Working memory model Flashcards
Phonological loop
Slave system controlled by the central executive
Deals with auditory information (both written and spoken)
Subdivided into phonological store (inner ear) and articulatory process (inner voice)
Preserves the order in which info arrives
Phonological store
Stores the words you hear in speech form
Articulatory process
Allows for maintenance rehearsal (repeating sounds/words in a loop to keep them in working memory while needed)
Capacity is about 2 seconds worth of what you can say
Evaluation for WMM: Clinical evidence
Patient KF had brain damage
Difficulty with sounds, could recall letters and dogits
Suggests just phonological loop damaged, other areas of memory intact
Supports existence of separate visual and acoustic store
Evidence from brain-damaged patients may not be reliable
Concerns unique cases w patients who’ve had traumatic experiences
Evaluation for WMM: Dual-task performance
Dual-task studies support separate existence of VSS
Baddeley et al. (1975) showed participants had more difficulty doing 2 visual tasks (tracking a light and describing the letter “F”) than doing both a visual and verbal task simultaneously
Increased difficulty due to both visual tasks competing for the same slave system
When doing a verbal and visual task simultaneously there is no competition
Must be separate slave system (VSS) that processes visual input