Spend many minutes typing on keyboard smartphones, especially using the thumbs; it could be modifying our brain, according to research published in Current Biology.
Each region of the body, from the toes to the jaw and tongue, has an area of particular processing in our brain’s emotional center, the somatosensory cortex. These areas are flexible and may change.
According to the news agency Europe Press, scientific Arko Ghosh, Institute of Neuroinformatics, University of Zurich and ETH Zurich (Switzerland), decided to investigate the impact the finger dexterity of phone users Smart has on the brain and discovered that daily plasticity of the human brain could be investigated by use of the smartphone.
“Smartphones offer us the opportunity to understand how normal life molds the brain of ordinary people,” Ghosh said. Working in teams with colleagues from the University of Freiburg (Germany), analyzed the activation in the sensorimotor cortex triggered by finger movements.
The scientists used electroencephalography to measure the cortical brain activity in 37 right-handed people, of which 26 were users of touch screen smartphone users and 11 old cell phones.
A total of 62 electrodes placed on the subject’s head recorded this potential based on the movements of the thumb, index and middle finger. The results revealed that the cortical representation in smartphone users touch screen differed compared to those with conventional mobile phones.
Ghosh also showed that the frequency of use influences smartphone cortical activity. The more they had used the phone in the last ten days, the greater the signal in the brain. This correlation was stronger in the area representing the thumb.
“Digital technology we use everyday shapes sensory processing in the brain and on a scale that surprised us,” says neuroscientist.