ch 6 memory
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Questions and Answers

What is the definition of memory?

The ability to store and retrieve information over time.

What is the process of encoding?

Transforming perceived, thought, or felt information into a lasting memory.

What is the process of storage?

Maintaining information in memory over time.

What is the process of retrieval?

<p>Bringing to mind previously encoded and stored information.</p> Signup and view all the answers

How is memory a construction?

<p>Memories are constructed by combining existing knowledge with new sensory information.</p> Signup and view all the answers

What are the three main ways information is encoded into the brain?

<p>Organizational Encoding</p> Signup and view all the answers

What are the three types of semantic judgments?

<p>Semantic Judgement</p> Signup and view all the answers

What is semantic encoding?

<p>Relating new information to existing knowledge in a meaningful way.</p> Signup and view all the answers

What is visual imagery encoding?

<p>Storing new information by creating mental pictures.</p> Signup and view all the answers

What is organizational encoding?

<p>Categorizing information based on relationships among items.</p> Signup and view all the answers

What is the difference between sensory memory and short-term memory?

<p>Sensory memory holds information for a few seconds or less, while short-term memory holds information for a few seconds to a minute.</p> Signup and view all the answers

What are the two types of sensory memory?

<p>Echoic memory</p> Signup and view all the answers

What is rehearsal?

<p>Mentally repeating information to keep it in short-term memory.</p> Signup and view all the answers

What is the serial position effect?

<p>The tendency to recall the first and last items in a list better than items in the middle.</p> Signup and view all the answers

What is the primacy effect?

<p>Better recall of the first items in a list, due to more rehearsal and encoding into long-term memory.</p> Signup and view all the answers

What is the approximate size of short-term memory?

<p>Short-term memory can hold about 7 meaningful items at once.</p> Signup and view all the answers

How can short-term memory be increased?

<p>By chunking, which combines small pieces of information into larger meaningful units.</p> Signup and view all the answers

What are the elements of working memory?

<p>All of the above</p> Signup and view all the answers

What is the visuospatial sketchpad?

<p>The component of working memory used for visual images.</p> Signup and view all the answers

What is the phonological loop?

<p>The component of working memory used for verbal information.</p> Signup and view all the answers

What is the episodic buffer?

<p>Integrates visual and verbal information from the subsystems into a combined code.</p> Signup and view all the answers

What is the central executive?

<p>The component that coordinates the subsystems and the episodic buffer, controlling the flow of information.</p> Signup and view all the answers

What is long-term memory?

<p>Storage that holds information for hours, days, weeks, or years.</p> Signup and view all the answers

What was Dr. Brenda Milner's significant contribution to the understanding of long-term memory?

<p>She discovered the role of the hippocampus in long-term memory formation.</p> Signup and view all the answers

What is anterograde amnesia?

<p>The inability to transfer new information from short-term to long-term memory.</p> Signup and view all the answers

What is consolidation?

<p>The process by which memories become stable in the brain.</p> Signup and view all the answers

What is the role of the neural synapse in long-term memory storage?

<p>Synaptic connections between neurons strengthen with repeated activation, making communication easier.</p> Signup and view all the answers

What changes occur in the synapse when new memories are created?

<p>Increased neurotransmitter release for short-term storage and growth of new synapses for long-term storage.</p> Signup and view all the answers

What is a retrieval cue?

<p>External information associated with stored information that helps bring it to mind.</p> Signup and view all the answers

Explain the encoding specificity principle.

<p>Retrieval clues are most effective when they recreate the specific way information was initially encoded.</p> Signup and view all the answers

What is state-dependent retrieval?

<p>The tendency for information to be better recalled when the person is in the same state during encoding and retrieval.</p> Signup and view all the answers

What is transfer-appropriate processing?

<p>Memory is more likely to transfer from one situation to another when the contexts of encoding and retrieval match.</p> Signup and view all the answers

How can memories be changed by the act of retrieval?

<p>Retrieval can strengthen a memory or change it through reconsolidation, potentially leading to false memories.</p> Signup and view all the answers

What is eyewitness testimony?

<p>A person's account of an observed event, often used as legal evidence.</p> Signup and view all the answers

What is the difference between trying to recall and successfully recalling information?

<p>Trying to recall activates the left frontal lobe, while successfully recalling activates sensory areas related to the experience and has decreased hippocampal activity.</p> Signup and view all the answers

What are the two main types of long-term memory?

