Pathological internet and video game misuse

Jack Dikian

November 2011

Video game and internet addiction is becoming an increasingly difficult problem. Parents will tell you that it’s affecting the everyday life and social situations of adolescents and young adults. As well, it can hinder a child's learning skills, cause real life problem solving to become more difficult, and cause a child to spend far less time with family and friends.

More and more families are flooding psychiatrists with pleas for help for children hooked on Video games and the Internet.

The condition, now known as "pathological internet misuse" is growing so rapidly among adolescents and young adults that it could soon be formally recognised as a mental health disorder.

Video game addiction is excessive or compulsive use of internet, computer and video games that interferes with daily life. Instances have been reported in which users play compulsively, isolating themselves from family and friends or from other forms of social contact, and focus almost entirely on in-game achievements rather than other life events.

There is no formal diagnosis of video game addiction in current medical or psychological literature, albeit, Inclusion of it as a psychological disorder has been proposed and rejected for the next version of the Diagnostic and Statistical Manual of Mental Disorders (DSM).

In Australia, a website would be launched this week to help carers, families and counsellors address the growing and complex problem of internet and gaming (video) addiction. The Network for Internet Investigation and Research in Australia will be run by specialists with a "common passion in assessing, treating, researching and educating the public and professionals" about internet addictions.

Using Diffusion Tensor Imaging to examine structural brain aberrations

Jack Dikian

August 2011

Flipping through a pile of brain scans, a neurologist or psychiatrist would be hard pressed to pick out the one that belonged to a schizophrenic. Although schizophrenics suffer from profound mental problems -- hallucinated conversations and imagined conspiracies are the best known -- their brains look more or less normal.

Whilst earlier Magnetic Resonance Imaging (MRI) hint of slight brain structure anomalies, it is nevertheless difficult to explain how these lead to the symptoms observed in schizophrenia and other psychiatric disorders.

A variation of MRI called Diffusion Tensor Imaging (DTI) is now allowing neurologists to study the connections between different brain areas, and seeing minute structural aberrations.

Using Diffusion Tensor Imaging (see image), for example, memory and cognitive problems associated with schizophrenia are (in some cases) seen to be linked to flaws in nerve fibers near the hippocampus, a brain area crucial for learning and memory. If such diseases are rooted in subtle "wiring" problems involving axons, DTI can be used to look at complex network of nerve fibers connecting different brain areas.

DTI tracks the movement of water molecules in the brain. In most brain tissue, water molecules diffuse in all different directions. But they tend to diffuse along the length of axons, whose coating of white, fatty myelin holds them in. Pictures can be created of axons by analyzing the direction of water diffusion.

Neuroscientists are using DTI to study a host of disorders, including addiction, epilepsy, traumatic brain injury, and various neurodegenerative diseases. For instance, DTI studies have shown that chronic alcoholism degrades the white-matter connections in the brain, which may explain the cognitive problems seen in heavy drinkers.