6,486 Studies Reviewed. 85.2% of Original Studies Found Biological Effects. The Evidence is Clear.

Can Theta Burst Electromagnetic Fields Disrupt Learning in Planaria? Evidence of Impaired Fear-Conditioned Responses

Bioeffects Seen

Authors not listed · 2025

Share:

Planaria exposed to theta burst electromagnetic fields failed to learn fear avoidance in a T-maze.

Plain English Summary

Summary written for general audiences

Researchers exposed planaria to a theta burst electromagnetic field of 1 μT intensity and 100 Hz bursts in a T-maze with an aversive light stimulus. Planaria that received only the light stimulus learned to avoid the associated maze arm, shown by a significant decrease in preferred arm selections. Planaria exposed to the electromagnetic field before or after light exposure did not show this learning, as their arm selections remained stable.

Why This Matters

The authors suggest that TBEMF disrupts fear-related learning by interfering with theta rhythm-dependent mechanisms important for memory encoding and retrieval. They propose that further research on more complex organisms could reveal broader implications for neuroscience and clinical practice.

Exposure Information

A logarithmic frequency spectrum from 10 Hz to 100 GHz showing where this study's 100 Hz exposure sits relative to common EMF sources.Where This Frequency Sits on the EMF SpectrumELFVLFLF / MFHF / VHFUHFSHFmm10 Hz100 GHzThis study: 100 HzCell phones~1 GHzWiFi2.4 GHz5G mm28 GHzLogarithmic scale

Specific exposure levels were not quantified in this study.

Cite This Study
Unknown (2025). Can Theta Burst Electromagnetic Fields Disrupt Learning in Planaria? Evidence of Impaired Fear-Conditioned Responses.
Show BibTeX
@article{can_theta_burst_electromagnetic_fields_disrupt_learning_in_planaria_evidence_of_impaired_fear_conditioned_responses_ce4380,
  author = {Unknown},
  title = {Can Theta Burst Electromagnetic Fields Disrupt Learning in Planaria? Evidence of Impaired Fear-Conditioned Responses},
  year = {2025},
  doi = {10.1002/bem.70017},
  
}

Quick Questions About This Study

The TBEMF consisted of five pulsed bursts at 100 Hz with alternating amplitudes and an intensity of 1 μT.
Planaria exposed only to the aversive light showed a significant decrease in preferred arm selections, indicating they learned to avoid that arm.
Planaria exposed to TBEMF before or after the light phase did not show behavioral adaptation, as their arm selections remained stable, indicating no fear learning occurred.
The authors suggest TBEMF disrupts fear-related learning by interfering with theta rhythm-dependent mechanisms crucial for memory encoding and retrieval.
The authors recommend further exploration of EMF effects on more complex organisms to reveal broader implications for neuroscience and clinical practice.