Therefore, understanding the lack of remembrance for God of the sins of those who have trusted in Christ, from such understanding we conclude that we have been justified or rendered innocent in His sight. This removal of the conscience of sins does not have to do with the observation of brainwaves on a machine or the breath of a sentient creature in the sense of conscience as a detailed mental awareness of sins. Granted, the 5 senses certainly contribute to the thought process. That is rather obvious. But where I think we have erred is in our analysis and theory of the thoughts as a whole.
Thought is absolutely immaterial.
The conscience of sin is uniquely covenantal. Law in the garden produced an awareness of sin. How that transferred to the rest of covenantal man, I know not. The Gospel of Christ was that which would resurrect the unbeliever to condemnation and the believer to everlasting life. The pure and holy standard is now established in a man, Christ Jesus.