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7B – Thinking, Problems Solving, Creativity, and Language
Cognition 7A – Memory 7B – Thinking, Problems Solving, Creativity, and Language
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Memory Memory – Example –
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The Memory Process Three step process…. Encoding: Storage: Retrieval:
Getting the info into the brain Storage: Retaining the info Retrieval: Getting the info back out Encoding – getting info into memory (aquiring the info) Storage - retention of info Retrieval – getting info out of memory
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4 Memory Models Atkinson-Shiffrin 3 stage model
Modified Atkinson-Shiffrin Connectivism Model
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Atkinson and Shiffrin’s 3 Step Model of Memory
Sensory memory – brief recording of sensory information Example: Short-term memory – memory that holds few items briefly before info is forgotten Example – Long –term memory – relatively permanent and limitless storage of memory. Examples: Sensory memory is fleeting – some gets processed in short term memory Short term – consciously activated, but limited in capacity Ex. Looking at a new phone number only remember long enough to dial it Long term – permanent, limitless flash bulb memory Pay attention to something so it gets encoded into long term memory.
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Sensory Memory Sensory Memory – Examples:. Iconic Memory –
Echoic Memory –
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Short Term Memory Short –term memory –
Encoded visually, acoustically or semantically through rehearsal. Hold items for about 20 seconds. We recall digits better than letters. Short Term Memory Activity
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Long Term Memory Long-term memory – Examples:
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Modified Atkinson – Shiffrin (3 Stage) Model
2 New concepts Working Memory – that combines novel (?) or important info along with info retrieved from Instead of short-term memory being just a 20 sec. holding tank, this model includes the ability to briefly process info Some info skips the 1st two stages in Atkinson’s/Shiffrins and is processed into Example – Working memory – active information processing that occurs in short term memory Daydreaming in class, calculating a number integration of new incoming information with knowledge retrieved from long-term memory
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Modified Three-stage Model of Memory
Active processing occurs in the short term memory stage, that many now perfer the term working memory Short term memory is not infor that we remember for days or weeks and then forget. True short term memory only lasts about a minute or so.Memories that stay with us, but not permanenetly are stored in working memory Pledge of allegiance – ask students if they can recite the second sentence of the pledge. It consists of a single sentence
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Connectionism Model of Memory
Many neurons may work together to process a single memory memory emerges from particular retrieval of the memory is a reconstruction based on each of the elements of the pattern A modern information-processing model that views memories as emerging from particular activation patterns within neural networks is known as the view that memory emerges from interconnected neural networks
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How We Encode 2 Types of Encoding Automatically Processing
Parallel Effortful processing Rehearsal Parallel processing = automatic processing 2 types of encoding – automatic and effortful Parallel processing allows many sensory experiences to be encoded all at once, some automatically, some with effort We can encode many sensory experiences simultaneously, some automatically, because of parallel processing Effortful can only occur with conscious attention
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Encoding - Automatic Processing
Examples: Time – space – Frequency – well learned info – Automatic occurs without unconscious awareness Space – cant remember what Active processing means, but remember the page and where it appears in your textbook Activity: What time did you get up? What did you have for breakfast? Lunch? So far, who have you talked to? What did you talk about? Can you retrace the route that you took to class today? Did you see anyone more than one time.
