Memory: Encoding

Nature of Memory

  • Memory is defined as the retention and retrieval of information or experiences over time.
  • Three important processes of memory:
    • Encoding
    • Storage
    • Retrieval
  • Example: A restaurant server encodes customer orders, retains them mentally, and retrieves them for serving.

Processes of Memory

Encoding

  • Definition: The process by which information enters memory storage.
  • Examples of encoding: Listening to lectures, reading books, watching videos.
  • Information can be encoded automatically or require effort.

Attention

  • Definition: The focus of cognitive resources on specific information while ignoring others.
  • Selective Attention: Involves focusing on one aspect while ignoring others, due to limited brain resources.
    • Example: Noticing your partner but ignoring background distractions.
  • Processing capacity of conscious mind is limited; multitasking can impede encoding.

Types of Attention

  • Divided Attention: Concentrating on multiple activities at once (e.g., reading while watching TV).
  • Sustained Attention: Maintaining focus on a stimulus for a long time (e.g., studying for exams).
  • Consequences of Divided Attention: Reduces memory effectiveness.
  • Example of distraction: Texting while driving contributes to crashes.

Note-taking Methods

  • Debate exists between laptop note-taking vs. pen and paper.
  • Scientific findings suggest handwritten notes enhance memory retention compared to laptop notes due to reduced distractions.

Levels of Processing

  • Proposed by Fergus Craik and Robert Lockhart: Memory encoding can be shallow, intermediate, or deep.
  • Shallow Processing: Note physical features (e.g., shapes of letters).
  • Intermediate Processing: Give labels to stimuli (e.g., recognizing 'mom').
  • Deep Processing: Understanding and thinking meaningfully about stimuli (e.g., who is mom?).
  • Deeper processing improves ability to recall memory.

Elaboration

  • Definition: Creating multiple connections around a stimulus during encoding.
  • Involves linking new information to prior knowledge (like a spider web).
  • Example: Elaborating on the word "mom" by discussing personal experiences or using associations.

Self-Reference Effect

  • Relating material to one’s own experiences enhances memory.
  • This is supported by neuroscience linking deep processing to brain activity—especially in the left frontal lobe and hippocampus.

Mental Imagery

  • Using imagery can effectively enhance memory retrieval.
  • Example to remember the digits of pi (3.1415926) by visual storytelling.
  • Alan Paivio's Dual Code Hypothesis: Memory can be stored verbally or visually, with images leading to better recall.

Combining Strategies

  • Combining deep processing, elaboration, and mental imagery creates resilient and memorable memories.
  • Example: Creating vivid imagery for a password (e.g., recalling sports figures' jersey numbers) enhances the respective memory.