More Background/Foreground: No Background in Dreams: “Perceptual experience has a sensory foreground-background structure, in which selective attention determines the foreground while the background is pre-attentive or diffusely attended. Neither dreaming nor visual imagination seems to have this kind of foreground-background structure; rather, selective attention directly determines the sensory content of the dream image or visualized object, while the background is due to cognitive supposition. For example, while having a flying dream I image whatever I attend to—for example the trees directly below me. To say that I don’t notice the mountain ridge is not to say that it is there as part of an imaged but unnoticed sensory background; rather, it is to say that it is absent because I am not generating any sensory imagery of mountains. ” Response to Commentators on Waking, Dreaming, Being Evan Thompson Department of Philosophy, University of British Columbia https://evanthompsondotme.files.wordpress.com/2012/11/thompson.pdf

More Background/Foreground: No Background in Dreams:
 
“Perceptual experience has a sensory foreground-background structure, in which selective attention determines the foreground while the background is pre-attentive or diffusely attended.
 
Neither dreaming nor visual imagination seems to have this kind of foreground-background structure; rather, selective attention directly determines the sensory content of the dream image or visualized object, while the background is due to cognitive supposition.
 
For example, while having a flying dream I image whatever I attend to—for example the trees directly below me. To say that I don’t notice the mountain ridge is not to say that it is there as part of an imaged but unnoticed sensory background; rather, it is to say that it is absent because I am not generating any sensory imagery of mountains. ”
 
Response to Commentators on Waking, Dreaming, Being
Evan Thompson
Department of Philosophy, University of British Columbia
https://evanthompsondotme.files.wordpress.com/2012/11/thompson.pdf

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