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Automatic Processing Parallel Processing – -unconscious or effortful
Example:
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Spring is the the most beautiful time of the year
Automatic Processing Spring is the the most beautiful time of the year May not notice the repeated word “the” in the poem – demonstrates the limits of automatic processing Most high school students take reading for granted. Students who read on grade level process the words without much effort
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Encoding – Effortful Processing
Example: Rehearsal – Effortful can become automatic through practice Only occurs conscious effort Study of information played during sleep found that ears register it, but it’s not remembered…requires effortful processing Rehearsal – meeting someone for the first time, you repeat their name over and over Practicing 12 days of Christmas Activity Write down the gifts in the familiar song Twelve Days of Christmas. The first gift is repeated 12 times, the second 11 times, and so on. Schulman reports that recall for the entire class (especially when the class is fairly large) shows a nice decline from the first to the last gift. One exception is “five golden rings.” The gift has the distinctive feature of being sung more slowly or held longer. You can collect and tabulate the data between classes or more simply chart memory for each gift by a show of hands. Display the forgetting curve on the chalkboard. If you have relatively small classes you may combine data for multiple sections or even keep a running summary of terms. To refresh your own memory, here are the gifts: l Partridge, 2 Turtle Doves, 3 French Hens, 4 Calling Birds, 5 Golden Rings, 6 Geese A-laying, 7 Swans A-swimming, 8 Maids A-milking, 9 Ladies Dancing, 10 Lords A-leaping, 11 Pipers Piping, and 12 Drummers Drumming.
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Ebbinghaus’s Forgetting Curve
Ebbinghaus Curve – Overlearning – The more times Ebbinhaus practiced a list of nonsense syllables on day 1, the fewer repetitions he required to relearn on day 2. Ebbinghause made extensive use of nonsense syllables to study memory ie JIH, BAZ, FUX, YOX Curve illustrates the value of rehearsal
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Effortful Processing Spacing effect – distributed study is better for long-term recall than massed study (cramming) DO NOT CRAM!!!!!!!!!!!! Testing effect – repeated quizzing or testing improves retention Studying for an AP Psych Test 15min/day for 8 days than cramming for 2 nights Restudying course material at end of the quarter in order to pass the AP Exam likely to demonstrate long-term retention of course material Repeated quizzing of information increases the chances it will be recalled
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Take out a piece of paper and name all the Presidents…
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Encoding Information Serial Positioning Effect – Von Rostorff effect –
Primacy Effect – Recency Effect – Von Rostorff effect – After meeting my classes on the first day of school I can only recall people at the beginning of the alphabet After hearing a shopping list read off, we tend to remember the first and last, items but not the middle Primacy Effect remember recalling 1st items Recency Effect – remembering items at the end of a list Because the words at the beginning of the list get rehearsed more often than the others, they are more likely to be transferred into LTM. The recency effect reflects STM storage. Words at the end of the list are the ones still available in STM Semantic memory activity – John walked on the roof…Santa Clause walked on the roof
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What We Encode… Encoding Exercise Visual Encoding: the encoding of picture/visual images. Example – 2. Acoustic Encoding: the encoding of sound, especially the sounds of words. Example: 3. Semantic Encoding: the encoding of meaning. Visual encoding – encoding of picture images One reason we remember so little from infancy is that we are unable to verbally label our experiences Acoustic – encoding of sounds , especially words Semantic Encoding – refers to the processing of meaning any personally meaningful event Preconceived ideas about things contribute to our ability to process new info illustrates the importance of semantic encoding Children can better remember a verse from Romeo and Juliet if it is explained to them Even a simple sentence becomes easier to recall when it is meaningful: The notes were sour because the seams split – bagpipe The voyage wasn’t delayed because the bottle shattered – ship Christening The haystack was important because the cloth ripped - parachutist Serial Positioning Effects demonstrates the importance of rehearsal.
