PSY 150A1 Lecture Notes - Lecture 7: Hermann Ebbinghaus, Short-Term Memory, Sensory Memory

• School: University of Arizona
• Department: Psychology Main
• Course: PSY 150A1
• Professor: Adam Lazarewicz

Document Summary

Memory is an indication that learning has persisted. 3 steps to memory: encoding putting info in, storage holding onto it, retrieval getting info out. Long-term potentiation: making neural connections stronger with repeated stimulation. Memory stores: sets of neurons that retain info. Three stage model of memory (atkinson & shiffrin, 1968): sensory memory, short-term memory, long-term memory. Stores lots of perceptual info for a short time (< 1 sec) Sperling (1960): typically remember 4-5 letters (but report seeing more) All letters are stored briefly in sensory memory. Allows cohesive experience of the world based on senses. Blinking without sensory memory like viewing a slideshow. Speech without sensory memory staccato sounds, not connected words and phrases. Working memory: memory store that holds relatively little info while we are using it. Miller (1956): about 7(+/- 2) pieces of info ( the magical number 7 ) Rehearsal: repeating information over and over to retain it in the working memory.