are modulated along the same axes of color space, with this selectivity being slightly more pronounced in the tilt-illusion ([@B22]).

The chromatic characteristics and the hierarchical position (within the visual pathway) of mechanisms involved in the tilt illusion were investigated in a study presenting the target to one eye and the surround to the other, with the two being either of the same or of different colors: it was found that, whereas the binocular mechanism is largely color-invariant, the monocular mechanism is purely chromatic, implying the existence of coupled color-orientation neurons in early visual cortex ([@B34]). A two-stage model was suggested for the illusion, in which binocular visual mechanisms code for form in a manner that is largely insensitive to chromatic signature, whereas color and orientation processing interact atIn his mission to bring about the reconciliation of all the world’s major religions, Baha’u’llah suffered enormously at the hands of the Islamic authorities of his time. Despite exile, torture and forty years of imprisonment, he never wavered in his quest for unity.

In doing so he broke with Muslim tradition and with the common Muslim understanding of the testimony of the Qur’an itself. Notwithstanding this radical stance, he quoted from the Qur’an and the Islamic hadiths in the very same documents that featured passages from the New Testament, and often side by side. He cited many verses from the Gospels, pointing out that they prophesied the appearance of the prophet Muhammad, thereby affirming that Muhammad was the return of Jesus and the coming of the Son of man