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Visual Encoding Encoding Exercise Imagery – visual images help us remember concrete words (aided by semantic encoding) Example: Rosy Retrospection – recalling high points, forgetting the worst
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Mneumonics Encoding Exercise Mnemonic Devices – any memory aid that uses visual images and organizational devices EXAMPLES: Peg word system – Example: One is a bun (chicken squashing bun), two is a shoe (corn filling up shoe)… Method of Loci – Example: remembering items on a grocery list by associating them with a place in our house (chicken is pecking at front door, corn smashed in foyer etc) Mnemonic devices use vivid imagery and clever ways of organizing information Peg word – visually associating words on a shopping list with bun shoe, tree, door, hive (milk, eggs, butter, bread, sugar) Chunking contacts; 1800 – IBM HELP
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Mneumonics 3. Hierarchies – 4. Chunking – Every Good Boy Does Fine
Encoding Exercise 3. Hierarchies – 4. Chunking – Example: PORN – Proactive Interference: Old info interferes with New Retroactive Interference: New interferes with Old Every Good Boy Does Fine 1-800-IBM-HELP Hierarchy – list of things you need for college Sheets, popcorn, pencils, bedspread, pretzels, notebooks
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Acoustic and Semantic Encoding
Acoustic Encoding: the encoding of sound, especially the sounds of words. Example: Semantic Encoding: the encoding of meaning. Examples: Self Reference Effect – Acoustic – being able to recognize your mother’s voice on the telephone Rhyming Semantic Encoding produces better recognition later than visual or acoustic Learning meaningful material requires 1/10 the effort compared to learning nonsense material…rephrasing text into your own words will help you remember it better Ie. Using synonyms Time spent thinking about material you are reading and relating it to previously stored material is about the most useful thing you can do to learn a new subject Amt remembered depends on time spent learning and on your making it meaningful Self reference effect – have better recall for info we can meaningfully relate to ourselves. Find personal meaning in what you are studying –make it more relevant to you.
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Storage Types of Memory Sensory Memory Working Memory/Short-term
Iconic Echoic Working Memory/Short-term Long-Term Memory Implicit Memory/Procedural Memory Conditioned Memories Explicit Memory Episodic Memory Semantic Memory Flashbulb Memories
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Sensory Memory Sperling’s memory experiment Iconic memory – Example:
After flashing an image, participants had a momentary mental image of all 9 letters Iconic memory – A momentary mental image that remains after the image is gone Example: A momentary mental image that remains after seeing a phone number flashed on the TV Iconic memory – photographic memory Sperling flashed a group of letters for 1/20th of a second. People could recall only about ½ of letters. When signaled with a tone, to recall a particular row, they could do so with perfect accuracy. Echoic memory – memory for auditory stimuli – if attention is elsewhere sounds and words can still be recalled within 3-4 sec Ex. Teacher asks “what did I just say”…recover last few words in mind’s echo chamber Sperling activity from Psych Sim
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Sensory Memory Echoic memory –
A momentary auditory impression that remains after the sound is gone Example: Iconic memory – photographic memory Sperling flashed a group of letters for 1/20th of a second. People could recall only about ½ of letters. When signaled with a tone, to recall a particular row, they could do so with perfect accuracy. Echoic memory – memory for auditory stimuli – if attention is elsewhere sounds and words can still be recalled within 3-4 sec Ex. Teacher asks “what did I just say”…recover last few words in mind’s echo chamber Sperling activity from Psych Sim
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Working/Short-Term Memory
Duration – Brief (30 sec or less) without active processing Slightly longer for auditory info than visual info Numbers better than letters Capacity - Limited Magic number Seven Plus or minus 2 The list of magic sevens Short term memory is limited by duration and capacity – typically hold about 7 bits of information Dori video
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Long-Term Memory Duration – Capacity -
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Types of Long Term Memory
Implicit Memory/Procedural Memory Conditioned Memories Explicit Memory Episodic Memory Semantic Memory Flashbulb Memories
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Types of Long-Term Memory
Patients who have experienced brain damage may be unable to form new personal memories but are able to learn to do jigsaw puzzles, without awareness of having learned them. This suggests that the system for creating explicit memory has been affected, not the implicit memory system.
