PSY397H5 Lecture Notes - Lecture 6: Indium Phosphide, Spatial Memory, Anterograde Amnesia
Document Summary
The hippocampal circuit and input/output pathways: Dendrite gyrus (dg) comprise of tiny neurons and the ca1 and ca3 are large pyramidal cells. The ca1 and ca3 are the most important memory processing area in the brain. These cells are sensitive to external input (bad and good input) and stimuli. Well designed to be plastic and receptive. Peripheral pathway synapses on dg neurons, in which the input (information) comes from higher cortical area and functions. Ca1 where the information will be analyzed and sent back to the cortex and other brain regions. When a stimulus comes from the environment, neurons start firing depending on how strong these synaptic connections are. Which memories are triggered is based on which ones have the strongest synaptic connection. Had epilepsy as a child possibly due to abnormal circuitry in the brain. Removed brain that was overacting during seizures and he began to function normally again.
