A Longitudinal Study of Psychophysiological Indicators in Pupils Users of Mobile Communications in Russia (2006-2017): Children Are in the Group of Risk

2019 · Harm · Moderate evidence

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HarmModerate evidencePaper 1775

The longitudinal study found that chronic exposure to RF EMF from mobile phones negatively affected children's central nervous system, increasing reaction times, impairing phonemic perception and attention, increasing fatigue, and reducing working capacity. U…

Study snapshot

Publicationmanual · 2019

Study typecohort

Reported directionHarm

Evidence ratingModerate

Abstract

A Longitudinal Study of Psychophysiological Indicators in Pupils Users of Mobile Communications in Russia (2006-2017): Children Are in the Group of Risk By Yury G. Grigoriev, Natalia I. Khorseva. Chapter 10: 237-252. Abstract The human brain is exposed to electromagnetic fields of the radio frequency range (RF EMF) constantly, around the clock, from the base stations. The decision of the IARC in 2011 has determined social and ethical problems for society and for scientists-the definition of risk for the population, including children. Children are the most active group of mobile communication users. Unfortunately, the current assessment of the impact of RF EMF on the children's brains through questionnaires conducted in epidemiological studies is not convincing. The chronic impact of RF EMR, including the radiation of mobile phones on the bodies of children and adolescents, in particular on their psychophysiological and cognitive functions, have not been studied. This publication presents the results of a longitudinal study of the psychophysiological indicators of children and teenage mobile communication users conducted in Russia from 2006 to present. The patterns of the negative influence of mobile phone radiation on the auditory and visual system, fatigue and performance, and on the parameters of attention and memory are established. The undeniable advantage of these studies is not only the presence of a control group, but also the development and implementation of preventive measures to reduce the negative impact of mobile phone radiation. Conclusions ....So, the longitudinal changes in the psychophysiological indicators of children who use mobile phones convincingly show that chronic exposure to electromagnetic radiation from a mobile phone may negatively affect the central nervous system of the child: 1. The reaction time to sound and light stimuli is increased; 2. There is an increase in the number of violations of phonemic perception and the number of missed signals when a sound stimulus is presented; 3. Indicators of arbitrary attention and semantic memory deteriorate; 4. There are increased parameters of fatigue and decreased parameters of working capacity It should be especially noted that in most cases in children who are active users of mobile communication, changes in psychophysiological indicators either were within the lower limit of the norm or already go beyond it.... It was found that the safe mode of use (headphones, speakerphone, use of SMS, MMS) statistically significantly improve ALL psychophysiological indicators. We believe that the results of our longitudinal observations clearly show that the RF EMF from mobile phones affects psychophysiological indicators of children and adolescents. Based on our results, it can be confidently affirmed that children are located in the group at risk. It should be recognized and the efforts of the scientific community to reduce the risk of adverse effects on the organisms of children should be made. One of the possible ways of reducing the impact of electromagnetic fields on children is an understanding of the dangers by the parents and children, the use of mobile communication, and a voluntary choice of the form of communication, that is, the introduction of the concept of "voluntary risk." Index pp. 253-264. Effects of RF-EMF on the Human Resting-State EEG-the Inconsistencies in the Consistency. Part 1: Non- Exposure-Related Limitations of Comparability Between Studies Danker-Hopfe H, Eggert T, Dorn H, Sauter C. Effects of RF-EMF on the Human Resting-State EEG-the Inconsistencies in the Consistency. Part 1: Non-Exposure-Related Limitations of Comparability Between Studies. Bioelectromagnetics. Published online June 18, 2019. doi.org Abstract The results of studies on possible effects of radiofrequency electromagnetic fields (RF-EMFs) on human waking electroencephalography (EEG) have been quite heterogeneous. In the majority of studies, changes in the alpha- frequency range in subjects who were exposed to different signals of mobile phone-related EMF sources were observed, whereas other studies did not report any effects. In this review, possible reasons for these inconsistencies are presented and recommendations for future waking EEG studies are made. The physiological basis of underlying brain activity, and the technical requirements and framework conditions for conducting and analyzing the human resting-state EEG are discussed. Peer-reviewed articles on possible effects of EMF on waking EEG were evaluated with regard to non-exposure-related confounding factors. Recommendations derived from international guidelines on the analysis and reporting of findings are proposed to achieve comparability in future studies. In total, 22 peer-reviewed studies on possible RF-EMF effects on human resting- state EEG were analyzed. EEG power in the alpha frequency range was reported to be increased in 10, decreased in four, and not affected in eight studies. All reviewed studies differ in several ways in terms of the methodologies applied, which might contribute to different results and conclusions about the impact of EMF on human resting-state EEG. A discussion of various study protocols and different outcome parameters prevents a scientifically sound statement on the impact of RF-EMF on human brain activity in resting-state EEG. Further studies which apply comparable, standardized study protocols are recommended. Open access paper: onlinelibrary.wiley.com

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AI evidence extraction

Structured fields below were generated from the paper’s abstract and metadata to make the evidence easier to inspect. Automated extraction may be incomplete or incorrect; verify important details against the original paper.

Study typecohort

Effect directionharm

Populationchildren and adolescents in Russia

Sample sizeNot supplied

ExposureRF · 2006-2017

Evidence strengthModerateConfidence: 70% · Peer reviewed: yes

Main findings

Outcomes measured

reaction time to sound and light stimuli
phonemic perception violations
missed auditory signals
arbitrary attention
semantic memory
fatigue parameters
working capacity

Limitations

sample size not specified
no detailed exposure quantification
potential confounding factors not detailed
results based on psychophysiological indicators without clinical diagnosis

View raw extracted JSON

{
  "study_type": "cohort",
  "exposure": {
    "band": "RF",
    "source": "mobile phone",
    "frequency_mhz": null,
    "sar_wkg": null,
    "duration": "2006-2017"
  },
  "population": "children and adolescents in Russia",
  "sample_size": null,
  "outcomes": [
    "reaction time to sound and light stimuli",
    "phonemic perception violations",
    "missed auditory signals",
    "arbitrary attention",
    "semantic memory",
    "fatigue parameters",
    "working capacity"
  ],
  "main_findings": "The longitudinal study found that chronic exposure to RF EMF from mobile phones negatively affected children's central nervous system, increasing reaction times, impairing phonemic perception and attention, increasing fatigue, and reducing working capacity. Use of safe modes like headphones or speakerphone improved all psychophysiological indicators.",
  "effect_direction": "harm",
  "limitations": [
    "sample size not specified",
    "no detailed exposure quantification",
    "potential confounding factors not detailed",
    "results based on psychophysiological indicators without clinical diagnosis"
  ],
  "evidence_strength": "moderate",
  "confidence": 0.7,
  "peer_reviewed_likely": "yes",
  "keywords": [
    "RF EMF",
    "mobile phone",
    "children",
    "psychophysiological indicators",
    "longitudinal study",
    "cognitive function",
    "fatigue",
    "attention",
    "memory"
  ],
  "suggested_hubs": [
    {
      "slug": "mobile-phone-exposure",
      "weight": 0.9,
      "reason": "Study focuses on mobile phone RF EMF exposure effects on children."
    }
  ]
}

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AI-extracted fields are generated from the abstract and metadata and may be incomplete or incorrect. This material is for informational purposes and is not medical advice.

Identifiers and source

DOI: 10.1002/bem.22194
PubMed: Not supplied

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