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Iconic memory is the visual sensory memory register pertaining to the visual domain and a fast-decaying store of visual information. It is a component of the visual memory system which also includes visual short-term memory [ 1 ] (VSTM) and long-term memory (LTM).
Iconic memory, for example, holds visual information for approximately 250 milliseconds. [7] The SM is made up of spatial or categorical stores of different kinds of information, each subject to different rates of information processing and decay.
Research in Cognitive Psychology, Iconic Memory George Sperling (born 1934) [ 1 ] is an American cognitive psychologist , researcher, and educator. Sperling documented the existence of iconic memory (one of the sensory memory subtypes).
Iconic memory is a fast decaying store of visual information, a type of sensory memory that briefly stores an image that has been perceived for a small duration. Echoic memory is a fast decaying store of auditory information, also a sensory memory that briefly stores sounds that have been perceived for short durations.
Iconic memory is the visual part of the sensory memory system. Iconic memory is responsible for visual priming , because it works very quickly and unconsciously . Iconic memory decays very quickly, but contains a very vivid image of the surrounding stimuli.
The introduction of stimuli which were hard to verbalize, and unlikely to be held in long-term memory, revolutionized the study of VSTM in the early 1970s. [6] [7] [8] The basic experimental technique used required observers to indicate whether two matrices, [7] [8] or figures, [6] separated by a short temporal interval, were the same.
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As with iconic memory, echoic memory only holds superficial aspects of sound (e.g. pitch, tempo, or rhythm) and it has a nearly limitless capacity. [16] Echoic memory is generally cited as having a duration of between 1.5 and 5 seconds depending on context [16] [17] [18] but has been shown to last up to 20 seconds in the absence of competing ...