knowt ap exam guide logo

Memory

  • Memory: persistence of learning over time; it is information that has been acquired and stored and can be retrieved.

    • 3 Steps:

      • Encoding: where perceived information is transformed into a format that can be processed and stored in the brain

      • Storage: the process of retaining information in the brain over time

      • Retrieval: the process of accessing and bringing stored information back into conscious awareness

  • Short-term: temporarily holds a small amount of information, typically for about 15-30 seconds. has a limited capacity

  • Long-term: the stage of memory where information is stored indefinitely, with a virtually unlimited capacity. allows for the long-term retention of knowledge, skills, experiences and facts

  • Explicit memory: involves conscious recall of facts and experiences

    • Episodic memory: for specific events and experiences

    • Semantic memory: for general knowledge and facts

  • Implicit memory: does not require conscious thought and is crucial for performing everyday tasks automatically

    • Procedural memory: for procedures and processes (riding a bike)

    • Prospective memory: relates to remembering future actions (dentist appointment next week)

  • Sensory Memory: the initial stage of memory where sensory information is stored for a very brief period. It acts as a buffer for stimuli received through the senses and retains impressions of these stimuli for a few seconds at most.

    • Iconic Memory: type of sensory memory that briefly holds visual images. It captures a precise copy of a visual scene for a fraction of a second before it fades. 

    • Echoic Memory: type of sensory memory that retains auditory information. It holds sounds for about 3-4 seconds, allowing the brain to process spoken language and other auditory stimuli.

  • Long-Term Potentiation (LTP): long-lasting increase in signal transmission between neurons that results from their simultaneous activation. LTP is considered one of the major cellular mechanisms that underlies learning and memory.  Long-term potentiation strengthens synaptic connections between neurons with frequent activation.  

    • Biological process underlying memory formation and storage

    • Repeated stimulation of connected neurons enhances signal transmission efficiency

    • Leads to long-lasting increases in synaptic strength facilitating information retrieval

  • Flashbulb memories: a vivid memory about an emotionally significant event, usually a historic or other notable event; very susceptible to changes over times

  • Hippocampus: a neural center in the limbic system that processes explicit memories

    • Explicit memories: conscious recall of facts and experiences

      • Semantic Memory: type of explicit memory that involves the recall of general facts and knowledge about the world

      • Episodic memory: involves the recollection of personal experiences and specific events

      • Autobiographical Memory: encompasses events and experiences from your own life

  • Cerebellum

    • Implicit memory: doesn’t require conscious thought and is crucial for performing everyday tasks automatically

      • Procedural memory: involved the recall of how to perform tasks or skills automatically (muscle memory)

        • Skill-Based action: such as driving, typing, or playing `musical instruments

      • Prospective Memory: remembering how to do something in the future

    • Spacing Effect “Distributed Practice”: where learning is more effective when study sessions are spaced out over time

    • Massed Practice “Cramming”: where content is studied intensively over a short period without breakings

  • Maintenance Rehearsal: involves repeatedly reviewing information to keep it in short-term memory

  • Elaborative Rehearsal: involves deep processing of information by adding meaning

  • Retrieval Cues: stimuli that help bring previously learned information to mind. they play a critical role in the process of retrieving memories and can be

    • External cues: environmental factors or objects that trigger memories

    • Internal cues: thoughts or feelings associated with the original learning

  • Recall: type of memory retrieval that involves accessing information without the aid of cues (retrieve information from memory spontaneously.)

  • Recognition: type of memory retrieval that involves identifying information when it is presented. It includes

    • Familiarity: Sensing that something has been encountered before.

    • Identification: Matching new information with stored knowledge (e.g., recognizing the correct answer on a multiple-choice test).

  • Context-Dependent Memory: when you remember information better in the same environment where you first learned it. 

    • Physical surroundings: Like being in the same room where you studied.

    • Similar conditions: Such as the same background noises or smells.

  • State-Dependent Memory: the phenomenon where memory retrieval is most effective when an individual is in the same state of consciousness as they were when the memory was formed.

    • Physical State: such as being tired or energized

    • Emotional State: such as being happy or sad

  • Mood-Congruent Memory: tendency to recall information that is consistent with one’s current mood

    • Memories are more easily retrieved when they match the emotional state at the time of recall

    • This can lead to a selective recall of memories that reinforce one’s mood, either positive and negative,

  • Serial Position Effect: the tendency to remember items at the beginning (primary effect) and end (recency effect) of a list better than those in the middle

    • Primacy Effect: cognitive phenomenon where individuals tend to remember items presented at the beginning of a list better than those that follow.

    • Recency Effect: phenomenon observed in memory recall where the most recently presented items in a list are recalled more clearly and accurately than the items in the middle.

  • Testing Effect: phenomenon where long-term memory is enhanced when some of the learning period is devoted to retrieving the information through testing.

  • Metacognition: awareness and understanding of one’s own thought processes, especially in relation to learning and memory

Self-monitoring: assessing one’s own learning and memory processes, such as knowing when one knows something or not.

