9. Remembering Brain II Flashcards
Memory in the mind, limited capacity
STM
stored memories, not consciously accessible, unlimited capacity
LTM
manipulation of information in the STM for the purpose of serving cognitive functions
Working Memory
When this memory fails, we lose ability to do many daily activities
Working memory
Describe Baddeleys WM model
- central executive controls info in the slave systems. Relies on PFC
- visuospatial sketchpad
- phonological loop: verbal info
- episodic buffer: retains episodic info from LTM for short period of time
Evidence for phonological and visuospatial systems being separate with separate capacities
- a phonological task will interfere with another task involving the phonological loop
- a visuospatial task will not interfere with a phonological task
PET evidence for different regions involved in phonological vs visuospatial stores
- left hemisphere active during phonological/verbal task
- right hemisphere active for visuospatial task
This test can predict verbal WM - participant has to remember words while doing maths questions
The operation span
What is the capacity of the phonological STM according to Miller 1956
7 +/- 2 in meaningful chunks
T or F, visuospatial STM is studies via change detection and cued recall
TRUE
Model which states that small number of memory parts can each store a single visual object with high precision
The slot model
Model which states that there is no limit on the number of visual items in STM, but the more we hold the less precise each is
Resource model
Evidence for slot model
4 slots in visual memory for objects, and features about each of the 4 objects retained as long as features distributed evenly
What happened during a delay when the fusiform face area was activated to a cue and probe face in a memory task
It remained active to keep the cue face in WM