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Implicit Memories Implicit/Procedural Memories –
Processed by and other brain areas still intact with Examples: Conditioned Memories – Example: Procedural – without conscious recall A retention of skills and dispositions without conscious recollection is known as implicit memory. Playing cards, jigsaw puzzle Patients who have experienced brain damage may be unable to form new personal memories but are able to learn to do jigsaw puzzles, without awareness of having learned them. This suggests that the system for creating explicit memory has been affected, not the implicit memory system. Cerebellum plays a key role in forming and storing implicit memories created by classical condition
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Explicit Memories Explicit Memories – memories of facts and experiences, consciously recalled Processed by information is stored in the are stored in Infantile amnesia – Hippocampus is one of the last brain structures to develop Example: Explicit- conscious memory of factual information, general knowledge Processed by the hippocampus – one of the last brain structures to mature Although implicit memories are processed by the hippocampus it is only a temporary holding place. Sleep consolidates memories from the hippocampus and stores them cerebral cortex fro long term storage
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Explicit Memories Episodic Memories - Semantic Memories – Example:
Explicit- conscious memory of factual information, general knowledge Processed by the hippocampus – one of the last brain structures to mature
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Explicit Memories Flashbulb Facilitated by
Prolonged stress however, can inhibit memory formation by When excited or stressed the body releases stress hormones on memory during an emotionally significant event. Amygdala (emotion center of the brain) boosts activity and proteins in the memory forming areas of the brain = sears events into the brain Vivid recollections are adaptive - help us predict the future and alert us to potential dangers Prolonged stress inhibits memory formation by shrinking the hippocampus – ie. Child abuse, combat stress Weaker emotions = weaker memories
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Storing Memories Memory trace – memory is distributed acoss groups of neurons Long Term-Potentiation – physical basis for memory . Increases synaptic firing potential of a neuron by increasing the number of receptors on the receiving neuron. Neurons that fire together wire together…creating a memory. Memory boosting drugs CREB – increases proteins that make a cell more likely to keep a memory Glutamate – enhances synaptic communication (LTP) Sea slug – learning occurs when serotonin is released from neurons An increase in the neuron’s firing potential LTP provides a neural basis for learning. It increases the sensitivity of a receptor causing the post synaptic neuron to fire at an elevated rate causing greater efficiency in the neuron which strengh Sea slugs, mice, and fruit flies have displayed enhanced memories following enhanced production of the protein One effect of Long term potentiation is that a receiving neuron’s receptor sites may increase Long-term memory clearly involves physical changes in the brain—most likely some kind of facilitation at the synapse. Repeated experiences increase the efficiency of certain synapses by “pulling” together receptor sites and axon endings closer together, as well as making the receptor neuron more sensitive over the long run. Long-term potentiation = making receptor more sensitive to firing CREB – Protein that increases proteins that make a cell more likely to keep a memory amount of CREB influences whether or not the brain stores a memory, .If a cell is low in CREB, it is less likely to keep a memory. If the cell is high in CREB, it is more likely to store the memory Once LTP has occurred, passing an electric current through the brain won’t disrupt old memories, but will wipe out new ones. A blow to the head will do the same—not time to consolidate info into long term memory (don’t remember anything right before)
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Amnesia Amnesia – loss of memory
Retrograde Amnesia – inability to remember past events Example Alzheimer’s Patient Ronald Reagan Anterograde Amnesia – inability to create new memories Loss of Explicit Memory but not Implicit memories Examples: Clive wearing 50 1st dates Show 50 1st dates and Clive Wearing Anterograde Amnesia – lose explicit memories, but not implicit. Still have an unconscious capacity for learning
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Exceptionally clear memories of emotionally significant events are called
Sensory Memories Flashbulb Memories State Dependent Memories Mood Congruent Memories Procedural Memories 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
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Remembering how to solve a jigsaw puzzle without any conscious recollection that one can do so best illustrates ________ memory. Flashbulb Sensory Implicit Explicit Semantic 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
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The increase in synaptic firing potential that contributes to memory formation is known as
Explicit memory Implicit memory Long-term potentiation Serial position effect Infantile amnesia 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
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Retrieval Recall Recognition
you must retrieve the information from your memory fill-in-the blank or essay tests you must identify the target from possible targets multiple-choice tests Recall = fewest retrieval ques. Name the 7 Dwarfs Recognition – more retrieval cues are given Pick out of a list of names the 7 Dwarfs FRQ’s Identifying potential suspects in a police line up is recall Eyewitnesses of a crime = recall
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Recall Who is this handsome fellow?
