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Related Concept Videos

Forgetting01:21

Forgetting

429
Forgetting is an intrinsic aspect of human memory, characterized by the gradual loss or inaccessibility of information over time. Hermann Ebbinghaus, a pioneering psychologist, extensively studied this phenomenon and formulated the forgetting curve. This curve illustrates that memory loss occurs rapidly immediately after learning and then decelerates over time. Several mechanisms contribute to forgetting, including encoding failure, storage decay, retrieval failure, and interference.
Encoding...
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Neurogenesis and Regeneration of Nervous Tissue01:15

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In the CNS, neurogenesis, the birth of new neurons from stem cells, is limited to the hippocampus in adults. In other regions of the brain and spinal cord, neurogenesis is almost non-existent due to inhibitory influences from neuroglia, especially oligodendrocytes, and the absence of growth-stimulating cues. The myelin produced by oligodendrocytes in the CNS inhibits neuronal regeneration. Furthermore, astrocytes proliferate rapidly after neuronal damage, forming scar tissue that physically...
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Information is everywhere and its presentation—such as how and when items are presented—can impact our perceptions and decisions surrounding the info. This broad concept umbrellas framing effects—influences that occur due to the way information is framed in its appearance, whether it’s purely the order or the specific wording of a message. Let’s take a look at numerous ways in which two versions of something can objectively say the same thing, yet we respond in...
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If you want to understand how behavior occurs, one of the best ways to gain information is to simply observe the behavior in its natural context. However, people might change their behavior in unexpected ways if they know they are being observed. How do researchers obtain accurate information when people tend to hide their natural behavior? As an example, imagine that your professor asks everyone in your class to raise their hand if they always wash their hands after using the restroom. Chances...
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Once data is collected from both the experimental and the control groups, a statistical analysis is conducted to find out if there are meaningful differences between the two groups. A statistical analysis determines how likely any difference found is due to chance (and thus not meaningful). In psychology, group differences are considered meaningful, or significant, if the odds that these differences occurred by chance alone are 5 percent or less. Stated another way, if we repeated this...
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Solubility is the measure of the maximum amount of solute that can be dissolved in a given quantity of solvent at a given temperature and pressure. Solubility is usually measured in molarity (M) or moles per liter (mol/L). A compound is termed soluble if it dissolves in water.
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Related Experiment Video

Updated: Feb 14, 2026

Functional Interrogation of Adult Hypothalamic Neurogenesis with Focal Radiological Inhibition
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Neurogenesis: remembering all or forgetting some.

Shikha Jain Goodwin1

  • 1Department of Neuroscience, University of Minnesota , Minneapolis, Minnesota.

Journal of Neurophysiology
|February 15, 2018
PubMed
Summary
This summary is machine-generated.

Adult neurogenesis in the hippocampus impacts memory. Recent studies show conflicting results on whether increased neurogenesis, induced by running, aids or hinders memory recall.

Keywords:
exerciseforgettingneurogenesisretrograde memoryspatial memory

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Area of Science:

  • Neuroscience
  • Cognitive Science

Background:

  • Adult neurogenesis, the creation of new neurons in the adult brain, is increasingly recognized for its role in cognitive functions.
  • The hippocampus is a key brain region involved in learning and memory, and it is one of the few areas where adult neurogenesis occurs.

Purpose of the Study:

  • To investigate the effects of adult neurogenesis on the maintenance and recall of pre-existing memories.
  • To reconcile conflicting findings from recent studies examining the relationship between exercise-induced neurogenesis and memory retrieval.

Main Methods:

  • Review and synthesis of three recent studies investigating adult neurogenesis and memory.
  • Analysis of factors such as context, species, and experimental design that may explain discrepancies in study outcomes.

Main Results:

  • Two studies indicated that running, which enhances hippocampal neurogenesis, led to memory impairment (induced forgetting).
  • One study found no significant difference in memory retrieval after exercise-induced neurogenesis.
  • Conflicting results highlight the complexity of adult neurogenesis's role in memory.

Conclusions:

  • The precise impact of adult neurogenesis on memory maintenance and recall remains debated.
  • Understanding memory processes, context, species differences, and methodological variations is crucial for reconciling current research findings.