Lecture9MoreMemory

Lecture9MoreMemory - Outline True Memory, False Memory...

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1 True Memory, False Memory General Psychology Feb. 4, 2010 Dario Sacchi University of California, Davis Outline s Retrieval s Biology of Memory s False Memory s Changing a memory s Creating a memory Sensory Memory Working Memory Long-term Memory Retrieval Events Memory Retrieval Transfer Consolidation Getting Information Out of Memory s Bringing to mind information that has been previously encoded and stored s “Remembering” s Retrieval cue s External information that helps bring memories to mind Stage 3: Retrieval
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2 s Recall s No cues s Example: Fill-in-the-blank question s Recognition s Choose from options s Example: Multiple choice test s seems easier, but simply different s Relearning s Reacquire previously learned knowledge s Example: Second language Ways of Retrieving s Retrieval depends on encoding s How you get the info out depends on how you put the info in s Encoding specificity principle s Keep everything the same s Match between encoding cues and retrieval cues s Context-Dependent: external state s State-Dependent: internal context How to Improve Retrieval s Context-dependent retrieval s Retrieval cues: s Environment s Room s Seat s Time s Forget why you went into a room? s Go back to where you started Encoding Specificity Principle s State-dependent retrieval s Mood s State of consciousness Encoding Specificity Principle
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3 Decay Information Information -Processing Model Processing Model Retrieval Problems s Decay s Memories fade away s Interference s Memory get in the way of each other s Information learned EARLIER interferes with information learned LATER Proactive Interference s Information learned LATER interferes with information learned EARLIER Retroactive Interference Retrieval Problems: Interference Biology of Memory
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4 s Strengthening synaptic connections so that postsynaptic neurons are more easily activated s “Cells that fire together wire together” (Hebb) s Intense stimulation of presynaptic neuron b excitation in postsynaptic neuron s If stimulation is intense or repeated enough, then only weak stimulation is needed to excite the postsynaptic neuron Long-term Potentiation
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Lecture9MoreMemory - Outline True Memory, False Memory...

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