Addiction and neural ageing
Addiction and neural ageing

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Glossary


Glossary for SD805_2
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W

word completion task

In this test, subjects are presented with a three-letter word-fragment and asked to write down the first word they think of, or that had appeared on the previously presented list. Subsequently, subjects are asked to complete fragments. The score is the number of completed words that were elicited.


working memory

Memory where information is only stored for the period of time in which it is needed.

See also short-term memory.

wound contraction

Closure of a wound by contraction of a ring of contractile cells differentiated from fibroblasts, producing a continuous layer of dermis which covers the wound.


Β

β-amyloid

Also referred to as amyloid-

β (abbreviated to Aβ). It is a peptide derived from the larger amyloid precursor protein (APP) and is the principal component of amyloid fibrils. The specific role of β-amyloid is unclear, but it is thought that amyloid deposits may cause neurons to degenerate. Amyloid deposits also occur in the brains of older Down’s syndrome patients.


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