AP psych

Introduction to Memory

  • Overview of the memory systems in psychology.

Three Box Model of Memory

  • Sensory Memory: Initial stage that holds information from the senses for a short duration.

    • Includes various sensory modalities: taste, smell, touch, visual, and auditory.

  • Short Term Memory (STM): Holds a limited amount of information for a brief period (20-30 seconds).

    • Capacity: Typically holds 7 ± 2 items (Miller's law).

    • Example: Memorizing phone numbers without area codes, typically consists of 7 digits.

  • Long Term Memory (LTM): Information that is stored for long periods and can be recalled later.

  • Working Memory:

    • An updated model that acts as a temporary storage space for information that is actively being processed and manipulated.

    • Plays a crucial role in learning in an academic environment.

    • Without rehearsal or practice, information in working memory will decay and fade.

Importance of Practice and Rehearsal

  • Concept of Working Memory: Highlights the need for engagement with new information through practice for effective learning.

  • Example: In training for poultry science, hands-on experience is necessary to avoid mistakes with live animals.

Encoding in Memory

  • Definition of Encoding: The process of converting information into a format that can be stored in memory.

  • Distinction between automatic and effortful processing:

    • Automatic Processing: Unconscious and requires no effort, e.g., recognizing familiar faces.

    • Effortful Processing: Requires conscious effort and attention, e.g., studying for a quiz or recalling information on demand.

Types of Memory Processing

  • Implicit Memories (also classified under automatic processing):

    • Motor Skills: E.g., standing up or walking without thinking.

    • Classically Conditioned Associations: Automatic reactions like stopping at a red light.

  • Explicit Memories (also classified under effortful processing):

    • Definitions: Conscious memories that can be verbalized, such as recalling facts or events.

    • Example: Trivia game involving generational knowledge as an exercise in explicit memory.

Examples of Memory Types

  • Antidotes: Personal stories that illustrate explicit memory in action; requires conscious retrieval of memories.

  • Sensory Memories:

    • Iconic Memory: Visual sensory memory lasting for tenths of a second; Allows for brief retention of visual stimuli.

    • Example: Looking at a grid of letters and visualizing it for a moment after looking away.

    • Echoic Memory: Auditory sensory memory lasting for about three to four seconds; retains auditory information.

    • Example: Remembering the last thing said in class after a short interruption.

Storage Duration and Awareness

  • Sensory memory captures fleeting images and sounds, leading to short attention spans.

  • Importance of focus and retrieval cues: Retrieval cues can aid in recalling information from memory.

Conclusion

  • Memory encompasses various systems and processes that depend on types of practice, the nature of encoding, and the form in which information is retrievably stored.