Memory 2 Flashcards
Traditional Stages of Memory
- Sensory
- Short term
- long Term
Facts about Sensory Memory
- Initial stage of encoding from stimulus to neural energy (Ex: tranduction of eye/ retina to brain or ear to brain or smell to brain)
- Briefest stage of memory process (lasts milliseconds to a few seconds)
- Rapid decay
- limited capacity
- _________________
Short-Term Memory
- Typically auditory
- Rehearsal (maintenance vs elaborative)
- Fill in the blank
History of Memory
Ebbinghaus(1800s)–Frederick Bartlett (1930s)–Gestalt school (1930s)–Sigmund Freud–Rise of Behaviorialism (1930s)–The Computer Revolution (1950s)–Modern Day
Long Term Memory (LTM)
- Relatively unlimited in terms of duration and capacity
- Ex:_____
Implicit/Non-Declarative Memory
-“How to” memory
-Procedural, emotional, priming
-Classically/ Operant condition behaviors
-Reflexive/ automatic
Ex:__________
Explicit/Declarative Memory
- “That is” memory
- episodic, semantic,
- Reflective
- Ex:______
Episodic vs. Semantic memory
- Both are types of Explicit/Declarative memory
- Episodic: Specific events at specific times (Ex:_____)
- Semantic: General knowledge (Ex:_____)
Implicit/Non-Declarative Memory
-“How to” memory
-Basal Ganglia is important structure
-Procedural, emotional, priming
-Classically/ Operant condition behaviors
-Reflexive/ automatic
Ex:__________
Explicit/Declarative Memory
- “That is” memory
- Hippocampus is important structure
- episodic, semantic,
- Reflective
- Ex:______
Recognition
-old-new/forced choice
Ex:____
-Guessing/ chance perfomance
Ex:_____
Neuroscience methods for studying memory
In Animals: Ablation studies, recording studies (Ex:_____)
-In Humans: EEGs, PETscans, fMRI
MODAL Model of memory
- Atinkson shriffrin (1968)
- Sensory registers
- Processes: Encoding–storage–Retrieval
- Major criticism
MODAL Model of memory
- proposed by Atinkson shriffrin (1968)
- One of the first
- Sensory registers
- Processes: Encoding–storage–Retrieval
- Major criticism
2 stages that Karl Ashley developed
- Mass action
- Equipotentiality
- How: In rats, moving parts of their brain in maze study
Problems with Ablation studies in animals?
-The brain works all together so you shouldn’t just cut things out to see how they work individually you have to see how it all works together
Ex: Recording studies (stereotastichic) using electrodes to record diff parts of the brain
What is a “Model” in relation to memory?
A visual representation of how things work
MODAL Model of memory
- proposed by Atinkson shriffrin (1968)
- One of the first “models of memory”
- Was updated in 1971 and added sensory registers
- Sensory registers
- Processes: Encoding–storage–Retrieval
- Major criticism: Too linear, meaning memory is more complex than what they make it seem, there’s top down processing
What is a “Model” in relation to memory?
A visual representation of how things work
Ex: ______
Sensory registers
- Think of them as “storage facilities”
- Stimuli comes into STM-LTM-Sensory Memory
- Memory can still get lost inbetween the storage facilities
What is a “Model” in relation to memory?
A visual representation of how things work
Ex: _____“Working memory”??
Does LTM last for the rest of your life?
Yes, unless you have a degenerative disease (massive loss of neurons)
Neural stage of sensory memory begins in the
Eye (Retina),
-b/c thats where transduction occurs.
Ear (hair cells on basilar membrane in the cochlea)
-b/c thats where vibration occurs
What “Lacks meaning” in relation to sensory memory ?
The nature of storage (The process of encoding/ transduction)
Why: b/c initially it’s just a picture or just a word once it’s processed in the brain…The info is just temporarily stored on the retina not in the brain cortex yet
3 Types of Sensory Memories
- Iconic: shortest stage(parallel, vision @ once), “memory for Visual” Ex:More parallel
- Echoic: “memory for Auditory” (Ex: More serial)
- Haptic/Tactile: “memory for Touch” (Ex: touch memory, identifying a key/objects by touch)
3 Types of Sensory Memories
- Iconic: lasts, 1/2 a second, “memory for Visual” (Ex:_____)
- Echoic: lasts 1-3 seconds, “memory for Auditory” (Ex:listening to the lectures vs. just watching silent video)
- Haptic/Tactile: “memory for Touch” (Ex: touch memory, identifying a key/objects by touch)
Between Iconic or Echoic, which memory processing is the shortest stage?
