Schacter 6e Canadian Psychology Lectureslides Chapter 6 PDF - Memory
Document Details
Schacter | Gilbert | Nock | Johnsrude
Tags
Summary
This document is Chapter 6 of the 6th edition of Schacter, Gilbert, Nock, and Johnsrude's Canadian Psychology textbook and provides an overview of memory, including encoding, storage, retrieval, and long-term memory.
Full Transcript
Chapter 6 Memory Copyright © 2023 by Macmillan Learning. All rights reserved PSYCHOLOGY Schacter | Gilbert | Nock | Johnsrude Canadian Sixth Edition Chapter Outline What Is Memory? ...
Chapter 6 Memory Copyright © 2023 by Macmillan Learning. All rights reserved PSYCHOLOGY Schacter | Gilbert | Nock | Johnsrude Canadian Sixth Edition Chapter Outline What Is Memory? Encoding: Transforming Perceptions Into Memories Storage: Maintaining Memories Over Time Retrieval: Bringing Memories to Mind Copyright © 2023 by Macmillan Learning. All rights reserved Forms of Long-Term Memory: More Than One Kind Memory Failures: The Seven “Sins” of Memory PSYCHOLOGY Schacter | Gilbert | Nock | Johnsrude Canadian Sixth Edition What Is Memory? Memory: Ability to store and retrieve information over time Three key functions of memory Encoding Storage Copyright © 2023 by Macmillan Learning. All rights reserved Retrieval PSYCHOLOGY Schacter | Gilbert | Nock | Johnsrude Canadian Sixth Edition Digit Memory Test How many digits can you remember? Copyright © 2023 by Macmillan Learning. All rights reserved PSYCHOLOGY Schacter | Gilbert | Nock | Johnsrude Canadian Sixth Edition Encoding: Transforming Perceptions Into Memories Memories are made by combining information we already have with new information coming in. Memories are constructed. There are three major ways to encode. Copyright © 2023 by Macmillan Learning. All rights reserved Semantic encoding Visual imagery encoding Organizational encoding PSYCHOLOGY Schacter | Gilbert | Nock | Johnsrude Canadian Sixth Edition Semantic Encoding Semantic encoding Process of relating new information in a meaningful way to knowledge that is already stored in memory Uniquely associated with increased activity in Copyright © 2023 by Macmillan Learning. All rights reserved the lower left part of the frontal lobe and the inner part of the left temporal lobe PSYCHOLOGY Schacter | Gilbert | Nock | Johnsrude Canadian Sixth Edition Brain Activity During Different Types of Judgements Evidence from fMRI studies reveals that different parts of the brain are active during different types of judgements: (a) During semantic encoding, the lower-left frontal lobe is active. (b) During visual imagery Copyright © 2023 by Macmillan Learning. All rights reserved encoding, the occipital lobe is active. (c) During organizational encoding, the upper left frontal lobe is active. PSYCHOLOGY Schacter | Gilbert | Nock | Johnsrude Canadian Sixth Edition Seminal Encoding: Seminal Research Toronto researchers Fergus Craik and Endel Tulving presented participants with a series of words and asked them to make one of three types of judgements. Semantic judgements Rhyme judgements Case judgements Copyright © 2023 by Macmillan Learning. All rights reserved What did they find? PSYCHOLOGY Schacter | Gilbert | Nock | Johnsrude Canadian Sixth Edition Visual Imagery Encoding Visual imagery encoding Process of storing new information by converting it into mental pictures Visual imagery encoding produces neural changes in visual and memory networks that support enhanced memory performance. Smartphone app was used to provide successful training in visual imagery to encode new Copyright © 2023 by Macmillan Learning. All rights reserved information. Why did it work so well? PSYCHOLOGY Schacter | Gilbert | Nock | Johnsrude Canadian Sixth Edition Organizational Encoding Organizational encoding Process of categorizing information according to relationships among series of items Current experiences are organized by segmenting the ongoing flow of events into Copyright © 2023 by Macmillan Learning. All rights reserved meaningful units. Sorting items into categories is effective way to enhance subsequent recall of those items. PSYCHOLOGY Schacter | Gilbert | Nock | Johnsrude Canadian Sixth Edition Organizing Words Into a Hierarchy Copyright © 2023 by Macmillan Learning. All rights reserved All three forms of encoding can be used as mnemonics. PSYCHOLOGY Schacter | Gilbert | Nock | Johnsrude Canadian Sixth Edition Encoding of Survival-Related Information Based on Darwin’s principle of natural selection, memory mechanisms that aid survival should