The Basics
This theory describes all of the ways that a participant can respond to a signal that is present or absent.
What is Signal Detection Theory?
This is the dark, circular opening at the center of the eye.
pupil.
Rods are specialized to help you see during this time of the day.
night/night vision.
This lobe of the brain is especially important for vision.
What is the Occipital lobe?
This is the main object that is to be recognized in a figure-ground image.
Figure
This is the science of defining quantitative relationships between physical and psychological events.
Psychophysics
This is the light-sensitive membrane at the back of the eye that contains rods and cones
retina.
These photoreceptors do not contribute to color vision
rods
This pathway is considered the where pathway and is important for spatial awareness & body position.
What is the dorsal stream?
When one object covers up another object, that is known as.....?
occlusion.
The psychophysical method in which stimuli of varying intensities are presented in ascending and descending orders in discrete steps is called the method of…
What is the method of limits?
The right visual field projects to this half of each eye.
What is the left?
Rods are most highly concentrated in this area of the retina
Periphery
Half of the axons from each eye crossover at this point.
What is the optic chiasm?
This Gestalt grouping principle suggests that elements that look alike tend to be seen as grouped together
Similarity
A psychophysical technique where a researcher presents a set of different stimulus intensities to a participant in a random order, and asks them to judge whether they perceive the stimulus or not, allowing for a precise measurements.
What is the method of constant stimuli?
This is the name of the area where the optic nerve leaves the eye.
What is the blindspot?
Cones are most highly concentrated in this area of the retina
fovea
What causes our blind spot. (What is missing!?)
What are photoreceptors?
This Gestalt grouping principle suggests that elements that are close to each tend to be seen as grouped together
Proximity
This method for testing subjects' perception in stimulus detection and difference detection requires the observer to alter the strength of a stimulus until it matches some criterion
Method of adjustment
This type of mapping is an orderly mapping of the world in the LGN (thalamus) and visual cortex.
retinotopic mapping
Each cone is connected to 1 of these cells, creating high spatial resolution/acuity.
What is retinal ganglion cells?
This is the pathway to the brain starting from the eye.
retina-optic nerve- optic chiasm - optic tract - LGN - optic radiations- primary visual cortex.
The Gestalt principle that suggests elements moving in the same direction are perceived as part of a single group.
What is Gestalt's Law of Common Fate?