01:830:101 Lecture 21: Psychology 101 Module 25 Outline
6 Jun 2018
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Module 25: Storing and Retrieving Memories
Retaining Information in the Brain
▪ Past research
▪ Whole past is contained in memory—waiting to be relived
▪ Newer findings
▪ Flashbacks during surgery are new creations of stressed brain
▪ Information is not stored in single, specific spot
▪ Karl Lashley—memories are brain based and are distributed across a network of
locations.
▪ Perception, language, emotions and more require brain networks
Explicit-Memory System: Hippocampus and Frontal Lobes
• Is dedicated to explicit memory formation
▪ Registers and temporarily holds elements of explicit memories before moving them to other
brain regions for long-term storage
▪ Neural storage of long-term memories is called memory consolidation
Implicit-Memory System: The Cerebellum and Basal Ganglia
▪ Implicit memory system: Cerebellum and basal ganglia
▪ Cerebellum plays important role in forming and storing memories created by classical
conditioning
▪ Memories of physical skills are also implicit memories.
▪ Basal ganglia help form memories for these skills.
▪ Infantile amnesia
▪ Conscious memory of first three years is blank
▪ Command of language and well-developed hippocampus needed
Retaining Information in the Brain
▪ Excitement or stress trigger hormone production and provoke amygdala to engage memory.
▪ Emotions often persist with or without conscious awareness.
▪ Emotional arousal causes an outpouring of stress hormones, which lead to activity in the
rai’s eory-forming areas.
Flashbulb memories occur via emotion-triggered hormonal changes and rehearsal
Synaptic Changes
▪ Long-term potentiation (LTP)
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Document Summary
Retaining information in the brain: past research, whole past is contained in memory waiting to be relived, newer findings, flashbacks during surgery are new creations of stressed brain. Information is not stored in single, specific spot: karl lashley memories are brain based and are distributed across a network of locations, perception, language, emotions and more require brain networks. Is dedicated to explicit memory formation: registers and temporarily holds elements of explicit memories before moving them to other brain regions for long-term storage, neural storage of long-term memories is called memory consolidation. Implicit memory system: cerebellum and basal ganglia: cerebellum plays important role in forming and storing memories created by classical conditioning, memories of physical skills are also implicit memories, basal ganglia help form memories for these skills. Infantile amnesia: conscious memory of first three years is blank, command of language and well-developed hippocampus needed. Flashbulb memories occur via emotion-triggered hormonal changes and rehearsal.
