The effect of spatial attention on invisible stimuli

Attention, Perception & Psychophysics
Kilho ShinSang Chul Chong


The influence of selective attention on visual processing is widespread. Recent studies have demonstrated that spatial attention can affect processing of invisible stimuli. However, it has been suggested that this effect is limited to low-level features, such as line orientations. The present experiments investigated whether spatial attention can influence both low-level (contrast threshold) and high-level (gender discrimination) adaptation, using the same method of attentional modulation for both types of stimuli. We found that spatial attention was able to increase the amount of adaptation to low- as well as to high-level invisible stimuli. These results suggest that attention can influence perceptual processes independent of visual awareness.


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Related Concepts

Figural Aftereffect
Discrimination Learning
Pattern Recognition, Visual
Visual Fields
Sensory Thresholds
Contrast Sensitivity

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