PSYCH 100 Lecture Notes - Lecture 21: Long-Term Memory, Iconic Memory, Echoic Memory
Document Summary
Information processing model: compares the human brain to a computer. However, our brains are not actually like computers. Atkinson-shriffin proposed that there are three areas that the processing of memory goes through: sensory memory, short term memory, and long term memory. Iconic memory: a brief visual photo of what you are seeing (lasts only a fraction of a second) Echoic memory: brief auditory memory of what you are hearing (lasts 3-4 seconds) Very limited capacity (7 plus or minus 2 chunks of memory) Can keep information here longer with rehearsal. Can store more information here with chunking. Can feed back into short term memory. Information may be permanent but can be distorted. Procedural: memories of common physical procedures (muscle memories: mostly accessed implicitly (without thinking, highly robust to amnesia. Episodic: memory of things that we have personally experienced (personal episodes) Semantic: memory of general knowledge, facts, and word meanings.
