temporal lobe is used for our memory of visual (non-verbal) material, such as faces or scenes. There are also different types of memory. Episodic memory, as its name suggests, is our memory of events or episodes, which are recorded with a reference to the time when they occurred (for example: 'I ate eggs for breakfast this morning'). Meanwhile, semantic memory can be thought of as our own encyclopaedia for facts and figures (for example: 'Eggs have a shell, are laid by hens, and can be eaten boiled, scrambled or fried'). In Alzheimer's disease it is the episodic memory that is most commonly damaged. It is not yet clear exactly how or where long-term memories are stored, but it seems that memories are achieved by strengthening the connections between relevant nerve cells. And it does seem clear that some remote or distant memories, such as where one went to school, are stored more deeply than less familiar or recent memories, such as what one did yesterday. This may be because certain poignant or important events have been re-remembered many times over the years, and so are more rehearsed than recent memories. This is why some people with Alzheimer's disease may find it easier to discuss certain often-recalled aspects of their childhood than what has happened that day. The frontal lobe The frontal lobe contains several parts, which all act together to form our 'executive' or management' centre. These parts carry out the following activities: Planning actions and learning new tasks ?