Blake et al. showed that a high contrast grating shown to one eye produced a similar amount of adaptation, whether or not the grating was suppressed from awareness by an orthogonal grating presented to the other eye. When they replaced the high contrast adapting grating with a low contrast grating, they found:

Question

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When the high contrast adapting grating was replaced with a low contrast grating, Blake et al. found less adaptation in the suppressed condition, indicating that the effectiveness of the adaptation process was reduced when the stimulus was less perceptually prominent or suppressed from awareness.

Blake Et Al