Cortical networks involved in visual awareness independent of visual attention

Cortical networks involved in visual awareness independent of visual attention.

It is now well established that visual attention, as measured with standard spatial attention tasks, and visual awareness, as measured by report, can be dissociated. It is possible to attend to a stimulus with no reported awareness of the stimulus. We used a behavioral paradigm in which people were aware of a stimulus in one condition and unaware of it in another condition, but the stimulus dre...

Perceptual experience modulates cortical circuits involved in visual awareness.

Successful interactions with the environment entail interpreting ambiguous sensory information. To address this challenge it has been suggested that the brain optimizes performance through experience. Here we used functional magnetic resonance imaging (fMRI) to investigate whether perceptual experience modulates the cortical circuits involved in visual awareness. Using ambiguous visual stimuli ...

Visual attention: Spotlights, highlights and visual awareness

The phenomenon of visual attention has long fascinated scientists interested in higher functions of the brain. Introspection suggests that attention exerts a powerful influence on the flow of visual information within our brains: everyone is familiar with the experience of attending so intently to a particular object in the visual world that he/she is oblivious to other salient stimuli present ...

3 . Visual Attention and Visual Awareness

Coverage Quality in Visual Sensor Networks