The effects of chronic mobile phone usage on cognition should be investigated.
90 volunteers aged 17-25 years with normal hearing were divided into 3 groups according to their duration of mobile phone use (n=30 each): 1) subjects who had used mobile phones for less than five years, 2) subjects who had used mobile phones for more than five years and 3) subjects who had never used a mobile phone.
Data from two trials were obtained and averaged.
| Exposure | Parameters |
|---|---|
|
Exposure 1:
Exposure duration:
mobile phone usage for < 5 years
|
- |
|
Exposure 2:
Exposure duration:
mobile phone usage for > 5 years
|
- |
subjects were using mobile phones primarily to make phone calls, while text messaging and use of the internet constituted less than 20% of their total mobile phone use; 47% of the subjects used their mobile phone for 30 to 60 minutes per day; all were using handsets and none used Bluetooth
| Frequency | |
|---|---|
| Type | |
| Exposure duration | mobile phone usage for < 5 years |
| Exposure source |
|---|
No parameters are specified for this exposure.
| Frequency | |
|---|---|
| Type | |
| Exposure duration | mobile phone usage for > 5 years |
| Exposure source |
|
|---|
No parameters are specified for this exposure.
No significant differences in any parameter were found between the groups.
The authors conclude that chronic mobile phone usage has no detrimental effect on cognition. However, further studies with larger numbers of subjects and with a longer duration of exposure are needed to substantiate these results.
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