Lesson 9 - Gestalt Flashcards
Briefly explain the priniciple of Gestalt
We cannot reduce consciousness to its elements (Wundtian) without losing the meaning of consciousness experience.
• Consciousness = an experience as a whole (gestalt)
Gestalt focused on a molar approach; what does it mean?
Gestalt = focused on a molar approach
• Molar = behaviour as a whole
Molecular = behaviourist’s perspective (stimulus-response contingency - Gestalt was against this)
Describe some of the contributions of Kant, Brentano, Külpe and Stumpf on Gestalt
Kant: active process of the mind to build a coherent experience = gestalt
Brentano: Act psych suggests that consciousness cannot be reduced to its elements
Külpe: imageless thought
Stumpf: when sensory elements are combined they form a new pattern
What is the link between physics and Gestalt?
Physics: acceptance of fields of force (magnets and iron shards) - the fields are wholes and not only individual elements
Gestalt: will use this theory of fields of force to explain the mind
Describe the work of Ernst Mach
All knowledge is derived from sensation - understood in terms of phenomenological experiences
Space form / time form are independent of the elements that compose them (a circle is still a circle no matter what size it is)
Describe the work of Christian von Ehrenfels
Elaborated on Mach’s time and space forms
Form: something that emerges from the elements of sensation (ex: many notes make a melody)
What did Max Wertheimer realize with the Stroboscope?
That spinning around a series of static images gives the illusion of movement - therefore sensation and perception are quite different
What is a tachistoscope? What is it used for?
Lights placed close together that flash successively
Depending on the interval at which the lights flash, it might be perceived as 2 lights flashing on and offf, two lights flashing simultaneously, or one light moving from one position to another.
This phenomenon is called the Phi Phenomenon (illusion that stationnary lights move)
What was the hypothesis for explaining the Phi Phenomenon? What was finally found? Why is that so crucial?
Hypothesis: eye movement gave rise to kinesthetic information
Test: 3 lights in a triangle (looked as if light poured into the others)
Explanation: Brain must be adding something that was not there (Formal beginning of the school of Gestalt
What is the main contribution of Kurt Koffka?
Coined the term “perception”
Systematized Gestalt into a coherent body of theories, he is more regarded for his writing than his research
Was moslty interested in cognitive processes (thinking, learning, etc), and developmental psych
What did Wolfgang Köhler contribute to the concept of percpetion?
Established that the active brain is like the magnet with its magnetic field; it is a less atomistic perspective and it emulates the hard sciences
Perception is NOT built up from sensations, but a result of perceptual organization from our brain (just like the magnet organizes the iron shards in a shape)
What is psychophysical isomorphism? (Köhler)
The correspondence between consicous experience and the underlying brain activity
We are experiencing what our brain is interpreting (these sensation being psychophysical isomoprhs)
Describe what is a top-down analysis
A mind-driven analysis (from head to stimuli)
Describe the law of Prägnanz (Köhler)
Mental events (what the brain force field creates) are organized according to this law - AKA in the simplest way possible (we want to use as little effort as possible)
Describe how Gestaltists view perception
They are in favour of perceptual constancy, which suggests that we tend to respond to objects as being the same even when we experience them in different circumstances, since it uses less cognitive resources
Ex: we can recognize a door whether it’s closed or open