What cues did you use to identify celebs. Why are some difficult to identify—hair color/length, amount, plastic surgery, facial injuries, weight gain/loss
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Recognition A. Brad Pitt B. Gordon Ramsay C. Ryan Seacrest
D. Mike “The Situation” Sorentino Ryan Seacrest
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Recall Who is this sweet-looking girl?
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Recognition A. Madonna B. Katy Perry C. Jenna Elfman
D. Jennifer Aniston Kate Perry
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Recall Who is this?
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Recognition A. Jennifer Lopez B. Eva Longoria C. Fergie
D. Nicole "Snooki" Polizzi Fergie
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Ways to help you retrieve info
Relearning – learning material for the second time, saves time. Example: Taking Psych in college should save you time for going to football games Retrieval Cues – anchor points used to access target info for retrieval later Example: Mnemonics, words, events places , emotions that trigger memory Priming – unconscious activation of associations in memory Example: See a rabbit and asked to spell hair, you spell hare Words events places and emotions that trigger our memory of the past. The more you have, the better the chance you have at finding a route to the memory Discovering that words you heard underwater are better recalled underwater illustrates the value of retrieval cues Priming – almost unconsious activation of particular associations in memory Priming facilitates retrieval cues Reading a romantic novel brings back memories of some experiences with an old boyfriend Hearing the word rabbit and asked to spell h-a-i-r may spell hare Watching a scary movie may lead to believe the noise you just heard was a burgler or to recall an event when your house was broken into both = priming Smell of freshly baked cookies awakens memories of early childhood events
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The Context Matters!!! Mood Congruent Memory – recalling memories consistent with current mood Example: When you break up with your girlfriend you think about all the other times you’ve been dumped State Dependent Memory – learning that takes place in one physiological or situational "state" is generally better remembered later in a similar physiological state or situational state Example: info learned when person is drunk is better recalled when person is drunk Déjà vu – eerie sense that you’ve experienced something before Example: When I saw the play Billy Elliot I had déjà vu …I thought I had seen it before Context effects – context where you experience something can prime your memory retrieval Need to sharpen my pencil, go down stairs and forget why. Go back up and you remember Words heard underwater were later recalled better underneath Déjà vu – eerie feeling you’ve experienced something before Example – billy elliot 3 Theories: Cues from current experience may subconsciously trigger an earlier experience – happens most commonly to well-educated imaginative adults, especially when stressed. Moderately similar to other events Dual processing – a signal from two track mind is delayed feeling like a repeat of an earlier one, creating an illusion that we are reexperiencing Don’t pay attention to the details around us State dependent – recall better when in same state ie drunk, sober (when drunk, memory is disrupted, so don’t remember well at all) Mood congruent – emotions that accompany good or bad events become retrieval cues Feeling jealous of Suzy getting an A in AP Psych you might also remember your girlfriend flirting with another guy. cues in a new situation can cause us to retrieve many memories encoded in a similar context, producing the feeling of déjà vu. Mood-congruent memories can also be explained through context cues, because the mood we are in when we encode something is part of the context for that memory, making the memory easier to recall when we regain the context of that mood. Study for a test in the classroom –even in desks they sit in State-dependent – does caffeine and sugar when studying effect memory…should you consume the same amount before taking a test?
