Baddeley and Hitch felt than the STM was not just one store but many diferent stores. There inspiration for the model was the dual task performance effect
1 of 12
Central executive
Directs attention to the slave systems, very limited capacity, data arrives from the sensory or LTM memory (during retrieval)
2 of 12
Phonological loop
Limited capacity, deals with auditory information. Badderely divides this into the phonological store which holds words you hear (inner ear) and the articulatorprocess which is uy heard or seen and silently repeated (inner voice).
3 of 12
Visuo-spatial sketchpad
Used when you have a spatiel task and deals with visual information. LOgie divided into the visual cache which stores info about visual items and the inner scribe which stores spatiel information
4 of 12
Episodic buffer
Added later because the model needed a general store. Has no storage capacity, holds visual and auditory information and it itnegrates info from the CE, the PL and the VSS. It also maintains a sense of time sequencing and sends info to the LTM
5 of 12
Strength of the model- Dual task performance- Badderley and Hitch
Suports the existence of the CE. Task 1 occupied the CE, task 2 occupied either the articulatory loop or involved the CE and the articualtory loop. Task 1 was slower whe task 2 involved both the CE and AL, demonstrates the dual task performance
6 of 12
Strength of the model- Evidence from KF
Shallice and Warrington studied KF whose STM forgetting of auditory information was greater than that of visual stimuli. Limited to verbal material (letters) but not meaningful sounds (door bell ringing), his brain damage is limited to the phonologic
7 of 12
Strength of the model- Evidence from SC
Trojano and Grossi found SC had food learning abilities but couldnt learn word pairs presented out loud suggesting damage to phonological lop
8 of 12
Strength of the model- Evidence from LH
Farah et al sid that LH who performed better of spatiel tasks than those involving visual imagery provided evidence for the seperate visual and spatiel systems
9 of 12
Strength of the model- Word length effect- Badderley et al
Phonological loop explains word length effect. Longer words can't be rehearsed in the phonological loop. Effect dissapears if an articulatory suppression task is given because you cant rehearse either long or short words
10 of 12
Limitations of the model- Central executive- Eslinger and Damalio
Notion of a single CE is wrong, there are several components. Studied EVR who had a cerbral tumor removed, good at reasoning tasks (CE in tact) but bad in decision tasks (suggesting CE wasnt in tact). Therefore it must consist of seperate parts
11 of 12
Limitations- Evidence from brain damaged patients
Key evidence for the WMM comes from brain damages individuals, brain injury is traumatic and this could change behaviour thus results, also thay may have other difficulties such as paying attention and therefore they underperform in other tasks
12 of 12
Other cards in this set
Card 2
Front
Central executive
Back
Directs attention to the slave systems, very limited capacity, data arrives from the sensory or LTM memory (during retrieval)
Comments
No comments have yet been made