Wednesday, November 24, 2010

Phase II Part IV definitions 21-25

Echoic Memory: A phenomenon in which there is a brief mental echo that continues to sound after an auditory stimulus has been heard, like replaying a sound in the mind.

Long-term Potentiation (LTP): Long lasting enhancement in signal transmission between two neurons that results from stimulating them at the same time, similar to long-term memory.

Amnesia: A condition in which memory such as stored memories is disturbed or lost. Organic causes are things such as damage to the brain, while functional causes are things such as a mental disorder.

Implicit Memory: A type of memory in which previous experiences aid in the performance of a task without concious awareness of the previous experiences.

Explicit Memory: The conscious, intentional recollection of previous experiences and information.

Hippocampus: A component of the brain in mammals that belings to the limbic system. It plays important roles in long-term memory and spatial navigation. Alzheimer's Disease tends to affect the hippocampus, impairing memory.

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