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24- storage, retaining info in the brain.docx

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PSYC 1000
Benjamin Giguere

STORAGE: RETAINING INFORMATION IN THE BRAIN  Our capacity for storing long-term memories is essentially limitless  Our brains are not like attics, which once filed can store more items only if we discard old ones Retaining Information in the Brain  Despite our brain’s vast storage capacity, we do not store information as libraries store their books, in discrete, precise locations. Instead many, parts of the brain interact as we encode, store, and retrieve the information that forms our memories Explicit-Memory System: the Frontal Lobes and Hippocampus  The network that processes and stores explicit memories (memory of facts and experiences that one can consciously know and declare) includes frontal lobes and hippocampus  When you summon up a mental encore of a past experience, many brain regions send input to your frontal lobes for working memory processing  Left and right frontal lobes process different types of memories  Recalling a password=left; recalling visual party scene=right  explicit memories for facts and episodes are processed in the hippocampus and fed to other brain regions for storage  damage to hippocampus disrupts the recall of explicit memories  with left-hippocampus damage people have trouble remembering information, with right they have trouble recalling visual designs and locations  sub regions of hippocampus serve different functions  one part is active as people learn to associate names with faces; another part is active as memory champions engage in spatial mnemonics; rear area processes spatial memory  memories are not permanently stored in hippocampus act as loading dock where brain registers and temporarily holds elements of a remembered episode than migrates to other storage  sleep supports memory consolidation  during sleep the hippocampus processes memories for later retrieval  cortex areas surrounding the hippocampus support the processing and storing of explicit memories Implicit-Memory System: the Cerebellum and Basal Ganglia  implicit memory: retention independent of conscious recollection  the cerebellum plays key role in forming and storing the implicit memories created by classical conditioning  with damaged cerebellum, people cannot develop certain conditioned reflexes  the basal ganglia, deep brain structures involved in motor movement, facilitate formation of our procedural memories for skills  the basal
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