fallibility of visual perception Flashcards
fallibility definition
the quality of being prone to error or experiencing difficulties in judgment
perception distortions definition
errors in judgment or interpretation of sensory stimuli
visual illusions definition
the perception of a visual stimulus that conflicts with how it is in physical reality
Muller- Lyer illusion
when measured the two lines are exactly the same but the arrow with heads pointing outwards is perceived as longer
this can be explained through the carpentered world hypothesis or culture and environment.
muller- lyer illusion- carpentered world hypothesis
a psychological explanation as to why we perceive the center lines of the muller illusion to be different sizes
- when we see the plain two-dimensional lines of the illusion we automatically apply them to real three-dimensional objects in our world, such as corners of rooms or buildings.
muller- lyer illusion - cultural and environmental factors
the many characteristics of a group of people including their attitudes, behaviors, customs, and values that are transmitted from one generation to the next.
- those who have grown up in cultures with non-rectangular buildings are less likely to be tricked by this illusion.
Ames room illusion
a specially constructed trapezoid- shape room, designed to create the visual illusion that it is rectangular, for an observer viewing the room through a peephole ( monocular )
- size constancy fails because a person walking from one side of the room to the other appears to change size
- shape constancy is maintained as the room appears to be a normal rectangular shape.
- reinforced by top-down processing
visual agnosia definiton
a disorder involving the loss or impairment to recognize familiar stimuli through the use of one or more senses, despite the senses functioning normally otherwise.
perceptual distortions definition
when an individual perception interpretation of a stimulus varies from how it is commonly perceived ( synaesthesia, spatial neglect )
synaesthesia definition
a perceptual phenomenon in which certain sensation are perceived using another perceptual system
characteristics of synaesthesia
- automatic and cannot be controlled
- generally experienced as a one-way process
- consistent across time
- unique to the individual
- relatively commen
types of synaesthesia
- ordinary linguistic personification
- chromesthesia
- grapheme
- lexical- gustatory synaesthesia
types of synaesthesia- ordinary linguistic personification
when an individual views an ordered sequence ( days, numbers ) as having personalities
types of synaesthesia- chromesthesia
when an individual simultaneously senses sounds and colors. for example lighter colours have higher sounds
types of synaesthesia - grapheme
colour synaesthesia- when an individual perceives graphemes ( letters and numbers ) as being different colors
