Habitual lack of attention towards unpleasant or anxiety-provoking stimuli.
Example: You attempt to explain dietary restrictions to an adult-onset diabetic who is reticent about changing her eating habits. She has unusual difficulty retaining your instructions.
Grinnell, R. (2008). Selective Inattention. Psych Central. Retrieved on May 6, 2015, from http://psychcentral.com/encyclopedia/2008/selective-inattention/