be passed down. In an experiment, three different encoding tasks were used. Survival encoding yielded better memory, perhaps Copyright © 2023 by Macmillan Learning. All rights reserved drawing from elaborative, visual imagery, and organizational encoding. Superior recall is also observed for scenarios that involve planning, but not survival. PSYCHOLOGY Schacter | Gilbert | Nock | Johnsrude Canadian Sixth Edition Survival-Related Information Enhances Later Recall Copyright © 2023 by Macmillan Learning. All rights reserved PSYCHOLOGY Schacter | Gilbert | Nock | Johnsrude Canadian Sixth Edition Storage: Maintaining Memories Over Time Three kinds of storage are distinguished primarily by amount of time over which a memory is retained. Sensory storage: Storage that holds sensory information for a few seconds or less Iconic memory: Fast-decaying store of visual Copyright © 2023 by Macmillan Learning. All rights reserved information Echoic memory: Fast-decaying store of auditory information PSYCHOLOGY Schacter | Gilbert | Nock | Johnsrude Canadian Sixth Edition Iconic Memory Test Copyright © 2023 by Macmillan Learning. All rights reserved PSYCHOLOGY Schacter | Gilbert | Nock | Johnsrude Canadian Sixth Edition The Flow of Information Through the Memory System Copyright © 2023 by Macmillan Learning. All rights reserved PSYCHOLOGY Schacter | Gilbert | Nock | Johnsrude Canadian Sixth Edition Short-term storage and Working Memory Short-term memory (STM): Storage that holds nonsensory information for more than a few seconds, but less than a minute Rehearsal Chunking Working memory Copyright © 2023 by Macmillan Learning. All rights reserved PSYCHOLOGY Schacter | Gilbert | Nock | Johnsrude Canadian Sixth Edition Rehearsal and Chunking Strengthen Memory Rehearsal Process of keeping information in short-term memory by mentally repeating it Serial position effect First few and last few items in a series are more likely to be recalled than the items in the middle. Recency effect Copyright © 2023 by Macmillan Learning. All rights reserved Chunking Combining small pieces of information into larger clusters or chunks that are more easily held in short- term memory PSYCHOLOGY Schacter | Gilbert | Nock | Johnsrude Canadian Sixth Edition The Decline of Short-Term Memory A 1959 experiment showed how quickly short-term memory fades without rehearsal. Memory for the consonant strings declined rapidly, from approximately 80% after a 3- second delay to virtually nothing after a 20-second delay. Copyright © 2023 by Macmillan Learning. All rights reserved These results suggest that information can be held in the short-term memory store for about 15 to 20 seconds. PSYCHOLOGY Schacter | Gilbert | Nock | Johnsrude Canadian Sixth Edition Serial Position Effect Which of the books in the Harry Potter series are you likely to most easily recall, according to the serial position effect? Serial position effect Copyright © 2023 by Macmillan Learning. All rights reserved Primacy effect Recency effect PSYCHOLOGY Schacter | Gilbert | Nock | Johnsrude Canadian Sixth Edition Working Memory Model Working memory stores and manipulates information. Working memory model Includes a limited-capacity memory system Refers to active maintenance of information in short-term storage Involves two subsystems whose information is coded by Copyright © 2023 by Macmillan Learning. All rights reserved the episodic buffer Visio-spatial sketchpad Phonological loop Suggests a link between this part of the working memory system and the ability to learn language PSYCHOLOGY Schacter | Gilbert | Nock | Johnsrude Canadian Sixth Edition A Refined Model of Working Memory Copyright © 2023 by Macmillan Learning. All rights reserved PSYCHOLOGY Schacter | Gilbert | Nock | Johnsrude Canadian Sixth Edition Working Memory and Cognition Neurological damage to phonological loop subsystem of working memory Related to problems holding on to strings of digits and letters for a few seconds; difficulty learning novel words Measure of working memory capacity Predicted individual differences in self-reported compliance with social distancing guidelines (COVID) Copyright © 2023 by Macmillan Learning. All rights reserved Brain-imaging studies Indicated children’s low scores on working memory tasks related to new learning and classroom performance difficulty PSYCHOLOGY Schacter | Gilbert | Nock | Johnsrude Canadian Sixth Edition Maintaining Memories Over Time Episodic buffer Automatically combines separate items into an integrated whole Plays a role in