Well, that would be a bit like the opposite of blindsight, being forced to do something consciously that most of us do unconsciously. I'm not sure which region

Well, that would be a bit like the opposite of blindsight, being forced to do something consciously that most of us do unconsciously. I'm not sure which regions subserve facial expression recognition (probably amygdala, FFA and others), but it could be a deficit in those regions. Alternatively, if you think you have Asperger's/ASD, they tend to have general deficits in emotion-reading and theory-of-mind-type tasks.