ANTERIOR CINGULATE CORTEX
People who do more media multitasking—such as looking at a smartphone while watching TV—perform worse on cognitive control tasks and have a smaller density of gray matter in the anterior cingulate cortex, a brain region associated with executive function. —Loh and Kanai, PLOS One, 2014
RIGHT PREFRONTAL CORTEX
In comparison with non-users, heavy smartphone users show impaired attention, lower ability to process numbers, and reduced excitability in the right prefrontal cortex, an area associated with decision-making. —Hadar et al., PLOS One, 2017
NUCLEUS ACCUMBENS
A higher daily frequency of checking Facebook on a smartphone was associated with smaller gray matter volumes in the nucleus accumbens, a brain region associated with tracking rewards such as food and sex. —Montag et al., Behavioral Brain Research, 2017
SENSORY INTEGRATION
People…