learning to recognize words Integrates other kinds of sensory information Improvements are seen in several areas. Copyright © 2023 by Macmillan Learning. All rights reserved Working memory Math tasks Research is still in early stages. PSYCHOLOGY Schacter | Gilbert | Nock | Johnsrude Canadian Sixth Edition Long-Term Storage Long-term memory (LTM) Holds information for hours, days, weeks, or years Has no known capacity limits People can recall items from long-term memory even if they haven’t thought of them for years. Copyright © 2023 by Macmillan Learning. All rights reserved Researchers have found that even 50 years after graduation, people can accurately recognize about 90% of their high school classmates from yearbook photographs. PSYCHOLOGY Schacter | Gilbert | Nock | Johnsrude Canadian Sixth Edition The Hippocampus as Index: Linking Pieces Into One Memory (part 1) Case of HM who had his hippocampus (temporal lobe) removed to prevent seizures Had STM, but no LTM Evidence from hippocampal cell firing patterns in mice supports this idea. Anterograde amnesia: Inability to transfer new information from the short-term store into the long-term store Copyright © 2023 by Macmillan Learning. All rights reserved Retrograde amnesia: Inability to retrieve information that was acquired before a particular date, usually the date of an injury or operation PSYCHOLOGY Schacter | Gilbert | Nock | Johnsrude Canadian Sixth Edition The Hippocampus Patient Copyright © 2023 by Macmillan Learning. All rights reserved PSYCHOLOGY Schacter | Gilbert | Nock | Johnsrude Canadian Sixth Edition The Hippocampus as Index: Linking Pieces Into One Memory (part 2) Consolidation: Process by which memories become stable in the brain Stabilizes memories Reconsolidation: Memories can become vulnerable to disruption when they are Copyright © 2023 by Macmillan Learning. All rights reserved recalled, requiring them to become consolidated again. PSYCHOLOGY Schacter | Gilbert | Nock | Johnsrude Canadian Sixth Edition Disrupting Reconsolidation and Traumatic Memory Reduction The Boston Marathon bombings produced detailed and disturbing memories in people at or near the site of the bombings. Research shows that the Copyright © 2023 by Macmillan Learning. All rights reserved amount of detail in those memories can be reduced by interfering with their reconsolidation. PSYCHOLOGY Schacter | Gilbert | Nock | Johnsrude Canadian Sixth Edition Memories, Neurons, and Synapses Connections between neurons are strengthened by their communication, making communication easier the next time. Provides neurological basis for long-term memory Sea slug Aplysia Long-term potentiation (LTP): Process whereby communication across the synapse between neurons Copyright © 2023 by Macmillan Learning. All rights reserved strengthens the connection, making further communication easier Has a number of properties that indicate to researchers the important role it plays in long-term memory storage PSYCHOLOGY Schacter | Gilbert | Nock | Johnsrude Canadian Sixth Edition Hot Science: Can Sleep Enhance Learning? Yes! More research needed to determine if sleep plays an active role in memory consolidation or interference prevention. Targeted memory reactivation (TMR) can enhance memory consolidation. Effects are stronger for associations not well learned initially. TMR learning effects related to REM sleep in foreign language vocabulary learning. Copyright © 2023 by Macmillan Learning. All rights reserved TMR effects are statistically significant across experiments, but only when TMR is administered during stage 2 and slow-wave sleep. PSYCHOLOGY Schacter | Gilbert | Nock | Johnsrude Canadian Sixth Edition Retrieval Cues Information is sometimes available in memory even when momentarily inaccessible. Retrieval cues: External information Copyright © 2023 by Macmillan Learning. All rights reserved associated with stored information that helps bring that information to mind PSYCHOLOGY Schacter | Gilbert | Nock | Johnsrude Canadian Sixth Edition Providing Cues External context provides cues. Encoding specificity principle: Idea that a retrieval cue can serve as an effective reminder when it helps recreate the specific way in which information was initially encoded Inner states also provide cues. Copyright © 2023 by Macmillan Learning. All rights reserved State-dependent retrieval: Tendency for information to be better recalled when the person is in the same state during encoding and retrieval PSYCHOLOGY Schacter | Gilbert | Nock | Johnsrude Canadian