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Mood-congruent memory refers to the effect of emotional states on the process of
Repression Encoding Storage Retrieval Relearning 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
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The eerie sense of having previously experienced a situation is known as
Implicit memory Serial position effect Mood congruent memory Source amnesia Déjà vu 18 of 23
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Forgetting Encoding Failures Storage Decay Retrieval Failures
Forgetting is failure to encode, store and retrieve information
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Forgetting Schacter’s sevens sins of memory Sins of Forgetting
Absent-mindedness – encoding failure (inattention to detail) Transience – storage decay Blocking – inaccessibility to stored info Sins of distortion Misattribution – confusing the source Suggestibility – linger effects of misiformation Bias – belief colored recollections Sin of intrusion Persistence – unwanted memories 7 ways our memories fail us Absent mindedness – inattention to detail (our mind is somewhere else when we lay down our pencil, textbook) Transience – storage decay over time (unused information –spanish, classmates names fades) Blocking – inaccessibility to stored info (know someones name but can’t get it out) Misattribution – confusing the source of info (remembering a dream as a n actually happing, putting words into someone elses mouth) Suggestability – lingering effects of misinformation (a leading questions –did mr. X abuse you---later become a child’s false memory) Bias – belief colored recollections (in a fight with a friend, may color our recalled initial feelings) Persistence – unwanted memories (being haunted by an embarrasing or stressful memory)
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Encoding Failure Example – You can’t remember a person’s name that you were just introduced to because you weren’t paying attention What should you do to prevent an encoding failure? Selective attention – can only attend to a few sights and sounds – never makes it into long term memory Age – brain areas less responsive First penny is the correct one What should you do to prevent an encoding failure – engage in effortful processing
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Storage Decay Ebbinghaus Curve
Ebbinghaus assessed the impact of rehearsal and retention on relearning Loss of foreign language is info lost in storage Apply the Ebbinghause curve to Psych class I will forget most psychological concepts soon after learning them, but the information I recall after that immediate drop will be retained for years. How well we remember depends on how long ago we learned it. Ebbinghaus discovered that the rate at which we forget newly learned information is initially rapid, then slows down Measured how much info could be retained when relearning a list, covering 20 minutes to 30 days later Retention of info quickly drops, then levels off with increased passing of time Reasons : Gradual fading of the physical memory trace Accumulation of other learning disrupts retrieval Relearning a second language is much quicker the second time Speed of relearning confirms that information is stored and accessible Apply the Ebbinghaus curve to Psych Class
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Retrieval Failure Retrieval Failure is when stored info can’t be accessed I forget a students name, my poor memory is a result of a retrieval failure Older people have more difficulty with retrieval failures
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Forgetting Retroactive Interference: new information blocks out old information. Example: Getting a new bus number and forgetting old bus number. Proactive Interference: old information blocks out new information. Example: Calling your new girlfriend by old girlfriends name. PORN Positive Transfer – old info helps you learn new info Example: learning Spanish helps you learn French Both are disruptive effect on learning Disruptive effect of prior learning on new information is proactive interference Disruptive effect of new learning on old information is retroactive interference Old girlfriend’s phone number interferes with remembering new girlfriends phone number Former students names (brothers or sisters) interfere with names of new ones (Khory and Kollyn Crenshaw) (Dillan and Brandon Hill) Combo for new lock interferes with old Old password interferes with old Positive transfer – old info can help us learn something new –latin helps learn french. Forgetting occurs more rapidly after being awake and involved in other activities 1 hour before a nights sleep is a good time to commit information to memory, but not the information seconds before sleep –seldom remembered Forgetting occurs least rapidly after sleeping Inability to remember things seconds before we go to sleep is due to an encoding failure
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Motivated Forgetting Motivated Forgetting – revising past memories
Repression – (Freud’s Psychoanalytic Theory) A defense mechanism that banishes painful memories from consciousness to minimize anxiety Example: Woman with unexplained fear of running water had repressed a memory of almost drowning Motivated Forgetting – people revise their own history ….our memories are unreliable (self-serving)…there is a reason to forget Gamblers forgetting how much money they really lost Forgetting how many cookies you really ate Repression – a self-censored memory caused by a retrieval failure Minimize anxiety and protect self-concept. Memory will linger and later be retrieved by some cue or during therapy. Repression rarely occurs as it is difficult to forget emotional material We don’t intentionally forget emotional memories…mind wide open our memories of traumatic events are replayed over and over Remembering all of your teachers, but forgetting Mrs. Joseph because you flunked her class
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Constructive Memory Constructed memory - a created memory, altered when encoded or retrieved. Misinformation effect Imagination effect Source amnesia As we retrieve memories from our memory bank, we often alter them based on past experiences and our current expectations. This best illustrates memory construction Memories are not always what they seem. Sometimes construct our memories when we encode them 3 causes of memory construction: misinformation effect, imagination effect, source amnesia Any leading question
