Papageorgiou CC et al. · 2006
Researchers exposed 19 healthy adults to 900 MHz mobile phone radiation while measuring their brain activity during a working memory test. The radiation significantly altered brain wave patterns called P50 components, which reflect how the brain processes information before conscious awareness. These changes suggest that mobile phone emissions can affect fundamental brain processing, even during brief exposures.
Krause CM et al. · 2006
Finnish researchers studied how mobile phone radiation affects brain activity in 15 children (ages 10-14) while they performed memory tasks. When exposed to 902 MHz radiation from an active phone, the children showed measurable changes in their brain wave patterns during both memory encoding and recognition phases. This demonstrates that cell phone radiation can directly alter brain function in developing minds, even during short-term exposure.
Keshvari J, Keshvari R, Lang S. · 2006
Researchers used computer modeling to examine how radiofrequency energy from cell phones is absorbed by children's heads compared to adults, accounting for the fact that children's tissues have higher water content. They tested common cell phone frequencies (900, 1800, and 2450 MHz) and found that even when tissue water content was increased by 5-20% to simulate children's physiology, energy absorption (SAR) varied by only about 5% on average. The study suggests that tissue composition differences between children and adults may have less impact on RF absorption than previously thought.
Keetley V, Wood AW, Spong J, Stough C. · 2006
Researchers tested 120 people on cognitive tasks while exposed to cell phone radiation at maximum legal power levels. They found that phone radiation slowed down simple reaction times (how quickly people could respond to basic signals) but improved performance on complex memory tasks. This suggests cell phone radiation can alter brain function in measurable ways, though the effects varied depending on the type of mental task.
Fayos-Fernandez J et al. · 2006
Spanish researchers studied how metallic ear piercings affect radiation absorption when using cell phones at 900 MHz. They found that wearing metal objects near your ear increases peak SAR (specific absorption rate) values, meaning more electromagnetic energy gets absorbed by your head tissues. This suggests that common accessories like earrings could amplify your exposure to cell phone radiation.
Eliyahu I et al. · 2006
Israeli researchers exposed 36 healthy men to cell phone radiation at 890 MHz for two hours while they performed cognitive tasks designed to test different brain regions. They found that radiation exposure to the left side of the brain significantly slowed reaction times for left-hand responses, particularly during the second hour of exposure. This suggests that cell phone radiation can impair cognitive performance in the specific brain areas closest to the phone.
de Salles AA, Bulla G, Rodriguez CE. · 2006
Researchers used computer simulations to compare how much radiofrequency radiation children's heads absorb from mobile phones compared to adults. They found that 10-year-old children absorb over 60% more radiation in their heads than adults when using the same phone. This happens because children have smaller heads, thinner skulls, and different tissue properties that allow deeper radiation penetration.
Beede KE, Kass SJ. · 2006
Researchers tested 36 college students in driving simulators to see how hands-free cell phone conversations affected their driving ability. They found that talking on the phone significantly impaired performance in all four areas measured: traffic violations (like speeding), lane maintenance, attention lapses (like stopping at green lights), and reaction times. The study demonstrates that even hands-free phone calls create dangerous cognitive distractions while driving.
Wilen J, Johansson A, Kalezic N, Lyskov E, Sandstrom M. · 2006
Swedish researchers exposed 20 people who experience symptoms from mobile phones and 20 people without symptoms to 900 MHz cell phone radiation for 30 minutes at levels typical of phone use. While the radiation didn't cause immediate measurable changes in either group, the symptomatic individuals showed different nervous system patterns during cognitive tests, suggesting their autonomic nervous systems may function differently regardless of radiation exposure.
Hutter HP, Moshammer H, Wallner P, Kundi M. · 2006
Researchers measured EMF exposure from cell phone towers in the bedrooms of 365 people living nearby and tested their health and thinking abilities. Even though the radiation levels were extremely low (far below safety guidelines), people closer to the towers reported more headaches and showed changes in mental performance. This suggests that even very weak EMF exposure from cell towers might affect how people feel and think.
Wilen J, Johansson A, Kalezic N, Lyskov E, Sandstrom M · 2006
Swedish researchers exposed 20 people who experience symptoms from mobile phones (like headaches or fatigue) and 20 people without such symptoms to 30 minutes of GSM cell phone radiation at 1 W/kg SAR. While the radiation exposure itself didn't cause measurable changes in either group, the symptomatic individuals showed different nervous system patterns during cognitive tests, suggesting their autonomic nervous systems may respond differently to stress regardless of EMF exposure.
Preece AW et al. · 2005
Researchers tested whether cell phone radiation at 902 MHz affects thinking and reaction time in 18 children ages 10-12. While children showed slightly faster reaction times during phone exposure compared to no exposure, the differences were not statistically significant. The study failed to replicate earlier findings in adults, possibly because it used a weaker GSM phone rather than the more powerful analog phone used in previous research.
