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[Effects of electromagnetic radiation from handsets of cellular telephone on neurobehavioral function]

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Cao Z, Liu J, Li S, Zhao X. · 2000

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Cell phone users showed significantly slower reaction times that worsened with longer usage duration, suggesting cumulative brain function impairment.

Plain English Summary

Summary written for general audiences

Chinese researchers compared 81 cell phone users to 63 non-users from corporate settings, measuring their reaction times and other brain function tests. They found that cell phone users had significantly slower reaction times, and the longer someone had been using a phone, the worse their performance became. This suggests that regular cell phone use may impair basic brain functions like processing speed and coordination.

Why This Matters

This early study from China provides important evidence that cell phone radiation affects fundamental brain processes. The finding that reaction time slowed in proportion to usage duration suggests a dose-response relationship - the hallmark of a genuine biological effect rather than coincidence. What makes this research particularly relevant is that it measured real-world exposure patterns rather than artificial laboratory conditions. The neurobehavioral tests used here assess the same cognitive functions you rely on for driving, work performance, and daily decision-making. While this study lacks specific radiation measurements, it demonstrates measurable impairment in cell phone users compared to non-users in the same work environments, controlling for other lifestyle factors.

Exposure Information

Specific exposure levels were not quantified in this study.

Study Details

To study the effects of electromagnetic radiation from handsets of cellular telephone on neurobehavioral function

81 staff with handsets of cellular telephone and 63 staff without handsets of cellular telephone fro...

The results showed that the average reaction time in user's group was longer than that in control gr...

The results suggested that the handset using could cause adverse health effects in neurobehavioral function.

Cite This Study
Cao Z, Liu J, Li S, Zhao X. (2000). [Effects of electromagnetic radiation from handsets of cellular telephone on neurobehavioral function] Wei Sheng Yan Jiu 29(2):102-103, 2000.
Show BibTeX
@article{z_2000_effects_of_electromagnetic_radiation_1949,
  author = {Cao Z and Liu J and Li S and Zhao X.},
  title = {[Effects of electromagnetic radiation from handsets of cellular telephone on neurobehavioral function]},
  year = {2000},
  
  url = {https://pubmed.ncbi.nlm.nih.gov/12725088/},
}
PubMed: 12725088

Cited By (3 papers)

Quick Questions About This Study

Yes, Chinese researchers found that cell phone users had significantly slower reaction times compared to non-users. The study of 144 corporate workers showed that the longer someone used their phone, the worse their performance became on brain function tests.
Research from 2000 comparing 81 cell phone users to 63 non-users found that regular phone use was associated with slower processing speed and coordination problems. Users showed measurably longer reaction times on neurobehavioral tests.
A Chinese study found a clear dose-response relationship where longer cell phone use correlated with worse brain performance. Both the fastest and slowest reaction times increased with more years of handset usage.
Yes, a 2000 study of corporate workers found that cell phone users experienced adverse neurobehavioral effects including slower reaction times and reduced coordination compared to non-users, with effects worsening over time.
Research shows cellular telephone radiation primarily affects reaction time, processing speed, and coordination. The study found significant impairments in corrected reaction numbers and both fast and slow response times among regular users.