
Young adults who are heavy users of the Internet may also exhibit
signs of addiction, scientists, including Indian-origin researchers,
have found.
Researchers at Missouri University of Science and
Technology, Duke University Medical Center and the Duke Institute of
Brain Sciences compared Internet usage with measures of addiction.
The
research, presented on December 18 at the Institute of Electrical and
Electronics Engineers (IEEE) International Conference on Advanced
Networks and Telecommunications Systems in Chennai, India, tracked the
Internet usage of 69 college students over two months.
It revealed a correlation between certain types of Internet usage and addictive behaviours.
"The
findings provide significant new insights into the association between
Internet use and addictive behaviour," said Dr Sriram Chellappan, an
assistant professor of computer science at Missouri S&T and the lead
researcher of the study.
At the beginning of the study, the 69
students completed a 20-question survey called the Internet-Related
Problem Scale (IRPS). The IRPS measures the level of problem a person is
having due to Internet usage, on a scale of 0 to 200.
This
scale was developed to identify characteristics of addiction, such as
introversion, withdrawal, craving, tolerance and negative life
consequences.
The researchers simultaneously tracked the campus Internet usage of participating students over two months.
Chellappan,
working with Dr P Murali Doraiswamy, a professor of psychiatry and
behavioural sciences at Duke University Medical Center, found that the
range of IRPS scores among participating students over the two-month
period ranged from 30 to 134 on the 200-point scale.
The average
score was 75. Participants' total Internet usage ranged from 140
megabytes to 51 gigabytes, with an average of 7 gigabytes.
The
subjects' Internet usage was divided into several categories, including
gaming, chatting, file downloading, email, browsing and social
networking (Facebook and Twitter).
The total IRPS scores
exhibited the highest correlations with gaming, chatting and browsing,
and the lowest with email and social networking.
The researchers
also observed that specific symptoms measured by the scale correlated
with specific categories of Internet usage. They found that introversion
was closely tied to gaming and chatting; craving to gaming, chatting
and file downloading; and loss of control to gaming.
"About 5 to
10 per cent of all Internet users appear to show web dependency, and
brain imaging studies show that compulsive Internet use may induce
changes in some brain reward pathways that are similar to that seen in
drug addiction," said Doraiswamy.
The team cautioned that the
current study is exploratory and does not establish a cause and effect
relationship between Internet usage and addictive behaviour.