<p>Explicit memory</p> Signup and view all the answers

What is procedural memory?

<p>The gradual acquisition of skills through practice.</p> Signup and view all the answers

What is priming?

<p>An enhanced ability to think of a stimulus due to recent exposure.</p> Signup and view all the answers

What are the two types of priming?

<p>Conceptual priming</p> Signup and view all the answers

What is the difference between semantic and episodic memory?

<p>Semantic memory is a network of associated facts and concepts (general knowledge), while episodic memory is a collection of personal experiences.</p> Signup and view all the answers

How is episodic memory connected to imagination and creativity?

<p>Recalling details of past experiences can improve our ability to imagine future scenarios.</p> Signup and view all the answers

What is divergent and creative thinking?

<p>Generating creative ideas by combining different types of information in new ways.</p> Signup and view all the answers

What is the alternate uses task (AUT)?

<p>A task where participants generate unusual uses for common objects.</p> Signup and view all the answers

What is a nominal group?

<p>A group where individuals recall information independently, then their contributions are combined.</p> Signup and view all the answers

What are the pros and cons of collaborative memory?

<p>All of the above</p> Signup and view all the answers

What is transitive memory?

<p>Collaborative remembering seen in close relationships, where each member remembers different aspects of information.</p> Signup and view all the answers

What are the seven memory 'sins' and possible benefits of each?

<p>Transience (forgets less important details), Absentmindedness (focuses on important information), Blocking (avoids unnecessary detail overload), Misattribution (anticipates future events based on memories), Suggestibility (carefully records necessary details), Bias (maintains positive illusion about oneself), Persistence (remembers traumatic or threatening events for survival).</p> Signup and view all the answers

What is transience?

<p>Forgetting information over time, particularly in sensory and short-term memory.</p> Signup and view all the answers

What are the types of interference that can lead to forgetting?

<p>Retroactive interference</p> Signup and view all the answers

What is retroactive interference?

<p>Later learning impairs memory for information acquired earlier.</p> Signup and view all the answers

What is childhood, or infantile amnesia?

<p>The lack of memories from the early years of life.</p> Signup and view all the answers

What is absentmindedness?

<p>Lapses in attention that lead to memory failures.</p> Signup and view all the answers

What is prospective memory?

<p>Remembering to do things in the future.</p> Signup and view all the answers

What is intentional offloading?

<p>Relying on external devices to remind us about tasks.</p> Signup and view all the answers

What is memory misattribution?

<p>Assigning a recollection or idea to the wrong source.</p> Signup and view all the answers

What is source memory?

<p>Recall of when, where, and how information was acquired.</p> Signup and view all the answers

What is déjà vu?

<p>A feeling of familiarity with a situation, even though no details can be recalled.</p> Signup and view all the answers

What is false recognition?

<p>Feeling familiar with something that has not been encountered before.</p> Signup and view all the answers

What is suggestibility?

<p>The tendency to incorporate misleading information from external sources into personal recollections.</p> Signup and view all the answers

What is bias?

<p>The distorting influence of present knowledge, beliefs, and feelings on the recollection of past experiences.</p> Signup and view all the answers

What are the types of bias in memory?

<p>All of the above</p> Signup and view all the answers

What is consistency bias?

<p>The tendency to reconstruct the past to fit the present.</p> Signup and view all the answers

What is change bias?

<p>The tendency to exaggerate differences between what we feel now and what we felt in the past.</p> Signup and view all the answers

What is egocentric bias?

<p>The tendency to exaggerate our own contributions or positive aspects of past events.</p> Signup and view all the answers

What are flashbulb memories?

<p>Detailed recollections of when and where we heard about shocking events.</p> Signup and view all the answers

How does the amygdala play a role in persistence?

<p>The amygdala is involved in the release of stress hormones, enhancing memory for emotional experiences.</p> Signup and view all the answers

Study Notes

Memory Processes

  • Memory is the ability to store and retrieve information over time.
  • Encoding, storage, and retrieval are the three basic aspects of memory.
  • Encoding involves transforming perceived, thought, or felt information into a lasting memory.
  • Storage is the process of keeping information in memory over time.
  • Retrieval involves calling to mind previously encoded and stored information.
  • Memories are constructed by combining existing knowledge with new sensory information, therefore memories are constructions, combining what we know with new input
  • Encoding methods include:
    • Semantic encoding: relating new information to existing knowledge (e.g., remembering events, not digits). Active areas are the lower left frontal lobe and the inner left temporal lobe, greater activity here correlates with better recall.
    • Visual imagery encoding: creating mental images to store information. Relating new info to already existing memories helps this process.
    • Organizational encoding: categorizing information based on relationships.

