Sumary of What types of memories are forgotten in Alzheimer’s disease?:
- Alzheimer’s disease, a type of neurodegenerative dementia that affects memory, is well known in Canada, where more than half a million people live with it.
- As researchers at the Laboratory of Neuropsychology of Aging at the research centre of the Institut universitaire de gériatrie de Montréal, we are studying this question.
- But memory is not a single entity, like a basket in which all our memories are piled together.
- So it’s important to recognize that there are different types of memory, and to what extent these are affected by Alzheimer’s disease.
- Episodic memory One type of memory includes the personal memories of events we experienced since our early years.
- A bit like a photo album, episodic memory includes things like memories of our childhood, the first time we moved, our best vacation, but also what we did last weekend and what we had for breakfast this morning.
- Semantic memory Unlike episodic memory, semantic memory gathers memories that do not need to be reactivated by putting them into context.
- We are referring here to general knowledge about the outside world, which is not linked to a specific place or time.