MEMORY THEORY 1
THE THREE BOX MODEL ALSO CALLED THE INFORMATION PROCESSING MODEL

Type of memory
Encoding
Duration (how long does information last)

Capacity (how muchcan be stored?)

Storage (in what form is information stored?)

SENSORY MEMORY
Visual-icon

Auditory-echo

Exact duplicates of the sensation

>1
large
The memory either goes away or it is transferred to short-term memory
SHORT-TERM MEMORY
sound
30 seconds or less (information can be held in STM longer if it is repeated; this is called maintenance rehearsal)
7 (plus or minus 2) chunks (or units of meaning) of information
Sound or physical aspects of the thing being remembered
LONG-TERM MEMORY
By semantic meaning

Information gets into LTM by 

  • Elaborative rehearsal
  • Deep processing
Can be permanent (or can be forgotten as a result of decay, replacement, interference, inadequate retrieval cues) or psychgenic amnesia
unlimited
By meaning 

Types of memories stored in LTM

·EXPLICIT (tested by recall & recognition)

oDeclarative

§Semantic

§Episodic

·IMPLICIT (tested by priming)

oprocedural

MEMORY THEORY 2
PARALLEL DISTRIBUTED PROCESSING MODEL (PDP)

POSSIBLE INFLUENCES ON THE RECONSTRUCTION OF MEMORY

Source misattribution or source amnesia
Filling in blank spaces in ways that make the memory makes sense
Confabulation
        o Remember something that happened to someone else as though it happened to us
        o Remembering things that NEVER happened e.g. having a false memory
            -This is more likely to happen under certain conditions

REASONS FOR CHILDHOOD AMNESIA

1. synapses for LTM are not fully connected
2. no language
3. limited experience
4. limited ability to encode things only very simple encoding

MEMORY AND THE BRAIN

1. what parts of the brain are involved
a. CEREBELLUM procedural memories
b. FRONTAL LOBE short-term memories
c. HIPPOCAMPUS long-term memories
d. CEREBRAL CORTEX sensory memories located in the lobes where the sensation was received

2. what changes take place in the brain as a result of memory?

a. long-term potentiation increases responsiveness at the synapses
b. adrenalin increases LTM