Perception of three-dimensionality.
The difference between two images on the retina when looking at a visual stimulus. This occurs since the two retinas do not have the same view of the stimulus because of the location of our eyes. Thus the left eye does not get exactly the same view as the right eye.
The blending of separate images seen by each eye into one composite image.
The process by which the nature and meaning of sensory stimuli are recognized and interpreted.
Images seen by one eye.
Investigative technique commonly used during ELECTROENCEPHALOGRAPHY in which a series of bright light flashes or visual patterns are used to elicit brain activity.
The science dealing with the correlation of the physical characteristics of a stimulus, e.g., frequency or intensity, with the response to the stimulus, in order to assess the psychologic factors involved in the relationship.
The real or apparent movement of objects through the visual field.
The turning inward of the lines of sight toward each other.
Signals for an action; that specific portion of a perceptual field or pattern of stimuli to which a subject has learned to respond.
The functional superiority and preferential use of one eye over the other. The term is usually applied to superiority in sighting (VISUAL PERCEPTION) or motor task but not difference in VISUAL ACUITY or dysfunction of one of the eyes. Ocular dominance can be modified by visual input and NEUROTROPHIC FACTORS.
Voluntary or involuntary motion of head that may be relative to or independent of body; includes animals and humans.
Voluntary or reflex-controlled movements of the eye.
The minimum amount of stimulus energy necessary to elicit a sensory response.
The sensory discrimination of a pattern shape or outline.
Mental process to visually perceive a critical number of facts (the pattern), such as characters, shapes, displays, or designs.
Differential response to different stimuli.
An illusion of vision usually affecting spatial relations.
Area of the OCCIPITAL LOBE concerned with the processing of visual information relayed via VISUAL PATHWAYS.
Awareness of oneself in relation to time, place and person.
The ability to detect sharp boundaries (stimuli) and to detect slight changes in luminance at regions without distinct contours. Psychophysical measurements of this visual function are used to evaluate visual acuity and to detect eye disease.
The positioning and accommodation of eyes that allows the image to be brought into place on the FOVEA CENTRALIS of each eye.
Set of cell bodies and nerve fibers conducting impulses from the eyes to the cerebral cortex. It includes the RETINA; OPTIC NERVE; optic tract; and geniculocalcarine tract.
The selecting and organizing of visual stimuli based on the individual's past experience.
Theoretical representations that simulate the behavior or activity of the neurological system, processes or phenomena; includes the use of mathematical equations, computers, and other electronic equipment.
The perceiving of attributes, characteristics, and behaviors of one's associates or social groups.
The process whereby an utterance is decoded into a representation in terms of linguistic units (sequences of phonetic segments which combine to form lexical and grammatical morphemes).
The detailed examination of observable activity or behavior associated with the execution or completion of a required function or unit of work.
A species of the genus MACACA inhabiting India, China, and other parts of Asia. The species is used extensively in biomedical research and adapts very well to living with humans.
Clarity or sharpness of OCULAR VISION or the ability of the eye to see fine details. Visual acuity depends on the functions of RETINA, neuronal transmission, and the interpretative ability of the brain. Normal visual acuity is expressed as 20/20 indicating that one can see at 20 feet what should normally be seen at that distance. Visual acuity can also be influenced by brightness, color, and contrast.
The process whereby auditory stimuli are selected, organized, and interpreted by the organism.
The basic cellular units of nervous tissue. Each neuron consists of a body, an axon, and dendrites. Their purpose is to receive, conduct, and transmit impulses in the NERVOUS SYSTEM.
The process by which PAIN is recognized and interpreted by the brain.
The ability to estimate periods of time lapsed or duration of time.
The awareness of the spatial properties of objects; includes physical space.
A dimension of auditory sensation varying with cycles per second of the sound stimulus.
The sensory interpretation of the dimensions of objects.
The process by which the nature and meaning of gustatory stimuli are recognized and interpreted by the brain. The four basic classes of taste perception are salty, sweet, bitter, and sour.
Mental processing of chromatic signals (COLOR VISION) from the eye by the VISUAL CORTEX where they are converted into symbolic representations. Color perception involves numerous neurons, and is influenced not only by the distribution of wavelengths from the viewed object, but also by its background color and brightness contrast at its boundary.
The process by which the nature and meaning of tactile stimuli are recognized and interpreted by the brain, such as realizing the characteristics or name of an object being touched.
Fermented juice of fresh grapes or of other fruit or plant products used as a beverage.
Use of nursing bottles for feeding. Applies to humans and animals.
Elements of limited time intervals, contributing to particular results or situations.
Hard, amorphous, brittle, inorganic, usually transparent, polymerous silicate of basic oxides, usually potassium or sodium. It is used in the form of hard sheets, vessels, tubing, fibers, ceramics, beads, etc.
A cylindrical column of tissue that lies within the vertebral canal. It is composed of WHITE MATTER and GRAY MATTER.
Using an INTERNET based personal journal which may consist of reflections, comments, and often hyperlinks.
Sound that expresses emotion through rhythm, melody, and harmony.
Platforms that provide the ability and tools to create and publish information accessed via the INTERNET. Generally these platforms have three characteristics with content user generated, high degree of interaction between creator and viewer, and easily integrated with other sites.
The visualization of internal structure using TERAHERTZ RADIATION technologies.
A computer architecture, implementable in either hardware or software, modeled after biological neural networks. Like the biological system in which the processing capability is a result of the interconnection strengths between arrays of nonlinear processing nodes, computerized neural networks, often called perceptrons or multilayer connectionist models, consist of neuron-like units. A homogeneous group of units makes up a layer. These networks are good at pattern recognition. They are adaptive, performing tasks by example, and thus are better for decision-making than are linear learning machines or cluster analysis. They do not require explicit programming.
A publication issued at stated, more or less regular, intervals.
Techniques using energy such as radio frequency, infrared light, laser light, visible light, or acoustic energy to transfer information without the use of wires, over both short and long distances.
The application of electronic, computerized control systems to mechanical devices designed to perform human functions. Formerly restricted to industry, but nowadays applied to artificial organs controlled by bionic (bioelectronic) devices, like automated insulin pumps and other prostheses.
A procedure consisting of a sequence of algebraic formulas and/or logical steps to calculate or determine a given task.