Phenomenal transparency is the phenomenon of perceiving one surface behind another. Numerous studies on this phenomenon have been conducted  following the systematic description by Fuchs(1923) : these have focused on the conditions for its occurrence or its properties.  Several recent studies have emphasized that phenomenal transparency is a clue to understanding the manner in which the visual system converts a two-dimensional retinal image into three dimensional structures. However, it was originally investigated within the framework of perceptual organization and was shown to have certain phenomenal properties in addition to "seeing through surfaces". In this paper, then,  phenomenal transparency is reconsidered from the view point of the theory of perceptual organization. By particularly focusing on the brightness/lightness change that is perceived with phenomenal transparency, it will be suggested that it can be discussed with relation to certain other phenomena (e.g.. brightness/lightnessinduction).  This is examined by reviewing previous studies, as well as the study conducted by the author.

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