Amazing World Of Vision Flashcards
In vision, how many cones are present?
7 million cones
Cones are responsible for color vision and function best in bright light.
What type of vision do cones support?
Cones help to support daylight vision
Cones are sensitive to bright light and enable color perception.
Where are cones located?
In the central fovea
The fovea is the area of the retina responsible for sharp central vision.
In vision, how many rods are present?
125 million
Rods are more numerous than cones and are highly sensitive to light.
What type of vision do rods support?
Rods help to support low light vision
Rods are responsible for vision in dim light and do not detect color.
Where are rods located?
Less centrally on fovea
Rods are distributed throughout the peripheral regions of the retina.
How do eyes perceive shapes?
Eyes perceive in 2D
The retina captures images in two dimensions.
How do we see in 3D?
The brain interprets in 3D
The brain combines signals from both eyes to create depth perception.
What is the phenomena of visual shortcuts?
The phenomena of visual shortcuts demonstrates how the mind fills in what the eyes do not see to make sense of the image based on past experience
This is a cognitive process where the brain uses context and familiarity to interpret incomplete visual information.
What image can be used to show the phenomena of visual shortcuts?
The Kanizsa triangle and rectangle
These images illustrate how the brain perceives shapes that are not explicitly drawn.
How do shapes and colors affect designs?
They increase attention by making part of an image stand out from the surrounding image(s)
Effective design utilizes contrast to guide viewer focus.
What does the Franz Muller-Lyer Illusion show?
Optical illusion of two arrows of same length, one points inward, the other points outward
This illusion highlights how context can alter perception.
What does the Franz Muller-Lyer Illusion illustrate?
It demonstrates how our brain can misinterpret information provided by the eyes
The brain’s interpretation can be influenced by the surrounding visual context.
What is the Fusiform Face Area (FFA)?
Facial recognition area of the brain
The FFA is critical for identifying human faces.
What age is the Fusiform Face Area (FFA) in use?
Present at birth
This area is innate and develops as the infant is exposed to faces.
What is the most effective way to grab attention or elicit an emotion?
Show an image of a face (facing forward, not profile), large enough to be seen clearly, and showing the emotion wanting to be conveyed
Faces are universally recognized and can evoke strong emotional responses.
What is the most effective way to direct view toward a product?
Show an image of a face on the page looking at a product which will draw eyes to the product
This technique leverages human instinct to follow gaze direction.
What is the theory of vision tracks?
Theory that the retina creates tracks from patterns and sends the info to the brain’s visual cortex where the info is processed in different areas set aside for specific tracks. It is eventually consolidated down to two Main Vision Tracks.
This theory explains how visual information is organized and processed in the brain.
How many vision tracks have been identified?
12
These tracks are responsible for processing different visual features.
What are the various vision tracks?
Edges, vertical lines, horizontal lines, shadows, movement, color, location, and several differing specific angles
Each track specializes in processing specific visual information.
Which two vision tracks are the prominent tracks?
Motion and location (relative to viewer)
These tracks are crucial for navigating and interacting with the environment.
Where does the process occur?
Within the brains’ visual cortex
The visual cortex is the primary area for processing visual information.
What is small bit vision theory?
Theory that some neurons process only two features simultaneously
This theory addresses how visual information is processed in a limited capacity.
What are the two features processed in small bit vision theory?
Color and Orientation
This reflects the limitations of visual processing at the neural level.
How many design elements should be changed to grab attention?
Differentiate only one element out of many
This strategy reduces cognitive overload and focuses viewer attention.
