Warm up 4/16 Do you have a good memory? What kinds of things do you remember most clearly? How do you remember?

Presentation on theme: "Warm up 4/16 Do you have a good memory? What kinds of things do you remember most clearly? How do you remember?"— Presentation transcript:

1 Warm up 4/16 Do you have a good memory? What kinds of things do you remember most clearly? How do you remember?

2 Memory Game What techniques did you use to try and remember where the cards were? Was it successful?

3 Introduction to Memory

4 Three Stages of Memory Encoding – putting things into the memory Storage – Maintaining the memory Retrieval – Recovering the memory

5 Encoding Translation of info into a form so it can be stored as a meaningful entity. 3 ways to do this – Visual codes—Trying to make a mental picture – Acoustic codes— Read it to yourself and repeat it in your head – Semantic codes—Relating it to meaning

6 Storage 2 nd Process of memory Memory of stored after being encoded Use a variety of strategies to store new info.

7 Retrieval 3 rd memory process Locating stored memory and returning it to conscious thought Much like retrieving info from a computer— have to know the file name to know where to look.

8 Three Memory Stores The Atkinson- Shiffrin Theory Information is first placed into the SENSORY store It is then transferred into the SHORT TERM store. If we are successful in remembering – it moves into the LONG TERM store.

9 THE SENSORY STORE Captures all info captured by senses. Decays quickly - from a few tenths of a second for the visual to a few seconds for the auditory. Small portion is transferred from SENSORY to SHORT TERM. Think about your FIRSTS!!!

10 THE SHORT TERM STORE Also known as WORKING MEMORY Five characteristics: – Info that you are conscious of – Readily accessible – Decays in about 20 seconds – Rehearsal prevents decay – Can be processed and transported to long term memory (process is called ELABORATION)

11 THE LONG TERM STORE Large repository of info in our brain. Holds all info that is available to us. Three characteristics: – Info enters LTS from STS via elaborative processes – Size of LTS is unlimited – Info is acquired via retrieval and put back into STS where it can be accessed and manipulated.

12 DIFFERENT TYPES OF MEMORY Episodic / Flashbulb Generic Procedural

13 Flashbulb Memory Recall certain important events in great detail Why does this happen? – We pay attention to events that have special meaning to us and arouse powerful feelings

14 Memory In more detail

15 Sensory Memory Types of sensory memory most carefully studied are: – Vision which is called ICONIC memory and – Audition which is called ECHOIC memory

16 Read me Read and annotate the ICONIC MEMORY handout. What is partial report procedure? What is whole report condition?

17 Warm up 4/19 Read and memorize the piece provided. You have 7 minutes to work on this.

18 How did you do? Test yourself. – Pick a partner. Recite the poem. What percentage did you memorize correctly? How did you memorize? What strategies did you use? Did you understand the poem? Did that make it easier/worse?

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20 STS or Working Memory To encode info into the working memory we have to attend to it. We are selective about what we attend to so not everything makes the transition from sensory to working memory.

21 Storage strategies Maintenance Rehearsal – Repeating it over and over again More time spent, longer it will be remembered Elaborative Rehearsal – Relating it to info already known More effective, lasts longer

22 Coding We encode visually, phonologically and semantically. That means be remember the visual details, the way something sounds or what it means or relates to. Some people can see something briefly and have complete recall. That is called EIDETIC MEMORY.

23 Try this 6422347

24 Write it down Write down the number that you just saw. As you wrote in down did you visualize it or repeat it in your head?

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26 Write Describe the picture in as much detail as you possibly can.

27 How many How many yellow swirls are on the man’s shirt? How many stripes are there on his hat? How many rings of smoke are there? How many purple flowers?

28 Warm up 4/21 Pretend this is your diary. Journal about your day yesterday. Write as much as you can remember in as much detail as you can remember.

29 Part 2 Switch your warm up with someone in the class. Read the warm up. – What does the information that they have recalled tell you about how they are remembering? Is it chronological? Is it a snapshot of info? Do they use their senses etc.

30 Limitations Our working memory is limited. Ever wonder why phone numbers are 7 digits – that’s all we can hold in our working memory – 7 items (+ or – 2).

31 Chunking Because of our capacity limit we chunk info. Try this. Memorize: – SRUOYYLERECNIS

32 How did you do? Now try this. Memorize: – SINCERELY YOURS

33 Much better right If we chuck info, e.g. – 805-672-3457 Instead of – 8056723457 We have a better chance of remembering.

34 Long Term Store There are different kinds of memory in your LTS. Implicit - a type of memory in which previous experiences aid in the performance of a task without conscious awareness of these previous experiences Explicit - conscious, intentional recollection of previous experiences and information.

35 Episodic Memory Memory of a specific event – Ex. – what you had for dinner last night Flashbulb Memory – Specific events that are important affect you as if there had been a “flashbulb” that went off in your head and took a picture of it. – Vivid and relatively permanent record of emotionally charged and significant event.

36 Flashbulb Memory Write your own example. Try something like: – 9/11 – Your first kiss – Your first game – Your first pet

37 Semantic (Generic) memory Semantic memory consists of all explicit memory that is not autobiographical. Examples of semantic memory is knowledge of historical events and figures; the ability to recognize friends and acquaintances; and information learned in school, such as specialized vocabularies and reading, writing and mathematics.

38 Semantic (Generic) Memory General Knowledge – Washington was the 1 st. President Don’t remember when or where we learned it – Ex. – alphabet- do you know when, where, and how you learned it? Most of what you learn in school is this

39 Procedural Memory Learned skills or procedures Once you learn a skill it usually stays with you for a long time Ex. – riding a bike, using a computer, driving a car, etc.