AR

Memory

  • Memory: persistence of learning over time; it is information that has been acquired and stored and can be retrieved.

    • 3 Steps:

      • Encoding: where perceived information is transformed into a format that can be processed and stored in the brain

      • Storage: the process of retaining information in the brain over time

      • Retrieval: the process of accessing and bringing stored information back into conscious awareness

  • Short-term: temporarily holds a small amount of information, typically for about 15-30 seconds. has a limited capacity

  • Long-term: the stage of memory where information is stored indefinitely, with a virtually unlimited capacity. allows for the long-term retention of knowledge, skills, experiences and facts

  • Explicit memory: involves conscious recall of facts and experiences

    • Episodic memory: for specific events and experiences

    • Semantic memory: for general knowledge and facts

  • Implicit memory: does not require conscious thought and is crucial for performing everyday tasks automatically

    • Procedural memory: for procedures and processes (riding a bike)

    • Prospective memory: relates to remembering future actions (dentist appointment next week)

  • Sensory Memory: the initial stage of memory where sensory information is stored for a very brief period. It acts as a buffer for stimuli received through the senses and retains impressions of these stimuli for a few seconds at most.

    • Iconic Memory: type of sensory memory that briefly holds visual images. It captures a precise copy of a visual scene for a fraction of a second before it fades. 

    • Echoic Memory: type of sensory memory that retains auditory information. It holds sounds for about 3-4 seconds, allowing the brain to process spoken language and other auditory stimuli.

  • Long-Term Potentiation (LTP): long-lasting increase in signal transmission between neurons that results from their simultaneous activation. LTP is considered one of the major cellular mechanisms that underlies learning and memory.  Long-term potentiation strengthens synaptic connections between neurons with frequent activation.  

    • Biological process underlying memory formation and storage

    • Repeated stimulation of connected neurons enhances signal transmission efficiency

    • Leads to long-lasting increases in synaptic strength facilitating information retrieval

  • Flashbulb memories: a vivid memory about an emotionally significant event, usually a historic or other notable event; very susceptible to changes over times

  • Hippocampus: a neural center in the limbic system that processes explicit memories

    • Explicit memories: conscious recall of facts and experiences

      • Semantic Memory: type of explicit memory that involves the recall of general facts and knowledge about the world

      • Episodic memory: involves the recollection of personal experiences and specific events

      • Autobiographical Memory: encompasses events and experiences from your own life

  • Cerebellum

    • Implicit memory: doesn’t require conscious thought and is crucial for performing everyday tasks automatically

      • Procedural memory: involved the recall of how to perform tasks or skills automatically (muscle memory)

        • Skill-Based action: such as driving, typing, or playing `musical instruments

      • Prospective Memory: remembering how to do something in the future

    • Spacing Effect “Distributed Practice”: where learning is more effective when study sessions are spaced out over time

    • Massed Practice “Cramming”: where content is studied intensively over a short period without breakings

  • Maintenance Rehearsal: involves repeatedly reviewing information to keep it in short-term memory

  • Elaborative Rehearsal: involves deep processing of information by adding meaning

  • Retrieval Cues: stimuli that help bring previously learned information to mind. they play a critical role in the process of retrieving memories and can be

    • External cues: environmental factors or objects that trigger memories

    • Internal cues: thoughts or feelings associated with the original learning

  • Recall: type of memory retrieval that involves accessing information without the aid of cues (retrieve information from memory spontaneously.)

  • Recognition: type of memory retrieval that involves identifying information when it is presented. It includes

    • Familiarity: Sensing that something has been encountered before.

    • Identification: Matching new information with stored knowledge (e.g., recognizing the correct answer on a multiple-choice test).

  • Context-Dependent Memory: when you remember information better in the same environment where you first learned it. 

    • Physical surroundings: Like being in the same room where you studied.

    • Similar conditions: Such as the same background noises or smells.

  • State-Dependent Memory: the phenomenon where memory retrieval is most effective when an individual is in the same state of consciousness as they were when the memory was formed.

    • Physical State: such as being tired or energized

    • Emotional State: such as being happy or sad

  • Mood-Congruent Memory: tendency to recall information that is consistent with one’s current mood

    • Memories are more easily retrieved when they match the emotional state at the time of recall

    • This can lead to a selective recall of memories that reinforce one’s mood, either positive and negative,

  • Serial Position Effect: the tendency to remember items at the beginning (primary effect) and end (recency effect) of a list better than those in the middle

    • Primacy Effect: cognitive phenomenon where individuals tend to remember items presented at the beginning of a list better than those that follow.

    • Recency Effect: phenomenon observed in memory recall where the most recently presented items in a list are recalled more clearly and accurately than the items in the middle.

  • Testing Effect: phenomenon where long-term memory is enhanced when some of the learning period is devoted to retrieving the information through testing.

  • Metacognition: awareness and understanding of one’s own thought processes, especially in relation to learning and memory

Self-monitoring: assessing one’s own learning and memory processes, such as knowing when one knows something or not.

robot