What did Baddeley and Hitch demonstrate in the dual task experiment?
Baddeley & Hitch (1976) demonstrated the existence of the visuo-spatial sketch pad by using a dual task paradigm. This shows that when undertaking two visual tasks they compete for the limited resources of the visuo-spatial sketch pad and provides strong evidence of its existence.
What did Baddeley and Hitch change about the multistore model of memory?
Baddeley and Hitch (1974) argue that the picture of short-term memory (STM) provided by the Multi-Store Model is far too simple. Therefore, whereas short-term memory can only hold information, working memory can both retainin and process information.
What is the dual task technique?
A dual-task paradigm is a procedure in experimental neuropsychology that requires an individual to perform two tasks simultaneously, in order to compare performance with single-task conditions.
How many slaves did the WMM have?
The central executive controls the WMM and directs attention to one of three slave systems. The phonological loops deal with auditory information and contains the phonological store which holds the words you hear and the articulatory control process which allows for maintenance rehearsal of acoustic information.
Who created the WMM?
Baddeley and Hitch (1974) developed the Working Memory Model (WMM), which focuses specifically on the workings of short-term memory (STM).
What is working memory According to Baddeley?
Baddeley’s model argues that working memory is like a multi-part system, and each system is responsible for a different function. Each part is only able to processes so much and the components of this system, according to Baddeley, function more or less independently of one another.
What is dual-task performance?
Definition. Dual-task performance requires an individual to perform two tasks (i.e., Task A and Task B) simultaneously. Typically this type of performance is contrasted with single-task performance in which the individual only has to perform one task at a time (Task A or B).
What does a dual-task procedure measure?
The dual-task paradigm is an established methodology to measure performance capability under these conditions where attention must be divided between two concurrently performed tasks. …
What is the magic number 7 in psychology?
The Magic number 7 (plus or minus two) provides evidence for the capacity of short term memory. Most adults can store between 5 and 9 items in their short-term memory. This idea was put forward by Miller (1956) and he called it the magic number 7.