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In this article , I lay out how my then interest in long - term potentiation ( LTP ) as a model of memory enabled me to recognise the importance of Collingridge et al . ' s discovery - and how I and my colleagues endeavoured to take things forward in the area of learning and memory .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
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