define forgetting
the process by which we loose infomation over time (forgetting allows a negatively accelerating function: rapid lost at first, slows down, and then levels off)
the three stages in learning and memory process
encoding, storage, and retrieval
broadbents model
on three major components of memory
s-system, p-system, and secondary memory
what is the capacity of STM and how is it measured
7 +/- 2 (Miller, 1956), is measured by the number of items that we can recite back without error 50% of the time (demonstrates that it has a capacity UNDER 10)
what is the capacity of LTM
unlimited, retrival to STM
chunking defintion and the why behind this
Because capacity is limited, we have to group information to retain more of it
what are the control processes of the modal model of memory
rehersal, encoding, retrival, decision
what is the key claim of Modal Model?
the longer an item stays in STM (via rehersal), the more likely it is for the information to make it to LTM
what can forgetting something that has made it to LTM be because of?
interference or retrival failure
What is working memory
the system for the temporary maintenance and manipulation of information (required for learning, reasoning, and comprehension
what is free recall
lets us see how memory naturally retrieves item (can be tested through seeing a list of items and recalling them in any order)
primacy effect
early items are remembered better (this is because they get more rehersal, stay in STM longer, and transfer into LTM) primacy= LTM driven by rehersal
recency effect
Last items should be recalled first because they are still in STM at the moment of recall and have not had time to be displaced yet
What is the difference between immediate and delayed free recall
immediate recall: being asked to repeat everything you just saw
delayed: implementing a task after recall and then being asked
What areas of the brain are important for memory
hippocampus, temporal lobe, PFC
What are the components of working memory (Baddeley and Hitch, 1974 model)
phonological loop, visual-spatial sketchpad, and the central executive
what are the components of a phonological loop
phonological stores, a speech-based system (hold sounds briefly), and articulatory control processes (rehearse via inner speech)
what are the components visual-spatial sketchpad
a system that is responsible for storing and manipulating spatial information (a mental whiteboard for images and spatial layouts)
what is the central executive and its functions
cosidered to be the control system, responsible for directing attention, coordinating subsystems, managing interference, and selecting strategies
What are the components of an episodic buffer?
a system that integrates visual, verbal, and LTM by creating unified episodes
what was the conceptual shift that occured when transition from modal model STM to working memory?
Modal model STM (believed there was one box that was a passive store) versus working memory (multiple sub ststems, active system, with executive control)
What is articulatory suppression
a technique that impairs memory by preventing the subvocal rehersal of information
what is maintenance rehersal
simply repeating items over and over again (phonological loop/STM)
within the LOP framweork what are the three types of processing that can occur
orthographic, phonological, and semantic (OPS)