Effect Of Electromagnetic Waves Emitted From Mobile Phone On Brain Stem Auditory Evoked Potential In Adult Males.

Indian journal of physiology and pharmacology · 2015 · Harm · Low evidence

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HarmLow evidencePaper 2924

Study snapshot

PublicationIndian journal of physiology and pharmacology · 2015

Study typeother

Reported directionHarm

Evidence ratingLow

Abstract

Mobile phone (MP) is commonly used communication tool. Electromagnetic waves (EMWs) emitted from MP may have potential health hazards. So, it was planned to study the effect of electromagnetic waves (EMWs) emitted from the mobile phone on brainstem auditory evoked potential (BAEP) in male subjects in the age group of 20-40 years. BAEPs were recorded using standard method of 10-20 system of electrode placement and sound click stimuli of specified intensity, duration and frequency.Right ear was exposed to EMW emitted from MP for about 10 min. On comparison of before and after exposure to MP in right ear (found to be dominating ear), there was significant increase in latency of II, III (p < 0.05) and V (p < 0.001) wave, amplitude of I-Ia wave (p < 0.05) and decrease in IPL of III-V wave (P < 0.05) after exposure to MP. But no significant change was found in waves of BAEP in left ear before vs after MP. On comparison of right (having exposure routinely as found to be dominating ear) and left ears (not exposed to MP), before exposure to MP, IPL of IIl-V wave and amplitude of V-Va is more (< 0.001) in right ear compared to more latency of III and IV wave (< 0.001) in left ear. After exposure to MP, the amplitude of V-Va was (p < 0.05) more in right ear compared to left ear. In conclusion, EMWs emitted from MP affects the auditory potential.

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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 typeother

Effect directionharm

PopulationAdult male subjects aged 20–40 years

Sample sizeNot supplied

ExposureRF · ~10 min (right ear exposure)

Evidence strengthLowConfidence: 66% · Peer reviewed: yes

Main findings

After ~10 min right-ear mobile phone exposure, the right ear showed significant increases in latency of waves II and III (p<0.05) and wave V (p<0.001), an increase in amplitude of the I-Ia wave (p<0.05), and a decrease in IPL of the III–V wave (p<0.05). No significant before-vs-after changes were reported for the left ear. The authors conclude that electromagnetic waves emitted from mobile phones affect auditory potential.

Outcomes measured

Brainstem auditory evoked potential (BAEP) wave latencies (I–V)
BAEP wave amplitudes (e.g., I-Ia, V-Va)
Interpeak latencies (IPL) (e.g., III–V, II–V)

Limitations

Sample size not reported in the provided abstract/metadata
Exposure characteristics (e.g., frequency, SAR, phone model, distance) not reported
Short exposure duration (~10 minutes)
Study design details (e.g., randomization/blinding/control condition) not described in the abstract

View raw extracted JSON

{
  "study_type": "other",
  "exposure": {
    "band": "RF",
    "source": "mobile phone",
    "frequency_mhz": null,
    "sar_wkg": null,
    "duration": "~10 min (right ear exposure)"
  },
  "population": "Adult male subjects aged 20–40 years",
  "sample_size": null,
  "outcomes": [
    "Brainstem auditory evoked potential (BAEP) wave latencies (I–V)",
    "BAEP wave amplitudes (e.g., I-Ia, V-Va)",
    "Interpeak latencies (IPL) (e.g., III–V, II–V)"
  ],
  "main_findings": "After ~10 min right-ear mobile phone exposure, the right ear showed significant increases in latency of waves II and III (p<0.05) and wave V (p<0.001), an increase in amplitude of the I-Ia wave (p<0.05), and a decrease in IPL of the III–V wave (p<0.05). No significant before-vs-after changes were reported for the left ear. The authors conclude that electromagnetic waves emitted from mobile phones affect auditory potential.",
  "effect_direction": "harm",
  "limitations": [
    "Sample size not reported in the provided abstract/metadata",
    "Exposure characteristics (e.g., frequency, SAR, phone model, distance) not reported",
    "Short exposure duration (~10 minutes)",
    "Study design details (e.g., randomization/blinding/control condition) not described in the abstract"
  ],
  "evidence_strength": "low",
  "confidence": 0.66,
  "peer_reviewed_likely": "yes",
  "keywords": [
    "mobile phone",
    "electromagnetic waves",
    "RF exposure",
    "brainstem auditory evoked potential",
    "BAEP",
    "latency",
    "amplitude",
    "interpeak latency",
    "adult males"
  ],
  "suggested_hubs": [
    {
      "slug": "mobile-phones-rf",
      "weight": 0.9,
      "reason": "Study evaluates effects of mobile phone-emitted electromagnetic waves on BAEP outcomes."
    }
  ]
}

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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: 27530007

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