Our Obsession With Smartphones Reduces Our Brain Power, Says Study

The phone wins every time. GaudiLab/Shutterstock

Younger generations are often accused of going around glued to their phones (although the rise of the silver surfer means this isn’t strictly fair). Even though you can argue that means infinite knowledge and information at your fingertips, a new study has shown smartphones can also reduce our brain power and a specific type of intelligence. 

It’s all down to our attention continuously wandering towards our phones, which the researchers argue in their study published in the online Journal of the Association of Consumer Research is reducing our available cognitive capacity.

They decided to test the “brain drain” hypothesis, which posits that knowing our smartphone is in the vicinity uses up “limited-capacity cognitive resources, thereby leaving fewer resources available for other tasks and undercutting cognitive performance.”

The brain has a finite pool of attention resources – the “limited-capacity” cognitive resources – that control both attention and other cognitive processes. When these resources are used to try and prevent automatic attention going towards our phone, we are tying up these resources, making them unavailable to carry out other tasks, meaning the performance of these tasks suffer.

The researchers discovered that just by having a smartphone in your eye line, you are more likely to fail at simple tasks and remembering things, and this holds true when your phone is in your pocket, your bag, or even in the next room.

To study this, they conducted experiments testing 520 university students on their memory and intelligence while in the presence of their phones. The participants answered exam questions that tested mathematics, memory, and reasoning, while their phones were randomly assigned to be on their desk, in their pocket, in their bag, or in the next room.

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