The stimulation of sense organs. | ||
The selection, organization, and interpretation of sensory input. | ||
The study of how physical stimuli are translated into psychological experience. | ||
For a specific type of sensory input is the minimum stimulus intensity that an organism can detect. | ||
The smallest difference in stimulus intensity that a specific sense can detect. | ||
States that the size of a just noticeable difference is a constant proportion of the size of the initial stimulus. | ||
Proposes that the detection of stimuli involves decision processes as well as sensory processes, which are both influenced by a variety of factors besides stimulus intensity. | ||
The registration of sensory input without conscious awareness. | ||
A gradual decline in sensitivity to prolonged stimulation. | ||
The transparent eye structure that focuses the light rays falling on the retina. | ||
Closes objects are seen clearly but distant objects appear blurry. | ||
Distant objects are seen clearly but close objects appear blurry. | ||
The opening in the center of the iris that permits light to pass into the rear chamber of the eye. | ||
The neural tissue lining the inside back surface of the eye; it absorbs light , processes images, and sends visual information to the brain. | ||
A hole in the retina where the optic nerve fibers exit the eye. | ||
Specializes visual receptors that play a key role in daylight vision and colour vision. | ||
A tiny spot in the center of the retina that contains only cones; visual acuilty is greatest at this spot. | ||
Specialized visual receptors that play a key role in night vision and peripheral vision. | ||
The process in which the eyes become more sensitive to light in low illumination. | ||
The process whereby the eyes become less sensitive to light in high illumination. | ||
The retinal area that, when stimulated, affects the firing of that cell. | ||
Occurs when neural activity in a cell opposes activity in surrounding cells. | ||
The point at which the optic nerve from the inside half of each eye cross over and project to the opposite half of the brain. | ||
Involves simultaneously extracting different kinds of information from the same input. | ||
Neurons that respond selectively to very specific features of more complex stimuli. | ||
Removing some wavelengths of light, leaving less light than was originally there. | ||
That the human eye has three types of receptors with differing sensitives to different light wavelengths. | ||
A variety of deficiencies in the ability to to distinguish among colours. | ||
Pairs of colours that produce gray tones when mixed together. | ||
superimposing lights, putting more light in the mixture than exists in any one light by itself. | ||
Colour perception depends on receptors that make antagonistic responses to three pairs of colours. | ||
The failure to see visible objects or events because one's attention is focused elsewhere. |
Sensation and Perception (A)
Primary tabs
Need Help?
We hope your visit has been a productive one. If you're having any problems, or would like to give some feedback, we'd love to hear from you.
For general help, questions, and suggestions, try our dedicated support forums.
If you need to contact the Course-Notes.Org web experience team, please use our contact form.
Need Notes?
While we strive to provide the most comprehensive notes for as many high school textbooks as possible, there are certainly going to be some that we miss. Drop us a note and let us know which textbooks you need. Be sure to include which edition of the textbook you are using! If we see enough demand, we'll do whatever we can to get those notes up on the site for you!