# WEB-002 — Skin temperature and autonomic responses during a human 3.5 GHz experiment

Why this matters
Experiments with volunteers can bring exposure questions closer to everyday experience. This blinded study detected small physiological differences that deserve a precise reading and further investigation.

Id: WEB-002

Author: Jamal et al.

Full Authors: Layla Jamal; Lisa Michelant; Stéphane Delanaud; Laurent Hugueville; Paul Mazet; Philippe Lévêque; Tamara Baz; Véronique Bach; Brahim Selmaoui

Year: 2024

Title: Autonomous nervous system responses to environmental-level exposure to 5G's first deployed band (3.5 GHz) in healthy human volunteers

Journal: Experimental physiology

Citation: Layla Jamal; Lisa Michelant; Stéphane Delanaud; Laurent Hugueville; Paul Mazet; Philippe Lévêque; Tamara Baz; Véronique Bach; Brahim Selmaoui. Autonomous nervous system responses to environmental-level exposure to 5G's first deployed band (3.5 GHz) in healthy human volunteers. Experimental physiology. 2024. doi:10.1113/ep092083.

Doi: 10.1113/ep092083

Pmid: 39404491

Topic: Human physiology and function; 3.5 GHz physiological responses

Verification Group: Original text reviewed

Record Role: Original text reviewed

Featured: False

Exposure: Pulse-modulated 3.5 GHz, 577 μs/4.6 ms; 25.5 min; about 2 V/m at head and 1.5 V/m at trunk. Reported head/brain SAR 0.037/0.008 mW/kg.

Design: 44 healthy adults; randomised, counterbalanced, triple-blind sham crossover; temperature and electrodermal recordings.

Finding: Selected head/neck temperature and electrodermal measures differed during or after exposure.

Statistics: See reported finding and original tables; effect sizes not independently recalculated.

Boundary: Differences remained within normal physiological ranges; an uncontrolled factor could contribute. Pulse modulation is documented, NR traffic is not. A 2025 correction adds funding information.

Protection Question: Which exposure conditions and biological models reproduce this response, and what would establish its relevance to health?

Access: Original methods/results sections reviewed; no independent raw-data or supplement audit.

Locator: Original results/methods sections

Notice: Correction published 13 October 2025 (10.1113/EP093357; PMID 41084331) adds omitted EU funding information; it does not amend the physiological results. Correction text reviewed 21 October 2026.

Funding: EU Horizon Europe grant 101057262, as supplied by the 2025 correction.

Conflicts: CONFLICT OF INTEREST The authors and their collaborators declare no conflicts of interest.

Source Url: https://doi.org/10.1113/ep092083

Retrieval Links: https://doi.org/10.1113/ep092083 | https://pubmed.ncbi.nlm.nih.gov/39404491/ | https://pmc.ncbi.nlm.nih.gov/articles/PMC11607616/ | https://doi.org/10.1113/EP093357 | https://pubmed.ncbi.nlm.nih.gov/41084331/

Verification Date: 2026-10-21

Discovery Id: EML-5G-002

Technology Tracks: 5g

Technology Connection: Relevant mobile-frequency experiment; waveform and dose described in this record.

Publication Type: Original journal research

Study Setting: People

Browse Categories: brain