Modeling cell dynamics under mobile phone radiation.

Nonlinear dynamics, psychology, and life sciences · 2007 · Unclear · Insufficient evidence

← Research stream

UnclearInsufficient evidencePaper 6461

Study snapshot

PublicationNonlinear dynamics, psychology, and life sciences · 2007

Study typeother

Reported directionUnclear

Evidence ratingInsufficient

Abstract

Perturbations by pulse-modulated microwave radiation from GSM mobile phones on neuron cell membrane gating and calcium oscillations have been suggested as a possible mechanism underlying activation of brain states and electroencephalographic epiphenomena. As the employ of UMTS phones seems to reveal other symptoms, a unified phenomenological framework is needed. In order to explain possible effects of mobile phone radiation on cell oscillations, GSM and UMTS low-frequency envelopes have been detected, recorded and used as input in cell models. Dynamical systems endowed with contiguous regular and chaotic regimes suitable to produce stochastic resonance can both account for the perturbation of the neuro-electrical activity and even for the low intensity of the signal perceived by high sensitive subjects. Neuron models of this kind can be employed as a reductionist hint for the mentioned phenomenology. The Hindmarsh-Rose model exhibits frequency enhancement and regularization phenomena induced by weak GSM and UMTS. More realistic simulations of cell membrane gating and calcium oscillations have been performed with the help of an adaptation of the Chay-Keizer dynamical system. This scheme can explain the suspected subjective sensitivity to mobile phone signals under the thermal threshold, in terms of cell calcium regularity mechanisms. Concerning the two kinds of emission, the stronger occupation of the ELF band of last generation UMTS phones is compensated by lower power emitted.

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 directionunclear

PopulationNot supplied

Sample sizeNot supplied

Exposuremicrowave

Evidence strengthInsufficientConfidence: 74% · Peer reviewed: yes

Main findings

The paper uses recorded low-frequency envelopes from GSM and UMTS phone emissions as inputs to dynamical neuron/cell models (Hindmarsh-Rose; adapted Chay-Keizer) and reports that weak GSM/UMTS inputs can induce frequency enhancement and regularization phenomena in the models, proposed as a possible explanation for perturbations of neuro-electrical activity and calcium oscillation regularity under thermal thresholds.

Outcomes measured

neuron cell membrane gating
calcium oscillations
neuro-electrical activity (modeled)
frequency enhancement/regularization (modeled)

Limitations

Modeling/simulation study; no direct biological/clinical measurements reported in the abstract
Exposure metrics (e.g., carrier frequency, SAR, power density) are not quantified in the abstract
Mechanistic claims are framed as possible/suspected and phenomenological

View raw extracted JSON

{
  "study_type": "other",
  "exposure": {
    "band": "microwave",
    "source": "mobile phone",
    "frequency_mhz": null,
    "sar_wkg": null,
    "duration": null
  },
  "population": null,
  "sample_size": null,
  "outcomes": [
    "neuron cell membrane gating",
    "calcium oscillations",
    "neuro-electrical activity (modeled)",
    "frequency enhancement/regularization (modeled)"
  ],
  "main_findings": "The paper uses recorded low-frequency envelopes from GSM and UMTS phone emissions as inputs to dynamical neuron/cell models (Hindmarsh-Rose; adapted Chay-Keizer) and reports that weak GSM/UMTS inputs can induce frequency enhancement and regularization phenomena in the models, proposed as a possible explanation for perturbations of neuro-electrical activity and calcium oscillation regularity under thermal thresholds.",
  "effect_direction": "unclear",
  "limitations": [
    "Modeling/simulation study; no direct biological/clinical measurements reported in the abstract",
    "Exposure metrics (e.g., carrier frequency, SAR, power density) are not quantified in the abstract",
    "Mechanistic claims are framed as possible/suspected and phenomenological"
  ],
  "evidence_strength": "insufficient",
  "confidence": 0.74,
  "peer_reviewed_likely": "yes",
  "keywords": [
    "GSM",
    "UMTS",
    "mobile phone radiation",
    "pulse-modulated microwave",
    "low-frequency envelope",
    "ELF band",
    "stochastic resonance",
    "Hindmarsh-Rose model",
    "Chay-Keizer model",
    "calcium oscillations",
    "membrane gating"
  ],
  "suggested_hubs": []
}

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: Not supplied
PubMed: 17355812

Read the original paper →

Related papers

← Back to the Research Library