-Iconic (half a second)
SPAN (Capacity)
“How much info can be held in different memories”
Ex: NAOM’s Article Presentation
Real life Ex: While listening to the lecture recording I can process & take notes better just listening vs looking at powerpoints
Iconic Memory + 3 requirements
-The visual sensory memory
-“EYEconic memory”
Ex: GEORGE SPERLING 1960 ARTICLE
very little leave the retina to attention is required
saccides
it lasts on your eyes for 300-500 ms on the retina
rapid decay of info so there is no overlap of the 30ms gap from the saccide
George Sperling Article (1960)
- Span for iconic memory
- Methods/How: Used taschiscope to present stimuli quickly (the eye doctor test),
- Results/Findings: Iconic memory doesn’t last long, They only recalled 4-5 letters, there are 3 tones ppl will hear (Fz tones), Icon
- Memory span is dependent on yourself, We have more stored in iconic memory than we can recall (partial reports are more accurate),
- Pros: developed “Cueing recall”, and you can see more than you can recall, b/c iconic memory is so short
- Criticisms:
Iconic Memory
-The visual sensory memory
-“EYEconic memory”
Ex: GEORGE SPERLING 1960 ARTICLE
George Sperling Article (1960)
- Hypothesis:
- Methods/How: Used taschiscope to present stimuli quickly (the eye doctor test),
- Results/Findings: Iconic memory doesn’t last long, They only recalled 4-5 letters, there are 3 tones ppl will hear (Fz tones), Icon
- Pros/Cons: developed “Cueing recall”
- Criticisms:
What is important in memory ?
ATTENTION!!
- Specifically in the pre frontal region
- Things that are important get our attention
Trans-saccadic fixation
- Eyes moving around,
- No visual info from the eye is stored b/c its too quick
What does “filling in the gaps” refer to with iconic memory ?
-The iconic memory from the previous visual memory (Ex: The memory of what we just saw lasts for a few seconds)
Why is info lost from an iconic memory store?
- Interference:
- Ex: Sperlning 1963 Masking experiment
Interference
- Most likely responsible for short duration of iconic memory
- For STM and LTM
- Ex: A bright light coming in activates retina, interferes with ability to store the memory
- Real life Ex: Change blindness
Change Blindness
-Inability to detect changes in visual scene across icon stores
Ex: The gorilla basketball videos,
-Happens when:
-Reflects our Expectation & Perceptual Biases
-“Non perceptual biases can exert influence at this early stage”???
What Reflects our Expectations & Perceptual Biases?
Change blindness
-Ex:
Turvey (1973) Study
- Important for understanding Where Iconic memory is located and that it happens later on in the brain
- Methods/How: 2 types of masking stimulus, shined bright light in left eye, partipant could read the right eye
- Results/Findings:
- Pros/Cons: de
- Criticisms:
Echoic Memory
- The auditory sensory memory
- Last longer than iconic
- “ECHOE-conic memory”
Each sensory memory system is unique to it’s task
- Iconic: Info presented/ represented
- Echoic: Info presented in ephermeral
Sensory Memory
- Preconscious/ Subconscious experience (Ex:______)
- Located:
- Info is represented as experienced (Ex: ____)
- Attention to stimuli is critical (Ex:___)
Short Term Memory
- Longer than sensory memory (15-30sec)
- Capacity span is digit (7 +/2: Miller’s magic number)
- More centrally located than sensory memory (Ex: distinct & downstream)
- Quality of STM is _____ in different types
- MOSTLY AUDITORY but, different types (verbal, visuospatial, spatial, object memory etc)
3 Methods of Retrieval for STM
- 3.
Why is there a need for a working memory model?
- STM as a passive store of verbal/visual info not enough to explain daily activities
- Ex: performing complex math equation (keeping the numbers in STM but the process of long division is operating in LTM)
- Real life Ex: Conversation, needing to remember what was said in order to respond (semantic meaning is stored in LTM)