40 Memory Game Take a handful of LEGOS and create something. It does not have to be anything that we would recognize. You need to work in PRIVATE on this. When you are done, take a picture of it with your phone. Pick a partner and give them 30 seconds to look at the creation. Take it and break it up. Your partner’s task is to recreate the piece as accurately as possible.

41 Game Reflection What strategies did you use to remember what the piece looked like? How accurate was the recreation?

42 Warm up 4/23 Write three examples of long term memories from your own experience. – One should be episodic, one should be procedural and one should be semantic.

43 Implicit or Explicit Which are they? – Procedural – Episodic/Flashbulb – Semantic (Generic)

44 Explicit – Episodic & Semantic Implicit - Procedural

45 Forgetting Items in our memory decay over time. There are many reasons for this: Old items are replaced by new ones. There is interference. We cannot find a meaning for the info.

46 How not to forget Organization – We are better able to remember info if we categorize and organize it. – Try this: remember this list of names as they appear. – Bob, James, Emmanuel, Carmine, Elora, Heidi, Benjamin, Freda, Melanie, Cherie, Karen, Jonah.

47 Organization – Now try this: remember this list of names but organize them in some fashion. – Malcolm, William, Iris, Yolanda, Susan, Bradi, Jamie, Molly, Pixie, Jessica, Bruce, Zander – Which was more effective? How did organization help?

48 Context It is easier to remember something if you are in the same context as you were when you encoded it. If you were to have to remember the names of your 1 st grade class, you would probably remember more if you were actually back at your classroom.

49 Repression & Amnesia Repression and amnesia are extreme forms of forgetting Repression – pushing disturbing memories from conscious mind – A way of protecting feelings of anxiety, guilt, shame, pain, etc. We do this on purpose without even knowing it

50 Amnesia Severe memory loss caused by brain injury, shock, fatigue, illness, or repression – Infantile Amnesia - can’t remember events from infancy and early childhood If you think you can what you are doing is reconstructing that memory from other memories – Anterograde amnesia – prevents a person from forming new memories after a trauma – Retrograde amnesia – forget the period leading up to the trauma

51 Two famous cases Clive Wearing – video HM – Homework – Read About HM (Henry Gustav Molaison) – What is his memory loss? What brain damage has occurred? How is his life impacted by this?

52 Forgetting In 1885, Hermann Ebbinghaus discovered the exponential nature of forgetting. The following formula can roughly describe the forgetting: – where R is memory retention, S is the relative strength of memory, and t is time.

53 Forgetting Curve

54 Forgetting Illustrates the decline of memory retention in time. A related concept is the strength of memory that refers to the durability that memory traces in the brain. The stronger the memory, the longer period of time that a person is able to recall it. A typical graph of the forgetting curve shows that humans tend to halve their memory of newly learned knowledge in a matter of days or weeks unless they consciously review the learned material.

55 Forgetting The speed of forgetting depends on a number of factors such as the difficulty of the learned material (e.g. how meaningful it is), its representation and physiological factors such as stress and sleep. The basal forgetting rate differs little between individuals. The difference in performance (e.g. at school) can be explained by mnemonic skills.

56 Eye witness testimony Eyewitness identification evidence is the leading cause of wrongful conviction in the United States. Of the more than 200 people exonerated by way of DNA evidence in the US, over 75% were wrongfully convicted on the basis of erroneous eyewitness identification evidence

57 The Innocence Project The Innocence Project has facilitated the exoneration of 214 men who were convicted of crimes they did not commit, as a result of faulty eyewitness evidence. Why is eye witness testimony unreliable? – Stress – Weapons – Rapid decline

58 Remembering – Primacy effect- recall first items because you have more time to practice them – Recency effect- recall last items because they are fresher since last given

59 Retrieval Cues Any stimulus that helps us recall information in long-term memory Two general principles govern the effectiveness of retrieval cues – encoding specificity and distinctiveness.

60 Encoding specificity According to this principle, stimuli may act as retrieval cues for an experience if they were encoded with the experience. Pictures, words, sounds, or smells will cause us to remember an experience to the extent that they are similar to the features of the experience that we encoded into memory. For example, the smell of cotton candy may trigger your memory of a specific amusement park because you smelled cotton candy there.

61 Distinctiveness Distinctiveness determines the effectiveness of retrieval cues. Suppose a group of people is instructed to study a list of 100 items. Ninety- nine are words, but one item in the middle of the list is a picture of an elephant. If people were given the retrieval cue “Which item was the picture?” almost everyone would remember the elephant.

62 Déjà Vu and Jamais Vu Describe a time where you could swear that you remember doing something before. You don’t know when but you know you have done the exact thing once before.

63 How it works The sense of déjà vu (French for “seen before”) is the strange sensation of having been somewhere before, or experienced your current situation before, even though you know you have not. One possible explanation of déjà vu is that aspects of the current situation act as retrieval cues that unconsciously evoke an earlier experience, resulting in an eerie sense of familiarity. Another puzzling phenomenon is the sense of jamais vu (French for “never seen”). This feeling arises when people feel they are experiencing something for the first time, even though they know they must have experienced it before. The encoding specificity principle may partly explain jamais vu; despite the overt similarity of the current and past situations, the cues of the current situation do not match the encoded features of the earlier situation.

64 Tip of the Tongue Refers to the situation in which a person tries to retrieve a relatively familiar word, name, or fact, but cannot quite do so. Although the missing item seems almost within grasp, its retrieval eludes the person for some time

65 Theories An intruding item essentially clogs the retrieval mechanism and prevents retrieval of the correct item. That is, the person cannot think of one thing because another gets in the way and blocks retrieval of the correct name. Another idea is that the phenomenon occurs when a person has only partial information that is simply insufficient to retrieve the correct item, so the failure is one of activation of the target item.