Decisions are NOT made consciously, consciousness is the method by which decisions are conveyed to other centers in the brain. When you are driving and don't remember the drive, but instead let your mind wander, that is when you split into two "consciousness" but there are other thousands of these in your brain and each one believes it is 'you'
From ChatGPT:
Several notable experiments have demonstrated that the brain initiates decisions before we become consciously aware of them:
Benjamin Libet's Experiment (1983):
Overview: Participants were asked to perform simple voluntary movements, such as flexing a finger, while noting the exact moment they became aware of the intention to move.
Findings: Libet discovered that brain activity, termed the "readiness potential," began approximately 500 milliseconds before participants reported conscious awareness of their decision to move.
Wikipedia
John-Dylan Haynes' fMRI Study (2008):
Overview: Utilizing functional magnetic resonance imaging (fMRI), researchers aimed to predict participants' decisions before they became conscious of them.
Findings: The study revealed that patterns of brain activity in the frontopolar cortex could predict the outcome of a decision up to 10 seconds before it entered conscious awareness.
Nature
Soon et al.'s Abstract Decision-Making Study (2013):
Overview: Participants chose between performing a word task or an arithmetic task.
Findings: Brain activity indicated the decision up to 4 seconds before participants were consciously aware of their choice.
The Team W Blog
These experiments suggest that unconscious brain processes play a significant role in initiating decisions before they reach our conscious awareness.