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Related Concept Videos

Higher Mental Functions of Brain: Learning and Memory01:26

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Memory is one of the most vital higher mental functions of the brain. Memory is closely related to learning because it enables us to retain information and experiences from our past to use them in our present life. It also helps us to remember facts, events, and skills, such as riding a bike or swimming. There are two types of memory — declarative memory, which involves memorizing facts or events, and procedural memory, which enables us to remember how to do something like writing or...
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Memory is the retention of information or experiences over time, facilitated through three main processes: encoding, storage, and retrieval. Encoding is the process of inputting information into the memory system. For instance, when listening to a lecture, watching a play, reading a book, or having a conversation, the brain is actively encoding information. This initial stage involves transforming sensory input into a form that can be processed and stored by the brain. Various factors, such as...
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Amnesia is a condition marked by long-term memory loss, which impairs the ability to recall past events or create new memories.
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Interference and Decay01:16

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Forgetting is a complex cognitive phenomenon influenced by several factors, among which interference and decay are particularly prominent. These processes explain why individuals often struggle to retrieve specific information from memory, leading to lapses in recall that can be observed in everyday situations.
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Implicit Memories01:24

Implicit Memories

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Implicit memories, also known as non-declarative memories, are long-term memories that function outside of conscious awareness. These memories influence behavior and skills without explicit knowledge. This type of memory is evident in tasks like playing tennis, snowboarding, and texting. Implicit memory has three subsystems: procedural memory, conditioning, and priming. This type of memory is essential in various activities, from everyday tasks to specialized skills.
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System of Memory01:23

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Memory is categorized into three major systems: sensory memory, short-term memory (STM), and long-term memory (LTM). These systems differ in their capacity and the duration for which they can hold information. Sensory memory captures raw sensory input from the environment, holding it for just a few seconds or less. For example, on hearing a brief, loud sound, like a car horn honking, the sound seems to linger in the mind for a moment even after it stops. This is an instance of sensory memory...
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Transcranial Direct Current Stimulation tDCS for Memory Enhancement
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Getting better without memory.

Julia G Halilova1, Donna Rose Addis2,3, R Shayna Rosenbaum1,2

  • 1Department of Psychology, York University.

Social Cognitive and Affective Neuroscience
|August 1, 2020
PubMed
Summary
This summary is machine-generated.

Episodic memory may not be essential for temporal self-appraisal biases like the end-of-history illusion. Findings suggest self-concept extension does not require detailed past or future self-memories.

Keywords:
case studydevelopmental amnesiaend-of-history illusionepisodic memoryself-appraisalsocial improvement illusion

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Area of Science:

  • Cognitive Psychology
  • Neuroscience
  • Memory Research

Background:

  • The self-concept often extends across time, involving appraisals of past, present, and future selves.
  • Biases such as the end-of-history illusion and social improvement illusion are common in temporal self-appraisal.

Purpose of the Study:

  • To investigate whether episodic memory is necessary for temporal self-appraisal biases.
  • To determine if the extension of the self-concept across time relies on detailed memory recollection.

Main Methods:

  • A developmental amnesic individual with impaired episodic memory (HC) was compared to age-matched controls.
  • Participants completed tasks assessing Big Five personality traits and social competence across past, present, and future timeframes.

Main Results:

  • Controls exhibited the end-of-history illusion and social improvement illusion, moderated by self-esteem.
  • HC, despite lifelong episodic memory impairment, also demonstrated these temporal self-appraisal biases.

Conclusions:

  • The findings challenge the necessity of episodic memory for temporal self-concept extension.
  • The ability to recollect detailed past and future self-memories is not required for these self-appraisal biases.