9475
Another group of HIPP - and HCX - lesioned animals trained on the tasks after the lesion showed reduced impairments of the type described above , suggesting that extrahippocampal structures trained after the lesion can assume the role of the hippocampus to some degree .
 None
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
 None