In the verbal version the participant can react immediately after the sequence is finished and can react verbally to the spoken digit sequence. Their response to the visual stimuli is also different from the verbal version. This means that participants will not be presented with auditory stimuli but with visual stimuli. In the digital version the digits are presented on a screen for 5 seconds. In the verbal version the examiner recited lists of digits in increasing length to the subject and the digits were spoken at the rate of one digit per second. The task as used in Orsini, Grossi, Capitani, Laiacona, Papagno & Vallar in 1987 is verbal and this task is digital which means that some adjustments are made. Is a digital version of the Digit Span task as described in Orsini, Grossi, Capitani, Laiacona, Papagno & Vallar in 1987 which is based on the WAIS. The task that can be downloaded on this Wiki. So the DST is among other tests a measure of intelligence. Now the DST is a subtest in the Wechsler Adult Intelligence Scale (WAIS).
By Jensen in 1998 the DST is used to indicate the Intelligence Quotient (IQ) differences between races. Later the DST is also used as subtest for intelligence testing. On average a person is not capable of retaining more than 7 pieces of information. The idea was to test how much a person can receive, process and remember for a variety of elements. The Digit Span Task (DST) was an idea of Miller in 1956.
