Complex sentence: Alternatively, the disruption could occur during the process of re-externalizing ones inner voice, resulting in an apparent second voice that seems alien to the individual; a problem that would be interpreted as a level four to level one error.
Split into simpler sentences: Alternatively, the disruption could occur during the process of re-externalizing ones inner voice, resulting in an apparent second voice that seems alien to the individual. A problem that would be interpreted as a level four to level one error.