RF Safe

Effects of GSM signals during exposure to event related potentials (ERPs).

International journal of occupational medicine and environmental health · 2010 · Mixed · Low evidence

← Research stream
MixedLow evidencePaper 4367

During GSM EMF exposure, P300 amplitude was lower only while exposure was ongoing and returned to pre-exposure values after discontinuation; this change was not observed during sham exposure. No statistically significant changes were found for N1, N2, P2 late…

Study snapshot

PublicationInternational journal of occupational medicine and environmental health · 2010
Study typeother
Reported directionMixed
Evidence ratingLow

Abstract

OBJECTIVES: The primary aim of this work was to assess the effect of electromagnetic field (EMF) from the GSM mobile phone system on human brain function. The assessment was based on the assay of event related potentials (ERPs). MATERIAL AND METHODS: The study group consisted of 15 volunteers, including 7 men and 8 women. The test protocol comprised determination of P300 wave in each volunteer during exposure to the EMF. To eliminate possible effects of the applied test procedure on the final result, the test was repeated without EMF exposure. P300 latency, amplitude, and latency of the N1, N2, P2 waves were analysed. RESULTS: The statistical analysis revealed an effect of EMF on P300 amplitude. In the experiment with EMF exposure, lower P300 amplitudes were observed only at the time in which the volunteers were exposed to EMF; when the exposure was discontinued, the values of the amplitude were the same as those observed before EMF application. No such change was observed when the experiment was repeated with sham exposure, which may be considered as an indirect proof that lower P300 amplitude values were due to EMF exposure. No statistically significant changes were noted in the latencies of the N1, N2, P2 waves that precede the P300 wave, nor in the latency of the P300 itself. CONCLUSIONS: The results suggest that exposure to GSM EMF exerts some effects on CNS, including effects on long latency ERPs.

Machine Enhanced Logic

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 typeother
Effect directionmixed
Population15 healthy volunteers (7 men, 8 women)
Sample size15
ExposureRF
Evidence strengthLowConfidence: 74% · Peer reviewed: yes

Main findings

During GSM EMF exposure, P300 amplitude was lower only while exposure was ongoing and returned to pre-exposure values after discontinuation; this change was not observed during sham exposure. No statistically significant changes were found for N1, N2, P2 latencies or for P300 latency.

Outcomes measured

  • Event related potentials (ERPs)
  • P300 amplitude
  • P300 latency
  • N1 latency
  • N2 latency
  • P2 latency

Limitations

  • Small sample size (n=15)
  • Exposure parameters (e.g., frequency, SAR, duration) not reported in abstract
View raw extracted JSON
{
  "study_type": "other",
  "exposure": {
    "band": "RF",
    "source": "mobile phone",
    "frequency_mhz": null,
    "sar_wkg": null,
    "duration": null
  },
  "population": "15 healthy volunteers (7 men, 8 women)",
  "sample_size": 15,
  "outcomes": [
    "Event related potentials (ERPs)",
    "P300 amplitude",
    "P300 latency",
    "N1 latency",
    "N2 latency",
    "P2 latency"
  ],
  "main_findings": "During GSM EMF exposure, P300 amplitude was lower only while exposure was ongoing and returned to pre-exposure values after discontinuation; this change was not observed during sham exposure. No statistically significant changes were found for N1, N2, P2 latencies or for P300 latency.",
  "effect_direction": "mixed",
  "limitations": [
    "Small sample size (n=15)",
    "Exposure parameters (e.g., frequency, SAR, duration) not reported in abstract"
  ],
  "evidence_strength": "low",
  "confidence": 0.74,
  "peer_reviewed_likely": "yes",
  "keywords": [
    "GSM",
    "RF EMF",
    "mobile phone",
    "event related potentials",
    "ERP",
    "P300",
    "CNS"
  ],
  "suggested_hubs": [
    {
      "slug": "occupational-exposure",
      "weight": 0.2,
      "reason": "Published in an occupational/environmental health journal, but the study itself is a volunteer experiment rather than a workplace exposure study."
    }
  ]
}
AI can be wrong. Always verify against the paper.

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: 10.2478/v10001-010-0021-8
PubMed: 20682490

Read the original paper →

Related papers

← Back to the Research Library