Facebook and Kids: Moderation is the Key
Saturday, February 28th, 2009
Before the Rocky Mountain News was sadly shuttered this week, I was interviewed for a story that never ran about concerns expressed by Lady Greenfield, professor of synaptic pharmacology at Lincoln college, Oxford, and director of the Royal Institution, that social networking sites such as Facebook infantilize the brains of children and contribute to attentional and behavioral problems. Her concerns, expressed in the British press, are centered on the fact that experience changes the brain, and that repeated exposure to particular stimuli or situations can focus neural activity and connections in the brain in a manner which favors some activities and eschews others. Specifically, she is concerned that repeated and regular exposure to social networking media such as Facebook, will rewire the brain to lack attentional capability and potentially, to have reduced communicative and analytical capability. Its not that she’s wrong, but I think the story is not quite as generally dire as has been portrayed in some stories circulating about her remarks.
Behavioral neuroscientists and developmental neurobiologists have known for a while that Lady Greenfield’s concerns certainly have a basis- that repeated experience causes recurrent stimulation of neural pathways in the brain which leads to strengthening of those connections. Conversely, especially during development, neural circuitry which does not receive repeated stimulation may be pruned away due to lack of use. Once pruned, the degree to which these deactivated pathways can be rescued is not clear, and as such, the best policy for keeping the brain agile, flexible, and functional is “use it or lose it”. This clearly applies to aging, but there are also implications for development. If young children spend endless hours engaged in social media applications and online, the very nature of these experiences, it is feared, may rewire the brain to favor self-centered, detached, impersonal stimuli over interactive, other-focused activities. Exposure to these electronic environments in children may, therefore, have lasting and untoward negative effects on brain development and function and behavior.
The sky is falling. Well, not really. There is no clear evidence that these fears are based in reality at this point and moreover, if a philosophy of moderation is applied here, as in essentially every aspect of life, it is unlikely that massive, irreparable damage to the developing brain will occur. As parents, we’ve long known that its important to teach our children balance and to limit “screen time” in favor of physical activities, reading, art, and personal interactions of many types. Facebook is no different. If parents are responsible in setting limits for their kids and helping them learn the value of balance, both through modeling it themselves and by enforcing it when necessary, kids are likely to reap the benefits of these technologies and others without suffering massive brain reorganization.
The take-home message is that although Lady Greenfield’s concerns might really be a concern in a kid whose life is consumed with computers, screentime, and Facebook, normal, balanced kids who are being taught to use today and tomorrow’s technologies responsibly and in a balanced way, are likely to be just fine.












