Exposure duration: 1 min
Exposure 5: 800 MHz
Exposure duration: 1 min
Exposure 6: 800 MHz
Exposure duration: 1 min

Exposure 1

Main characteristics
Frequency 800 MHz
Exposure duration 1 min
Additional info Wavelength: 37.5 cm
Modulation
Modulation type unspecified
Exposure setup
Exposure source
  • not specified
Setup The animal was restrained in a wooden frame and its head was exposed with the long axis of the head parallel to the electric field vector
Sham exposure A sham exposure was conducted.
Parameters
Measurand Value Type Method Mass Remarks
power density 2 W/m² minimum unspecified - 3 W/m² maximum value

Exposure 2

Main characteristics
Frequency 800 MHz
Exposure duration 1 min
Exposure setup
Exposure source
Parameters
Measurand Value Type Method Mass Remarks
power density 4 W/m² unspecified unspecified - -

Exposure 3

Main characteristics
Frequency 800 MHz
Exposure duration 1 min
Exposure setup
Exposure source
Parameters
Measurand Value Type Method Mass Remarks
power density 2 W/m² minimum unspecified - 4 W/m² maximum value

Exposure 4

Main characteristics
Frequency 800 MHz
Exposure duration 1 min
Exposure setup
Exposure source
Parameters
Measurand Value Type Method Mass Remarks
power density 5 W/m² unspecified unspecified - -

Exposure 5

Main characteristics
Frequency 800 MHz
Exposure duration 1 min
Exposure setup
Exposure source
Parameters
Measurand Value Type Method Mass Remarks
power density 400 W/m² unspecified unspecified - -

Exposure 6

Main characteristics
Frequency 800 MHz
Exposure duration 1 min
Exposure setup
Exposure source
Parameters
Measurand Value Type Method Mass Remarks
power density 5 W/m² minimum unspecified - 400 W/m² maximum value

Exposed system:

Methods Endpoint/measurement parameters/methodology

Investigated system:
Investigated organ system:
Time of investigation:
  • before exposure
  • during exposure
  • after exposure

Main outcome of study (acc. to author)

1-min microwave irradiations produced shifts in pulse flows of populations of cortical neurons. Rearrangements of pulse flows included alterations of values of interspike intervals and the number of spike bursts. Characteristics of microwave effects were determined by intensity of exposure. Nonlinear dependence of neuronal reactions on the parameters of microwave exposure was found.

Study character:

Study funded by

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