RELATIONAL PSYCHOPHYSICS â€“ MAJOR MESSAGES FROM HERMANN EBBINGHAUSâ€™ AND MAX WERTHEIMERâ€™S WORK
In past and modern research some main philosophical and methodological issues of human and animal perception have been discussed, with special emphasis on the relational basis of psychophysics. For example, the question has been raised if, and to which extent, there are viable bridges between traditional gestalt-oriented approaches and modern perceptual-- cognitive work. Thereby the key concept of â€œframe of referenceâ€ is illustrated here by pointing to Hermann Ebbinghausâ€™ classic geometric-optical illusions ( cf. the Ebbinghaus- Titchener illusion), on the one hand, and Max Wertheimerâ€™s gestalt theory of the transposition phenomenon, on the other.