Retrieval Failure Although the information is retained in the memory store, it cannot be accessed. Tip-of-the-tongue (TOT) is a retrieval failure phenomenon.

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Retrieval Failure Although the information is retained in the memory store, it cannot be accessed. Tip-of-the-tongue (TOT) is a retrieval failure phenomenon. Given a cue (What makes blood cells red?) the subject says the word begins with an H (hemoglobin).

Interference Learning some new information may disrupt retrieval of other information. OBJECTIVE 21| Contrast proactive and retroactive interference, and explain how they can cause retrieval failure.

Retroactive Interference Sleep prevents retroactive interference. Therefore, it leads to better recall.

Motivated Forgetting Motivated Forgetting: People unknowingly revise their memories. Repression: A defense mechanism that banishes anxiety-arousing thoughts, feelings, and memories from consciousness. OBJECTIVE 22| Summarize Freud's concept of repression, and state whether this view is reflected in current memory research. Culver Pictures Sigmund Freud

Why do we forget? Forgetting can occur at any memory stage. We filter, alter, or lose much information during these stages.

Memory Construction While tapping our memories, we filter or fill in missing pieces of information to make our recall more coherent. Misinformation Effect: Incorporating misleading information into one's memory of an event.

Misinformation and Imagination Effects Eyewitnesses reconstruct their memories when questioned about the event. OBJECTIVE 23| Explain how misinformation and imagination can distort our memory of an event. Depiction of the actual accident.

Misinformation Group A: How fast were the cars going when they hit each other? Group B: How fast were the cars going when they smashed into each other?

Memory Construction A week later they were asked: Was there any broken glass? Group B (smashed into) reported more broken glass than Group A (hit).

Source Amnesia Source Amnesia: Attributing an event to the wrong source that we experienced, heard, read, or imagined (misattribution). OBJECTIVE 24| Describe source amnesia’s contributions to false memories.

Discerning True & False Memories Just like true perception and illusion, real memories and memories that seem real are difficult to discern. OBJECTIVE 25| List some differences and similarities between true and false memories. © Simon Niedsenthal When students formed a happy or angry memory of morphed (computer blended) faces, they made the (computer assisted) faces (a), either happier or (b) angrier.

False Memories Repressed or Constructed? Some adults actually do forget childhood episodes of abuse. False Memory Syndrome A condition in which a person’s identity and relationships center around a false but strongly believed memory of a traumatic experience, which is sometimes induced by well-meaning therapists.

Children’s Eyewitness Recall Children’s eyewitness recall can be unreliable if leading questions are posed. However, if cognitive interviews are neutrally worded, the accuracy of their recall increases. In cases of sexual abuse, this usually suggests a lower percentage of abuse. OBJECTIVE 26| Give arguments supporting and rejecting the position that very young children's reports are reliable.

Are memories of abuse repressed or constructed? Many psychotherapists believe that early childhood sexual abuse results in repressed memories. However, other psychologists question such beliefs and think that such memories may be constructed. OBJECTIVE 27| Discuss the controversy over reports of repressed and recovered memories of childhood sexual abuse.

Constructed Memories Loftus’ research shows that if false memories (lost at the mall or drowned in a lake) are implanted in individuals, they construct (fabricate) their memories. Don Shrubshell

Consensus on Childhood Abuse Leading psychological associations of the world agree on the following concerning childhood sexual abuse: Injustice happens. Incest and other sexual abuse happens. People may forget. Recovered memories are commonplace. Recovered memories under hypnosis or drugs are unreliable. Memories of things happening before 3 years of age are unreliable. Memories, whether real or false, are emotionally upsetting.

Improving Memory Study repeatedly to boost long-term recall. Spend more time rehearsing or actively thinking about the material. Make material personally meaningful. Use mnemonic devices: associate with peg words — something already stored make up a story chunk — acronyms OBJECTIVE 28| Explain how an understanding of memory can contribute to effective study techniques.

Improving Memory Activate retrieval cues — mentally recreate the situation and mood. Recall events while they are fresh — before you encounter misinformation. Minimize interference: Test your own knowledge. Rehearse and then determine what you do not yet know. © LWA-Dann Tardiff/ Corbis