Vision II Flashcards
How do different features such as orientation, shape, color, etc integrate into a single perception
due to the binding problem
define the binding problem
the binding problem is how the brain links features together so that we see unified objects in our visual world rather than free floating or mis-combined objects
what is one known error in the binding process/problem
illusory conjunctions
what are illusory conjunctions
where the brain incorrectly combines features from multiple objects (for example presented with a red A and a blue B but someone may see it as a red B and a blue A)
illusory conjunctions happen as a result of what theory
the feature integration theory
what is the feature integration theory
holds that focused attention is not required to detect the individual features of that make up a stimulus such as color, shape, and size of a location. But are required to bind the individual features together
what is the key element required for the binding problem to work
attention
what is an illness associated with the binding problem
prosopagnosia and it is characterized by an inability to piece together the individual features of a face in order to recognize someone
what is the function of the parietal lobe in the binding process and the disorders associated with it
because binding involves linking together features that appear at a particular spatial location and therefore depends on the “what pathway” which takes place in the parietal lobe
the idea that attention is needed for the binding process to take place is also applicable to what concept
top down processing
what is top down processing
it is attentional control using knowledge/experience from your mind
what is a process that occurs simultaneously with bottom up processing
bottom up processing
what is bottom up processing
bottom up processing is the use of sensory features to guide perception
what happens if there are lesions in the parietal lobe
errors in binding
while illusory conjunctions are likely to happen what is unlikely to happen
one is unlikely to report letters and colors that dont exist
