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Memory The memory is a crazy old lady that collects colored rags and throws away food.

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Presentation on theme: "Memory The memory is a crazy old lady that collects colored rags and throws away food."— Presentation transcript:

1 Memory The memory is a crazy old lady that collects colored rags and throws away food.

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3 Information Processing Model: The Brain works like a computer.
Encodes Packages info Stores Safely keeps info for later use Retrieves Brings info back into the conscious mind Do you think that the brain works like a computer? How is remembering something like opening a file on a computer?

4 Three Types of Memory In humans, information processing occurs in three systems: sensory memory, short-term memory, Long term memory. Which part of memory is malfunctioning in Dory’s case?

5 Stage Model of Memory Includes 3 Types of Memory
Long-Term Memory Short-Term Memory Sensory Memory

6 Sensory Memory Lasts only 1-2 seconds
Usually in the form of an icon or an echo Allows us a very short period of time to review the overwhelming amount of sensory information. Most information is discarded, but some is selected for more extensive rehearsal.

7 Let’s Examine our own thought process
Get out a blank piece of paper and write down all responses that come to mind in the order that they occur Your Task: Name the seven dwarfs from “Snow White”

8 How difficult was this task? Was it Easy or Hard
Memory is the persistence of learning over time What are some factors that made it easy or hard? To name the 7 dwarfs we must Get the info into our brain (encoding) Retain it over time (storage) Get it back out (retrieval)

9 Now lets try the Reindeer. There are 8

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11 Short-Term Memory Memory loss RETROGRADE ANTEROGRADE
Can’t retrieve memories from the past (especially the recent past) ANTEROGRADE Can’t form new memories Short-Term Memory I will read a list of ten words. See how many you can remember through simply repeating them to yourself. Temporary storehouse for small bits of info 7 ± 2 = The “Magic Number” Often stored by sound rather than images May actually be closer to 4 Sensitive to interference More commonly called working memory in psychology the duration of short-term memory is limited to about 18 seconds unless the subject rehearsed the information, in which case it is maintained in short-term memory indefinitely. We rehearse information in the Articulary Rehearsal Loop. This allows us to store something in STM for longer than is natural.

12 Meaning and Chunking Which is easier to remember: A) Or B) This is because the numbers now have meaning to us and because we have chunked them to remember bits. For example: if you were a bowler, and on one night you had bowled three games if 171, 202, and 156, then the meaning of those number groupings would allow you to think of the same numbers, in the same order, as three meaningful units or chunks. If something is meaningful to us we are much more likely to remember it. Do you remember anyone’s phone number? What number have meaning for you that you remember?

13 Long-Term Memory Relatively permanent (not absolutely)
Capacity is limitless- 2,500,000 Gigabytes Mistakes in LTM will be similar in meaning> We mix up similar things instead of not remembering. Often revised/updated “constructive processing” We update memories each time that we recall them TRUE or FALSE: Being confident about a memory indicates its accuracy.

14 Types of Long-Term Memory
EXPLICIT or DECLARATIVE MEMORY episodic information Memory of an event or episode birthday party your sister’s wedding the day you won first place. . . semantic information Vocabulary words General knowledge/facts

15 Types of Long-Term Memory
IMPLICIT or NON-DECLARATIVE MEMORY Outside of awareness Hard to put into words Procedural information “how to. . .” Motor skills Actions Activity: Think of an example of each type of LTM and share with the class.

16 How can we get information into LTM?
Rehearsal Maintenance (repetition) Elaborative → making connections with other things we already hold in memory Chunking Grouping into categories Mnemonic devices Catchwords, jingles, acronyms, wild stories Good for memorizing, not so good for understanding What Acronyms do you know for memorization?

17 Create a story using the 11 words in order in the list below.
Palace Officer Mule Wheat Market Table Student Juggler Insect Flag Tree Elephant Doctor Fireplace Clothing Whiskey Church Clock Corpse Icebox Hotel Moon

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19 How can we measure memory?
Recall Must retrieve info with few clues Example: Essay Fill-in-the-Blank (with no word bank) Recognition Must identify correct answer from info provided Example: multiple choice test Relearning memory “savings” score

20 Problems with Long-Term Memory
Interference = One memory competing with and replacing another RETROACTIVE OLD NEW New memory interferes with the old PROACTIVE OLD NEW Old memory interferes with the new STOP HERE STEPHENSON!

21 Amnesia Memory loss RETROGRADE ANTEROGRADE
Can’t retrieve memories from the past (especially the recent past) ANTEROGRADE Can’t form new memories

22 Reasons for Forgetting
Encoding failure Not storing information in the first place Decay Fading of memory traces in neurons Especially a problem with sensory memories and STM Cue-dependent “tip of the tongue” Forgetting may be a result from retrieval failure rather than encoding or storage If you have the right trigger, you will remember

23 Reasons for Forgetting
State-dependent or Mood-dependent Bodily or emotional state that exists during encoding can be a trigger for later memory retrieval

24 Stage 1 Stage 2 Stage 3 STM Sensory Memory Long-Term Memory Forgotten
Rehearsal Buffer Incoming Info Selective Attention Coded for Storage Sensory Memory Long-Term Memory STM “Consolidation” Not encoded Not attended to Forgotten Forgotten

25 Levels of processing Shallow processing or maintenance rehearsal
Involves simple repetition of the presented material. This is not an effective way to encode material. Example: Most people do not have accurate memories of the organization of numbers, letters, and symbols on a push-button telephone, despite having seen and used them many, many times.

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27 Levels of processing Deep processing or elaborative rehearsal
Coding by forming associations between new information and information already stored. Makes information more meaningful. Example: If a student attempts to relate information presented in class to his or her own life, it will be easier to remember in the future.

28 Deep Processing This involves Semantic processing, which happens when we encode the meaning of a word and relate it to similar words with similar meaning. Deep processing involves elaboration rehearsal which involves a more meaningful analysis (e.g. images, thinking, associations etc.) of information and leads to better recall. For example, giving words a meaning or linking them with previous knowledge.

29 Serial Position Effect
Our memory for a list of items tends to be better for items at the beginning or the end of the list and worse for items in the middle of the list. Why do we remember the first and last entries on a list?

30 Primacy and Recency The primacy effect is the enhanced ability to recall items from the beginning of the list. The recency effect is the enhanced ability to recall items from the end of the list. Think about movies you have seen or books you have read, do you remember the beginning and end more than the middle?

31 Reconstructive Memory
The process of piecing together memories by fitting them to a meaningful plan or organization. Accounts for much of the inaccuracy of our recollections. We fill in gaps with assumptions because we are uncomfortable with the gaps. Once we've done this, distinguishing what actually happened from what we filled in is almost impossible.

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