Sixth Edition Matching Encoding and Retrieval Contexts Improve Recall. Transfer-appropriate processing: Proposes memory is likely to transfer from one situation to another when encoding and retrieval contexts of the situations match Cognitive Interview (CI): Developed to Copyright © 2023 by Macmillan Learning. All rights reserved enhance the memory of eyewitnesses for everyday experiences; context reinstatement; contact tracing (COVID-19) PSYCHOLOGY Schacter | Gilbert | Nock | Johnsrude Canadian Sixth Edition Consequences of Retrieval (part 1) Retrieval can strengthen a retrieved memory (especially long term); it can also cause forgetting. Retrieval-induced forgetting: Process by which retrieving an item from long-term memory impairs subsequent recall of related Copyright © 2023 by Macmillan Learning. All rights reserved items (frontal lobe suppresses competing information) PSYCHOLOGY Schacter | Gilbert | Nock | Johnsrude Canadian Sixth Edition Memory Testing Benefits Long-Term Retention Study condition results in a slightly higher recall with a 5- minute retention interval. Results change dramatically with retention intervals of 2 days and 1 week. At these longer delays, the Copyright © 2023 by Macmillan Learning. All rights reserved study–test condition yields much higher recall levels than the study–study condition (Roediger & Karpicke, 2006). PSYCHOLOGY Schacter | Gilbert | Nock | Johnsrude Canadian Sixth Edition Consequences of Retrieval (part 2) Retrieval can improve subsequent memory. Retrieval can impair subsequent memory. Copyright © 2023 by Macmillan Learning. All rights reserved Retrieval can change subsequent memory. PSYCHOLOGY Schacter | Gilbert | Nock | Johnsrude Canadian Sixth Edition PET Scans of Successful and Unsuccessful Recall Copyright © 2023 by Macmillan Learning. All rights reserved PSYCHOLOGY Schacter | Gilbert | Nock | Johnsrude Canadian Sixth Edition Forms of Long-Term Memory: More Than One Kind Memories can be broken down into two types. Explicit memory: Act of consciously or intentionally retrieving past experiences Implicit memory: Influence of past Copyright © 2023 by Macmillan Learning. All rights reserved experiences on later behaviour, even without an effort to remember them or an awareness of the recollection PSYCHOLOGY Schacter | Gilbert | Nock | Johnsrude Canadian Sixth Edition Forms of Long-Term Memory Copyright © 2023 by Macmillan Learning. All rights reserved PSYCHOLOGY Schacter | Gilbert | Nock | Johnsrude Canadian Sixth Edition Implicit Memory Procedural memory: Gradual acquisition of skills as a result of practice, or “knowing how” to do things Things remembered are automatically translated into actions. Brain regions outside hippocampal area are involved. Priming: Enhanced ability to think of a stimulus as a result of a recent exposure to the stimulus; less cortical activation (perceptual and conceptual Copyright © 2023 by Macmillan Learning. All rights reserved priming) Priming makes some information more accessible. Things remembered are automatically translated into actions. PSYCHOLOGY Schacter | Gilbert | Nock | Johnsrude Canadian Sixth Edition Long-Term Priming of Visual Objects Participants who viewed drawings of common objects and 17 years later were given a test in which they tried to identify the objects from fragmented drawings (longitudinal group) showed a strong priming effect. Copyright © 2023 by Macmillan Learning. All rights reserved By contrast, participants who had not seen the drawings 17 years earlier (control group) showed nonsignificant priming (Mitchell, 2006). PSYCHOLOGY Schacter | Gilbert | Nock | Johnsrude Canadian Sixth Edition Procedural Memory and Priming Do Not Rely on the Hippocampus Priming is associated with reduced activity in various cortex regions that are activated when performing unprimed tasks. Neuroimaging studies also indicate that different brain systems are involved in two Copyright © 2023 by Macmillan Learning. All rights reserved distinct forms of priming. Perceptual priming Conceptual priming PSYCHOLOGY Schacter | Gilbert | Nock | Johnsrude Canadian Sixth Edition Primed and Unprimed Processing of Stimuli Priming is associated with reduced activation levels in the cortex on several different tasks. Copyright © 2023 by Macmillan Learning. All rights reserved PSYCHOLOGY Schacter | Gilbert | Nock | Johnsrude Canadian Sixth Edition Explicit Memory: Semantic and Episodic Semantic memory: Network of associated facts and concepts that make up our general knowledge of the world Episodic