Context Flashcards
Evidence for Synaesthesia is largely ________
Self-report
“Mystery spot” illusions are caused by ______ ______.
Anomalous Context
Illusions are caused by ______ _______.
Sensory Heuristics
Contrast Illusions are caused by _______ _______.
Local Processing
Bistable percepts and impossible figures are caused by _______ _______.
Global integration
When perceiving objects, we have to….
Separate objects (figure) from the non-focused background (ground)
Parsing heuristics
Can help us separate objects of interest from the background.
Ebinghaus illusion
A geometric illusion where difficulty matching a circle not surrounded by anything in size to one surrounded by either smaller or larger circles.
Muller-Lyer illusion
A geometric illusion where arrows provide context and make one line seem longer although the lines are the same length.
-> may relate to seeing corners in real life
Poggendorff illusion
A geometric illusion where two parallel lines make an intersecting diagonal line look like it doesn’t line up into one consistent line.
Hermann Grid
A geometric illusion where white dots appear black because they are surrounded by black. Relates to the organization of our receptive field.
->but may also relate to the straight lines, as the illusion lessons when they are wavy.
Geometric illusions are induced by …
The surrounding context
Contrast illusions are induced by…
interactions between the centre-surround networks
Bistable Percepts
illusions explained by competitive- cooperative networks and the coordination of local and global interpretations.
-Common to figure/ground (and similar) ambiguous interpretations
An example of a bistable percept
Necker Cube: Can see a cube with its front base at the lower or upper left. When your connections fatigue, competitive networks cause the orientation to switch.
