Information Technology Reference
In-Depth Information
CognitivE Load: A term describing the load
on working memory during instruction (problem
solving, thinking, reasoning).
Dorsal Stream: Also known as the parietal
stream, the “where” stream, or the “how” stream,
proposed to be involved in the guidance of actions
and recognizing where objects are in space.
Fitts' Law: A model of the human movement
in human-computer interaction and ergonomics
which predicts that the time required to rapidly
move to a target area is a function of the distance
to and the size of the target.
Localization: The ability to detect the direc-
tion of incidence of a sound.
Monaural: Literally means “having or relat-
ing to one ear”.
Multi-Modal: More than one perceptual
modality involved, usually the auditory and the
visual domain, sometimes also including haptics.
Perceptual Cycle: A model describing human
perception as a cyclic setup of schemata, percep-
tual exploration, and stimulus environment which
influence each other in a continuously updated
process, first introduced by US psychologist
Ulric Neisser.
Presence: The feeling of being present in
an artificial environment, for example a game
scenario in a jungle.
Quality of Experience: The overall accept-
ability of an application or service, as perceived
subjectively by the end-user. Quality of Experience
includes the complete end-to-end system effects
(client, terminal, network, services infrastructure
and so on). Overall acceptability may be influenced
by user expectations and context.
Salience: The state or quality of an item that
stands out relative to neighboring items.
Schema: Previous knowledge, something we
already understand or are familiar with.
Single-Cell Recording: A technique used in
brain research to observe changes in voltage or
current in a neuron, thus measuring a neuron's
activity.
Space Invaders: An arcade video game de-
signed by Tomohiro Nishikado, released in 1978,
with the aim of defeating waves of aliens with a
cannon, earning as many points as possible.
Ventral Stream: Also known as the “what”
stream, associated with object recognition and
form representation.
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