After reading a lot of material on this I decided to post a topic here. Since what I'm going to write, is not only assumptions but proven facts by scientists, psychologists, neurologists, I think it's important to know it.
Harmful effects of TV and computers are especially valid in early age when children are still developing.
Important and useful articles to read :
You can just write ,,TV effect/s on brain,, and you'll see many articles. Consider the information valid for computer screens as well.
This is excerpt from one the first article :
The human brain works at 4 basic frequencies. These are Beta, Alpha, Theta and Delta.
Beta waves are produced when one is thinking and using one’s higher faculties and Delta is associated with sleep and/or deep trance like states. The radiant light and flicker rates of TV cause the brain to drop down to a level of activity somewhere between Alpha and Theta – essentially a sleepy dreamlike state of mind where the higher critical functions are turned off. Even if you’re reading text on a television screen the brain registers low levels of Alpha wave activity. Theta brainwaves engage inner and intuitive subconscious. You will find theta in places where you hold memories, sensations and emotions Any information therefore imbibed from the TV by-passes our logical, critically thinking sieve and goes straight into those sub areas of the mind associated with more emotive response. TV then appeals more to the emotions than the mind and of course how many of us engage in lively informed debate anymore? Very few. The more common reaction to big questions is usually an emotive response followed by a quick change in subject. TV viewing is a somatic experience which means it is “of the body, not of the mind”. I’m reminded of Huxley’s book, ”Brave New World” where the drug of choice was called soma and enabled people to escape un-palatable intellectual life problems.
The above information is also valid for computer screens, no matter if, CRT, LCD, TFT etc, there is a radiant light.
Beta waves are usually associated with the activities of the left brain hemisphere, sorting information, filtering, critical thinking processes, some types of memory, etc. Basically on the second minute we are in front of a computer screen or TV, our brain has reduced beta waves and increased alpha waves (also called , hypnotic waves) , thus our brain has reduced, numbed left hemisphere functions. This allows for the information to be absorbed in a very different way than we normally would absorb it. It goes straight in your brain without much filtering, influences your subconscious, emotions and reprograms your brain. As far as I read, the time required for the Beta Waves to return to normal levels is around 24 hours, without any television or computer.
So, if a child is watching porn, do you see the multiple damage? Porn + Radiant Light and flicker that affects many critical brain functions.
Thus porn is few times more effective and damaging on the brain than it should be and it reprograms it quite easily, it gets into our subconscious mind, namely because of this. This also directly effects the behavior of children and their forming personality. Imagine what the brain of a kid who started with porn at 10 and continued until 20 will look like?
In adults the effect may be not so damaging, but it's still there and harms the brain even when all the functions are developed already, it just numbs them.