memory: Collection of past personal experiences that occurred at a Copyright © 2023 by Macmillan Learning. All rights reserved particular time and place Involves mental time travel Contributes to imagination and creativity PSYCHOLOGY Schacter | Gilbert | Nock | Johnsrude Canadian Sixth Edition Episodic Memory Episodic memory Helps to envision personal futures through divergent creative thinking Allows combination of elements of past experiences in new ways to mentally enable different versions of what might happen Divergent creative thinking Generates creative ideas by combining different types of information in new ways Copyright © 2023 by Macmillan Learning. All rights reserved AUT Coupling between core and executive networks is key feature of divergent creative thinking. TMS impaired performance occurred on both the AUT and a task that involved imagining future experiences. PSYCHOLOGY Schacter | Gilbert | Nock | Johnsrude Canadian Sixth Edition Remembering the Past and Imagining the Future Depend on a Common Core Network of Brain Regions Copyright © 2023 by Macmillan Learning. All rights reserved PSYCHOLOGY Schacter | Gilbert | Nock | Johnsrude Canadian Sixth Edition A World of Difference: Do We All Reexperience Our Personal Pasts? Severely deficient autobiographical memory (SDAM): Otherwise, high-functioning people cannot vividly reexperience past events, even though they know they happened. Structural MRI scans showed reduced volume in the right hippocampus of SDAM individuals. Individual differences in the ability to recall episodic details Copyright © 2023 by Macmillan Learning. All rights reserved positively correlated with the volume of a particular subregion within the hippocampus known as DG/CA2/3 (dentate gyrus/cornu ammonis regions 2 and 3). Aphantasia PSYCHOLOGY Schacter | Gilbert | Nock | Johnsrude Canadian Sixth Edition Collaborative Memory: Social Influences on Remembering Collaborative memory: How people remember in groups Remembering as a collaborative group leads to greater recall than any single member of the group would achieve alone, but less than that produced by a nominal Copyright © 2023 by Macmillan Learning. All rights reserved group of individuals remembering on their own. Retrieval-induced forgetting Collaborative inhibition Social learning PSYCHOLOGY Schacter | Gilbert | Nock | Johnsrude Canadian Sixth Edition The Real World: Is GPS Hurting Our Memories? Is GPS hurting our memories? What do you think? Reliance on GPS produced impaired memory for the route travelled during a virtual-navigation task (Gardony and colleagues). Greater reliance on navigation and memory abilities can yield increased volume in key brain region that supports those abilities (Eleanor Maguire and colleagues/London taxi driver study). People who rely on GPS are likely to remember less about their Copyright © 2023 by Macmillan Learning. All rights reserved Soho tour than those that did not rely on GPS (Javadi and colleagues). More reliance on GPS can produce impairment of spatial memory abilities (Dahmani and Bohbot). PSYCHOLOGY Schacter | Gilbert | Nock | Johnsrude Canadian Sixth Edition Memory Failures: Transience Transience: Forgetting what occurs with passage of time; rapid forgetting Memory fades more quickly at first, then more slowly over time. Involves a switch from specific to more general memories Copyright © 2023 by Macmillan Learning. All rights reserved Common types of forgetting Retroactive interference Proactive interference Infantile or childhood amnesia PSYCHOLOGY Schacter | Gilbert | Nock | Johnsrude Canadian Sixth Edition The Curve of Forgetting Hermann Ebbinghaus measured his retention at various delay intervals after studying lists of nonsense syllables. Retention was measured in percent savings, the percentage of time needed to relearn the list compared to the time needed to learn it initially. Copyright © 2023 by Macmillan Learning. All rights reserved PSYCHOLOGY Schacter | Gilbert | Nock | Johnsrude Canadian Sixth Edition Memory Failures: Absentmindedness Absentmindedness: Lapse in attention that results in memory failure There is less activity in the left frontal lobe when attention is divided. How do external aids such We don’t always remember to as Google affect impact remember. prospective memory? Copyright © 2023 by Macmillan Learning. All rights reserved Prospective memory: Remembering to do things in the future External reminders Intention offloading PSYCHOLOGY Schacter | Gilbert | Nock | Johnsrude Canadian Sixth Edition Memory Failures: Blocking Blocking: Failure to retrieve information that is available in memory even though you are trying to produce it Tip-of-the-tongue phenomenon Increase with injury and age Occurs especially often for names of people and Copyright © 2023 by Macmillan Learning. All rights reserved places PSYCHOLOGY Schacter | Gilbert | Nock | Johnsrude Canadian Sixth Edition Memory Failures: Memory Misattribution Memory misattribution: Assigning a recollection or an idea to the wrong source Frontal lobe involved Correct memories can be attributed to wrong source. Source memory: Recall when, where, and how information was acquired Misattribution happens to us all, but it can be influenced by Copyright © 2023 by Macmillan Learning. All rights reserved culture. False recognition: Feeling of familiarity about something that hasn’t been encountered before Culture plays important role in shaping how memories are constructed. PSYCHOLOGY Schacter | Gilbert | Nock | Johnsrude Canadian Sixth Edition Memory Misattribution George Harrison made a memory misattribution when he thought that he had composed a melody that was actually created by someone else, and the mistake cost him nearly $9 million. Copyright © 2023 by Macmillan Learning. All rights reserved He still found reasons to smile, however. PSYCHOLOGY Schacter | Gilbert | Nock | Johnsrude Canadian Sixth Edition Memory Failures: Suggestibility Suggestibility: Tendency to incorporate misleading information from external sources into personal recollections People can develop false memories in response to suggestions. Visual imagery influence Copyright © 2023 by Macmillan Learning. All rights reserved Social pressures Accuracy or inaccuracy of childhood memories recalled during psychotherapy PSYCHOLOGY Schacter | Gilbert | Nock | Johnsrude Canadian Sixth Edition Memory Failures: Bias Bias: Distorting influences of present knowledge, beliefs, and feelings on recollection of previous experiences Consistency bias: Tendency to reconstruct the past to fit the present Fake news Higher percentage of “no” supporters reported false memory for about the ’yes” side Higher percentage of “yes” supporters reported false memory for about Copyright © 2023 by Macmillan Learning. All rights reserved the no” side Egocentric bias: Tendency to exaggerate the change between present and past in order to make ourselves look good in retrospect PSYCHOLOGY Schacter | Gilbert | Nock | Johnsrude Canadian Sixth Edition False Memories and Fake News Copyright © 2023 by Macmillan Learning. All rights reserved PSYCHOLOGY Schacter | Gilbert | Nock | Johnsrude Canadian Sixth Edition Memory Failures: Persistence Persistence: Intrusive recollection of events that we wish we could forget Often occurs after disturbing or traumatic events Emotional experiences better remembered than unemotional ones. Flashbulb memories: Detailed recollections of Copyright © 2023 by Macmillan Learning. All rights reserved when and where we heard about shocking events Amygdala involved in emotional memory PSYCHOLOGY Schacter | Gilbert | Nock | Johnsrude Canadian Sixth Edition The Amygdala’s Influence on Memory The amygdala, located next to the hippocampus, responds strongly to emotional events. Individuals with amygdala damage cannot remember emotional Copyright © 2023 by Macmillan Learning. All rights reserved events any better than nonemotional ones (Cahill & McGaugh, 1998). PSYCHOLOGY Schacter | Gilbert | Nock | Johnsrude Canadian Sixth Edition Are the Seven Sins Vices or Virtues? Each of the seven sins can cause trouble in our lives. However, each has an adaptive side. Sins should be viewed as the costs we pay Copyright © 2023 by Macmillan Learning. All rights reserved for the benefits of a memory that works well most of the time. PSYCHOLOGY Schacter | Gilbert | Nock | Johnsrude Canadian Sixth Edition Hot Science Memory Misattribution: When Accurate Inferences Produce Mistaken Recollection Associative inference: Ability to combine information acquired in different episodes to make new connections that we have not experienced directly Adaptive process that uses information stored in memory inflexible way Making correct associative inferences can lead to memory Copyright © 2023 by Macmillan Learning. All rights reserved misattribution errors. Successful associative inference led people to confuse elements of the scenes they had studied, resulting in the wrong pattern being reinstated on the scene memory test. PSYCHOLOGY Schacter | Gilbert | Nock | Johnsrude Canadian Sixth Edition