879
Hence , one might circumvent the effect of potential learning impairments on reward anticipation processes by the training of abstract reward cues ( as in the current and in Samanez - Larkin ' s study ) or by using explicit and concrete rewards .
 None
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Anatomy 
Text: {0} 
Answer:
 None