What is the meaning of the semantic memory

semantic memory

semantic memory [from Greek semantikos = indicative],E.semantic memory, Part of the explicit memory, which contains facts and word meanings (lexicon), but not the autobiographical memories (episodic memory). The main neuronal substrates are the temporal lobes and the diencephalon. - There are patients with retrograde amnesia who have largely lost their semantic memory due to a lesion (e.g. in the anterior temporal lobe as a result of encephalitis), although their episodic memory still works surprisingly well. For example, you can effortlessly memorize your marriage or the death of your parents, but you no longer know the meaning of many everyday words. For example, you have forgotten everything about famous people or have forgotten what color a tiger's fur is or where you can buy soap (see additional information). Memory.

semantic memory

Older people with so-called semantic dementia, whose episodic memory (in contrast to patients with Alzheimer's disease) is largely intact. They struggle to name everyday things, have impoverished vocabulary and a limited understanding of words. Your knowledge of words, objects and facts crumbles more and more. Although they still have a general categorical knowledge (e.g. differentiation between animate and inanimate), specific attributes have become inaccessible to them. For example, a patient who was shown a picture of a deer said: "Animal, gives milk like a sheep."