Information Processing

Information processing, the process of changing information into short-term and long-term memories that could influence an individual’s attitude and perception based on the information presented, has been a primary focus and interest for psychologists and business professionals and researchers over the years. Specifically, cognitive psychologists have proposed a number of models that attempt to explain the flow of information along a continuum beginning with sensation and ending with retrieval. As computer science became more sophisticated, cognitive psychologists borrowed a number of concepts from the field to help organize their thinking about the human mind. This entry covers the traditional information processing models from psychology while also addressing how they can be applied to corporate reputation practices and strategies.

One of the most influential models resulting from this synergy between cognitive psychology and computer science was proposed by Richard Atkinson and Richard Shiffrin. According to this classic information processing model, data flow through a series of three separate stages. These stages differ in regard to the amount of data they can hold (capacity) and the length of time the data are kept (duration). Contemporary cognitive neuroscience has confirmed the separability of these three stages by demonstrating how brain injury can produce deficits in single stages without having the same impact on the others. Contemporary psychological scientists continue to refine this classic model while retaining its basic constructs: Information can be stored for different lengths of time, and executive control processes manage the flow of information.

The information processing begins when the information enters a stage known as sensory memory. This stage is characterized by a large capacity but short duration. Information is held in this stage just long enough for the executive control mechanisms to make a simple keep or discard decision. In most instances, this is a matter of a second or less. A simple demonstration of the fading of data in sensory memory can be accomplished by waving your hand in front of your face rapidly. You should be able to “see” where your hand was at a previous time, but this is just a brief sensory echo of the original visual stimulus maintained in the sensory memory.

Sensory information held in sensory memory is transduced, or translated, into codes or representations. A representation is a mental model of a bit of information that continues to exist even when the original stimulus is no longer present. Cognitive psychologists believe that data from different sensory systems are maintained separately in sensory memory but are processed in similar ways. Some differences exist, however. Acoustic codes (sound information or echoic memories) last longer than most other types of codes, possibly due to our species’ need to hear entire words or phrases before encoding language information.

A tiny subset of the data held in sensory memory is deemed worthy of further processing, in which case it is processed in the next stage, short-term memory. Like sensory memory, short-term memory has its own set of limitations, specifically[Page 355] a small capacity and short duration. In a classic article in 1956, George Miller argued that short-term memory could hold “the magic number seven plus or minus two” bits of information. These limitations can be expanded through effortful processing. Rehearsing items by repeating them (maintenance rehearsal) can expand duration, while chunking items into categories can expand capacity (e.g., a “bit” to be remembered becomes seasons of the year instead of four separate bits of fall, winter, spring, and summer). Individuals with larger than average short-term memory capacity also tend to score high on standardized intelligence quotient tests and excel at cognitive tasks like reading.

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