I have my doubts about that study. Or rather, I doubt the headline. Excessive internet use can cause a dependency in some people. Just like any other activity that activates the neurological reward system can be addictive (gambling, eating, sex, even working). I suppose that's what the study was getting at, hence the comparison to cocaine use.
Personally, I find the internet mentally stimulating and very educating. It forces me to constantly learn new things, which improves and preserves my neural plasticity. I've nearly perfected my English thanks to MMOs and social online spaces like forums. Which perfectly fits the topic, because being bilingual has been found to improve one's cognitive skills. It can even protect against neurological conditions like Alzheimer's and helps delay the onset of dementia:
http://www.guardian.co.uk/science/2011/ ... ltitasking
Another method to prevent cognitive deterioration is nicotine consumption:
http://www.sfn.org/index.aspx?pagename= ... gs_smoking
Quote:
Nicotine—in cigarettes and other forms—appears to help normalize some of the cognitive and sensory deficits that people with this disorder (schizophrenia) experience.
Nicotine is not only beneficial for schizophrenia, it also seems to hold Alzheimer's at bay and can even reverse the cognitive impairment:
http://www.sciencedaily.com/releases/20 ... 095331.htmQuote:
"By stimulating the Alpha7 receptor with nicotine, we were able to recover normal brain function," explains Lee.
It appears that many smokers are in fact self-medicating. Of course I wouldn't recommend to anybody to start smoking, but there are safer (and usually also cheaper) ways to administer nicotine, such as so-called electronic cigarettes and nicotine nasal sprays. The side effects are increased blood pressure (and cardiac problems if the dosis is too high), and of course it is highly addictive. But if somebody here suffers from cognitive impairment due to schizophrenia, nicotine addiction might be a small price to pay for being able to think straight and focus.