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Constructive Memory Elizabeth Loftus
Misinformation Effect – incorporating misleading info into a memory Example: misrecalling a yield sign as a stop sign Imagination Effect/Inflation – imagining nonexistent actions and events can create false memories Example: imagining that Solon beat Mentor, you may create a false memory (: Source Amnesia – retaining the memory of an event, but not the source Example: Someone told you that Solon beat Mentor, but you think you read it in the newspaper Example of constructive memories 1.Misinformation – any leading question ie. How fast were the cars going when they smashed into each other.—witness reported the accident as being more serious than it was. (reported seeing broken glass at the scene) Newspaper article of drunk driver, witnesses remember that he was travelling more recklessly than he was In cross examination, Attorney’s ask misleading questions to distort a witnesses recall on the stand Exaggerating how difficult the Psych exam was to a friend, you later believe that was as difficult as you said it was 2.Imagination effect – imagining non existent events Students asked to imagine breaking a window as a child more likely to later recall a memory as if it had really happened Occurs because visualizing something and actually perceiving it activate the same areas of the brain People who have vivid imaginations are more likely to have false memories - remembering how you won a stuffed animal at Geauga Lake – parents tell you it never happened 3. Source amnesia - Mr. Science - came to class and stories told about him. Many children remembered what Mr. Science had done with them incorporated memories from the book Dream you were robbed on vacation. Years later you recall it as if it actually happened Seeing many pictures of a place, you recall that you actually saw it. Someone tells you that eating chocolate is good for memory, you later recall it as fact (read it somewhere) Compared with false memories, true memories contained detailed information
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Discerning True and False Memories
Memory studies – real vs. false Eye witness testimony New Zealand students showed people faces with computer blended expressions, such as the angry/happy face above were asked to imagine and explain why the person was feeling angry or happy. Those who later recalled the face recalled it angrier if asked do why the person was feeling angry. Compared with false memories, real memories contain vivid detail. Memories of imagined experiences are more restricted to gist, but may be more enduring. Activity on Sleep list Memory construction explains why 79%/200 convicts exonerated by DNA, were misjudged on faulty eyewittness testimony (Ron Cotton Video) By incorporating errors originating from a hypnotist's leading questions, “hypnotically refreshed” memories of crimes often illustrate misinformation effect Those who are eager to use hypnosis to facilitate eyewitness recollections of the details of a crime should first be warned of the dangers of misinformation effect When we fall in love, we tend to overestimate how much we liked our partner when we first began dating. This best illustrates the dynamics of memory construction Karl and Dee had a joyful wedding ceremony. After their painful divorce, however, they began to remember the wedding as a somewhat hectic and unpleasant event. Their recollections best illustrate the nature of memory construction When asked to recall their attitudes of 10 years ago regarding marijuana use, people offer recollections closer to their current views than to those they actually reported a decade earlier. This best illustrates Donald Thompson, an Australian psychologist, was an initial suspect in a rape case. The rape victim confused her memories of Thompson and the actual rapist because she had seen Thompson's image on TV shortly before she was attacked. The victim's false recollection best illustrates source amnesia Police interrogators have been trained to ask less suggestive and more effective questions to avoid
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Children’s Eyewitness Recall
Children’s memories of abuse Suggestibility Compared with adults, children are more susceptible to misinformation effect To gain accurate eyewitness testimony from children, interviewers must use neutral words for children to understand In one study, children were periodically asked whether they remembered going to the hospital with a mousetrap on their finger. This experiment best illustrated the dynamics of memory construction When children are interviewed about their recollections of possible sexual abuse, their reports are especially credible if involved adults have not discussed the issue with them prior to the interview. Adults who have trouble remembering incidences of childhood sexual abuse have often been led by therapists to believe that their memory difficulties are due to repression Incest survivors who lack conscious memories of their sexual abuse may sometimes be told that they are simply in a stage of “denial” and “repression.” This explanation for their lack of abuse memories emphasizes Psychologists on both sides of the controversy regarding reports of repressed and recovered memories of childhood sexual abuse agree that we commonly recover memories of long-forgotten negative as well as positive events. Mrs. Ramos claims to remember being sexually abused by her father when she was less than a year old. Memory experts are most likely to doubt the reliability of her memory due to their awareness of infantile amnesia Participants in one experiment were given entirely fabricated accounts of an occasion in which they had been lost in a shopping mall during their childhood. Many of these participants later falsely recollected vivid details of the experience as having actually occurred. This experiment best illustrated misinformation effect
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Repressed or Constructed Memories of Abuse?
