Discussion
Which two new types of sensation are proposed by Ernst Mach ?
(1) Isomorphism and time form
(2) Space form and isomorphism
(3) Space form and time form
Codes :
Answer: C
Mach proposed (3) only: space form and time form.
In The Analysis of Sensations (1886), Ernst Mach argued that we perceive a spatial pattern, such as a shape, or a temporal pattern, such as a melody, as a whole, even when its elements change: a square remains a square when it is moved, and a tune is recognised in a new key. He treated these as new kinds of sensation, 'space form' and 'time form', an idea that led to Ehrenfels' form qualities and then to Gestalt psychology.
Isomorphism is a later Gestalt idea, Wolfgang Kohler's proposal that brain processes share the structure of experience. It was not proposed by Mach, so options including it are wrong.
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