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Human Performance

2.7.1.2 How the brain forgets

In fact, we cannot lose items from our long-term memory on their own.

However, several factors can lead to long-lasting and severe forgetfulness.

Illnesses, concussions, shock, encephalitis, brain tumors, and chronic alcoholism
can cause memory damage.

We can also forget something if we do not use it. The new brain connections we

made when we learned something become weaker, and forgetfulness is due to

the weakening of these new brain traces over time.

Much is stored in memory, but we just cannot retrieve it because the traces of

that particular knowledge have been erased by new connections.

2.7.1.3 Three types of memory

- Sensory memory

- Short-Term memory

- Long-Term memory

The interdependence of these types can be represented as follows:

Flight Theory PPL(A)(UL)/LAPL Henning Andersen, Midtjysk Flyveskole© 2025 186