Areas of agreement Sexual abuse happens Injustice happens Forgetting happens Recovered memories are incomplete Memories before 3 years are unreliable Hypnotic memories are unreliable Memories can be emotionally upsetting Happens more often than we once supposed…infants nervous systems are not fully formed making memory formation during infancy and toddlerhood difficult, if not impossible Some falsely accused; some evaded Some abused were either very young or may not have understood meaning of their experience—circumstance under which forgetting is common Cued by a remark or an experience we recover memories of long forgotten events both pleasant and unpleasant People do not reliably uncover memories from 1st 3 years Age regressed hypnotized subjects incorporate suggestions into memories Emotionally upsetting memories aren’t easily forgotten
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Improving Memory Techniques
Study repeatedly Make the material meaningful Activate retrieval cues Use mnemonic devices Minimize interference Sleep more Test your own knowledge, both to rehearse it and to help determine what you do not yet know Speed-reading complex material yields little long-term retention because it inhibits rehearsal Repeating someone's name several times shortly after being introduced to that person is an effective strategy for rehearsal Studying psychological concepts while riding the bus, walking to lunch, and waiting for class to begin will improve your memory of the concepts by taking advantage of spacing effect Mentally re-creating the mood that accompanied your original learning of course material is an effective way to activate retrieval cues Answering practice test questions about text material you have studied is a useful strategy for becoming aware of what you don’t know Forming many associations between new course material and what you already know is an effective way to build a network of retrieval cues People should avoid back-to-back study times for learning Spanish and French vocabulary in order to minimize interference By taking text and class notes in your own words you are improving memory by encoding symantically
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The misinformation effect best illustrates the dynamics of
Automatic processing Memory construction Repression Proactive Interference Mood-congruent memory 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
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Proactive interference Infantile amnesia Transience
As we retrieve memories from our memory bank, we often alter them based on past experiences and our current expectations. This best illustrates Proactive interference Infantile amnesia Transience Memory construction Repression 0 of 30
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Retroactive interference Mood congruent memory Proactive interference
Professor Maslova has so many memories of former students that she has difficulty remembering the names of new students. The professor's difficulty best illustrates Retroactive interference Mood congruent memory Proactive interference Spacing effect Source amnesia 0 of 30
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Self-reference effect Mood congruent memory Infantile amnesia
As a child, Andre dreamed that he was chased and attacked by a ferocious dog. Many years later, he mistakenly recalled that this had actually happened to him. Andre's false recollection best illustrates Self-reference effect Mood congruent memory Infantile amnesia Repression Source amnesia 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
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State dependent memory Mood congruent memory Misinformation effect
An attorney uses misleading questions in an attempt to distort a court witness' recall of a previously observed crime. This best illustrates State dependent memory Mood congruent memory Misinformation effect Priming Infantile amnesia 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
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