Otto Heller with his stimulus series of apples
150 x 100 x 2.5 cm (h x w x d)

Otto Heller was intensively involved in frame of reference research and investigated it with various stimulus series. These included weights, cigarette of different length and also apples of different size.

More from The Center for the History of Psychology presents:

Perceived virtuality
100 x 900 x 2.5 cm (h x w x d)
The Center for the History of Psychology presents:
Card changer according to Narziß Ach
30 x 15 x 20 cm (h x w x d)
The Center for the History of Psychology presents:
Main entrance to the theological seminary in Würzburg
150 x 100 x 2.5 cm (h x w x d)
The Center for the History of Psychology presents:
Virtualizer
200 x 100 x 2.5 cm (h x w x d)
The Center for the History of Psychology presents:
Spider phobia
100 x 150 x 2.5 cm (h x w x d)
The Center for the History of Psychology presents: