Memory for

Some Questions We Will Consider

  • What kinds of events from our lives are we most likely to remember? (228)
  • Is there something special about memory for extraordinary events like the 9/11 terrorist attacks? (232)
  • What properties of the memory system make it both highly functional and also prone to error? (236)
  • Why is eyewitness testimony often cited as the cause of wrongful convictions? (248)
  • Why would someone confess to a crime they didn't commit? (254)

Introduction to Memory

  • Acknowledgement of the persistence of memory-related inquiries within ongoing psychological study.
  • Reflection on the historical context of memory research that has unfolded prior to this chapter's examination.

The Journey So Far

  • Memory was initially defined in Chapter 5 by introducing Atkinson and Shiffrin's information-processing model, articulating three stages of memory:
    • Sensory Memory
    • Short-Term Memory (STM)
    • Long-Term Memory (LTM)
  • The dynamic nature of memory contrasts with static conceptions, underscoring processes of consolidation and retrieval.

Autobiographical Memory: What Has Happened in My Life

Definition

  • Autobiographical memory encompasses recollections of specific life events, integrating elements from both episodic and semantic memory (Cabeza & St. Jacques, 2007).
  • Example: A childhood birthday party memory could involve:
    • Visual details (the cake, people).
    • Temporal and contextual knowledge (when and where it happened).

Characteristics of Autobiographical Memory

  1. Multidimensional Nature
    • Involves visual, auditory, spatial, and emotional factors:
      • Visual: Images recalled when reliving experiences.
      • Auditory: Sounds or conversations from the memory.
      • Emotional and cognitive: Engaging thoughts and emotions, both positive and negative.
    • Patients with deficits in visual recognition often exhibit losses in autobiographical recall due to lack of visual retrieval cues (Greenberg & Rubin, 2003).
  2. Differential Event Recall
    • Certain memories are recalled more easily than others, often due to their personal significance.
    • The reminiscence bump paradigm shows that significant life milestones enhance memory retention.

Memory Over the Life Span

  • Reminiscence Bump: Enhanced recollection for events occurring between ages 10 to 30 among older adults (Conway, 1996; Rubin et al., 1998).
    • Theories Explaining the Reminiscence Bump:
      1. Self-Image Hypothesis: Significant events during identity formation boost memory (Rathbone et al., 2008).
      2. Cognitive Hypothesis: Periods of rapid change followed by stability enhance memory encoding.
      3. Cultural Life Script Hypothesis: Memorable events are linked to culturally expected timelines (Berntsen & Rubin, 2004).

Memory for "Exceptional" Events

Overview of Memorable Events

  • Events that invoke strong emotions, such as the 9/11 attacks, are prioritized in memory formation.

Memory and Emotion

  • Emotional events (first-year of college, trauma) have elevated recall rates (Pillemer, 1998).

Flashbulb Memories

  • Definition: Vivid memories of the circumstances in which one learns about consequential events, associatively linked to emotion (Brown & Kulik, 1977).
  • Example of flashbulb memory: The memory formation of collective tragic events (e.g., 9/11).
  • Findings indicate that although flashbulb memories feel detailed, they can change over time and often contain inaccuracies (Neisser & Harsch, 1992).

The Constructive Nature of Memory

Source Monitoring Errors

  1. Definition: The cognitive process of determining memory origin, susceptible to misattribution (Johnson et al., 1993).
  2. Experiment on Familiarity and Memory: Showed how recognizing previously seen material can trigger source monitoring errors, contributing to misattributed memories (Jacoby et al., 1989).

The Illusory Truth Effect

  • The phenomenon where repeated statements are more likely to be perceived as true, regardless of veracity (Begg et al., 1992).
  • Example: False statements repeated tend to be considered true over time due to familiarity (Fazio et al., 2015).

Impact of Schema on Memory

  • Schemas influence how memory is structured, leading to alterations based on preexisting knowledge.
  • Experiment Example: Participants reported seeing books in an office where none were present, indicative of schema-induced memory errors (Brewer & Treyens, 1981).

Errors in Eyewitness Testimony

Problems with Eyewitness Identification

  1. High Stakes in Identification: Eyewitness testimony is frequently regarded as credible despite its fallibility.
  2. Flaws in Perception: Many instances of misidentification result from poor initial observation or emotional distraction (Stanny & Johnson, 2000).
  3. Examples of Misidentification: Historical instances where wrongful convictions occurred as a result of erroneous eyewitness accounts (Goldstein et al., 1989).
  4. Social Pressure to Identify: The phenomenon of