Complex sentence: Not long after Genie moved in her caretakers began subjecting her to extreme physical and emotional abuse which deeply traumatized her, causing her to again experience both incontinence and constipation and to revert to her coping mechanism of silence.
Split into simpler sentences: Not long after Genie moved in her caretakers began subjecting her to extreme physical and emotional abuse, which deeply traumatized her. As a result she again began to experience both incontinence and constipation, and reverted to her coping mechanism of silence.