The lecturer looks at the statistics and contends that effects of videogames are overrated. This opposes the opinion of the reading that videogames bring harmful effects to children.
First of all, looking at the figure, lecturer points out that on the average, people only play videogames for 13 hours. Comparatively, people spend 25 hours watching TV. So it is hard to say from the figure that videogames are addictive. If videogames are considered addictive it is even right to say that reading, playing sports or other various activities people enjoy are addictive as well. This reasoning and statistics refute the claim made in reading that videogames are addictive.
Secondly, the lecturer argues the symptoms of withdrawl and encouragement to violence are not solely caused by videogames. As mentioned earlier, the lecturer argues that other activities consume more time that videogames and thus all the symptoms are unrelated. Especially, violence is unrelated because it could arise from other sources than videogames. And the data show that crime rate did not suddenly increase after vidoegames became popular. These facts contradicts reading's claim that videogames harmfully affect people psychologically and physically as well as encourage violence.
Lastly, due to complexity of vidoegames, the lecturer says that intelligence could be increased by playing videogames. Since one has to use the controller and constantly try to unlock or finish the mission, the interaction stimulates the brain. This also helps wiht improvement in reaction time as well as problem solving skills. These facts completely rebuts the argument the reading made that videogames are educationally worthless and results in players becoming stupid.