Engram

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Engram

Engram (/ˈɛnɡræm/; from Greek engramma, meaning "imprint") is a term used in neuroscience and psychology to denote a hypothetical change in brain structure that occurs in response to learning or the formation of a memory.

Etymology

The term "engram" was coined by the German biologist Richard Semon in his work Die mneme (1904). It is derived from the Greek word "engramma", which means "imprint".

Definition

An engram is a theoretical construct in psychology and neuroscience that represents a durable trace of a memory. It is believed to be a physical or biochemical change in the brain that corresponds to a memory, but the precise nature of these changes is not yet fully understood.

Related Terms

  • Memory Trace: Another term for engram, often used in cognitive psychology.
  • Long-term Potentiation: A long-lasting enhancement in signal transmission between two neurons that results from stimulating them synchronously. It is one of several phenomena underlying synaptic plasticity, the ability of chemical synapses to change their strength.
  • Neuroplasticity: The ability of neural networks in the brain to change through growth and reorganization. These changes range from individual neuron pathways making new connections, to systematic adjustments like cortical remapping.
  • Synaptic Plasticity: The ability of synapses to strengthen or weaken over time, in response to increases or decreases in their activity.

See Also

External links

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