Hume states that the mind is a kind of theater where different perceptions appear, pass by, come back again and mix in different situations. Dennett introduced the concept of 'Cartesian theater' (CT). This means that we feel that our "I" is somewhere in our head. The global workspace theory (GWT) of Baars is based on the theater hypothesis. He states that conscious events happen in the theater of consciousness. He states that there is a big difference between the limited number of items available in consciousness and the many unconscious processes that are present. Baars states that consciousness is not an incident, but he also states that consciousness is not something mysterious. Dennett is in favor of the multiple drafts model. This model states that all mental activities (perceptions, emotions and thoughts) in the brain arise through parallel processes in different brain routes. These processes ensure that sensory input can be interpreted. There are various ideas today about the relationship between attention and consciousness. There are basically two opposing ideas about awareness and attention. The first idea is that if attention is paid to something, it will end up in consciousness. The other idea is that consciousness leads the attention processes as it were and that this is the greatest function of consciousness. James called these theories the theory of theories and the theory of success. Attention can be involuntary or intentionally focused and these two processes depend largely on different systems in the brain. Examples of involuntary attention are covert attention (looking at the one object, while the focus is on another object) and the 'pop-up effect' (when there is a stimulus between different stimuli that is different from the rest, then it will 'pop out' and draw the attention...