Iudice A et al. · 2005
Researchers tested how hands-free cell phone use affects driving ability when combined with alcohol and sleep deprivation. They found that using a hands-free phone while driving actually helped counteract some of alcohol's impairment effects when drivers were well-rested. However, when drivers were severely sleep-deprived (24 hours awake), the combination of alcohol and phone use created the most dangerous driving conditions.
Haarala C et al. · 2005
Researchers tested whether 902 MHz cell phone radiation affects children's thinking abilities by having 32 kids aged 10-14 take cognitive tests while exposed to both active and inactive phones. They found no differences in reaction time or accuracy between the two conditions. This challenges earlier studies suggesting cell phone radiation might actually improve cognitive performance.
Cosquer B, Kuster N, Cassel JC. · 2005
Researchers exposed rats to 2.45 GHz microwave radiation (the same frequency used in WiFi routers and microwave ovens) and tested their ability to navigate a maze with limited visual landmarks. The rats showed no impairment in their spatial memory or navigation abilities after the exposure. This study was designed to replicate earlier research that had suggested microwave exposure could affect brain function.
Christ A, Kuster N. · 2005
Researchers reviewed how radiofrequency energy from cell phones is absorbed differently in children's heads versus adults' heads. Contrary to earlier assumptions, they found that children don't necessarily absorb more RF energy than adults despite having smaller heads. The study identified that factors like tissue properties and ear structure still need more research to fully understand exposure differences.
Besset A, Espa F, Dauvilliers Y, Billiard M, de Seze R. · 2005
French researchers tested whether daily mobile phone use affects cognitive function by having 55 people use phones for 2 hours a day, 5 days a week for nearly a month. They found no measurable effects on memory, attention, information processing, or executive function compared to a control group using inactive phones. This suggests that typical daily phone use doesn't immediately impair cognitive performance, at least when tested after a 13-hour rest period.
Shinar D, Tractinsky N, Compton R · 2005
Researchers studied how phone conversations affect driving performance over time, testing drivers in a simulator across five sessions with hands-free phone tasks. They found that while phone conversations initially interfere with driving skills, drivers gradually adapt and the interference diminishes with practice, though older drivers and more complex phone tasks still showed greater impairment. This suggests the cognitive load from phone use while driving can be partially managed through experience, but significant risks remain.
Keshvari J, Lang S. · 2005
Researchers used computer models to compare how much radiofrequency energy is absorbed in children's heads versus adults' heads when exposed to cell phone frequencies. They found that differences in energy absorption depend more on individual head shape and anatomy rather than age itself. This challenges the common assumption that children automatically absorb more RF energy than adults.
Kamibeppu K, Sugiura H. · 2005
Japanese researchers surveyed 578 eighth-grade students in Tokyo to understand how mobile phones affected their friendships and behavior. They found that students who owned phones (about half the group) sent more than 10 emails daily to classmates, stayed up late messaging, and reported feeling they couldn't live without their devices. While sociable students said phones helped their friendships, many also experienced anxiety and signs of addiction-like dependence.
Hunton J, Rose JM. · 2005
Researchers compared how hands-free cell phone conversations affect driving performance compared to talking with a passenger in the car. They found that cell phone conversations require significantly more mental attention and interfere more with driving than in-person conversations because drivers must work harder to compensate for missing visual and social cues. The study also showed that people with specialized communication training (like pilots) performed better while using phones and driving.
Bit-Babik et al. · 2005
Researchers used computer modeling to compare how much radiofrequency energy from cell phones is absorbed by children's heads versus adult heads. They found that children's smaller heads absorb about the same amount of energy per gram of tissue as adult heads when exposed to the same phone emissions. This challenges earlier concerns that children might face dramatically higher radiation exposure from mobile devices.
Cosquer B, Vasconcelos AP, Frohlich J, Cassel JC. · 2005
Researchers tested whether 2.45 GHz microwaves (WiFi frequency) could damage the blood-brain barrier, a protective shield preventing harmful substances from entering the brain. After exposing rats for 45 minutes, they found no evidence that microwave radiation weakened this critical brain protection system.
Krause CM et al. · 2004
Researchers exposed 24 people to cell phone radiation (902 MHz) while they performed memory tests and measured their brain waves. Unlike their previous study which found brain wave changes, this double-blind replication study found no consistent effects on brain activity, though it did find more memory errors during EMF exposure. The inconsistent results highlight how difficult it can be to replicate EMF research findings.
Hinrichs H, Heinze HJ. · 2004
German researchers tested whether cell phone radiation affects memory by measuring brain activity while people memorized words. They found that GSM 1800 radiation (the type used in European cell phones) altered specific brain wave patterns during memory formation, though participants didn't notice any difference in their actual memory performance. This suggests cell phone radiation can interfere with normal brain processing even when we don't feel any obvious effects.
