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11 Cards in this Set
- Front
- Back
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What is memory? |
Memory can be viewed as the capacity to store knowledge for later retrieval. |
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What are the 3 stages of memory storage? |
1. Working memory 2. Short-term memory 3. Long-term memory |
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What is working memory? |
Working memory: Briefly stored information required for the immediate performance of tasks, which is transient, lasting only a few seconds to minutes, but is highly detailed. |
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What is short-term memory? |
Short-term memory: lasts longer that working memory & can be stored from minutes to days. The formation of short-term memory involves the enhancement of synaptic activity by LONG-TERM POTENTIATION, which facilitates the future transmission of action potentials. |
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What is long-term memory? |
Long-term memory: requires the prior formation of short-term memory. It is a more stable storage state that lasts from days to years or a lifetime. Are stabilized by the formation of additional synaptic connections following new protein synthesis. |
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Continued long-term memory, what is the process of transfering short-term memory to long-term memory? |
Consolidation- gradual process involving the formation of new and stronger synaptic connections that can occur over a period of years and probably involves multiple steps, repetition and associating it with existing memories or a strong emotion increaes the consolidation of short-term to long-term memory. Long-term memory is longer lasting due to an increased number of strengthened synapses. |
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What is another way to classify long-term memories? |
The type of memory |
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What are the 2 subdivisions for long-term memory? |
Based on the type of memory: 1. Declarative memory 2. Procedural memory * both types involve networks of neurons that work together to form a memory. |
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What is declarative memory? |
Declarative memory: (explicit memory) Involves the retention of FACTS you can easily state or declare. (Names, dates, places) Procedural memory: (implicit or reflexive memory) Involves the deployment of SKILLS or procedures. (Riding a bike, playing piano) |
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What is a memory engram? |
A memory engram or memory trace, is a network of neurons and their pattern of activity. Probably involved in the long-term retention of information, a thought or an idea. Memories are not a single set of neurons, but rather a collection of the activity between groups of interconnected neurons. Memory appears to be distributed in large networks in the brain rather than confined to a particular storage area. |
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What does the retrieval of a complete memory require? |
Requires accessing parts of the memory from different areas (also called pigeon holes). A complex memory requires accessing & reassembling segments of memory, each time the memory is recalled. Ex. Memory may be stored in at least 4 different places/pigeon holes. Where you were, who you were with, what happened, how you felt. |
