Does acute exposure to the electromagnetic field emitted by a mobile phone influence visual evoked potentials? A pilot study.

Central European journal of public health · 1998 · No effect · Low evidence

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No effectLow evidencePaper 4086

In a pilot experimental study of 20 healthy volunteers exposed for 5 minutes to a GSM mobile phone (Motorola 8700; output power 1.5 W with antenna pulled up), no statistically significant effects were observed on VEP latencies or amplitudes.

Study snapshot

PublicationCentral European journal of public health · 1998

Study typeother

Reported directionNo effect

Evidence ratingLow

Abstract

To search for a potential negative influence on the central nervous system (CNS) of the electromagnetic field emitted by a mobile phone, the authors performed a pilot experimental study of the influence of a single short acute exposure to the GSM mobile phone Motorola 8700, using visual evoked potentials (VEP) examination as an electrophysiological marker of CNS dysfunction. The study group consisted of 20 healthy volunteers. The duration of exposure was 5 minutes. The output power of the device was 1.5 W when the antenna was pulled up. Five parameters of VEP were evaluated by means of multifactorial ANOVA. Confounding effects of age, sex, and of the call in itself were taken into consideration. No statistically significant influence of the above-described exposure to the electromagnetic field emitted by the mobile phone on latencies or amplitudes of VEP was observed.

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 directionno_effect

Population20 healthy volunteers

Sample size20

ExposureRF · 5 minutes (single acute exposure)

Evidence strengthLowConfidence: 78% · Peer reviewed: yes

Main findings

Outcomes measured

visual evoked potentials (VEP) latencies
visual evoked potentials (VEP) amplitudes

Limitations

Pilot study
Small sample size (n=20)
Frequency and SAR not reported

View raw extracted JSON

{
  "study_type": "other",
  "exposure": {
    "band": "RF",
    "source": "mobile phone",
    "frequency_mhz": null,
    "sar_wkg": null,
    "duration": "5 minutes (single acute exposure)"
  },
  "population": "20 healthy volunteers",
  "sample_size": 20,
  "outcomes": [
    "visual evoked potentials (VEP) latencies",
    "visual evoked potentials (VEP) amplitudes"
  ],
  "main_findings": "In a pilot experimental study of 20 healthy volunteers exposed for 5 minutes to a GSM mobile phone (Motorola 8700; output power 1.5 W with antenna pulled up), no statistically significant effects were observed on VEP latencies or amplitudes.",
  "effect_direction": "no_effect",
  "limitations": [
    "Pilot study",
    "Small sample size (n=20)",
    "Frequency and SAR not reported"
  ],
  "evidence_strength": "low",
  "confidence": 0.78,
  "peer_reviewed_likely": "yes",
  "keywords": [
    "GSM",
    "mobile phone",
    "radiofrequency",
    "acute exposure",
    "central nervous system",
    "visual evoked potentials",
    "VEP",
    "electrophysiology"
  ],
  "suggested_hubs": []
}

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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: Not supplied
PubMed: 9919379

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