Semantic Judgments

  • Three types of semantic judgments involve thinking about the meaning, sound, or appearance of words.

Sensory Memory vs. Short-Term Memory

  • Sensory memory holds information briefly (seconds or less).
  • Two types of sensory memory:
    • Iconic memory (visual)
    • Echoic memory (auditory)
  • Short-term memory holds information for longer durations (seconds to minutes).

Short-Term Memory

  • Capacity: approximately 7 meaningful items.
  • Rehearsal: repeating information to maintain it in short-term memory.
  • Serial position effect: better recall of first and last items in a list (primary and recency effects).
  • Primary effect: better recall of initial items due to greater rehearsal opportunities.
  • Recency effect: better recall of final items due to recent presence in short-term memory.
  • Chunking: combining small bits of information into larger, manageable chunks to increase short-term memory capacity.

Working Memory

  • Working memory actively maintains information in short-term storage; uses multiple subsystems:
    • Visuospatial sketchpad: for visual images.
    • Phonological loop: for verbal information.
    • Episodic buffer: combines visual and verbal information into a single code, acts as a gateway to long-term memory.
    • Central executive: coordinates subsystems and the episodic buffer.

Long-Term Memory

  • Holds information for extended periods (hours, days, weeks, years).
  • Brenda Milner’s work was crucial in identifying the critical role of the hippocampus in long-term memory formation.
  • Long-term memory involves processing and transferring information from short-term memory into long-term storage.
  • Anterograde amnesia: inability to transfer new information from short-term into long-term memory.
  • Retrograde amnesia: inability to retrieve information acquired before a certain date/point.
  • Consolidation: the process of making memories stable in the brain.
  • Reconsolidation: a process where retrieved memories are potentially altered before being stored again.
  • Neural Synapses in Memory:
    • Neurons that fire together wire together (more firing strengthens connection).
    • Long-term potentiation (LTP): strengthens synaptic connections, resulting in easier communication between neurons. LTP is involved in memory formation.
    • Changes in neural synapses support both short and long-term memory storage; increased neurotransmitter release = short-term; new synapse growth = long-term.

Retrieval

  • Retrieval is bringing previously stored information to mind.
  • Retrieval cues: external information that helps access stored memories.
  • Encoding specificity principle: retrieval is enhanced when the context of retrieval matches the context of encoding (e.g., studying in the same room as the test).
  • State-dependent retrieval: retrieving information more effectively when in the same physiological or emotional state as during encoding.
  • Transfer-appropriate processing: matching the contexts of encoding and retrieval situations enhances retrieval.
  • Retrieval-induced forgetting: retrieving an item impairs the recall of related items.

Types of Long-Term Memory

  • Explicit memory: conscious retrieval of past experiences.
  • Implicit memory: past experiences influence later behavior without conscious effort or awareness.
    • Procedural memory: gradually acquired skills; automatic execution of tasks (e.g., playing an instrument).
    • Priming: enhanced ability to process a stimulus due to prior exposure.
      • Perceptual priming: recalling sensory features of an item.
      • Conceptual priming: recalling the meaning of a word or object.
  • Semantic memory: network of associated facts and concepts (general knowledge).
  • Episodic memory: collection of personal experiences at specific times and places (autobiographical).

Collaborative Memory

  • Collaborative memory: groups can sometimes recall more than individuals, but certain limitations and social dynamics can also negatively affect recall.
    • Transitive memory: specific individuals in close relationships remember certain pieces of information.

Seven Sins of Memory

  • Transience: forgetting over time.
  • Absentmindedness: lapses in attention.
  • Blocking: temporary inability to retrieve information.
  • Misattribution: assigning memories to incorrect sources.
  • Suggestibility: incorporating misleading information.
  • Bias: present knowledge influencing recall.
  • Persistence: intrusive memories that can't be forgotten.

Factors Affecting Memory

  • Interference: retroactive (later learning impairs earlier) and proactive (earlier learning impairs later).
  • Childhood amnesia: few memories from early childhood.

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Description

This quiz explores the basics of memory, including the processes of encoding, storage, and retrieval. Participants will learn about different encoding methods such as semantic and visual imagery encoding, and how these processes are linked to brain activity. Test your understanding of how memories are constructed and retained over time.

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