Eating too much and exercising too little will result in poor health. That is not what the study is about. What do you think most people do while they are eating, marathons or something? The study is about eating while sitting at a table compared to eating while sitting at a table playing solitaire. They only measure the quantity of food eaten and the satiation afterwards and do not directly measure weight gain.
How full you feel is almost independent of how full your stomach is. Another experiment had two groups eat soup until full. Subjects in one group each had a self filling bowl so no matter how much they ate the bowl remained full. Subjects in the other group got as many normal non-refilling bowls as desired. Those in the group with self filling bowls ate about twice as much [http://scienceblogs.com/cognitivedaily/2009/06/self-refilling_bowls_an_idea_w.php], and did not feel any more full than the control group. So this study gets about the same results, just in a situation more likely to happen in real life.
You eat with your eyes and not your stomach, so being distracted while eating makes you feel less full. Which could indirectly lead to eating more. I am sure similar results could come from watching TV or any other engaging activity, so you don't need to defend gaming.
How full you feel is almost independent of how full your stomach is. Another experiment had two groups eat soup until full. Subjects in one group each had a self filling bowl so no matter how much they ate the bowl remained full. Subjects in the other group got as many normal non-refilling bowls as desired. Those in the group with self filling bowls ate about twice as much [http://scienceblogs.com/cognitivedaily/2009/06/self-refilling_bowls_an_idea_w.php], and did not feel any more full than the control group. So this study gets about the same results, just in a situation more likely to happen in real life.
You eat with your eyes and not your stomach, so being distracted while eating makes you feel less full. Which could indirectly lead to eating more. I am sure similar results could come from watching TV or any other engaging activity, so you don't need to defend gaming.