any image being processed by the brain is automatically appraised and marked with a value in a process based on the brain’s original dispositions (its biological value system), as well as on the dispositions acquired over lifelong learning.
Damasio argues that a biological value system stamps every consciously processed image with valence, integrating innate dispositions and learned experience into the fabric of memory itself.
, Self Comes to Mind: Constructing the Conscious Brain, 2010thesis